Tsuyoshi Tokiwa

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Nakatsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Lead frame for semiconductor device, process for producing the same...
- Patent number 6,646,330
- Issue date Nov 11, 2003
- Matsushita Electric Industrial Co., Ltd.
- Takashi Kubara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device with a coating of Pb-free Sn-base solder and m...
- Patent number 6,395,583
- Issue date May 28, 2002
- Matsushita Electric Industrial Co., Ltd.
- Takashi Kubara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor devices having tin-based solder film containing no le...
- Patent number 6,087,714
- Issue date Jul 11, 2000
- Matsushita Electric Industrial Co., Ltd.
- Takashi Kubara
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Lead frame for semiconductor device, process for producing the same...
- Publication number 20020053721
- Publication date May 9, 2002
- Takashi Kubara
- H01 - BASIC ELECTRIC ELEMENTS