Takahiro Yamakawa

Person

Saitama-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
High-frequency dielectric material
- Patent number 7,781,359
- Issue date Aug 24, 2010
- Yokowo Co., Ltd.
- Takahiro Yamakawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for producing a stacked piezoelectric element
- Patent number 6,951,048
- Issue date Oct 4, 2005
- Canon Kabushiki Kaisha
- Yutaka Maruyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for producing a stacked piezoelectric element
- Patent number 6,668,437
- Issue date Dec 30, 2003
- Canon Kabushiki Kaisha
- Yutaka Maruyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Piezoelectric transformer element and method of mounting it in a ho...
- Patent number 6,342,752
- Issue date Jan 29, 2002
- Taiheiyo Cement Corporation
- Masako Kataoka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Stacked piezoelectric element and producing method therefor
- Patent number 6,291,932
- Issue date Sep 18, 2001
- Canon Kabushiki Kaisha
- Yutaka Maruyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Piezoelectric transformer device
- Patent number 6,172,447
- Issue date Jan 9, 2001
- Taiheiyo Cement Corporation
- Katsuyuki Ishikawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Stacked element and vibration drive device
- Patent number 6,114,798
- Issue date Sep 5, 2000
- Canon Kabushiki Kaisha
- Yutaka Maruyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Laminated piezoelectric element and vibration wave actuator
- Patent number 5,770,916
- Issue date Jun 23, 1998
- Canon Kabushiki Kaisha
- Toru Ezaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
High-Frequency Dielectric Material
- Publication number 20090124482
- Publication date May 14, 2009
- YOKOWO CO., LTD
- Takahiro Yamakawa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Dielectric Ceramic Composition
- Publication number 20090105063
- Publication date Apr 23, 2009
- YOKOWO CO., LTD
- Shi Luo
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Method for producing a stacked piezoelectric element
- Publication number 20040088842
- Publication date May 13, 2004
- Canon Kabushiki Kaisha
- Yutaka Maruyama
- H01 - BASIC ELECTRIC ELEMENTS

Takahiro Yamakawa

Person

Patents Grantslast 30 patents

High-frequency dielectric material

Method for producing a stacked piezoelectric element

Method for producing a stacked piezoelectric element

Piezoelectric transformer element and method of mounting it in a ho...

Stacked piezoelectric element and producing method therefor

Piezoelectric transformer device

Stacked element and vibration drive device

Laminated piezoelectric element and vibration wave actuator

Patents Applicationslast 30 patents

High-Frequency Dielectric Material

Dielectric Ceramic Composition

Method for producing a stacked piezoelectric element