Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643174 | Endoscopic guide tube with embedded coil spring | Zenetu Suzuki, Yasunobu Izumi | 1997-07-01 |
| 5633848 | Method and apparatus for cleaning an optical disk head on the basis of time accumulation | Takashi Masaki, Shigenori Yanagi | 1997-05-27 |
| 5619487 | Optical data readout with two beams on three tracks | Takaya Tanabe, Kikuji Katoh, Hisanobu Dobashi | 1997-04-08 |