Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5800640 | Method of producing a light alloy product | Yukio Yamamoto, Makoto Fujita, Nobuo Sakate, Shoji Hirabara | 1998-09-01 |
| 5693158 | Magnesium light alloy product and method of producing the same | Yukio Yamamoto, Makoto Fujita, Nobuo Sakate, Shoji Hirabara | 1997-12-02 |
| 5096662 | Method for forming high abrasion resisting layers on parent materials | Yoshifumi Yamamoto, Shigemi Ohsaki, Norio Yohshina | 1992-03-17 |
| 4969957 | Method of producing a mechanical component with superior fatigue strength | Shigemi Ohsaki, Masami Nishida, Shinya Yamamoto | 1990-11-13 |
| 4738602 | Method for manufacturing an apex seal for a rotary piston engine using high energy heating radiation | Junichi Yamamoto, Yoshifumi Yamamoto, Tsutomu Shimizu | 1988-04-19 |