Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12183974 | Slot antenna | Kenji Kawai, Tetsuro OKANO, Kakeru Yamashita | 2024-12-31 |
| 10523248 | Reception device, reception method, and wireless apparatus | Takeshi Chinda, Naoki Kushima, Takuma Sawaya | 2019-12-31 |
| 8994598 | Circularly polarized wave reception antenna | Yoshio Umezawa | 2015-03-31 |
| 7623080 | Loop antenna attached to rear window of vehicle | Yoshio Umezawa, Katsuhiro Tsuruta, Akihiro Fujiwara | 2009-11-24 |
| 7408524 | Loop antenna | — | 2008-08-05 |
| 7286098 | Circular polarization antenna and composite antenna including this antenna | Yoshio Umezawa, Kazuo Takayama, Koji Nagao, Katsuhiro Tsuruta | 2007-10-23 |
| 7277684 | Antenna amplifier and shared antenna amplifier | Naoki Kushima, Kazuo Takayama, Tetsuharu Imoto, Hirokazu Matsunaga, Nobuyoshi Tateishi | 2007-10-02 |
| 6903697 | Vehicle antenna and diversity receiving apparatus | — | 2005-06-07 |