Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854495 | Sealing structure, method of soldering and process for preparing sealing structure | Akihiko Yamamoto, Akiomi Kohno, Toshihiri Yamada, Motohiro Satou, Keiji Taguchi | 1989-08-08 |
| 4808360 | Method of producing mold for slip casting and method of molding slip casting | Tatsuo Natori, Takashi Shimaguchi, Toshihiro Yamada | 1989-02-28 |
| 4795686 | Sodium-sulfur electric cell and process for manufacturing the same | Toshihiro Yamada, Hiroyuki Kawamoto | 1989-01-03 |