Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857222 | Absorption type refrigerator and absorbing solution therefor | Heihatiro Midorikawa, Yasumasa Furutani, Michihiko Aizawa | 1989-08-15 |
| 4821148 | Resin packaged semiconductor device having a protective layer made of a metal-organic matter compound | Shiro Kobayashi, Akira Minato | 1989-04-11 |