Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5199722 | Seal assembly for stirling engine | Tunesaku Itaba, Koichiro Kasahara, Yutaka Momose, Tetsumi Watanabe, Hiroyuki Katsuda | 1993-04-06 |
| 4984812 | Oil seal assembly | Tunesaku Itaba, Koichiro Kasahara, Tomokimi Mizuno, Yutaka Momose | 1991-01-15 |
| 4722535 | Oil ring structure having reduced rigidity | Yorishige Maeda, Shizuo Shinada, Sumio Ono | 1988-02-02 |
| 4580254 | Automatic disc selection type reproducing apparatus | Shigeru Hojyo, Tsutomu Kojima, Toshiyuki Dateyama, Yoshitaka Koseki | 1986-04-01 |
| 4542907 | Corrugated expander for piston ring assembly | Ko Chiba, Hiroshi Miida, Sumio Ono | 1985-09-24 |