Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869871 | Pb-Sn-Sb-In solder alloy | Kenichi Kawai, Nobuo Fukuma, Akira Matsui, Kenichiro Futamura, Tatsuhiko Fukuoka | 1989-09-26 |
| 4830777 | Electric conductive and sliding resin material | Osamu Suzuki, Tatsuhiko Fukuoka | 1989-05-16 |