Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11828293 | Closed impeller and method of manufacturing the same | Tadashi Okada, Kaoru UEDA, Yasunaga Itoh | 2023-11-28 |
| 10804003 | Conductive paste for forming solar cell electrode | Masayuki Kurahashi, Naoto Shindo | 2020-10-13 |
| 10666362 | Optical transmission system, PON system, and transmission method | Shota ISHIMURA, Kazuki Tanaka, Masatoshi Suzuki | 2020-05-26 |
| 8213987 | Terminal device capable of outputting image data to external display device in supported image format | Reiko Takizuka | 2012-07-03 |
| 7388318 | Thin film piezoelectric resonator, thin film piezoelectric device, and manufacturing method thereof | Tetsuo Yamada, Keigo Nagao | 2008-06-17 |
| 7035495 | Chromatic dispersion device | Hidenori Takahashi, Ryo Inohara, Masashi Usami | 2006-04-25 |
| 6885260 | Filter using film bulk acoustic resonator and transmission/reception switch | Keigo Nagao, Chisen Hashimoto, Eiji Masui, Hirofumi Kimura | 2005-04-26 |
| 6885262 | Band-pass filter using film bulk acoustic resonator | Masataka Fujinaga, Masahide Kondo | 2005-04-26 |
| 6828883 | High performance dielectric ceramic filter | Masahiko Kitajima, Hiroshi Nakamura | 2004-12-07 |
| 6801692 | Optical coupling structure | Masashi Usami, Hidenori Takahashi | 2004-10-05 |
| 6731836 | Dispersion compensator | Hidenori Takahashi, Masashi Usami | 2004-05-04 |
| 6728019 | Optical gate and optical phase modulator | Masashi Usami, Munefumi Tsurusawa | 2004-04-27 |
| 6724279 | Duplexer filter with offset resonator holes | Masahiko Kitajima, Hiroshi Nakamura | 2004-04-20 |
| 6614330 | High performance dielectric ceramic filter | Masahiko Kitajima, Hiroshi Nakamura | 2003-09-02 |
| 6404306 | Dielectric ceramic filter with improved electrical characteristics in high side of filter passband | Masahiko Kitajima, Hiroshi Nakamura | 2002-06-11 |
| 6377388 | Optical signal processor | Haruhisa Sakata, Masashi Usami, Munefumi Tsurusawa | 2002-04-23 |
| 6313721 | High performance dielectric ceramic filter using a non-linear array of holes | Masahiko Kitajima, Nobuhiro Harada | 2001-11-06 |
| 5001780 | Optical communication adapter with projector | — | 1991-03-19 |
| 4918649 | Method for generating instructions for inhibition switch-off of power after power-off operation | — | 1990-04-17 |
| 4809192 | Audio output device with speech synthesis technique | Isamu Washizuka, Mitsuhiro Saiji | 1989-02-28 |
| 4768162 | Electronic apparatus having a power control circuit for developing a power disconnection invalidating instruction in order to protect memory contents | — | 1988-08-30 |
| 4724527 | Electronic personal asset control device | Yoshiro Kataoka | 1988-02-09 |
| 4707794 | Playback operation circuit in synthetic-speech calculator | Shintaro Hashimoto, Sigeaki Masuzawa, Hisao Kunita, Tomohiro Inoue | 1987-11-17 |
| 4705211 | Card-type data terminal operatively connectable to electronic apparatus | Toshio Honda | 1987-11-10 |
| 4701862 | Audio output device with speech synthesis technique | Isamu Washizuka, Mitsuhiro Saiji | 1987-10-20 |