Issued Patents 1989
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888482 | Atmospheric pressure ionization mass spectrometer | — | 1989-12-19 |
| 4885641 | Image communication apparatus | — | 1989-12-05 |
| 4882253 | Organic laminated photosensitive material of positive charging type | Masashi Tanaka, Mitsuji Tsujita, Keizo Kimoto, Hirotsugu Nishikawa, Mika Kawaguchi | 1989-11-21 |
| 4874944 | Mass spectrometer | — | 1989-10-17 |
| 4873164 | Electrophotographic photoreceptor comprising a charge transport medium and a bis-azo compound containing oxygen | Hitoshi Ono | 1989-10-10 |
| 4854194 | Starting speed stage selector in automatic transmission control system | Kiyoshi Kaneko | 1989-08-08 |
| 4841029 | Diazo colors and dyeing method using the same | Toshio Hihara | 1989-06-20 |
| 4840261 | Automatic transmission having centrifugally operable drain valve in hydraulically operated clutch actuator | Toshikazu Oshidari, Noboru Hattori | 1989-06-20 |
| 4814890 | Image communicating system | — | 1989-03-21 |