Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4726417 | Adamite compound roll | — | 1988-02-23 |
| 4721153 | High-chromium compound roll | Michio Haga, Toshio Okitsu | 1988-01-26 |
| 4650932 | Key telephone system | Isaku Komuro | 1987-03-17 |
| 4605825 | Function key assignments in a key telephone system | Isaku Komuro, Shinichi Shibata | 1986-08-12 |
| 4567326 | Telephone apparatus for selective operation in a normal and repertory dial mode | Yasuji Sato, Takao Yamamoto, Yasunobu Nakayama | 1986-01-28 |
| 4559417 | Method of setting operating data in a key telephone system | Isaku Komuro, Hideyasu Mori | 1985-12-17 |
| 4491693 | Key telephone system and method of setting operating data in the key telephone system | Hideyasu Mori, Yasuji Sato | 1985-01-01 |
| 4414732 | Machine tool with automatic tool change function | Tamaki Tomita, Kunimichi Nakashima | 1983-11-15 |
| 4189963 | Index apparatus for rotary table | Kyosuke Haga, Kengo Yoshioka | 1980-02-26 |
| 4184054 | Key telephone system | Shin-ichi Shibata, Yasuji Sato, Takao Yamamoto | 1980-01-15 |