Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6867660 | Line transition device between dielectric waveguide and waveguide, and oscillator, and transmitter using the same | Nobumasa Kitamori, Toru Tanizaki, Hideaki Yamada, Sadao Yamashita | 2005-03-15 |
| 6737934 | Directional Coupler, antenna device, and transmitting-receiving device | Hideaki Yamada, Toru Tanizaki | 2004-05-18 |
| 6489855 | Line transition device between dielectric waveguide and waveguide, and oscillator, and transmitter using the same | Nobumasa Kitamori, Toru Tanizaki, Hideaki Yamada, Sadao Yamashita | 2002-12-03 |
| 6441699 | Directional coupler, antenna device, and transmitting-receiving device | Hideaki Yamada, Toru Tanizaki | 2002-08-27 |
| 6433741 | Directional coupler, antenna device, and transmitting-receiving device | Toru Tanizaki, Ikuo Takakuwa, Tomohiro Nagai | 2002-08-13 |
| 6342863 | Antenna apparatus and antenna and tranceiver using the same | Nobumasa Kitamori | 2002-01-29 |
| 6285266 | Directional coupler having shiftable parallel dielectric transmission lines | Hideaki Yamada, Toru Tanizaki | 2001-09-04 |
| 6147658 | Array antenna device and radio equipment | Ikuo Takakuwa | 2000-11-14 |
| 5900847 | Dielectric lens apparatus | Yohei Ishikawa, Hideaki Yamada, Yasuaki Saitoh | 1999-05-04 |