Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10344860 | Highly heat conductive piston ring for internal combustion engine | Tsugane Hirase, Hiromichi Yokokawa, Kazuhiro Fujimura, Junpei Ogawa, Takaaki Kondo +2 more | 2019-07-09 |
| 8592050 | Piston ring | Junpei Ogawa, Takaaki Kondou, Toyoki Iguchi, Takuma Suzuki, Takeshi Makita +2 more | 2013-11-26 |
| 7670444 | Non-heat treated steel for hot forging with easy fracture splitting | Koichiro Inoue, Sadayuki Nakamura, Kouji Itakura, Yoshio Okada, Noriyuki Shiwaku +4 more | 2010-03-02 |
| 7500417 | High-strength connecting rod and method of producing same | Junpei Ogawa, Yoshio Okada, Jun Ikeuchi, Masashi Yamaguchi | 2009-03-10 |
| 6562098 | Wear resistant sintered member | Hiroki Fujitsuka, Hideaki Kawata, Koichiro Hayashi, Koji Koyanagi, Akira Fujiki +4 more | 2003-05-13 |
| 5859376 | Iron base sintered alloy with hard particle dispersion and method for producing same | Akiyoshi Ishibashi, Kunio Maki, Akira Fujiki | 1999-01-12 |