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Atsuo Yamaguchi
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Data processing apparatus
Patent number
9,092,619
Issue date
Jul 28, 2015
Renesas Electronics Corporation
Hirokazu Tsuruta
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Random number generator with ring oscillation circuit
Patent number
9,052,975
Issue date
Jun 9, 2015
Renesas Electronics Corporation
Kazuhiko Fukushima
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor device
Patent number
8,848,459
Issue date
Sep 30, 2014
Renesas Electronics Corporation
Kazuhiko Fukushima
G11 - INFORMATION STORAGE
Information
Patent Grant
Encoding/decoding circuit
Patent number
8,619,991
Issue date
Dec 31, 2013
Renesas Electronics Corporation
Shigenori Miyauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Encoding/decoding circuit
Patent number
8,559,634
Issue date
Oct 15, 2013
Renesas Electronics Corporation
Shigenori Miyauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Random number generator with ring oscillation circuit
Patent number
8,260,835
Issue date
Sep 4, 2012
Renesas Electronics Corporation
Kazuhiko Fukushima
G11 - INFORMATION STORAGE
Information
Patent Grant
Data processing apparatus
Patent number
8,140,858
Issue date
Mar 20, 2012
Renesas Electronics Corporation
Hirokazu Tsuruta
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Encryption circuit achieving higher operation speed
Patent number
7,471,789
Issue date
Dec 30, 2008
Renesas Technology Corp.
Shigenori Miyauchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Random number generator with ring oscillation circuit
Patent number
7,424,500
Issue date
Sep 9, 2008
Renesas Technology Corp.
Kazuhiko Fukushima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Residue calculating unit immune to power analysis
Patent number
7,171,437
Issue date
Jan 30, 2007
Renesas Technology Corp.
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Non-contact IC card system and non-contact IC card
Patent number
6,747,548
Issue date
Jun 8, 2004
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Charge pump circuit
Patent number
6,107,864
Issue date
Aug 22, 2000
Mitsubishi Denki Kabushiki Kaisha
Kazuhiko Fukushima
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
PLL circuit
Patent number
5,942,926
Issue date
Aug 24, 1999
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Non-contact IC card with phase variation detector
Patent number
5,874,725
Issue date
Feb 23, 1999
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Non-contact IC card including phase-locked loop circuitry
Patent number
5,831,257
Issue date
Nov 3, 1998
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Non-contact IC card with antenna switching circuit
Patent number
5,801,372
Issue date
Sep 1, 1998
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Non-contact IC card including antenna circuit with adjustable reson...
Patent number
5,698,838
Issue date
Dec 16, 1997
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Semiconductor integrated circuit
Patent number
5,594,692
Issue date
Jan 14, 1997
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor integrated circuit
Patent number
5,535,160
Issue date
Jul 9, 1996
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor integrated circuit and IC card using the same
Patent number
5,517,460
Issue date
May 14, 1996
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Non-contact IC card detecting power-on signal by receiving external...
Patent number
5,432,328
Issue date
Jul 11, 1995
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Non-contact IC card having an active attenuation circuit
Patent number
5,396,056
Issue date
Mar 7, 1995
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Semiconductor integrated circuit including a substrate having a mem...
Patent number
5,375,083
Issue date
Dec 20, 1994
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
IC card with clock signal input control
Patent number
5,365,047
Issue date
Nov 15, 1994
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Non-contact IC card which actively attenuates its resonance circuit...
Patent number
5,308,968
Issue date
May 3, 1994
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Microcomputer circuit for attenuating oscillations in a resonant ci...
Patent number
5,226,167
Issue date
Jul 6, 1993
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Reference voltage regulator semiconductor integrated circuit
Patent number
5,160,856
Issue date
Nov 3, 1992
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G05 - CONTROLLING REGULATING
Information
Patent Grant
IC card
Patent number
5,159,183
Issue date
Oct 27, 1992
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Non-contact IC card
Patent number
5,068,521
Issue date
Nov 26, 1991
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Memory device
Patent number
5,056,089
Issue date
Oct 8, 1991
Mitsubishi Denki Kabushiki Kaisha
Shigeru Furuta
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
ENCODING/DECODING CIRCUIT
Publication number
20120314858
Publication date
Dec 13, 2012
RENESAS ELECTRONICS CORPORATION
Shigenori Miyauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RANDOM NUMBER GENERATOR WITH RING OSCILLATION CIRCUIT
Publication number
20120303690
Publication date
Nov 29, 2012
Kazuhiko FUKUSHIMA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SEMICONDUCTOR DEVICE
Publication number
20120250432
Publication date
Oct 4, 2012
Renesas Electronics Corporation
Kazuhiko FUKUSHIMA
G11 - INFORMATION STORAGE
Information
Patent Application
DATA PROCESSING APPARATUS
Publication number
20120079286
Publication date
Mar 29, 2012
RENESAS ELECTRONICS CORPORATION
Hirokazu TSURUTA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ENCODING/DECODING CIRCUIT
Publication number
20110255694
Publication date
Oct 20, 2011
Renesas Electronics Corp.
Shigenori Miyauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DATA PROCESSING APPARATUS
Publication number
20090259856
Publication date
Oct 15, 2009
RENESAS TECHNOLOGY CORP.
Hirokazu Tsuruta
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
RANDOM NUMBER GENERATOR WITH RING OSCILLATION CIRCUIT
Publication number
20080313249
Publication date
Dec 18, 2008
Renesas Technology Corp.
Kazuhiko Fukushima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Encoding/decoding circuit
Publication number
20070014396
Publication date
Jan 18, 2007
Renesas Technology Corp.
Shigenori Miyauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Non-volatile memory control device capable of recovering data even...
Publication number
20050055531
Publication date
Mar 10, 2005
Renesas Technology Corp.
Kazuo Asami
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Microcomputer having security function
Publication number
20050052280
Publication date
Mar 10, 2005
RENESAS TECHNOLOGY CORP.
Kazuhiko Fukushima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Random number generator with ring oscillation circuit
Publication number
20040264233
Publication date
Dec 30, 2004
RENESAS TECHNOLOGY CORP.
Kazuhiko Fukushima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Encryption circuit achieving higher operation speed
Publication number
20040081317
Publication date
Apr 29, 2004
RENESAS TECHNOLOGY CORP.
Shigenori Miyauchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Residue calculating unit immune to power analysis
Publication number
20040064274
Publication date
Apr 1, 2004
RENESAS TECHNOLOGY CORP.
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Data encryption circuit pre-holding next data to be operated in buffer
Publication number
20020181704
Publication date
Dec 5, 2002
Mitsubishi Denki Kabushiki Kaisha
Atsuo Yamaguchi
G06 - COMPUTING CALCULATING COUNTING