Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10808301 | Magnesium alloy and method of manufacturing same | Yuichi Ienaga | 2020-10-20 |
| 8365696 | Piston device for internal combustion engines | — | 2013-02-05 |
| 7963212 | Combination of a piston and a piston ring | — | 2011-06-21 |
| 7574795 | Method of manufacturing connecting rod | Toyotaka Kinoshita | 2009-08-18 |
| 7462576 | Automobile exhaust gas purifying combustion catalysts | Tadahisa Masatani, Miyako Koga, Kazuo Shibahara, Kenichi Tsuge | 2008-12-09 |
| 7089902 | Sintered alloy valve seat and method for manufacturing the same | Kenichi Sato, Arata Kakiuchi, Teruo Takahashi, Hiroyuki Oketani | 2006-08-15 |
| 6454271 | Combined oil ring | — | 2002-09-24 |
| 6312159 | Bearing metal positioning structure in a split connecting rod | Toyotaka Kinoshita, Tadashi Kato, Tetsuya Tosaka | 2001-11-06 |
| 6261388 | Cold forging steel having improved resistance to grain coarsening and delayed fracture and process for producing same | Manabu Kubota, Tatsuro Ochi, Hideo Kanisawa, Atsushi Murakami | 2001-07-17 |
| 5651553 | Antirotation structure for combined oil ring | Yoshio Naruse | 1997-07-29 |
| 5469616 | Method of manufacturing a side rail of a combined oil ring | Satomichi Miyazaki, Akira Harayama, Nobuyuki Kazama | 1995-11-28 |
| 5316321 | Nonferrous piston ring with hard surface treatment layer | Yoshio Naruse | 1994-05-31 |
| 5310827 | Polyamide copolymers | Yukiatsu Komiya, Koji Hirai, Setuo Yamashita, Shinji Komori, Takuji Okaya | 1994-05-10 |
| 5308089 | Combined oil ring | — | 1994-05-03 |
| 5241748 | Method for manufacturing a compression ring | — | 1993-09-07 |
| 5093437 | Polyamide copolymers | Yukiatsu Komiya, Koji Hirai, Setuo Yamashita, Shinji Komori, Takuji Okaya | 1992-03-03 |
| 4816544 | Polyamideimide elastomer and production thereof | Yukiatsu Komiya, Koji Hirai, Takuji Okaya | 1989-03-28 |
| 4368170 | Method of operating nuclear reactors | Masaomi Oguma | 1983-01-11 |