Sumio Koiwa

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device and designing method for the same
- Patent number 7,606,012
- Issue date Oct 20, 2009
- Seiko Instruments Inc.
- Sumio Koiwa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Short-wavelength photodiode of enhanced sensitivity with low leak c...
- Patent number 6,809,391
- Issue date Oct 26, 2004
- Seiko Instruments Inc.
- Sumio Koiwa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Complementary MOS semiconductor device
- Patent number 6,777,752
- Issue date Aug 17, 2004
- Seiko Instruments Inc.
- Jun Osanai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing a semiconductor device
- Patent number 6,297,120
- Issue date Oct 2, 2001
- Seiko Instruments Inc.
- Sumio Koiwa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
MOS semiconductor device
- Patent number 6,037,627
- Issue date Mar 14, 2000
- Seiko Instruments Inc.
- Kenji Kitamura
- H01 - BASIC ELECTRIC ELEMENTS