Membership
Tour
Register
Log in
Akira Maruyama
Follow
Person
Nagano-ken, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Positioning system, positioning apparatus, positioning information...
Patent number
7,408,503
Issue date
Aug 5, 2008
Seiko Epson Corporation
Akira Maruyama
G01 - MEASURING TESTING
Information
Patent Grant
Ferroelectric memory device and display drive IC
Patent number
7,190,339
Issue date
Mar 13, 2007
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Image forming apparatus, image forming system, and computer-readabl...
Patent number
7,171,131
Issue date
Jan 30, 2007
Seiko Epson Corporation
Akira Maruyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Sorting technique for recycle of device units
Patent number
7,156,234
Issue date
Jan 2, 2007
Seiko Epson Corporation
Osamu Ishibashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming system and image forming apparatus
Patent number
7,113,728
Issue date
Sep 26, 2006
Seiko Epson Corporation
Masahiro Owa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and image forming system
Patent number
7,092,653
Issue date
Aug 15, 2006
Seiko Epson Corporation
Ken Yoshizuka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Ferroelectric memory device
Patent number
7,023,720
Issue date
Apr 4, 2006
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Cartridge recycling information apparatus, corresponding method, an...
Patent number
7,013,101
Issue date
Mar 14, 2006
Seiko Epson Corporation
Akira Maruyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Ferroelectric memory device
Patent number
6,972,984
Issue date
Dec 6, 2005
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Ferroelectric memory device
Patent number
6,927,994
Issue date
Aug 9, 2005
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Ferroelectric memory device with an equalization circuit connected...
Patent number
6,862,236
Issue date
Mar 1, 2005
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Non-volatile semiconductor integrated circuit
Patent number
6,771,559
Issue date
Aug 3, 2004
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
DATA STORAGE METHOD FOR SEMICONDUCTOR INTEGRATED CIRCUIT, SEMICONDU...
Patent number
6,671,199
Issue date
Dec 30, 2003
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor integrated circuit
Patent number
6,639,445
Issue date
Oct 28, 2003
Seiko Epson Corporation
Akira Maruyama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Non-volatile semiconductor integrated circuit
Patent number
6,606,268
Issue date
Aug 12, 2003
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
METHOD FOR SUPPLYING REFERENCE POTENTIAL TO SENSE AMPLIFIER CIRCUIT...
Patent number
6,498,743
Issue date
Dec 24, 2002
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
METHOD FOR CONTROLLING RE-WRITING OPERATION FOR MEMORY CELL IN SEMI...
Patent number
6,411,541
Issue date
Jun 25, 2002
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor device and electronic apparatus
Patent number
6,377,494
Issue date
Apr 23, 2002
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor memory device, semiconductor device, and electronic a...
Patent number
6,178,121
Issue date
Jan 23, 2001
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Bus-line drive circuit and semiconductor storage device comprising...
Patent number
5,808,956
Issue date
Sep 15, 1998
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Nonvolatile semiconductor device
Patent number
5,798,546
Issue date
Aug 25, 1998
Seiko Epson Corporation
Yukihiro Watsuji
G11 - INFORMATION STORAGE
Information
Patent Grant
Nonvolatile semiconductor storage system
Patent number
5,654,920
Issue date
Aug 5, 1997
Seiko Epson Corporation
Yukihiro Watsuji
G11 - INFORMATION STORAGE
Information
Patent Grant
Residual recording material amount detector for laser printer
Patent number
5,635,972
Issue date
Jun 3, 1997
Seiko Epson Corporation
Akira Maruyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Nonvolatile semiconductor storage system
Patent number
5,574,686
Issue date
Nov 12, 1996
Seiko Epson Corporation
Yukihiro Watsuji
G11 - INFORMATION STORAGE
Information
Patent Grant
Nonvolatile semiconductor system with automatic over erase protection
Patent number
5,483,485
Issue date
Jan 9, 1996
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Nonvolatile semiconductor device to erase with a varying potential...
