Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4358234 | Part fixing system | Tetuo Takegawa, Yoichi Kikuchi | 1982-11-09 |
| 4312165 | Bracket for head of panel fastener | — | 1982-01-26 |
| 4284378 | Fastener for panels | — | 1981-08-18 |