Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12355301 | Stator for rotating electrical machine, rotating electrical machine, method for manufacturing stator for rotating electrical machine, and method for manufacturing rotating electrical machine | Mamoru Kimura, Kyohei Aimuta, Toshio Abe, Motoki Ohta | 2025-07-08 |
| 7292519 | Optical head with lasers and mirrors in a recess formed in a substrate | Kimio Tatsuno, Masahide Tokuda, Toshiaki Tanaka, Takeshi Shimano, Shigeru Nakamura +2 more | 2007-11-06 |
| 7289702 | Optical waveguide apparatus | Makoto Takahashi, Tatemi Ido, Nobuo Miyadera | 2007-10-30 |
| 7272314 | Optical crossconnect apparatus and optical transmission system | Yasuyuki Fukashiro, Yukio Hayashi, Shigeki Kitajima, Tatsuo Kanetake, Masahiro Takatori +1 more | 2007-09-18 |
| 6965552 | Mounting method for optical device and optical head equipment | Masahide Tokuda, Kimio Tatsuno, Takeshi Shimano, Shigeharu Kimura | 2005-11-15 |
| 6868210 | Optical waveguide and their application of the optical communication system | Makoto Takahashi, Tatemi Ido, Tomoaki Shibata | 2005-03-15 |
| 6813445 | Optical crossconnect apparatus and optical transmission system | Yasuyuki Fukashiro, Yukio Hayashi, Shigeki Kitajima, Tatsuo Kanetake, Masahiro Takatori +1 more | 2004-11-02 |
| 6782018 | Diode laser module and application equipment | Kimio Tatsuno, Masahide Tokuda, Shigeharu Kimura, Takeshi Shimano | 2004-08-24 |
| 6488416 | Optical module, board mounted optical module, and assembly method of optical module | Masato Shishikura, Koji Yoshida, Kimio Tatsuno | 2002-12-03 |
| 6362905 | Optical crossconnect apparatus and optical transmission system | Yasuyuki Fukashiro, Yukio Hayashi, Shigeki Kitajima, Tatsuo Kanetake, Masahiro Takatori +1 more | 2002-03-26 |
| 6317230 | Optical cross-connect system and optical transmission system | Shigeki Kitajima, Shoichi Hanatani, Tatsuo Kanetake | 2001-11-13 |
| 6111998 | Semiconductor optical device, fiber optical amplifier and optical transmission system | Tatemi Ido, Hiroyuki Gomyo | 2000-08-29 |
| 5763897 | Non-uniform thickness or bandgap superlattice betweeen cladding layer and multi-quantum well structure of pin optical waveguide | Tatemi Ido | 1998-06-09 |
| 5742423 | Semiconductor optical modulator | Tatemi Ido | 1998-04-21 |
| 5710847 | Semiconductor optical functional device | Hideaki Takano, Tatsuo Kanetake, Masaki Ohira, Makoto Suzuki, Hiroaki Inoue | 1998-01-20 |
| 5574289 | Semiconductor optical integrated device and light receiver using said device | Masahiro Aoki, Shinji Sakano, Makoto Suzuki, Makoto Takahashi, Kazuhisa Uomi +2 more | 1996-11-12 |
| 5570439 | Optical waveguide device and optical transmission system | Tatemi Ido | 1996-10-29 |
| 5515196 | Optical intensity and phase modulators in an optical transmitter apparatus | Shigeki Kitajima, Katsuhiko Kuboki, Shinya Sasaki | 1996-05-07 |
| 5422967 | Self-routing optical switch and optical switch array | Hiroaki Inoue, Toshio Kirihara, Shinji Nishimura, Mari Ogawa, Koji Ishida | 1995-06-06 |
| 5339370 | Optical modulator and optical communication system utilizing the same | Hiroaki Inoue | 1994-08-16 |
| 5140453 | Optical receiving method utilizing polarization diversity and apparatus for carrying out the same | Hideaki Tsushima, Katsuyuki Imoto, Akihiko Takase, Yoshitaka Takasaki, Minoru Maeda | 1992-08-18 |
| 4953934 | Waveguide type light merging and branching device | Katsuyuki Imoto, Masaru Miyazaki, Naoyuki Matsuoka, Hisato Uetsuka | 1990-09-04 |
| 4909584 | Optical multi/demultiplexer and optical module using the same | Katsuyuki Imoto, Hideaki Tsushima | 1990-03-20 |
| 4904037 | Waveguide type optical device with thermal compensation layers | Katsuyuki Imoto, Yasuo Hira | 1990-02-27 |
| 4822128 | Optical fiber star coupler and method of manufacturing the same | Katsuyuki Imoto | 1989-04-18 |