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Nobuaki Umeki
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Kyoto, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Oscillator circuit
Patent number
8,368,475
Issue date
Feb 5, 2013
Rohm Co., Ltd.
Kenji Nakada
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Semiconductor device and method of designing the same
Patent number
8,044,396
Issue date
Oct 25, 2011
Rohm Co., Ltd.
Nobuaki Umeki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Switching regulator and control circuit thereof
Patent number
7,994,769
Issue date
Aug 9, 2011
Rohm Co., Ltd.
Nobumasa Ohtake
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Semiconductor device and method of designing the same
Patent number
7,977,124
Issue date
Jul 12, 2011
Rohm Co., Ltd.
Nobuaki Umeki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Switching power-supply circuit and semiconductor integrated circuit
Patent number
7,453,287
Issue date
Nov 18, 2008
Rohm Co., Ltd.
Nobuaki Umeki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Sensor signal detection device
Patent number
7,196,553
Issue date
Mar 27, 2007
Rohm Co., Ltd.
Nobuaki Umeki
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Semiconductor integrated device
Patent number
7,173,326
Issue date
Feb 6, 2007
Rohm Co., Ltd.
Nobuaki Umeki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Sensor signal detection device
Patent number
7,026,844
Issue date
Apr 11, 2006
Rohm Co., Ltd.
Nobuaki Umeki
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Switching regulator
Patent number
7,002,330
Issue date
Feb 21, 2006
Rohm Co., Ltd.
Hiroshi Kitani
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Lithium-ion battery pack
Patent number
5,998,967
Issue date
Dec 7, 1999
Rohm Co., Ltd.
Nobuaki Umeki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Battery protection device and a battery device employing such a bat...
Patent number
5,986,865
Issue date
Nov 16, 1999
Rohm Co., Ltd.
Nobuaki Umeki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
SEMICONDUCTOR DEVICE AND METHOD OF DESIGNING THE SAME
Publication number
20110233725
Publication date
Sep 29, 2011
Rohm Co., Ltd.
Nobuaki UMEKI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OSCILLATOR CIRCUIT
Publication number
20100253301
Publication date
Oct 7, 2010
Rohm Co., Ltd.
Kenji NAKADA
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
SWITCHING REGULATOR AND CONTROL CIRCUIT THEREOF
Publication number
20100109625
Publication date
May 6, 2010
Rohm Co., Ltd.
Nobumasa OHTAKE
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
SEMICONDUCTOR DEVICE AND METHOD OF DESIGNING THE SAME
Publication number
20090057829
Publication date
Mar 5, 2009
Rohm Co., Ltd.
Nobuaki Umeki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Sensor signal detection device
Publication number
20060125528
Publication date
Jun 15, 2006
ROHM CO., LTD.
Nobuaki Umeki
B60 - VEHICLES IN GENERAL
Information
Patent Application
Sensor signal detection device
Publication number
20050012632
Publication date
Jan 20, 2005
ROHM CO., LTD.
Nobuaki Umeki
B60 - VEHICLES IN GENERAL
Information
Patent Application
Semiconductor integrated device
Publication number
20040263145
Publication date
Dec 30, 2004
ROHM CO., LTD.
Nobuaki Umeki
G05 - CONTROLLING REGULATING
Information
Patent Application
Switching regulator
Publication number
20040245974
Publication date
Dec 9, 2004
ROHM CO., LTD.
Hiroshi Kitani
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC