Hiroyasu MORIKAWA

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Filter circuit and optical disk device including the same
- Patent number 8,350,619
- Issue date Jan 8, 2013
- Panasonic Corporation
- Hiroyasu Morikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Variable transconductance circuit
- Patent number 7,911,274
- Issue date Mar 22, 2011
- Panasonic Corporation
- Hiroyasu Morikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Variable transconductance circuit
- Patent number 7,486,139
- Issue date Feb 3, 2009
- Panasonic Corporation
- Hiroyasu Morikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Wobble signal extraction circuit and optical disk device
- Patent number 7,317,667
- Issue date Jan 8, 2008
- Matsushita Electric Industrial Co., Ltd.
- Youichi Kanekami
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
RECTIFIER CIRCUIT, AND CONTACTLESS POWER SUPPLY DEVICE
- Publication number 20170040842
- Publication date Feb 9, 2017
- Panasonic Intellectual Property Management Co., Ltd.
- HIROYASU MORIKAWA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FILTER CIRCUIT AND OPTICAL DISK DEVICE INCLUDING THE SAME
- Publication number 20120098574
- Publication date Apr 26, 2012
- PANASONIC CORPORATION
- Hiroyasu MORIKAWA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
VARIABLE TRANSCONDUCTANCE CIRCUIT
- Publication number 20090015330
- Publication date Jan 15, 2009
- Matsushita Electric Industrial Co., Ltd.
- Hiroyasu Morikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Variable transconductance circuit
- Publication number 20070018725
- Publication date Jan 25, 2007
- Hiroyasu Morikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Wobble signal extraction circuit and optical disk device
- Publication number 20060256671
- Publication date Nov 16, 2006
- Youichi Kanekami
- G11 - INFORMATION STORAGE
Information Patent Application
Wobble signal extracting circuit and optical disk drive
- Publication number 20050147016
- Publication date Jul 7, 2005
- MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- Hiroyasu Morikawa
- G11 - INFORMATION STORAGE