Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8346034 | Optical selector switch and signal-processing apparatus | Ken Hayakawa, Masaaki Hattori, Naoki Kaneko, Tetsujiro Kondo, Hidehiko Sekizawa +4 more | 2013-01-01 |
| 8335408 | Signal processing apparatus | Toshiyuki Sekiya, Ken Hayakawa, Masaaki Hattori, Naoki Kaneko, Tetsujiro Kondo | 2012-12-18 |
| 7894702 | Method and apparatus of obtaining directivity | Hidehiko Ogasawara, Nozomu Ozaki, Seiji Wada, Toshiyuki Sekiya, Ken Hayakawa +3 more | 2011-02-22 |
| 7889957 | Optical selector switch and signal-processing apparatus | Hidehiko Ogasawara, Nozomu Ozaki, Seiji Wada, Toshiyuki Sekiya, Ken Hayakawa +4 more | 2011-02-15 |
| 7657630 | Contents providing device, contents providing method, receiving device, receiving method, communication system, and communication method | Yoshihisa Gonno, Fumihiko Nishio, Yasuaki Yamagishi | 2010-02-02 |
| 7627881 | Transmitting apparatus and receiving apparatus | Yoshihisa Gonno, Fumihiko Nishio, Kazuhiko Takabayashi, Yasuaki Yamagishi | 2009-12-01 |
| 7363307 | Apparatus and method for communicating hierarchical structures of directories | Yasuaki Yamagishi, Yoshihisa Gonno, Fumihiko Nishio, Kazuhiko Takabayashi | 2008-04-22 |
| 7328402 | Change detection in a hierarchical directory using messages having a filtering mask | Yasuaki Yamagishi, Yoshihisa Gonno, Fumihiko Nishio, Kazuhiko Takabayashi | 2008-02-05 |
| 7093000 | Transmitting apparatus, transmitting method, receiving apparatus, receiving method, transmitting and receiving system, and transmitting and receiving method | Yasuaki Yamagishi, Kazuhiko Takabayashi, Yoshihisa Gonno, Fumihiko Nishio | 2006-08-15 |
| 7051064 | Apparatus and method for maintaining hierarchical directory structure and transmitting changes in same | Yasuaki Yamagishi, Yoshihisa Gonno, Fumihiko Nishio, Kazuhiko Takabayashi | 2006-05-23 |
| 6898801 | Transmission apparatus and method, receiving apparatus and method, and distribution medium | Yoshihisa Gonno, Fumihiko Nishio, Yasuaki Yamagishi | 2005-05-24 |
| 6810423 | Communication system | Yoshihisa Gonno, Fumihiko Nishio, Yasuaki Yamagishi | 2004-10-26 |