Keishi Oohashi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electric field/magnetic field sensors and methods of fabricating th...
- Patent number 8,519,323
- Issue date Aug 27, 2013
- NEC Corporation
- Masafumi Nakada
- G01 - MEASURING TESTING
Information Patent Grant
Electric field sensor and method for fabricating the same
- Patent number 8,153,955
- Issue date Apr 10, 2012
- NEC Corporation
- Masafumi Nakada
- G01 - MEASURING TESTING
Information Patent Grant
Method for fabricating photodiodes
- Patent number 7,883,911
- Issue date Feb 8, 2011
- NEC Corporation
- Keishi Oohashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photodiode and method for fabricating same
- Patent number 7,728,366
- Issue date Jun 1, 2010
- NEC Corporation
- Keishi Oohashi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC FIELD/MAGNETIC FIELD SENSORS AND METHODS OF FABRICATING TH...
- Publication number 20120164321
- Publication date Jun 28, 2012
- NEC Corporation
- Masafumi Nakada
- G01 - MEASURING TESTING
Information Patent Application
ELECTRIC FIELD/MAGNETIC FIELD SENSORS AND METHODS OF FABRICATING TH...
- Publication number 20090224753
- Publication date Sep 10, 2009
- NEC Corporation
- Masafumi Nakada
- G01 - MEASURING TESTING
Information Patent Application
PHOTODIODE AND METHOD FOR FABRICATING SAME
- Publication number 20090176327
- Publication date Jul 9, 2009
- Keishi Oohashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Photodiode and method for fabricating same
- Publication number 20070194357
- Publication date Aug 23, 2007
- Keishi Oohashi
- H01 - BASIC ELECTRIC ELEMENTS