Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882026 | Dielectric block plating apparatus | Tetsuji Takino | 1989-11-21 |
| 4877493 | Dielectric block plating process | Tetsuji Takino | 1989-10-31 |
| 4855693 | Dielectric filter and a method of manufacture thereof | Hisao Matsukura, Hiroyuki Horii | 1989-08-08 |
| 4808951 | Dielectric filter | Hiroyuki Horii, Tetuji Takino, Takanori Yamasaki, Yoshimitu Sakurai, Hisao Matsukura +1 more | 1989-02-28 |