Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5529160 | Clutch drum made of metallic plate and method of manufacturing same | Haruo Tanaka, Yoichi Kojima, Yoshihiro Kodama | 1996-06-25 |
| 5447048 | Clutch drum and apparatus for manufacturing same | Haruo Tanaka, Yoichi Kojima, Yoshihiro Kodama, Yorinori Kumagai | 1995-09-05 |
| 5388474 | Clutch drum and apparatus for manufacturing same | Haruo Tanaka, Yoichi Kojima, Yoshihiro Kodama, Yorinori Kumagai | 1995-02-14 |
| 4935085 | Process for producing urethane die | Yoshikuni Maruyama, Hiroshi Itoh, Kesao Taguchi, Terumi Nagao | 1990-06-19 |
| 4809762 | Method of casting a composite metal article | Hiroshi Ito, Terumi Nagao, Yohikuni Maruyama, Toshitake Kanno | 1989-03-07 |