Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5311518 | ISDN interface circuit and system using the same | Kenji Takato, Takashi Sato, Hiroyuki Ujiie, Seiji Miyoshi | 1994-05-10 |
| 4995111 | Ring trip circuit for subscriber telephone | Toshiro Tojo, Kenji Takato, Kazumi Kinoshita, Yuzo Yamamoto, Shin Ito | 1991-02-19 |
| 4982422 | Terminating circuit in a battery feed circuit of an electronic exchange system | Shin Itoh, Kenji Takato, Yuzo Yamamoto | 1991-01-01 |
| 4827505 | Subscriber line interface circuit | Kenji Takato, Toshiro Tojo, Mitsutoshi Ayano, Kiyoshi Shibuya | 1989-05-02 |