Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6742977 | Substrate processing device, substrate conveying device, and substrate processing method | Satohiro Okayama, Motoichi Kanazawa, Takeshige Ishida, Tomohiko Takeda, Yukio Akita +4 more | 2004-06-01 |
| 5250942 | Equipment and method for management of terminal identification number in communication system | — | 1993-10-05 |
| 4932043 | Apparatus for controlling key telephone station set in key telephone system | Yasuji Sato | 1990-06-05 |
| 4756021 | Telephone set | — | 1988-07-05 |
| 4645882 | Latching relay drive circuit for use in telephone sets | Yasuji Sato | 1987-02-24 |
| 4636588 | Electric source circuit for telephone sets | Yasuji Sato | 1987-01-13 |
| 4567326 | Telephone apparatus for selective operation in a normal and repertory dial mode | Yasuji Sato, Takao Yamamoto, Yoshikazu Sano | 1986-01-28 |
| 4564724 | Terminal interface connecting terminal unit having central office line interface to key telephone system | Yasuji Sato, Shinichi Shibata | 1986-01-14 |
| 4532378 | Telephone apparatus capable of inputting character data | Takeshi Kunii, Yasuji Sato | 1985-07-30 |
| 4511764 | Telephonic display device | Yasuji Sato, Takeshi Kunii | 1985-04-16 |