Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6379479 | Steel member surface treatment method | Kouji Ohbayashi, Takao Taniguchi, Yoshimi Watanabe | 2002-04-30 |
| 5961751 | Surface processing method for a steel member and surface processed steel member | Takao Taniguchi, Kouji Ohbayashi, Yoshimi Watanabe, Naohisa Momiyama | 1999-10-05 |
| 5934126 | Internally toothed member and method and apparatus for forming the same | Osamu Fukukawa, Hideyuki Nagai, Noah Utsumi, Mitsuhiko Ando, Naoji Kato | 1999-08-10 |
| 5840136 | Temperature-raising bainite forming process | Kouji Ohbayashi, Takatoshi Suzuki | 1998-11-24 |
| 5788034 | Lockup clutch for a torque converter and method of thermally treating a lockup clutch piston | Takao Taniguchi, Masataka Shimazaki, Fumitomo Yokoyama, Hideji Kato, Kouji Ohbayashi +3 more | 1998-08-04 |