Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6149860 | Carburization and quenching apparatus | Taichiro Furukawa, Shingo Mizoguchi, Tadayoshi Yoshioka, Yukio Hashimoto | 2000-11-21 |
| 5667603 | Hardening process and apparatus for holed flat parts | Tadayoshi Yoshioka, Katsumasa Toyoda, Shinichi Takizawa | 1997-09-16 |
| 5581410 | Resin-coupled optical element and method of production | Koji Nakada, Takayuki Akiyama | 1996-12-03 |
| 4318603 | Film rewind device in a camera | Koichi Daitoku, Hatsuo Sakamoto, Nobuhiko Terui, Toshiaki Hozumi, Yoshio Sekine +7 more | 1982-03-09 |