Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6038063 | Optical amplifier and optical transmission system including the optical amplifier | Hiroshi Nishimoto, Kazuo Yamane, Yumiko Kawasaki, Satoru Okano | 2000-03-14 |
| 5966938 | Peltier control circuit and a peltier device structure | Yasunori Nagakubo, Tetsuo Ishizaka, Shunichi Sato, Saeko Yokoi, Manabu Komiyama +2 more | 1999-10-19 |
| 5945490 | Polyarylene sulfide and a composition thereof | Osamu Komiyama | 1999-08-31 |
| 5900621 | Light transmitter having an automatic bias control circuit | Yasunori Nagakubo, Sadao Ibukuro, Akihiko Hayashi | 1999-05-04 |
| 5777069 | Method of maufacturing a tubular extrusion molding product comprising a high molecular weight polyarylene sulfide | Hidenori Yamanaka, Osamu Komiyama | 1998-07-07 |
| 5736875 | Discrimination circuit capable of automatically optimizing discrimination level and discrimination phase | Hisaya Sakamoto, Yasunori Nagakubo | 1998-04-07 |
| 5680246 | Optical amplifier and optical transmission apparatus | Tsukasa Takahashi, Hiroyuki Itou, Yuji Tamura, Michikazu Shima, Kazuo Yamane +6 more | 1997-10-21 |
| 5646763 | Optical transmitter and laser diode module for use in the optical transmitter | Setsuo Misaizu, Sunao Itou | 1997-07-08 |
| 5515682 | Peltier control circuit and a peltier device structure | Yasunori Nagakubo, Tetsuo Ishizaka, Shunichi Sato, Saeko Yokoi, Manabu Komiyama +2 more | 1996-05-14 |
| 5499258 | Automatic temperature control circuit of laser diode and electric/optical signal converting unit using the same | Michinao Kawano, Setsuo Misaizu, Tomoko Anzai | 1996-03-12 |
| 5164454 | Ethylene graft copolymer and molding resin composition containing the same | Katsufumi Suga, Yoshihiro Yoshinaga, Hiroaki Yoshitomi, Shiro Kojima, Kishiro Azuma | 1992-11-17 |
| 4813048 | Semiconductor laser driving device | Kazuo Yamane, Masakazu Mori, Yoshinori Ohkuma, Kazuhiro Suzuki | 1989-03-14 |
| 4803384 | Pulse amplifier suitable for use in the semiconductor laser driving device | Kazuo Yamane, Masakazu Mori, Yoshinori Ohkuma, Kazuhiro Suzuki | 1989-02-07 |
| 4765735 | Method of measuring a mode partition characteristics of a laser diode and an apparatus of the same | Masakazu Mori, Kazuo Yamane | 1988-08-23 |
| 4759991 | Magnetic recording medium having a lubricating coating layer | Toshiyuki Kanno, Hitoshi Watanabe, Yasutaro Yasuda, Shiro Kojima, Hiroyuki Kato +1 more | 1988-07-26 |