Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4501999 | System for stopping spindle at commanded position | Yoshiki Fujioka, Naoto Ota | 1985-02-26 |
| 4450393 | Spindle orientation control apparatus | Yoshiki Fujioka, Naoto Ota | 1984-05-22 |
| 4439703 | Direct current motor | Shigeaki Oyama | 1984-03-27 |
| 4403181 | Control system for stopping spindle at predetermined rotational position | Yoshiki Fujioka, Naoto Ota | 1983-09-06 |
| 4403179 | Control system for stopping spindle at predetermined rotational position | Yoshiki Fujioka, Naoto Ota | 1983-09-06 |
| 4398138 | Spindle orientation control method and apparatus | Yoshiki Fujioka, Naoto Ota | 1983-08-09 |
| 4386305 | Drive control system for motors | Yoshiki Fujioka | 1983-05-31 |
| 4379987 | Spindle rotation control system | Yoshiki Fujioka | 1983-04-12 |
| 4374350 | Control system for stopping spindle at predetermined rotational position | Yoshiki Fujioka, Naoto Ota | 1983-02-15 |
| 4374337 | Direct current motor having E-shaped interpoles | Shigeaki Oyama, Tatsuo Koyama | 1983-02-15 |
| 4364005 | Brushless tachometer generator | Yoichi Amemiya, Yoshiki Fujioka, Noboru Iwamatsu | 1982-12-14 |
| 4353018 | Control system for synchronized operation of machine tool motors | Yoshiki Fujioka | 1982-10-05 |
| 4347470 | Spindle orientation control apparatus | Yoshiki Fujioka, Naoto Ota | 1982-08-31 |
| 4347471 | Machine tool drive motor control system | Yoshiki Fujioka, Naoto Ota | 1982-08-31 |
| 4345192 | Control system for stopping spindle at predetermined rotational position | Yoshiki Fujioka, Naoto Ota | 1982-08-17 |
| 4342950 | Spindle rotation control system | Yoshiki Fujioka, Naoto Ota | 1982-08-03 |
| 4338535 | Direct current motor having E-shaped interpoles | Shigeaki Oyama, Yukio Katsuzawa | 1982-07-06 |
| 4331910 | Positioning control system | Hidetsugu Komiya, Yoichi Amemiya, Yo Ikebe, Jun Ikebe | 1982-05-25 |
| 4330832 | Cutter feed rate control system | Shigeki Kawada, Yoshiki Fujioka | 1982-05-18 |
| 4307312 | Direct current motor having E-shaped interpoles | Shigeaki Oyama | 1981-12-22 |
| 4220882 | Direct current motor | Shigeaki Oyama | 1980-09-02 |
| 4217513 | Direct current motor | Shigeaki Oyama | 1980-08-12 |
| 4181875 | Drive circuit for a DC motor | Shigeki Kawada, Shigeaki Oyama | 1980-01-01 |