Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887089 | Planar antenna for vehicles | Yoshihisa Shibata | 1989-12-12 |
| 4851872 | Developing device with developer sleeve facilitating developer supply adjustment by bristle height regulating member | Hiroshi Murasaki, Akihito Ikegawa, Kouichi Etou | 1989-07-25 |
| 4845506 | Antenna system | Yoshihisa Shibata | 1989-07-04 |
| 4819027 | Developing apparatus | Hiroshi Murasaki, Akihito Ikegawa, Kouichi Etou | 1989-04-04 |
| 4816838 | Portable receiving antenna system | Yoshihisa Shibata, Takashi Sakurai | 1989-03-28 |
| 4809034 | Developing device | Hiroshi Murasaki, Akihito Ikegawa, Kouichi Etou | 1989-02-28 |