Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10270322 | Laminate carbon brush for fuel pump motor | Yuya Nishino | 2019-04-23 |
| 9337599 | Carbon brush for fuel pump and method for manufacturing same | Shinya Nakagawa, Kiyotoshi Oi, Youichi Murakami, Takashi Fukutsuka, Ryouichi Honbo | 2016-05-10 |
| 9024504 | Carbon commutator and a method for production thereof | Shinya Nakagawa, Yuya Nishino, Kenzo Kiyose, Takashi Fukutsuka | 2015-05-05 |
| 7904085 | Mobile device and radio interface arrangement method | Tsuneo Nakata, Akira Arutaki | 2011-03-08 |
| 7586230 | Brush, commutator, and commutator device | Hirotake Hamamatsu, Youichi Murakami, Ryoichi Honbo, Kenzo Kiyose, Mitsuo Ikeda +2 more | 2009-09-08 |
| 7280470 | Ring network for sharing protection resource by working communication paths | Tatsuya Shiragaki, Naoya Henmi, Hitoshi Takeshita, Hirofumi Shimomura | 2007-10-09 |
| 6657952 | Ring network for sharing protection resource by working communication paths | Tatsuya Shiragaki, Naoya Henmi, Hitoshi Takeshita, Hirofumi Shimomura | 2003-12-02 |
| 6643042 | Optical communication network node | Naoya Henmi | 2003-11-04 |
| 6075630 | Electro/optical combined type network node control system | — | 2000-06-13 |
| 6070186 | Video server and video-on-demand system capable of effectively transmitting a special video program | — | 2000-05-30 |
| 6041037 | ATM virtual path switching node | Hiromitsu Watanabe | 2000-03-21 |
| 5907551 | ATM switching system with distribution networks for varying traffic patterns | Kazuo Takagi | 1999-05-25 |
| 5557317 | Video-on-demand system with program relocation center | Sho-ichiro Nakai, Makiko Yoshida | 1996-09-17 |
| 5521732 | Optical wavelength selection control system in optical networks | — | 1996-05-28 |
| 5506714 | Optical ATM self-routing switching system with reduced routing header bits | — | 1996-04-09 |
| 5432627 | Optical ATM self-routing switching system with reduced routing header bits | — | 1995-07-11 |
| 5404240 | Optical switching system for optical wavelength-division and time-division multiplexed signals | Takahiro Numai | 1995-04-04 |
| 5341234 | Self-routing network using optical gate array driven by control voltages coincidental with packet header pulses | Shuji Suzuki | 1994-08-23 |
| 5208691 | Wavelength-time-space division switching system | — | 1993-05-04 |
| 5194977 | Wavelength division switching system with reduced optical components using optical switches | — | 1993-03-16 |
| 5170273 | Wavelength-division switching system for optical frequency-shift keying signals | — | 1992-12-08 |
| 5005166 | Time and wavelength division switching system | Syuji Suzuki | 1991-04-02 |
| 4841519 | Apparatus for discriminating an optical signal from others and an apparatus for tuning an optical wavelength filter used in the same | — | 1989-06-20 |