Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888218 | Process for applying a zinc coating to an aluminum article | Masamichi Suzuki, Tadaaki Sano, Tsunehiko Tanaka | 1989-12-19 |
| 4877717 | Process for the production of optical elements | Yasuyuki Todokoro, Kazunari Komenou | 1989-10-31 |
| 4839767 | Element and device for detecting internal faults in an insulating gas charged electrical apparatus | Takeo Yoshioka, Tadao Minagawa, Ichiro Yamasaki, Yoshifumi Matsushita | 1989-06-13 |
| 4831199 | Process for producing a halobenzene | Chizu Komatsu | 1989-05-16 |
| 4822933 | Process for producing a chlorohalobenzene | Yasushi Higuchi | 1989-04-18 |