Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5977888 | Switching device of thin type and display device with switch | Akito Okamoto, Yoshitaka Tsuji | 1999-11-02 |
| 5453867 | Analog optical transmission system | Jun Ohya, Hisanao Sato | 1995-09-26 |
| 5448743 | General I/O port interrupt mechanism | Dale E. Gulick, Joe W. Peterson, Munehiro Yoshikawa, Hiroshi Matsubara, Kazushige Tsurumi | 1995-09-05 |
| 5436751 | Analog optical transmission system and optical fiber amplifier | Jun Ohya | 1995-07-25 |
| 5341237 | Rare earth ion doped optical element | Genji Tohmon, Hisanao Sato, Jun Ohya | 1994-08-23 |
| 5321708 | Optical fiber amplifier doped with dysprosium ion for the 1.3 .mu.m wavelength band | Genji Tohmon, Hisanao Sato, Jun Ohya | 1994-06-14 |
| 4910738 | Short optical pulse generators using mode-locked semiconductor lasers oscillating in transverse magnetic modes | Jun Ohya | 1990-03-20 |
| 4899360 | Semiconductor laser device having monolithically formed active and passive cavities on the same substrate | Jun Ohya, Kenichi Matsuda, Hiroyuki Serizawa | 1990-02-06 |
| 4794608 | Semiconductor laser device | Jun Ohya, Kenichi Matsuda, Hiroyuki Serizawa | 1988-12-27 |
| 4677630 | Oscillation frequency stabilized semiconductor laser | Satoshi Ishizuka, Katsuyuki Fujito, Hisanao Sato | 1987-06-30 |