Yujiro Okamoto

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Multi-output power supply device and electric apparatus using same
- Patent number 8,824,255
- Issue date Sep 2, 2014
- Rohm Co., Ltd.
- Masashi Nagasato
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Magnetic head driving circuit with protection function
- Patent number 7,839,592
- Issue date Nov 23, 2010
- Rohm Co., Ltd.
- Shingo Hokuto
- G11 - INFORMATION STORAGE
Information Patent Grant
Current limiting device and electrical device incorporating the same
- Patent number 6,573,693
- Issue date Jun 3, 2003
- Rohm Co., Ltd.
- Yujiro Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Magnetic recording apparatus with a magnetic head for writing data...
- Patent number 6,335,844
- Issue date Jan 1, 2002
- Rohm Co., Ltd.
- Yujiro Okamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic reproducing apparatus that limits distortion of an output...
- Patent number 6,304,401
- Issue date Oct 16, 2001
- Rohm Co., Ltd.
- Yujiro Okamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetically recording apparatus
- Patent number 5,739,706
- Issue date Apr 14, 1998
- Rohm Co., Ltd.
- Yujiro Okamoto
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Multi-Output Power Supply Device and Electric Apparatus Using Same
- Publication number 20110307910
- Publication date Dec 15, 2011
- Rohm Co., Ltd.
- Masashi Nagasato
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Magnetic head driving circuit, magnetic recording/reproducing devic...
- Publication number 20090135524
- Publication date May 28, 2009
- Shingo Hokuto
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Magnetic record reproducing device
- Publication number 20040252563
- Publication date Dec 16, 2004
- ROHM CO., LTD.
- Shingo Hokuto
- G11 - INFORMATION STORAGE
Information Patent Application
Electrical device
- Publication number 20020033727
- Publication date Mar 21, 2002
- ROHM CO., LTD.
- Yujiro Okamoto
- G06 - COMPUTING CALCULATING COUNTING