Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5096662 | Method for forming high abrasion resisting layers on parent materials | Yoshifumi Yamamoto, Katsuya Ohuchi, Norio Yohshina | 1992-03-17 |
| 4969957 | Method of producing a mechanical component with superior fatigue strength | Katsuya Ohuchi, Masami Nishida, Shinya Yamamoto | 1990-11-13 |
| 4743425 | Method of producing ferrous sintered alloys with superior abrasion resistance | Sumio Kamino, Minoru Nitta | 1988-05-10 |