Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4361925 | Mat-base assembly | Yosuke Yamamoto | 1982-12-07 |
| D265704 | Door mat base plate or similar article | Yosuke Yamamoto, Takehisa Kinoyama | 1982-08-10 |
| D265705 | Door mat base plate or similar article | Ken Yamazaki, Yosuke Yamamoto, Takehisa Kinoyama | 1982-08-10 |
| D263541 | Door mat base plate or similar article | Ken Yamazaki, Yosuke Yamamoto, Takehisa Kinoyama | 1982-03-30 |