![Masunaru Yamakawa](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>)
Masunaru Yamakawa
President at
JIG-SAW INC.
Net worth: 14 M $ as of 2026-08-30
Profile
Masunaru Yamakawa currently works at JIG-SAW, Inc., as President & Representative Director from 2008.
Mr. Yamakawa received his graduate degree in 1989 from Kwansei Gakuin University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
JIG-SAW INC. 13.48% | 2025-12-30 | 910,000 ( 13.48% ) | 14 M $ | 2026-08-30 |
Masunaru Yamakawa active positions
| Companies | Position | Start |
|---|---|---|
| JIG-SAW INC. | President | 2008-08-31 |
Training of Masunaru Yamakawa
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
19
1st degree connections
2
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 2 |
|---|---|
Kwansei Gakuin University
 Kwansei Gakuin University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
JIG-SAW, Inc.
 JIG-SAW, Inc. Data Processing ServicesTechnology Services Engages in IoT bigdata control service | Technology Services |
- Stock Market
- Insiders
- Masunaru Yamakawa
