Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882490 | Light beam scanning apparatus having two detectors whose signal ratio indicates main scanning position | Yoshimi Takasaki, Ryoichi Yoshimura | 1989-11-21 |
| 4865521 | Vacuum breaking device for ejector pump | Yoji Ise | 1989-09-12 |
| 4861232 | Vacuum generating device | Yoji Ise | 1989-08-29 |
| 4854998 | Method for manufacturing an analytical element | — | 1989-08-08 |
| 4848392 | Solenoid on-off valve | Yoji Ise | 1989-07-18 |
| 4822445 | Apparatus for processing double face adhesive tape | — | 1989-04-18 |
| 4803461 | R-2R type D/A converter circuit | Toshimasa Kawaai | 1989-02-07 |
| 4798639 | Method of laminating plastic resin sheets | — | 1989-01-17 |