Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7246421 | Method for manufacturing surface acoustic wave device | Akihiko Namba, Keiji Onishi, Yasuhiro Sugaya | 2007-07-24 |
| 7145281 | Driving circuit for piezoelectric transformer, cold-cathode tube light-emitting apparatus, liquid crystal panel and device with built-in liquid crystal panel | Katsu Takeda, Hiroshi Nakatsuka | 2006-12-05 |
| 7038354 | Driving circuit for piezoelectric transformer, cold-cathode tube light-emitting apparatus, liquid crystal panel and device with built-in liquid crystal panel | Katsu Takeda, Hiroshi Nakatsuka | 2006-05-02 |
| 7034800 | Driving circuit and driving method for piezoelectric transformer, backlight apparatus, liquid crystal display apparatus, liquid crystal monitor, and liquid crystal TV | Hiroshi Nakatsuka, Katsu Takeda, Takashi Ishikawa | 2006-04-25 |
| 7030538 | Piezoelectric transformer, piezoelectric transformer unit, inverter circuit, light emission control device, and liquid crystal display device | Hiroshi Nakatsuka, Katsu Takeda, Hiroshi Fukushima, Yusuke Adachi | 2006-04-18 |
| 6992424 | Piezoelectric vibrator ladder-type filter using piezoeletric vibrator and double-mode piezolectric filter | Yukinori Sasaki, Tetsuro Shimamura, Tetsuo Kawasaki, Kazunari Nishihara, Tetsuya Furihata +2 more | 2006-01-31 |
| 6989626 | Piezoelectric transformer | Katsu Takeda, Hiroshi Nakatsuka, Takeshi Yamaguchi, Kojiro Okuyama | 2006-01-24 |
| 6969945 | Surface acoustic wave device, method for manufacturing, and electronic circuit device | Akihiko Namba, Keiji Onishi, Yasuhiro Sugaya | 2005-11-29 |
| 6812623 | Piezoelectric transformer | Katsu Takeda, Hiroshi Nakatsuka, Takeshi Yamaguchi, Kojiro Okuyama | 2004-11-02 |
| 6794796 | Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer | Hiroshi Nakatsuka, Toshiyuki Asahi, Kojiro Okuyama, Osamu Kawasaki | 2004-09-21 |
| 6737816 | Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer | Hiroshi Nakatsuka, Toshiyuki Asahi, Kojiro Okuyama, Osamu Kawasaki | 2004-05-18 |
| 6720705 | Method of driving a piezoelectric transformer and power source apparatus using the same | Hiroshi Nakatsuka, Takeshi Yamaguchi, Katsu Takeda, Kojiro Okuyama | 2004-04-13 |
| 6710682 | Surface acoustic wave device, method for producing the same, and circuit module using the same | Keiji Onishi, Akihiro Nanba, Hiroki Sato, Yoshihiro Bessho, Kunihiro Fujii +1 more | 2004-03-23 |
| 6621194 | Piezoelectric element having thickness shear vibration and mobile communication device using the same | Masato Sugimoto, Tetsuro Otsuchi | 2003-09-16 |
| 6590293 | Electronic component, having projection electrodes and methods for manufacturing thereof | Keiji Onishi, Akihiko Namba | 2003-07-08 |
| 6583534 | Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer | Hiroshi Nakatsuka, Toshiyuki Asahi, Kojiro Okuyama, Osamu Kawasaki | 2003-06-24 |
| 6566821 | Drive device and drive method for a cold cathode fluorescent lamp | Hiroshi Nakatsuka, Takeshi Yamaguchi, Katsu Takeda | 2003-05-20 |
| 6509700 | Apparatus and method for driving a cathode discharge tube | Hiroshi Nakatsuka, Takeshi Yamaguchi, Katsu Takeda, Kojiro Okuyama | 2003-01-21 |
| 6509671 | Driving method and driving circuit for piezoelectric transformer, cold cathode tube emission device, liquid crystal panel and liquid crystal panel built-in apparatus | Katsu Takeda, Hiroshi Nakatsuka, Takeshi Yamaguchi | 2003-01-21 |
| 6433458 | Method and unit for driving piezoelectric transformer used for controlling luminance of cold-cathode tube | Hiroshi Nakatsuka, Toshiyuki Asahi, Kojiro Okuyama, Osamu Kawasaki | 2002-08-13 |
| 6268983 | Head actuator driven by piezoelectric element | Katsumi Imada, Tetsuro Otsuchi, Osamu Kawasaki | 2001-07-31 |
| 6227051 | Acceleration sensor | Tetsuro Otsuchi, Katsu Takeda, Osamu Kawasaki, Junichi Kato, Kouji Kawakita +1 more | 2001-05-08 |
| 6222302 | Piezoelectric actuator, infrared sensor and piezoelectric light deflector | Katsumi Imada, Takeshi Masutani, Kouji Nomura, Kouji Kawakita | 2001-04-24 |
| 6084336 | Piezoelectric transformer | Osamu Kawasaki, Hiroshi Nakatsuka | 2000-07-04 |
| 6050144 | Acceleration sensor | Tetsuro Otsuchi, Katsu Takeda, Osamu Kawasaki, Junichi Kato, Kouji Kawakita +1 more | 2000-04-18 |