Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823446 | Fluid-tight slide fastener stringer | Noritaka Tsubata, Kozo Watanabe | 1989-04-25 |
| 4744133 | Fluid-tight slide fastener stringer | Noritaka Tsubata, Kozo Watanabe | 1988-05-17 |
| 4724586 | Water-resistant slide fastener and method of manufacturing the same | Yoshitoki Tsubokawa | 1988-02-16 |
| 4607416 | Fluid-tight slide fastener | Toshiaki Takizawa | 1986-08-26 |
| 4596065 | Method of producing an airtight and waterproof slide fastener | Toshiaki Takizawa | 1986-06-24 |
| 4580321 | Fluid-tight slide fastener | Toshiaki Takizawa | 1986-04-08 |
| 4427458 | Method for forming protective surface film on aluminum shaped articles | Akira Hasegawa | 1984-01-24 |