![Koichi Yamashita](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>)
Koichi Yamashita
Founder at
YOUJI CORPORATION
Net worth: 3 M $ as of 2026-08-30
Profile
Koichi Yamashita is the founder of Youji Corp.
where he holds the title of President & Representative Director since 1972.
He also worked as a Director at Yamazen Corp.
and Japan Educational Management Institute.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
YOUJI CORPORATION 2.58% | 2026-03-30 | 304,560 ( 2.58% ) | 3 M $ | 2026-08-30 |
Koichi Yamashita active positions
| Companies | Position | Start |
|---|---|---|
| YOUJI CORPORATION | Founder | 1972-09-13 |
Former positions of Koichi Yamashita
| Companies | Position | End |
|---|---|---|
| YAMAZEN CORPORATION | Director/Board Member | - |
Japan Educational Management Institute | Director/Board Member | - |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
9
1st degree connections
3
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 3 |
|---|---|
Yamazen Corp.
 Yamazen Corp. Wholesale DistributorsDistribution Services Sells production goods, housing materials and home appliances | Distribution Services |
Youji Corp.
 Youji Corp. Other Consumer ServicesConsumer Services Engages in the provision of preschool and kindergarten education-related services | Consumer Services |
Japan Educational Management Institute |
- Stock Market
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- Koichi Yamashita
