Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9274482 | Image forming apparatus with developing contrast control | Takahiro Nakase, Hideki Fujita, Michihito Yamazaki, Yasushi Takeuchi | 2016-03-01 |
| 6191668 | Coaxial resonator and dielectric filter using the same | Yasumi Kobayashi, Yasuhiro Hirao, Kenichi Shibata, Kazuhiro Kuroki | 2001-02-20 |
| 6034577 | Integrated interdigital electrode saw filter with specified distances between input/output electrodes | Kuniyuki Matsui, Yasuhiro Hirao, Yasumi Kobayashi, Kenichi Shibata | 2000-03-07 |
| 5883554 | Coaxial resonator having coupling electrodes and dielectric filter formed therefrom using the same | Yasumi Kobayashi, Yashuiro Hirao, Kenichi Shibata, Kazuhiro Kuroki | 1999-03-16 |
| 5877662 | Surface acoustic wave filter including series and parallel interdigital transducers | Yasumi Kobayashi, Kuniyuki Matsui, Yasuhiro Hirao, Hiroshi Kayaki, Yusuke Takahashi +3 more | 1999-03-02 |
| 5844453 | Surface acoustic wave filter utilizing a transducer having interdigital electrodes and continuously adjacent electrodes | Kuniyuki Matsui, Yasuhiro Hirao, Yasumi Kobayashi, Kenichi Shibata | 1998-12-01 |
| 5808523 | High frequency filter including both dielectric and surface acoustic wave resonators | Yasumi Kobayashi, Kuniyuki Matsui, Yasuhiro Hirao, Kenichi Shibata | 1998-09-15 |
| 5693428 | Organic electroluminescent device | Takanori Fujii, Takeshi Sano, Yuji Hamada, Kenichi Shibata | 1997-12-02 |
| 5675207 | Surface acoustic waver convolver | Yasuhiro Hirao, Kuniyuki Matsui, Yasumi Kobayashi, Kenichi Shibata | 1997-10-07 |
| 5663697 | Surface accoustic wave filter | Yasumi Kobayashi, Kuniyuki Matsui, Yasuhiro Hirao, Hiroshi Kayaki, Yusuke Takahashi +3 more | 1997-09-02 |
| 5543757 | Surface acoustic wave filter including alternate open and shorted reflector grating | Yasumi Kobayashi, Kuniyuki Matsui, Yasuhiro Hirao, Hiroshi Kayaki, Yusuke Takahashi +3 more | 1996-08-06 |
| 5534829 | Antenna duplexer | Yasumi Kobayashi, Yasuhiro Hirao, Kenichi Shibata | 1996-07-09 |
| 5422612 | Dielectric filter having corresponding individual external and ground electrodes formed on a dielectric substrate | Yasumi Kobayashi, Kachio Ikeda, Kenichi Shibata, Kazuhiko Kuroki | 1995-06-06 |
| 5345202 | Dielectric filter comprising a plurality of coaxial resonators of different lengths all having the same resonant frequency | Yasumi Kobayashi, Kachio Ikeda, Kenichi Shibata, Kazuhiko Kuroki | 1994-09-06 |
| 5293141 | Dielectric filter having external connection terminals on dielectric substrate and antenna duplexer using the same | Yasumi Kobayashi, Kachio Ikeda, Kenichi Shibata, Kazuhiko Kuroki | 1994-03-08 |
| 5059847 | Surface acoustic wave device | Toshiharu Tanaka, Kenichi Shibata, Masakazu Sakata, Hiroshi Okano, Kazuhiko Kuroki | 1991-10-22 |
| 5036199 | Liquid crystal chopper and infrared sensor | Masakazu Sakata, Kenichi Shibata, Toshiharu Tanaka, Hiroshi Okano, Toshikazu Tsujino +1 more | 1991-07-30 |
| 4950900 | Heated infrared gas analyzer using a pyroelectric infrared sensor | Kenichi Shibata, Toshiharu Tanaka, Seiji Nishikawa, Kazuhiko Kuroki, Shoichi Nakano | 1990-08-21 |
| 4868444 | Surface acoustic wave device | Kenichi Shibata, Toshiaki Yokoo, Toshiharu Tanaka, Maruo Kamino | 1989-09-19 |
| 4743122 | Infrared-ray temperature measuring apparatus | Masaru Yamano, Yukinori Kuwano, Toshiaki Yokoo, Kenichi Shibata, Toshiharu Tanaka | 1988-05-10 |