Issued Patents All Time
Showing 101–125 of 135 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6092463 | Printing method and printing device | Hiroaki Onishi, Shoji Sato, Ken Takahashi | 2000-07-25 |
| 6061172 | Active optical fiber and optical fiber amplifier | Naomasa Shimojoh, Takafumi Terahara | 2000-05-09 |
| 6036994 | Screen printing method and apparatus therefor | Tetsuya Tanaka, Ken Takahashi, Akihiko Wachi | 2000-03-14 |
| 6034812 | Gain equalizer and optical transmission system having the gain equalizer | — | 2000-03-07 |
| 5991071 | Active optical fiber and optical fiber amplifier | — | 1999-11-23 |
| 5976269 | Printing mask cleaning apparatus and method | Kurayasu Hamasaki, Toshiaki Yamauchi, Kazue Okanoue, Kazumi Ishimoto, Ken Takahashi +1 more | 1999-11-02 |
| 5948466 | Method for forming fiducial mark in resin stencil and stencil formed thereby | Eigo Sarashina, Yousuke Nagasawa, Ken Takahashi | 1999-09-07 |
| 5911016 | Polarization scrambler and integrated optical circuit making use thereof | — | 1999-06-08 |
| 5877879 | Wavelength division multiplexing optical transmission system and optical transmitting device used in the transmission system | — | 1999-03-02 |
| 5841557 | Method and apparatus for scrambling the polarization of signal lights forming a wavelength division multiplexed signal light | Kazue Otsuka, Hiroshi Onaka, Takafumi Terahara | 1998-11-24 |
| 5777770 | Optical phase conjugator and optical reception apparatus and optical transmission apparatus for use with optical communication system employing the optical phase conjugator | — | 1998-07-07 |
| 5730051 | Apparatus and method for centering a printing screen over an object | Ken Takahashi, Naoichi Chikahisa, Tetsuya Tanaka | 1998-03-24 |
| 5729372 | Optical transmission method and apparatus and optical amplification method and apparatus for optical communication system | Takafumi Terahara, Terumi Chikama, Masuo Suyama | 1998-03-17 |
| 5598986 | Component supply apparatus | Takashi Ando, Shuuichi Kubota, Kazuhiko Narikiyo | 1997-02-04 |
| 5570812 | Component supply apparatus | Takashi Ando, Shuuichi Kubota, Yoshihisa Tachiyama, Kazuhiko Narikiyo | 1996-11-05 |
| 5568310 | Optical transmission line relayed with multistage optical amplifiers | — | 1996-10-22 |
| 5568305 | Heterodyne receiver provided with a frequency discriminator for coherent lightwave communications | Terumi Chikama, Hiroshi Onaka | 1996-10-22 |
| 5539566 | Optical transmission method and apparatus and optical amplification method and apparatus for optical communication system | Takafumi Terahara, Terumi Chikama, Masuo Suyama | 1996-07-23 |
| 5510922 | Optical frequency stabilizer and optical frequency selector | — | 1996-04-23 |
| 5493969 | Screen printing apparatus and screen printing method | Ken Takahashi, Naoichi Chikahisa, Tetsuya Tanaka | 1996-02-27 |
| 5479854 | Automatic squeegee angle and pressure adjusting means | Naoichi Chikahisa, Ken Takahashi, Takashi Sasaki | 1996-01-02 |
| 5481390 | Optical amplifier repeater | — | 1996-01-02 |
| 5471336 | Cold start control system and method for use in coherent lightwave communications system | Hiroshi Onaka, Hideyuki Miyata | 1995-11-28 |
| 5422754 | Optical transmission line relayed with multistage optical amplifiers | — | 1995-06-06 |
| 5253097 | Demodulator and a polarization diversity receiver for coherent optical communication provided with the demodulator | Terumi Chikama, Shigeki Watanabe, Tetsuya Kiyonaga, Hiroshi Nakamoto, George Ishikawa | 1993-10-12 |