Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855102 | Sintering method | Ryoji Okada, Mitsuaki Haneda, Takeshi Araya | 1989-08-08 |
| 4812278 | Process for preparing mold | Tatsuo Natori, Takashi Shimaguchi, Toshihiro Yamada, Akihide Watanabe, Kensuke Kanekatsu | 1989-03-14 |