Kei Matsutani

Person

Nagaokakyo-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Radio frequency front-end circuit and communication device
- Patent number 10,715,109
- Issue date Jul 14, 2020
- Murata Manufacturing Co., Ltd.
- Kei Matsutani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Variable frequency filter, radio frequency front-end circuit, and c...
- Patent number 10,382,006
- Issue date Aug 13, 2019
- Murata Manufacturing Co., Ltd.
- Hideki Tsukamoto
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Resonator, filter, nonreciprocal circuit device, and communication...
- Patent number 7,471,173
- Issue date Dec 30, 2008
- Murata Manufacturing Co., Ltd.
- Seiji Hidaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High-frequency transmission line
- Patent number 6,870,449
- Issue date Mar 22, 2005
- Murata Manufacturing Co., Ltd.
- Nobumasa Kitamori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
COMPLEX CIRCUIT BOARD, NONRECIPROCAL CIRCUIT DEVICE, RESONATOR, FIL...
- Patent number 6,861,920
- Issue date Mar 1, 2005
- Murata Manufacturing Co., Ltd.
- Yohei Ishikawa
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Dielectric transmission line attenuator, dielectric transmission li...
- Patent number 6,657,514
- Issue date Dec 2, 2003
- Murata Manufacturing Co. Ltd.
- Hiromu Tokudera
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
COMPLEX CIRCUIT BOARD, NONRECIPROCAL CIRCUIT DEVICE, RESONATOR, FIL...
- Patent number 6,646,516
- Issue date Nov 11, 2003
- Murata Manufacturing Co., Ltd.
- Yohei Ishikawa
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Dielectric waveguide nonreciprocal circuit device with a non-interf...
- Patent number 6,496,080
- Issue date Dec 17, 2002
- Murata Manufacturing Co., Ltd.
- Yutaka Ishiura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Complex circuit board with an electrode and air gap between dielect...
- Patent number 6,472,960
- Issue date Oct 29, 2002
- Murata Manufacturing Co., Ltd.
- Yohei Ishikawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Dielectric-waveguide attenuator, dielectric-waveguide terminator, a...
- Patent number 6,441,698
- Issue date Aug 27, 2002
- Murata Manufacturing Co. Ltd.
- Kei Matsutani
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
RADIO FREQUENCY CIRCUIT AND COMMUNICATION APPARATUS
- Publication number 20250023586
- Publication date Jan 16, 2025
- Murata Manufacturing Co., Ltd.
- Motoji TSUDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RADIO FREQUENCY FRONT-END CIRCUIT AND COMMUNICATION DEVICE
- Publication number 20190214968
- Publication date Jul 11, 2019
- MURATA MANUFACTURING CO., LTD.
- Kei MATSUTANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
VARIABLE FREQUENCY FILTER, RADIO FREQUENCY FRONT-END CIRCUIT, AND C...
- Publication number 20190036508
- Publication date Jan 31, 2019
- MURATA MANUFACTURING CO., LTD.
- Hideki TSUKAMOTO
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Resonator, filter, nonreciprocal circuit device, and communication...
- Publication number 20070080761
- Publication date Apr 12, 2007
- Seiji Hidaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Complex circuit board, nonreciprocal circuit device, resonator, fil...
- Publication number 20040041646
- Publication date Mar 4, 2004
- Murata Manufacturing Co., Ltd.
- Yohei Ishikawa
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
High-frequency transmission line
- Publication number 20030112092
- Publication date Jun 19, 2003
- Nobumasa Kitamori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Complex circuit board, nonreciprocal circuit device, resonator, fil...
- Publication number 20020196093
- Publication date Dec 26, 2002
- Murata Manufacturing Co., Ltd.
- Yohei Ishikawa
- H01 - BASIC ELECTRIC ELEMENTS

Kei Matsutani

Person

Patents Grantslast 30 patents

Radio frequency front-end circuit and communication device

Variable frequency filter, radio frequency front-end circuit, and c...

Resonator, filter, nonreciprocal circuit device, and communication...

High-frequency transmission line

COMPLEX CIRCUIT BOARD, NONRECIPROCAL CIRCUIT DEVICE, RESONATOR, FIL...

Dielectric transmission line attenuator, dielectric transmission li...

COMPLEX CIRCUIT BOARD, NONRECIPROCAL CIRCUIT DEVICE, RESONATOR, FIL...

Dielectric waveguide nonreciprocal circuit device with a non-interf...

Complex circuit board with an electrode and air gap between dielect...

Dielectric-waveguide attenuator, dielectric-waveguide terminator, a...

Patents Applicationslast 30 patents

RADIO FREQUENCY CIRCUIT AND COMMUNICATION APPARATUS

RADIO FREQUENCY FRONT-END CIRCUIT AND COMMUNICATION DEVICE

VARIABLE FREQUENCY FILTER, RADIO FREQUENCY FRONT-END CIRCUIT, AND C...

Resonator, filter, nonreciprocal circuit device, and communication...

Complex circuit board, nonreciprocal circuit device, resonator, fil...

High-frequency transmission line

Complex circuit board, nonreciprocal circuit device, resonator, fil...