Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9067470 | Hydraulic shock absorber | Masao Shimasaki, Kimitoshi Sato, Masakazu Kuwahara, Tatsuya Takahashi, Takatoshi Ohmi +2 more | 2015-06-30 |
| 5148233 | Optical attenuator and optical power meter calibration systems with optical-pulse conversion and averaging | Takayuki Imamura | 1992-09-15 |