Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5951944 | Lowly decarburizable spring steel | Katsuyuki Uchibori | 1999-09-14 |
| 5470528 | Low decarburization spring steel | Soichi Takasaki, Kenji Kinoshita | 1995-11-28 |
| 5183634 | High strength spring steel | Tsuyoshi Abe, Nobumasa Umezawa, Tatsuo Fukuzumi, Katsuyuki Uchibori, Junji Ozaki | 1993-02-02 |