Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5183634 | High strength spring steel | Tsuyoshi Abe, Tatsuo Fukuzumi, Katsuyuki Uchibori, Junji Ozaki, Hiroharu Motomura | 1993-02-02 |
| 5118469 | High strength spring steel | Tsuyoshi Abe, Tatsuo Fukuzumi, Katsuyuki Uchibori | 1992-06-02 |
| 4753423 | Synthetic resin-coated spring and method for making same | Kenji Ukai, Katsumi Yano, Satoru Yamaguchi, Takao Itoga | 1988-06-28 |