Issued Patents All Time
Showing 26–50 of 76 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7554422 | Filter module using piezoelectric resonators, duplexer, communication device, and method for fabricating filter module | Naohiro Tsurumi, Kazuhiro Yahata | 2009-06-30 |
| 7531943 | Acoustic resonator and filter | Keiji Onishi, Hiroyuki Nakamura, Tomohiro Iwasaki | 2009-05-12 |
| 7479847 | Filter using piezoelectric resonator | Takehiko Yamakawa, Hiroshi Yamaguchi, Hiroyuki Nakamura, Keiji Onishi, Toshio Ishizaki | 2009-01-20 |
| 7477115 | Piezoelectric resonator, method of manufacturing piezoelectric resonator, and filter, duplexer, and communication device using piezoelectric resonator | Keiji Onishi, Hiroyuki Nakamura, Takehiko Yamakawa, Hiroshi Yamaguchi | 2009-01-13 |
| 7446455 | Thin film elastic wave resonator | Tomohiro Iwasaki, Keiji Onishi | 2008-11-04 |
| 7417360 | Piezoelectric resonator and method for producing the same | Tomohide Kamiyama, Keiji Onishi, Takehiko Yamakawa, Tomohiro Iwasaki | 2008-08-26 |
| 7414495 | Coupled FBAR filter | Tomohiro Iwasaki, Keiji Onishi, Hiroyuki Nakamura | 2008-08-19 |
| 7408429 | Coupled FBAR filter | Tomohiro Iwasaki, Keiji Onishi, Hiroyuki Nakamura | 2008-08-05 |
| 7301420 | Piezoelectric resonator filter | Hiroshi Yamaguchi, Takehiko Yamakawa, Hiroyuki Nakamura, Keiji Onishi | 2007-11-27 |
| 7259498 | Piezoelectric resonator, filter, and duplexer | Keiji Onishi, Hiroyuki Nakamura, Takehiko Yamakawa | 2007-08-21 |
| 7242130 | Piezoelectric device, antenna duplexer, and method of manufacturing piezoelectric resonators used therefor | Hiroyuki Nakamura, Keiji Onishi, Hiroshi Yamaguchi, Takehiko Yamakawa | 2007-07-10 |
| 7235915 | Acoustic resonator device, filter device, manufacturing method for acoustic resonator device, and communication apparatus | Hiroyuki Nakamura, Keiji Onishi, Tomohiro Iwasaki | 2007-06-26 |
| 7230511 | Thin film bulk acoustic resonator, method for producing the same, filter, composite electronic component device, and communication device | Keiji Onishi, Hiroyuki Nakamura, Takehiko Yamakawa | 2007-06-12 |
| 7230367 | Piezoelectric resonator, production method thereof, filter, duplexer, and communication device | Hiroshi Yamaguchi, Keiji Onishi, Takehiko Yamakawa, Hiroyuki Nakamura | 2007-06-12 |
| 7224105 | Piezoelectric element, composite piezoelectric element, and filter, duplexer and communication equipment using the same | Keiji Onishi, Hiroyuki Nakamura | 2007-05-29 |
| 7202592 | Piezoelectric transformer, power supply circuit and lighting unit using the same | Katsu Takeda | 2007-04-10 |
| 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, Katsunori Moritoki | 2006-12-05 |
| 7138888 | Filter using piezoelectric resonator | Takehiko Yamakawa, Hiroshi Yamaguchi, Hiroyuki Nakamura, Keiji Onishi, Toshio Ishizaki | 2006-11-21 |
| 7113055 | Piezoelectric resonator, method of manufacturing piezoelectric resonator, and filter, duplexer, and communication device using piezoelectric resonator | Keiji Onishi, Hiroyuki Nakamura, Takehiko Yamakawa, Hiroshi Yamaguchi | 2006-09-26 |
| 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, Katsunori Moritoki | 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 | Katsu Takeda, Takashi Ishikawa, Katsunori Moritoki | 2006-04-25 |
| 7030538 | Piezoelectric transformer, piezoelectric transformer unit, inverter circuit, light emission control device, and liquid crystal display device | Katsu Takeda, Katsunori Moritoki, Hiroshi Fukushima, Yusuke Adachi | 2006-04-18 |
| 7012578 | Light emission control device, backlight device, liquid crystal display apparatus, liquid crystal monitor and liquid crystal television | Katsu Takeda | 2006-03-14 |
| 6989626 | Piezoelectric transformer | Katsu Takeda, Takeshi Yamaguchi, Kojiro Okuyama, Katsunori Moritoki | 2006-01-24 |
| 6911787 | Driving method and driving circuit for piezoelectric transformer, cold-cathode tube light-emitting apparatus, liquid crystal panel and device with built-in liquid crystal panel | Katsu Takeda | 2005-06-28 |