Issued Patents All Time
Showing 51–56 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D283838 | Housing for an air conditioner | — | 1986-05-13 |
| 4500427 | Activated-sludge process for wastewater treatment | Akira Suzuki, Yasumi Shioya, Norio Watanabe | 1985-02-19 |
| 4452699 | Method of improving the SVI of mixed liquor in aeration tank | Akira Suzuki, Yasumi Shioya | 1984-06-05 |
| 4398476 | Method for incinerating sewage sludge | Akira Suzuki, Yasumi Shioya | 1983-08-16 |
| 4271734 | Apparatus for guiding continuous chip formed in lathing | Eimei Negishi | 1981-06-09 |
| 4220427 | Apparatus for guiding continuous chip formed in lathing | Eimei Negishi | 1980-09-02 |