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Yutaka Takei
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Key structure of operation section of electronic device, input devi...
Patent number
8,692,775
Issue date
Apr 8, 2014
NEC Corporation
Yutaka Takei
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Mobile terminal apparatus
Patent number
7,664,256
Issue date
Feb 16, 2010
Sony Corporation
Yutaka Takei
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Surface hardened resins for disk substrates, methods of manufacture...
Patent number
6,555,182
Issue date
Apr 29, 2003
Sony Corporation
Minehiro Tonosaki
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for calculating color correction conditions, a method for de...
Patent number
5,949,962
Issue date
Sep 7, 1999
Konica Corporation
Tohru Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for manufacturing a magnetic recording medium
Patent number
4,508,752
Issue date
Apr 2, 1985
Sony Corporation
Yutaka Takei
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Magnetic alloy
Patent number
4,362,581
Issue date
Dec 7, 1982
Sony Corporation
Hiroshi Kimura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of manufacturing a magnetic recording medium
Patent number
4,332,834
Issue date
Jun 1, 1982
Sony Corporation
Yutaka Takei
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic alloy
Patent number
4,299,622
Issue date
Nov 10, 1981
Sony Corporation
Hiroshi Kimira
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
KEY STRUCTURE OF OPERATION SECTION OF ELECTRONIC DEVICE, INPUT DEVI...
Publication number
20110273373
Publication date
Nov 10, 2011
NEC Corporation
Yutaka Takei
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Mobile terminal apparatus
Publication number
20060139898
Publication date
Jun 29, 2006
SONY CORPORATION
Yutaka Takei
H04 - ELECTRIC COMMUNICATION TECHNIQUE