Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859824 | Electrospark machine system, assembly for use with system, device for mounting electrospark machining electrode, and method of shaping a workpiece | Shiroh Ukaji, Hisao Kimura, Toshio Kaneda | 1989-08-22 |
| 4837629 | Image pickup method using a CCD-type solid state image pickup device with charge dissipation | Yasuyuki Shiromizu | 1989-06-06 |