Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5904788 | Method for centering belt-shaped material | Toru Kitajima, Naruhiro Akiyama | 1999-05-18 |
| D319005 | Nut | Takuya Morooka | 1991-08-13 |
| 4887950 | Waterproof nut | Shinichi Iwasaki, Yozo Ishida, Toshikazu Shinogaya, Yuzo Ishizuka | 1989-12-19 |
| 4788022 | Method of manufacturing waterproof nuts | Shinichi Iwasaki, Yozo Ishida, Toshikazu Shinogaya, Yuzo Ishizuka | 1988-11-29 |