Shun-ichi Seki

Person

Hyogo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Acoustic wave device, and filter and duplexer using the same
- Patent number 8,576,025
- Issue date Nov 5, 2013
- Panasonic Corporation
- Takashi Inoue
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Elastic wave element and electronic apparatus using same
- Patent number 8,564,172
- Issue date Oct 22, 2013
- Panasonic Corporation
- Shun-ichi Seki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Surface acoustic wave resonator and surface acoustic wave filter us...
- Patent number 7,646,266
- Issue date Jan 12, 2010
- Panasonic Corporation
- Tsutomu Igaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Band elimination filter, filter device, antenna duplexer and commun...
- Patent number 7,084,718
- Issue date Aug 1, 2006
- Matsushita Electric Industrial Co., Ltd.
- Hiroyuki Nakamura
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Antenna duplexer, design method for antenna duplexer, production me...
- Patent number 7,034,635
- Issue date Apr 25, 2006
- Matsushita Electric Industrial Co., Ltd.
- Hiroyuki Nakamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Surface acoustic wave filter, and antenna duplexer and communicatio...
- Patent number 6,975,180
- Issue date Dec 13, 2005
- Matsushita Electric Industrial Co., Ltd.
- Hiroyuki Nakamura
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Resonator ladder type surface acoustic wave filter
- Patent number 6,166,611
- Issue date Dec 26, 2000
- Matsushita Electric Industrial Co., Ltd.
- Shun-ichi Seki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic part and a method of production thereof
- Patent number 6,154,940
- Issue date Dec 5, 2000
- Matsushita Electric Industrial Co., Ltd.
- Keiji Onishi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Filter circuit having plural passing bands
- Patent number 6,043,725
- Issue date Mar 28, 2000
- Matsushita Electric Industrial Co., Ltd.
- Yutaka Taguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Surface acoustic wave devices and their manufacturing method
- Patent number 5,998,907
- Issue date Dec 7, 1999
- Matsushita Electric Industrial Co., Ltd.
- Yutaka Taguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method of manufacture of surface acoustic wave device
- Patent number 5,991,989
- Issue date Nov 30, 1999
- Matsushita Electric Industrial Co., Ltd.
- Keiji Onishi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic part and a method of production thereof
- Patent number 5,920,142
- Issue date Jul 6, 1999
- Matsushita Electric Industrial Co., Ltd.
- Keiji Onishi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High frequency filter having saw and dielectric filters with differ...
- Patent number 5,894,251
- Issue date Apr 13, 1999
- Matsushita Electric Industrial Co., Ltd.
- Yutaka Taguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Balanced-type surface acoustic wave lattice filter
- Patent number 5,847,626
- Issue date Dec 8, 1998
- Matsushita Electric Industrial Co., Ltd.
- Yutaka Taguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Surface acoustic wave device and method of manufacture
- Patent number 5,821,665
- Issue date Oct 13, 1998
- Matsushita Electric Industrial Co., Ltd.
- Keiji Onishi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Resonator ladder surface acoustic wave filter suppressing spurious...
- Patent number 5,729,186
- Issue date Mar 17, 1998
- Matsushita Electric Industrial Co., Ltd.
- Shun-ichi Seki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Surface acoustic wave filter with different filter portions satisfy...
- Patent number 5,592,135
- Issue date Jan 7, 1997
- Matsushita Electric Industrial Co., Ltd.
- Yutaka Taguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Surface acoustic wave filter having parallel/serial resonator conne...
- Patent number 5,589,806
- Issue date Dec 31, 1996
- Matsushita Electric Industrial Co., Ltd.
- Yutaka Taguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Surface acoustic wave filter with multiple ground terminals
- Patent number 5,506,552
- Issue date Apr 9, 1996
- Matsushita Electric Industrial Co., Ltd.
- Shun-ichi Seki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Surface acoustic wave device with interdigital transducers formed o...
- Patent number 5,453,652
- Issue date Sep 26, 1995
- Matsushita Electric Industrial Co., Ltd.
- Kazuo Eda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Surface acoustic wave device having a lamination structure
- Patent number 5,446,330
- Issue date Aug 29, 1995
- Matsushita Electric Industrial Co., Ltd.
- Kazuo Eda
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
ELASTIC WAVE ELEMENT AND ELECTRONIC APPARATUS USING SAME
- Publication number 20120019102
- Publication date Jan 26, 2012
- PANASONIC CORPORTION
- Shun-ichi Seki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ACOUSTIC WAVE DEVICE, AND FILTER AND DUPLEXER USING THE SAME
- Publication number 20110156837
- Publication date Jun 30, 2011
- PANASONIC CORPORATION
- Takashi INOUE
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Surface Acoustic Wave Resonator and Surface Acoustic Wave Filter Us...
- Publication number 20080018417
- Publication date Jan 24, 2008
- Tsutomu Igaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Band elimination filter, filter device, antenna duplexer and commun...
- Publication number 20050099244
- Publication date May 12, 2005
- Hiroyuki Nakamura
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Antenna duplexer, design method for antenna duplexer, production me...
- Publication number 20040251987
- Publication date Dec 16, 2004
- Hiroyuki Nakamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Shun-ichi Seki

Person

Patents Grantslast 30 patents

Acoustic wave device, and filter and duplexer using the same

Elastic wave element and electronic apparatus using same

Surface acoustic wave resonator and surface acoustic wave filter us...

Band elimination filter, filter device, antenna duplexer and commun...

Antenna duplexer, design method for antenna duplexer, production me...

Surface acoustic wave filter, and antenna duplexer and communicatio...

Resonator ladder type surface acoustic wave filter

Electronic part and a method of production thereof

Filter circuit having plural passing bands

Surface acoustic wave devices and their manufacturing method

Method of manufacture of surface acoustic wave device

Electronic part and a method of production thereof

High frequency filter having saw and dielectric filters with differ...

Balanced-type surface acoustic wave lattice filter

Surface acoustic wave device and method of manufacture

Resonator ladder surface acoustic wave filter suppressing spurious...

Surface acoustic wave filter with different filter portions satisfy...

Surface acoustic wave filter having parallel/serial resonator conne...

Surface acoustic wave filter with multiple ground terminals

Surface acoustic wave device with interdigital transducers formed o...

Surface acoustic wave device having a lamination structure

Patents Applicationslast 30 patents

ELASTIC WAVE ELEMENT AND ELECTRONIC APPARATUS USING SAME

ACOUSTIC WAVE DEVICE, AND FILTER AND DUPLEXER USING THE SAME

Surface Acoustic Wave Resonator and Surface Acoustic Wave Filter Us...

Band elimination filter, filter device, antenna duplexer and commun...

Antenna duplexer, design method for antenna duplexer, production me...