Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7305010 | Multicast communication system | Tsunemasa Hayashi, Takako Sato, Daisuke Ando | 2007-12-04 |
| 6643463 | Optical wavelength division multiplexing transmission network system using transmitting/receiving apparatuses having 2-input and 2-output optical path switching elements | Senichi Suzuki, Masao Kawachi, Kennosuke Fukami, Yuji Akatsu, Kazutosi Kato +2 more | 2003-11-04 |
| 4679004 | Frequency synthesizer of a phase-locked type with a sampling circuit | Tomoyoshi Ishikawa, Hiroyuki Tanaka, Tamio Okui | 1987-07-07 |