Ritsuya Iwai
Director/Board Member at Nippon Steel Pipe Co., Ltd.
Active connections
| Name | Gender | Age | Linked companies | Collaboration |
|---|---|---|---|---|
| Eiji Hashimoto | M | 68 | 12 years | |
| Akihiko Inoue | M | 66 | 12 years | |
| Katsuhiro Miyamoto | M | 67 | 12 years | |
| Mutsutake Otsuka | M | 81 | 10 years | |
| Shin Nishiura | M | 65 | 12 years | |
| Akira Shinjo | M | - |
Nippon Steel Pipe Co., Ltd.
 Nippon Steel Pipe Co., Ltd. SteelNon-Energy Minerals Nippon Steel Pipe Co., Ltd. manufactures steel pipes and tubes. The company was founded in February 1933 and is headquartered in Tokyo, Japan. | - |
| Yutaka Ando | M | 65 | 12 years | |
| Shinichi Nakamura | M | 65 | 12 years | |
| Ichiro Fujisaki | M | 76 | 10 years | |
| Masato Matsuno | M | 67 | 12 years | |
| Atsushi Iijima | M | 65 | 11 years | |
| Atsuhiko Yoshie | M | 69 | 12 years | |
| Shinji Tanimoto | M | 67 | 12 years | |
| Yoichi Furuta | M | - | 12 years | |
| Yoshiaki Tamura | M | 65 |
Nippon Steel Pipe Co., Ltd.
Nippon Steel Pipe Co., Ltd. SteelNon-Energy Minerals Nippon Steel Pipe Co., Ltd. manufactures steel pipes and tubes. The company was founded in February 1933 and is headquartered in Tokyo, Japan. | - |
| Ichiro Sato | M | 57 | 7 years | |
| Masato Tsuribe | M | 65 | 12 years | |
| Motofumi Koyuba | M | - |
Nippon Steel Pipe Co., Ltd.
Nippon Steel Pipe Co., Ltd. SteelNon-Energy Minerals Nippon Steel Pipe Co., Ltd. manufactures steel pipes and tubes. The company was founded in February 1933 and is headquartered in Tokyo, Japan. | - |
| Hirofumi Okuda | M | - |
Nippon Steel Pipe Co., Ltd.
Nippon Steel Pipe Co., Ltd. SteelNon-Energy Minerals Nippon Steel Pipe Co., Ltd. manufactures steel pipes and tubes. The company was founded in February 1933 and is headquartered in Tokyo, Japan. | - |
| Takeo Aoyama | M | - |
Nippon Steel Pipe Co., Ltd.
Nippon Steel Pipe Co., Ltd. SteelNon-Energy Minerals Nippon Steel Pipe Co., Ltd. manufactures steel pipes and tubes. The company was founded in February 1933 and is headquartered in Tokyo, Japan. | - |
| Akihiko Ota | M | - |
Nippon Steel Pipe Co., Ltd.
Nippon Steel Pipe Co., Ltd. SteelNon-Energy Minerals Nippon Steel Pipe Co., Ltd. manufactures steel pipes and tubes. The company was founded in February 1933 and is headquartered in Tokyo, Japan. | - |
Connections Chart
Multi-company connection
Former connections
| Name | Gender | Age | Linked companies | Collaboration |
|---|---|---|---|---|
| Fumio Hombe | M | 77 |
Sumitomo Metal Industries Ltd.
 Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 42 years |
| Kiyotaka Nogi | M | 71 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan
Kyoto University
| 21 years |
| Hiroshi Tomono | M | 78 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 41 years |
| Toshiharu Sakae | M | 68 | - | |
| Machi Nakata | M | 68 |
Kyoto University
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 42 years |
| Soichiro Sakuma | M | 68 | 6 years | |
| Kosei Shindo | M | 74 | - | |
| Shinji Morinobu | M | 70 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan
Kyoto University
| 43 years |
| Shinichi Miki | M | 73 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan
Kyoto University
| 41 years |
| Shoji Muneoka | M | 78 | - | |
| Shinya Higuchi | M | 70 | - | |
| Yasumitsu Saeki | M | 69 | 6 years | |
| Shinji Fujino | M | 68 | 6 years | |
| Takayoshi Meiga | M | 69 |
Kyoto University
| 4 years |
| Yoshitaka Hotta | M | 73 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 38 years |
| Syuichiro Kozuka | M | 75 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 40 years |
| Kenji Takahashi | M | 68 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 37 years |
| Yasuyuki Tozaki | M | 77 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 41 years |
| Akio Migita | M | 62 | 11 years | |
| Shinya Okuda | M | 71 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 7 years |
| Hisashi Nakagawa | M | 73 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan
Kyoto University
| 40 years |
| Toshimichi Fujii | M | 70 |
Kyoto University
| 5 years |
| Hidemasa Nakajima | M | 69 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 37 years |
| Katsuyoshi Iwata | M | 69 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 32 years |
| Hiroki Kawabata | M | 68 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 30 years |
| Masakazu Iwaki | M | 75 | - | |
| Hirotsune Satoh | M | - | - | |
| Tsuneo Miyamoto | M | 68 | 4 years | |
| Yoshitsugu Sakamoto | M | 68 | 3 years | |
| Katsuhiko Ota | M | 70 | 4 years | |
| Yutaka Takeuchi | M | 67 | 7 years | |
| Tsuyoshi Nomura | M | 71 |
Kyoto University
| 6 years |
| Toshiyuki Kishibe | M | 67 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 34 years |
| Toshihiko Kunishi | M | 64 | 6 years | |
| Norio Katsuyama | M | 75 | - | |
| Yasuo Imai | M | 75 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 5 years |
| Yoshinari Ishizuka | M | 75 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 38 years |
| Mitsunori Okada | M | 73 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 38 years |
| Fumio Otaguro | M | 71 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan
Kyoto University
| 39 years |
| Kazuyuki Tanaka | M | 71 |
Kyoto University
| 4 years |
| Takahisa Miyake | M | 69 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 33 years |
| Akiyuki Iwata | M | - |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | - |
| Toru Kaneko | M | 67 |
Sumitomo Metal Industries Ltd.
Sumitomo Metal Industries Ltd. Metal FabricationProducer Manufacturing Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan | 30 years |
| Yoshihiro Aburatani | M | 68 |
Kyoto University
| 1 years |
| Noriyuki Hashimoto | M | 70 |
Kyoto University
| 4 years |
| Toshikazu Nambu | M | 65 |
Kyoto University
| 4 years |
| Yoshitaka Mimori | M | 68 |
Kyoto University
| 4 years |
| Yukiatsu Komiya | M | 69 |
Kyoto University
| 3 years |
| Masanori Matsuura | M | 70 |
Kyoto University
| 4 years |
| Toji Shiho | M | - |
Kyoto University
| 3 years |
| Yutaka Shimizu | M | 66 |
Kyoto University
| 4 years |
| Shinichiro Yamane | M | 66 |
Kyoto University
| 4 years |
| Shinichi Nakamura | M | 61 |
Kyoto University
| 4 years |
| Hirofumi Takeda | M | 63 |
Kyoto University
| 4 years |
| Naosuke Kawasaki | M | - |
Kyoto University
| 4 years |
| Akio Tajima | M | 68 |
Kyoto University
| 4 years |
| Hiroshi Tonoya | M | 70 |
Kyoto University
| 3 years |
| Naoto Umehara | M | 69 |
Kyoto University
| 4 years |
| Shiro Sugata | M | 74 |
Kyoto University
| 4 years |
| Masahiko Mori | M | 62 |
Kyoto University
| 4 years |
| Akio Shikamura | M | 69 |
Kyoto University
| 4 years |
| Haruyuki Urata | M | 69 |
Kyoto University
| 4 years |
| Yoshihiko Sakanashi | M | 70 |
Kyoto University
| 4 years |
| Nobuya Suzuki | M | 69 |
Kyoto University
| 4 years |
| Tadashi Shimamoto | M | 70 |
Kyoto University
| 4 years |
| Chisato Nojiri | M | - |
Kyoto University
| 3 years |
| Yukihisa Takeuchi | M | 68 |
Kyoto University
| 4 years |
| Yasushi Ochiai | M | 68 |
Kyoto University
| 4 years |
| Takashi Niino | M | 69 |
Kyoto University
| 4 years |
| Yoshiyuki Arakawa | M | 76 |
Kyoto University
| 4 years |
| Katsunori Furuichi | M | 63 |
Kyoto University
| 4 years |
| Hayato Saeki | M | 69 |
Kyoto University
| 4 years |
| Susumu Nishikawa | M | 75 |
Kyoto University
| 3 years |
| Seizo Onoe | M | 67 |
Kyoto University
| 1 years |
| Hiroji Onishi | M | 70 |
Kyoto University
| 4 years |
| Masahiro Hanaoka | M | 69 |
Kyoto University
| 4 years |
| Akihiko Tsukamoto | M | 69 |
Kyoto University
| 4 years |
| Shohei Manabe | M | 68 |
Kyoto University
| 4 years |
| Hiroto Yasuura | M | 70 |
Kyoto University
| 3 years |
Statistics
| Country | Connections | % of total |
|---|---|---|
| Japan | 100 | 100.00% |
Age of Connections
Active
Past
Male
Female
Members of the board
Executives
Origin of connections
- Stock Market
- Insiders
- Ritsuya Iwai
- Personal Network
