Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9618613 | Radio communication apparatus, radio communication method, and radio communication system | Hiroyuki Murakami, Satoru Ujiie, Shinya Kobayashi | 2017-04-11 |
| 7855692 | Method of aligning antenna azimuth | Shinya Koboyashi, Hiroyuki Yasuda, Koji Moriya | 2010-12-21 |
| 7583239 | Wireless communications device | Yoichi Okubo, Hiroyuki Yasuda | 2009-09-01 |
| 6980806 | Radio system | Mitsuru Muramoto, Yuji Aoyagi | 2005-12-27 |
| 6961580 | Wireless communication system and method of maximizing the use of communication signal resource | Mitsuru Muramoto | 2005-11-01 |
| 6538608 | Polarization diversity antenna system for cellular telephone | Mitsuru Muramoto, Naoki Onishi, Hirotaka SAITO | 2003-03-25 |
| 6342864 | Slot array antenna with cavities | Mitsuru Muramoto, Kiyohiko Itoh, Manabu Yamamoto | 2002-01-29 |
| 6326924 | Polarization diversity antenna system for cellular telephone | Mitsuru Muramoto, Naoki Onishi, Hirotaka SAITO | 2001-12-04 |
| 5245300 | Intermediate frequency filter having a ceramic filter | Mikio Takano | 1993-09-14 |
| 5233318 | CM type directional coupler | Mikio Takano | 1993-08-03 |
| 4983938 | Band-stop filter | Sadao Ogawa | 1991-01-08 |
| 4910481 | Branching filter | Sadao Ogawa, Mikio Takano, Kennzo Urabe | 1990-03-20 |
| 4890079 | Di-electric bandpass filter | — | 1989-12-26 |