![Ryusei Kajiyama](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Ryusei Kajiyama
President at
BIKEN TECHNO CORPORATION
Net worth: 2 M $ as of 2026-08-30
Profile
Ryusei Kajiyama is currently the Chairman at Best Property KK, Vice Chairman at Tokyo Building Maintenance Association, President & Representative Director at Biken Techno Corp., President & Representative Director at Mymcommunity, Inc., and President & Representative Director at Labotech KK.
He previously held positions as President & Representative Director at Kokura Enterprise Co., Ltd. and Managing Director at Singapore Biken Pte.
Ltd. Mr. Kajiyama obtained his undergraduate degree from Nihon University in 1991.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2025-09-29 | 230,000 ( 2.98% ) | 2 M $ | 2026-08-30 |
Ryusei Kajiyama active positions
| Companies | Position | Start |
|---|---|---|
| BIKEN TECHNO CORPORATION | President | 2010-05-31 |
Labotech KK | President | 2000-05-31 |
Mymcommunity, Inc. | President | 2008-11-30 |
Best Property KK
 Best Property KK Real Estate DevelopmentFinance Operates real estate agency | Chairman | 2015-05-31 |
Tokyo Building Maintenance Association | Director/Board Member | 2017-04-30 |
Former positions of Ryusei Kajiyama
| Companies | Position | End |
|---|---|---|
Singapore Biken Pte. Ltd.
 Singapore Biken Pte. Ltd. Miscellaneous Commercial ServicesCommercial Services Engages in facility management business | Chief Executive Officer | - |
Kokura Enterprise Co., Ltd.
 Kokura Enterprise Co., Ltd. Wholesale DistributorsDistribution Services Manufactures and markets petroleum products and building materials and engages in real estate brokerage | President | - |
Training of Ryusei Kajiyama
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
36
1st degree connections
8
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 8 |
|---|---|
Kokura Enterprise Co., Ltd.
Kokura Enterprise Co., Ltd. Wholesale DistributorsDistribution Services Manufactures and markets petroleum products and building materials and engages in real estate brokerage | Distribution Services |
Biken Techno Corp.
 Biken Techno Corp. Miscellaneous Commercial ServicesCommercial Services Provides property and facility management services | Commercial Services |
Nihon University
 Nihon University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Best Property KK
Best Property KK Real Estate DevelopmentFinance Operates real estate agency | Finance |
Mymcommunity, Inc. | |
Labotech KK | |
Singapore Biken Pte. Ltd.
Singapore Biken Pte. Ltd. Miscellaneous Commercial ServicesCommercial Services Engages in facility management business | Commercial Services |
Tokyo Building Maintenance Association |
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