Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9574667 | Mechanical seal device | Hidekazu Takahashi | 2017-02-21 |
| 6454268 | Shaft seal device | — | 2002-09-24 |
| 6425583 | Rotary ring and mechanical seal using the same | — | 2002-07-30 |
| 4545009 | Fuel combustion control system | Seiiti Numata, Kanji Hayashi | 1985-10-01 |
| 4302205 | Input control method and means for nitrogen oxide removal | Shinichiro Takemura, Tetsuo Ai, Takaaki Kawasaki | 1981-11-24 |
| 4188190 | Input control method and means for nitrogen oxide removal means | Shinichiro Takemura, Yoshio Ohashi, Athushi Ichioka | 1980-02-12 |