Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12237555 | Waveguide, method of manufacturing waveguide and antenna | Takuro Sato, Kazuhiko Tamesue, Tetsuya Kawanishi | 2025-02-25 |
| 7872609 | Circular waveguide antenna and circular waveguide array antenna | Hok Huor Ou, Hiroyo Ogawa, Kiyoshi Hamaguchi, Yozo Shoji | 2011-01-18 |
| 7612732 | Antenna with stripline splitter circuit | Kei Takeishi | 2009-11-03 |
| 6206985 | A1 alloy films and melting A1 alloy sputtering targets for depositing A1 alloy films | Takashi Onishi, Kazuo Yoshikawa, Seigou Yamamoto | 2001-03-27 |
| 6037615 | Metal semiconductor FET having doped A1GaAs layer between channel layer and A1GaAs buffer layer | Isamu Matsuyama | 2000-03-14 |
| 5976641 | A1 alloy films and melting A1 alloy sputtering targets for depositing A1 alloy films | Takashi Onishi, Kazuo Yoshikawa, Seigou Yamamoto | 1999-11-02 |
| 5949140 | Microwave semiconductor device with via holes and associated structure | Tomoji Hamada | 1999-09-07 |
| 5500301 | A1 alloy films and melting A1 alloy sputtering targets for depositing A1 alloy films | Takashi Onishi, Kazuo Yoshikawa, Seigou Yamamoto | 1996-03-19 |
| 5468305 | Method of lowering permeability of difficult-to-work Co alloy | Hiroyuki Uchida, Kazuo Yoshikawa | 1995-11-21 |