Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10655557 | Control device of internal combustion engine | Satoshi Matsuda, Masahiro Toyohara, Osamu Mukaihara | 2020-05-19 |
| 5160476 | Method for producing a resin pipe for use as the inner lining of existing pipes | Akihiko Tsuda, Shinichi Nawata | 1992-11-03 |
| 5147697 | Polyvinyl chloride pipe for the inner lining of existing pipes | Akihiko Tsuda, Shinichi Nawata | 1992-09-15 |