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Isamu MORIWAKI
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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Coding circuit for recording data on DVD disk
Patent number
8,171,373
Issue date
May 1, 2012
Ricoh Company, Ltd.
Isamu Moriwaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Circuit and method for differential signaling receiver
Patent number
7,907,681
Issue date
Mar 15, 2011
Ricoh Company, Ltd.
Isamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Clock and data recovery circuit and communications apparatus includ...
Patent number
7,889,816
Issue date
Feb 15, 2011
Ricoh Company, Ltd.
Isamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital PLL circuit and optical disk apparatus having digital PLL c...
Patent number
7,630,286
Issue date
Dec 8, 2009
Ricoh Company, Ltd.
Isamu Moriwaki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor device including current-driven differential driver a...
Patent number
7,622,958
Issue date
Nov 24, 2009
Ricoh Company, Ltd.
Isamu Moriwaki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Clock signal generating device and an optical disc apparatus incorp...
Patent number
7,561,503
Issue date
Jul 14, 2009
Ricoh Company, Ltd.
Isamu Moriwaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Coding circuit for recording data on DVD disk
Patent number
7,406,654
Issue date
Jul 29, 2008
Ricoh Company, Ltd.
Isamu Moriwaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Information record and playback apparatus
Patent number
7,136,341
Issue date
Nov 14, 2006
Ricoh Company, Ltd.
Isamu Moriwaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disk apparatus
Patent number
6,665,246
Issue date
Dec 16, 2003
Ricoh Company, Ltd.
Isamu Moriwaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Information record and playback apparatus
Patent number
6,594,215
Issue date
Jul 15, 2003
Ricoh Company Ltd.
Isamu Moriwaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Data processing apparatus using paged buffer memory for efficiently...
Patent number
6,216,201
Issue date
Apr 10, 2001
Ricoh Company, Ltd.
Keitaro Ado
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical pickup apparatus
Patent number
5,088,078
Issue date
Feb 11, 1992
Ricoh Company, Ltd.
Isamu Moriwaki
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
CODING CIRCUIT FOR RECORDING DATA ON DVD DISK
Publication number
20080250306
Publication date
Oct 9, 2008
RICOH COMPANY, LTD.
Isamu MORIWAKI
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
CLOCK AND DATA RECOVERY CIRCUIT AND COMMUNICATIONS APPARATUS INCLUD...
Publication number
20080226009
Publication date
Sep 18, 2008
Isamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Circuit and method for differential signaling receiver
Publication number
20080165902
Publication date
Jul 10, 2008
Isamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Semiconductor device including current-driven differential driver a...
Publication number
20080018363
Publication date
Jan 24, 2008
Isamu Moriwaki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Digital PLL circuit and optical disk apparatus having digital PLL c...
Publication number
20070172014
Publication date
Jul 26, 2007
Isamu Moriwaki
H03 - BASIC ELECTRONIC CIRCUITRY