Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5798878 | Shape control apparatus for reflecting mirrors | Kouki Asari, Eiichi Sakai | 1998-08-25 |
| 4740953 | Time division speech path switch | Jun Matsumoto | 1988-04-26 |
| 4703422 | Memory hierarchy control method with replacement based on request frequency | Toshiyuki Kinoshita, Toshiaki Arai, Takao Sato, Takashige Kubo, Yasufumi Yoshizawa | 1987-10-27 |
| 4421955 | Distributed switching system | Jun Matsumoto, Masanobu Fujioka | 1983-12-20 |
| 4392224 | Speech path switching system in time-divisional electronic telephone switching system | Jun Matsumoto, Masanobu Fujioka | 1983-07-05 |
| 4309572 | Call processing system with an operator assistance in a telephone switching system | Tatsuo Maruyama, Jun Matsumoto, Yoshikazu Ikeda | 1982-01-05 |