Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885784 | System for binary encoding a picture | Michiaki Miyagawa, Koichi Oki | 1989-12-05 |
| 4855693 | Dielectric filter and a method of manufacture thereof | Hisao Matsukura, Osamu Yamato | 1989-08-08 |
| 4808951 | Dielectric filter | Osamu Yamato, Tetuji Takino, Takanori Yamasaki, Yoshimitu Sakurai, Hisao Matsukura +1 more | 1989-02-28 |