Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7601389 | Metal material and method for production thereof | Mitsuo Kuwabara, Tadashi Okada, Naoji Yamamoto, Hideo Yoshikawa, Michiharu Hasegawa +4 more | 2009-10-13 |
| 7497243 | Mold for casting and method for manufacture thereof | Hiroaki Koyama, Toshihiro Miyauchi, Yasuhiro Shimamura, Michiharu Hasegawa, Naoji Yamamoto +2 more | 2009-03-03 |