Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871107 | Method for bonding ceramics to each other or a ceramic to a metal | Toshihiro Yamada | 1989-10-03 |
| 4854495 | Sealing structure, method of soldering and process for preparing sealing structure | Akihiko Yamamoto, Toshihiri Yamada, Motohiro Satou, Keiji Taguchi, Kazuaki Yokoi | 1989-08-08 |