Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6008487 | Optical-fiber inspection device | Yoshihiko Tachikawa, Yoshihiro Sampei, Takaaki Hirata, Makoto Komiyama, Yasuyuki Suzuki | 1999-12-28 |
| 5933235 | Optical spectrum analyzer and spectrometer | Yoshihiro Sampei, Yasuyuki Suzuki, Yoshihiko Tachikawa | 1999-08-03 |
| 5844235 | Optical frequency domain reflectometer for use as an optical fiber testing device | Yoshihiko Tachikawa, Yoshihiro Sampei, Takaaki Hirata, Makoto Komiyama, Yasuyuki Suzuki | 1998-12-01 |