Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479280 | Mat base plate | Ken Yamazaki, Yosuke Yamamoto, Takehisa Kinoyama | 1984-10-30 |
| D272877 | Door mat base plate or similar article | Yosuke Yamamoto, Takehisa Kinoyama | 1984-03-06 |
| 4415620 | Mat base plate | Ken Yamazaki, Yosuke Yamamoto, Takehisa Kinoyama | 1983-11-15 |
| D267535 | Doormat support plate or similar article | Ken Yamazaki, Yosuki Yamamoto, Takehisa Kinoyama | 1983-01-11 |
| 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 |