Yoshio Kawahata

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic element and method of manufacturing magnetic element
- Patent number 7,449,985
- Issue date Nov 11, 2008
- Sumida Corporation
- Yuichiro Urano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Coil device, composite coil device, and transformer device
- Patent number 7,443,278
- Issue date Oct 28, 2008
- Sumida Corporation
- Yoshio Kawahata
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Coil Device, Composite Coil Device, and Transformer Device
- Publication number 20080186121
- Publication date Aug 7, 2008
- Sumida Corporation
- Yoshio Kawahata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Magnetic element and method of manufacturing magnetic element
- Publication number 20060170525
- Publication date Aug 3, 2006
- SUMIDA CORPORATION
- Yuichiro Urano
- H01 - BASIC ELECTRIC ELEMENTS