Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654681 | Laminated dielectric resonator and dielectric filter | Toshio Ishizaki | 1997-08-05 |
| 5644275 | Laminated dielectric resonator and dielectric filter | Toshio Ishizaki | 1997-07-01 |
| 5594394 | Antenna diversity switching device with switching circuits between the receiver terminal and each antenna | Atsushi Sasaki, Toshio Ishizaki, Hiroshi Takahashi, Tooru Sakuragawa, Ikuo Ohta +4 more | 1997-01-14 |