Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6304156 | Laminated dielectric antenna duplexer and a dielectric filter | Toshio Ishizaki, Atsushi Sasaki, Yuki Satoh, Hiroshi Kushitani, Hideaki Nakakubo +2 more | 2001-10-16 |
| 6020799 | Laminated dielectric antenna duplexer and a dielectric filter | Toshio Ishizaki, Atsushi Sasaki, Yuki Satoh, Hiroshi Kushitani, Hideaki Nakakubo +2 more | 2000-02-01 |
| 5907265 | High-frequency circuit board trace crossing and electronic component therefor | Toru Sakuragawa, Naoki Yuda, Ikuo Ota, Hideki Nanba | 1999-05-25 |
| 5719539 | Dielectric filter with multiple resonators | Toshio Ishizaki, Atsushi Sasaki, Yuki Satoh, Hiroshi Kushitani, Hideaki Nakakubo +2 more | 1998-02-17 |
| 5442812 | Antenna switching apparatus for selectively connecting antenna to transmitter or receiver | Toshio Ishizaki, Hideaki Nakakubo, Hiroaki Kosugi, Shogo Iizuka | 1995-08-15 |
| 5166649 | Dielectric filters with a single through-hole | Takashi Fujino, Toshio Ishizaki | 1992-11-24 |
| 5162761 | Microwave stripline resonator including a dielectric substrate having a depression | Masaki Kita | 1992-11-10 |
| 5109207 | Coaxial dielectric resonator having a groove therein and method of producing such coaxial dielectric resonator | Masaki Kita | 1992-04-28 |
| 4375041 | Terminal substrate for a quartz vibrating device | Takashi Nagata | 1983-02-22 |