Issued Patents All Time
Showing 26–50 of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7558258 | Wireless communication method and wireless communication apparatus | Hiroshi Doi, Taisuke Matsumoto | 2009-07-07 |
| 7457442 | Authentication system by fingerprint | Yoichi Seto, Takuo Ishizuka | 2008-11-25 |
| 7447339 | Unique code generating apparatus, method, program and recording medium | Kenta Takahashi, Kazuo Takaragi, Masakatsu Nishigaki, Yoichi Shibata | 2008-11-04 |
| 7430199 | Pulse-modulated wireless communication apparatus | Suguru Fujita, Kazuaki Takahashi | 2008-09-30 |
| 7366235 | UWB demodulating apparatus | Kazuaki Takahashi, Suguru Fujita | 2008-04-29 |
| 7315728 | Polarized wave measuring apparatus, and antenna characteristic measuring apparatus and radio wave measuring apparatus using the same | Yoichi Nakagawa, Kentaro Miyano, Yoshio Koyanagi | 2008-01-01 |
| 7212164 | Radio terminal device antenna and radio terminal device | Kentaro Miyano, Yoichi Nakagawa, Yoshio Koyanagi, Kyohei Fujimoto | 2007-05-01 |
| 7164900 | Impulse waveform generating apparatus | Suguru Fujita, Kazuaki Takahashi | 2007-01-16 |
| 7162058 | Authentication system by fingerprint | Yoichi Seto, Takuo Ishizuka | 2007-01-09 |
| 7062245 | Radio transmission apparatus and radio reception apparatus | Kentaro Miyano, Youichi Nakagawa, Makoto Hasegawa, Yoshio Koyanagi | 2006-06-13 |
| 6922450 | Direction of arrival estimator and direction of arrival estimation method | Yasuaki Yuda, Takashi Fukagawa, Youichi Nakagawa | 2005-07-26 |
| 6919861 | Array antenna apparatus | Kentaro Miyano, Yoichi Nakagawa, Yoshio Koyanagi | 2005-07-19 |
| 6747564 | Security guarantee method and system | Yoichi Seto, Yoshiaki Isobe, Masaji Aoki | 2004-06-08 |
| 6710504 | Brushless DC motor | Shoji Ohiwa, Kazuo Ohnishi, Yoichi Nagata, Junichi Ikeda, Tomokazu Uchiyama +2 more | 2004-03-23 |
| 6648598 | Axial flow fan | — | 2003-11-18 |
| 6600451 | Ring resonator and antenna | Mitsuo Makimoto | 2003-07-29 |
| 6333713 | Direction estimating apparatus, directivity controlling antenna apparatus, and direction estimating method | Youichi Nakagawa, Takaaki Kishigami, Makoto Hasegawa, Takashi Fukagawa | 2001-12-25 |
| 6236690 | Direct-conversion receiver for digital-modulation signal | Makoto Hasegawa, Katsushi Yokozaki, Hiroyuki Harada, Takaaki Kishigami, Yasunari Tanaka | 2001-05-22 |
| 5984525 | Oil-retaining bearing structure for rotary machine | Junichi Ikeda, Naoya Ito, Takeaki Tamabuchi | 1999-11-16 |
| 5986720 | Mobile television receiver | Takaaki Kishigami, Makoto Hasegawa, Masahiko Nakamura, Yoshinori Takagi, Masanobu Kanaya | 1999-11-16 |
| 5987075 | FSK signal receiver | Katsuaki Abe, Takaaki Kishigami, Makoto Hasegawa, Katsushi Yokozaki, Yoichi Yamaki +2 more | 1999-11-16 |
| 5964576 | Impeller of centrifugal fan | Hideki Fujita, Naoya Ito | 1999-10-12 |
| 5894499 | Direct conversion receiver having filter with cut-off frequency switching means | Hiroshi Katayama, Yasumi Imagawa | 1999-04-13 |
| 5844632 | Diversity receiving apparatus for a mobile unit | Takaaki Kishigami, Makoto Hasegawa, Tadaaki Ushiyama, Masahiko Nakamura, Yoshinori Takagi | 1998-12-01 |
| 5833370 | Oil-retaining bearing structure for rotary machine | Junichi Ikeda, Naoya Ito, Takeaki Tamabuchi | 1998-11-10 |