Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6749959 | Fuel cell gas separator, manufacturing method thereof, and fuel cell | Hiromichi Nakata, Masayoshi Yokoi, Hideo Aihara, Masashi Murate, Yoshifumi Kaji | 2004-06-15 |
| 6651299 | Method and apparatus for manufacturing endless metallic belt, and the endless metallic belt manufactured by the method | Masahiko Mitsubayashi, Hideo Aihara | 2003-11-25 |
| 6609403 | Endless metallic belt and manufacturing method therefor | Masahiko Mitsubayashi, Hideo Aihara | 2003-08-26 |
| 6059899 | Press-formed article and method for strengthening the same | Masashi Shibata, Shinji Kurachi, Kouji Makino | 2000-05-09 |
| 5918495 | Multistage gear-rolling apparatus | Noritaka Miyamoto, Yasuyuki Fujiwara, Toshiaki Tanaka, Shintaro Igarashi, Atsushi Danno +2 more | 1999-07-06 |
| 5824168 | Process for gear-rolling a high accuracy gear | Noritaka Miyamoto, Yasuyuki Fujiwara, Toshiaki Tanaka, Masatoshi Sawamura, Atsushi Danno | 1998-10-20 |
| 5690756 | Method for producing cast iron gear | Yasuyuki Fujiwara, Izuru Yamamoto, Toshiaki Tanaka, Yoshinari Tsuchiya, Atsushi Danno | 1997-11-25 |
| 5522247 | Method and apparatus for manufacturing a corrugated tube | Masahiko Mitsubayashi, Noritaka Miyamoto, Keisuke Kadota, Tohru Shimada | 1996-06-04 |
| 5477976 | Brightening chemical polishing solution for hardened steel article and method of chemically polishing said article in the solution | Kenichi Suzuki, Masaki Kajino, Kazuyoshi Ogawa, Takashi Asano, Mineo Ogino +3 more | 1995-12-26 |
| 5405459 | Production process for producing hollow steel tube of high strength | Noritaka Miyamoto | 1995-04-11 |