Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11256050 | Optical communication module | Hayato Minekawa, Shigeru Tokita, Koichi Omori, Saki Narisawa | 2022-02-22 |
| 6603110 | Temperature compensating circuit, temperature compensating logarithm conversion circuit and light receiver | Tadaaki Fujii, Tomonao Kikuchi, Tadashi Hatano, Yasuhiro Yamada, Takayuki Nakao +5 more | 2003-08-05 |
| 6501583 | Optical receiver module optical transmitter module phase-locked loop circuit voltage-controlled oscillator and frequency response controllable amplifier | Mitsuo Akashi, Hiroki Irie, Yasuhiro Yamada, Naohiko Baba, Tomonao Kikuchi | 2002-12-31 |
| 6426495 | Temperature compensating circuit, temperature compensating logarithm conversion circuit and light receiver | Tadaaki Fujii, Tomonao Kikuchi, Tadashi Hatano, Yasuhiro Yamada, Takayuki Nakao +5 more | 2002-07-30 |
| 6229832 | Optical wavelength stability control apparatus, optical transmitter and multiple wavelength transmitter | Naohiko Baba, Hideyuki Serizawa, Tadashi Hatano, Yasuhiro Yamada, Norio Chujo | 2001-05-08 |