Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5197118 | Control system for a fine pattern printing apparatus | Ryuichi Sato, Bunei Hamasaki, Naoki Ayata | 1993-03-23 |
| 5067625 | Device for opening and closing lid | — | 1991-11-26 |
| 4830151 | Damper comprising rotor shaft and gear sleeve having equal external diameter portions with clutch spring wound thereabout | — | 1989-05-16 |
| 4701229 | Method of high frequency welding | Masaru Arakawa | 1987-10-20 |
| 4691811 | Rotary damper | Masaru Arakawa | 1987-09-08 |
| 4516138 | Time-clock recording and computation apparatus with optional rest processing function | Hiroshi Iwasawa, Shinichi Mama | 1985-05-07 |
| 4423314 | Time recorder | Hiroshi Kato | 1983-12-27 |
| 4423315 | Time recorder | Hiroshi Kato | 1983-12-27 |