Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864460 | Electrically conducting device for an electrode roller | Kuniyoshi Muramatsu, Masashi Higuchi, Yoshinori Ogi, Hisao Kaji, Katsuhiko Sano +1 more | 1989-09-05 |
| 4822541 | Method of producing a porous ceramic panel | Kazuo Imahashi, Yoshio Nagaya, Shigeo Yoshida, Satoshi Kitagawa, Takatoshi Miyazawa | 1989-04-18 |