Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8798694 | Communication device | Mitsuhiro Nishizono, Junichi Kondo | 2014-08-05 |
| 8611958 | Portable wireless device | Tadashi Koyama, Kunihiko Watanabe, Shin Takahashi, Kenji Waku | 2013-12-17 |
| 8537055 | Portable electronic device and magnetic antenna circuit | Kenji Waku, Tadashi Koyama, Masayuki Saito, Yasuhiro Katayama, Shinobu Kato | 2013-09-17 |
| 8489109 | Portable wireless device | Kenji Waku, Tadashi Koyama, Kunihiko Watanabe, Mitsuhiro Nishizono, Takeshi Iwanaga +1 more | 2013-07-16 |
| 8200303 | Portable terminal antenna arrangement to suppress deterioration of antenna sensitivity | — | 2012-06-12 |
| 6057732 | Transmission power control circuit and method for CDMA system | — | 2000-05-02 |
| 4506868 | Shock absorber for vehicular couplers | Shoichi Shiroyama, Kazuo Yamashita | 1985-03-26 |