Shigehisa Tomabechi

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Mine-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Plastic packaging with high heat dissipation and method for the same
- Patent number 7,023,084
- Issue date Apr 4, 2006
- Sumitomo Metal (SMI) Electronics Devices Inc.
- Shigehisa Tomabechi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Radiation type BGA package and production method therefor
- Patent number 6,861,747
- Issue date Mar 1, 2005
- Sumitomo Metal (SMI) Electronics Devices Inc.
- Takeshi Miyazaki
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Plastic packaging with high heat dissipation and method for the same
- Publication number 20050221537
- Publication date Oct 6, 2005
- Sumitomo Metal (SMI) Electronics Devices Inc.
- Shigehisa Tomabechi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Plastic packaging with high heat dissipation and method for the same
- Publication number 20050073044
- Publication date Apr 7, 2005
- Sumitomo Metal Electronics Devices Inc.
- Shigehisa Tomabechi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Radiation type bga package and production method therefor
- Publication number 20040051172
- Publication date Mar 18, 2004
- Takeshi Miyazaki
- H01 - BASIC ELECTRIC ELEMENTS