Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5918495 | Multistage gear-rolling apparatus | Noritaka Miyamoto, Masazumi Onishi, Yasuyuki Fujiwara, Toshiaki Tanaka, Shintaro Igarashi +2 more | 1999-07-06 |
| 5824168 | Process for gear-rolling a high accuracy gear | Noritaka Miyamoto, Masazumi Onishi, Yasuyuki Fujiwara, Toshiaki Tanaka, Masatoshi Sawamura | 1998-10-20 |
| 5690756 | Method for producing cast iron gear | Yasuyuki Fujiwara, Izuru Yamamoto, Masazumi Onishi, Toshiaki Tanaka, Yoshinari Tsuchiya | 1997-11-25 |
| 5632827 | Aluminum alloy and process for producing the same | Hironori Fujita, Fumio Nonoyama | 1997-05-27 |
| 5494541 | Production of aluminum alloy | Hironori Fujita, Fumio Nonoyama | 1996-02-27 |
| 4900459 | Metal processing lubricating oil composition and process for producing the same | Toshihide Ohmori, Kazuhiko Kitamura, Masuhiko Kawamura, Tokuo Shirai, Yukio Sugiura +1 more | 1990-02-13 |