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Kunio Umehara
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Yokohama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Display with scan converter for converting scanning frequency of in...
Patent number
6,404,459
Issue date
Jun 11, 2002
Hitachi, Ltd.
Kouji Kitou
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Display operation method to change the number of images to be displ...
Patent number
6,396,506
Issue date
May 28, 2002
Hitachi, Ltd.
Takeshi Hoshino
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Display with scan converter for converting scanning frequency of in...
Patent number
5,870,073
Issue date
Feb 9, 1999
Hitachi, Ltd.
Kouji Kitou
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Scalable CRT display device and phase synchronous circuit for use i...
Patent number
5,712,532
Issue date
Jan 27, 1998
Hitachi, Ltd.
Masanori Ogino
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Switching regulator for television receiver for generating a stabil...
Patent number
4,118,739
Issue date
Oct 3, 1978
Hitachi, Ltd.
Kunio Umehara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit for extinguishing abnormally high voltage in television rec...
Patent number
4,115,814
Issue date
Sep 19, 1978
Hitachi, Ltd.
Kimito Kosaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE