Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8619351 | Optical phase shifter and demodulator | Takuma Ban | 2013-12-31 |
| 8378289 | Optical receiver module and manufacturing method with a shifted and angled light receiving element | Michihide Sasada | 2013-02-19 |
| 8214606 | Storage system and control method thereof | Teiko Kezuka, Yuko Matsui, Kenji Muraoka | 2012-07-03 |
| 7953940 | Storage system and control method thereof | Teiko Kezuka, Yuko Matsui, Kenji Muraoka | 2011-05-31 |
| 7765602 | Storage on-demand system, and method for processing data in the same | Tetsuhiko Fujii, Hideo Tabuchi | 2010-07-27 |
| 7626825 | Optical transmitter module | Takeshi Yamashita, Hideyuki Kuwano, Osamu Kagaya, Hiroyuki Arima | 2009-12-01 |
| 7397981 | Apparatus and method of compensating for wavelength dispersion of optical transmission line | Shinya Inagaki, Kazuo Yamane, Takashi Tsuda | 2008-07-08 |
| 6966001 | Computing system and data decryption method and computer system with remote copy facility | Kiyohiro Obara, Masafumi Nozawa, Takashi Oeda, Noboru Morishita | 2005-11-15 |
| 6744958 | Apparatus and method of compensating for wavelength dispersion of optical transmission line | Shinya Inagaki, Kazuo Yamane, Takashi Tsuda | 2004-06-01 |
| 6738182 | Optical fiber amplifier | Shinya Inagaki, Norifumi Shukunami, Manabu Watanabe, Keiko Sasaki, Tomoaki Takeyama +3 more | 2004-05-18 |
| 6473867 | Parity storage unit, in a disk array system, for generating updated parity data from received data records | Akira Yamamoto, Toshihiko Tamiya, Akira Kurano, Hirofumi Inomata | 2002-10-29 |
| 6209107 | Parity storage unit, in a disk array system, for generating updated parity data from received data records | Akira Yamamoto, Toshihiko Tamiya, Akira Kurano, Hirofumi Inomata | 2001-03-27 |
| 6032263 | Parity storage unit, in a disk array system, for generating updated parity data from received data records | Akira Yamamoto, Toshihiko Tamiya, Akira Kurano, Hirofumi Inomata | 2000-02-29 |
| 5905995 | Disk array subsystem with self-reallocation of logical volumes for reduction of I/O processing loads | Hideo Tabuchi, Akinobu Shimada | 1999-05-18 |
| 5826002 | Parity storage unit, in a disk array system for generating updated parity data from received data records | Akira Yamamoto, Toshihiko Tamiya, Akira Kurano, Hirofumi Inomata | 1998-10-20 |
| 5764400 | Optical modulator | Tomoyuki Itou, Toshihiro Otani, Yoshinobu Kubota, Yasuhiro Omori | 1998-06-09 |
| 5734812 | Storage unit with parity generation function and storage systems using storage unit with parity generation analyzation | Akira Yamamoto, Toshihiko Tamiya, Akira Kurano, Hirofumi Inomata | 1998-03-31 |
| 5537244 | Light amplifier | Nobuhiro Fukushima | 1996-07-16 |
| 5457791 | Storage system and method of control | Yoshiko Matsumoto, Hisaharu Takeuchi, Yoshihiro Uchiyama, Mamoru Tohchi, Hisayoshi Kawabata +1 more | 1995-10-10 |
| 5315451 | Rotating storage track format emulation | Masahiro Nakayama, Hisaharu Takeuchi, Mamoru Tohchi, Akira Kurano | 1994-05-24 |
| 5283842 | Operating point trimming method for optical waveguide modulator and switch | Hironao Hakogi | 1994-02-01 |
| 5223975 | Polarization beam coupler including a splitter for producing an output monitor beam | Norihisa Naganuma, Kenichi Abe | 1993-06-29 |
| 5125053 | Optical coupler ultizing prisms | Kenichi Abe, Norihisa Naganuma | 1992-06-23 |
| 5119488 | Input/output system implementing several access paths for rerouting data in the event one path fails | Hisaharu Takeuchi, Akira Kurano | 1992-06-02 |
| 5015055 | Polarization coupler | Norihisa Naganuma, Kenichi Abe | 1991-05-14 |