Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7673334 | Communication system and security assurance device | Keisuke Takemori, Yutaka Miyake, Toshiaki Tanaka, Takamasa Isohara | 2010-03-02 |
| 7139483 | Optical communication system | Toru Murase, Masayuki Shigematsu, Katsuhiro Kamakura | 2006-11-21 |
| 5535149 | Duplex adaptive digital filter and method of operation | Shinsaku Mori, Kiyoshi Takahashi | 1996-07-09 |