Patent number
5,475,249
Issue date
Dec 12, 1995
Seiko Epson Corporation
Yukihiro Watsuji
G11 - INFORMATION STORAGE
Information
Patent Grant
Nonvolatile semiconductor system
Patent number
5,463,587
Issue date
Oct 31, 1995
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Nonvolatile semiconductor storage system
Patent number
5,432,738
Issue date
Jul 11, 1995
Seiko Epson Corporation
Yukihiro Watsuji
G11 - INFORMATION STORAGE
Information
Patent Grant
Non-volatile semiconductor device
Patent number
5,426,611
Issue date
Jun 20, 1995
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Nonvolatile semiconductor system
Patent number
5,398,204
Issue date
Mar 14, 1995
Seiko Epson Corporation
Akira Maruyama
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
ULTRASONIC PROBE AND ULTRASONIC MEASURING DEVICE
Publication number
20150126865
Publication date
May 7, 2015
SEIKO EPSON CORPORATION
Kiyoaki MURAI
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Color image forming apparatus, color image forming system, color im...
Publication number
20060238785
Publication date
Oct 26, 2006
Seiko Epson Corporation
Akira Maruyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Positioning system, positioning apparatus, positioning information...
Publication number
20060066478
Publication date
Mar 30, 2006
SEIKO EPSON CORPORATION
Akira Maruyama
G01 - MEASURING TESTING
Information
Patent Application
Cartridge recycling information apparatus, corresponding method, an...
Publication number
20050105934
Publication date
May 19, 2005
Seiko Epson Corporation
Akira Maruyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus, image forming system, and computer-readabl...
Publication number
20050078983
Publication date
Apr 14, 2005
Seiko Epson Corporation
Akira Maruyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming system and image forming apparatus
Publication number
20050041995
Publication date
Feb 24, 2005
Seiko Epson Corporation
Masahiro Owa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Information management device for image formation apparatus and inf...
Publication number
20050024667
Publication date
Feb 3, 2005
SEIKO EPSON CORORATION
Osamu Ishibashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus and image forming system
Publication number
20050013625
Publication date
Jan 20, 2005
Seiko Epson Corporation
Ken Yoshizuka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Sorting technique for recycle of device units
Publication number
20050007409
Publication date
Jan 13, 2005
Seiko Epson Corporation
Osamu Ishibashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Ferroelectric memory device
Publication number
20040213032
Publication date
Oct 28, 2004
SEIKO EPSON CORPORATION
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Application
Ferroelectric memory device
Publication number
20040213033
Publication date
Oct 28, 2004
SEIKO EPSON CORPORATION
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Application
Ferroelectric memory device
Publication number
20040213038
Publication date
Oct 28, 2004
SEIKO EPSON CORPORATION
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Application
Ferroelectric memory device and display driver IC
Publication number
20040208041
Publication date
Oct 21, 2004
SEIKO EPSON CORPORATION
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Application
Ferroelectric memory device
Publication number
20040145936
Publication date
Jul 29, 2004
SEIKO EPSON CORPORATION
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Application
Non-volatile semiconductor integrated circuit
Publication number
20030031065
Publication date
Feb 13, 2003
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Application
Non-volatile semiconductor integrated circuit
Publication number
20030033031
Publication date
Feb 13, 2003
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Application
Data storage method for semiconductor in tegrated circuit, semicond...
Publication number
20020015323
Publication date
Feb 7, 2002
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Application
Method for controlling re-writing operation for memory cell in semi...
Publication number
20020015325
Publication date
Feb 7, 2002
Akira Maruyama
G11 - INFORMATION STORAGE
Information
Patent Application
Method for supplying reference potential to sense amplifier circuit...
Publication number
20020015324
Publication date
Feb 7, 2002
Akira Maruyama
G11 - INFORMATION STORAGE