Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887769 | Electromagnetic fuel injection valve | Yoshio Okamoto, Kyoichi Uchiyama, Haruo Watanabe, Tokuo Kosuge, Akira Onishi +3 more | 1989-12-19 |
| 4861245 | Scroll compressor with sealed pressure space biasing the orbiting scroll member | Kenji Tojo, Kenichi Kawashima, Kazutaka Suefuji | 1989-08-29 |
| 4846309 | Elevator hoisting apparatus | Toshihiko Nara, Tastuhiko Takahashi, Masakatsu Tanaka, Yusho Maue, Naoyuki Tanaka +1 more | 1989-07-11 |
| 4808077 | Pulsationless duplex plunger pump and control method thereof | Tsuneo Kan, Mieko Ishii | 1989-02-28 |
| 4801248 | Variable capacity swash plate compressor | Kenji Tojo, Yuzo Kadomukai, Kunihiko Takao, Atsushi Suginuma, Isao Hayase +1 more | 1989-01-31 |