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Suwa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical device and projector
Patent number
7,270,418
Issue date
Sep 18, 2007
Seiko Epson Corporation
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical device and projector
Patent number
7,226,171
Issue date
Jun 5, 2007
Seiko Epson Corporation
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical modulator holder optical device and projector
Patent number
7,216,987
Issue date
May 15, 2007
Seiko Epson Corporation
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical modulator, optical device and projector
Patent number
7,213,925
Issue date
May 8, 2007
Seiko Epson Corporation
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical device and projector
Patent number
7,192,143
Issue date
Mar 20, 2007
Seiko Epson Corporation
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical modulator holder, optical device, and projector
Patent number
7,150,543
Issue date
Dec 19, 2006
Seiko Epson Corporation
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical modulator holder, optical device, and projector
Patent number
7,130,136
Issue date
Oct 31, 2006
Seiko Epson Corporation
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical device and projector
Patent number
7,085,081
Issue date
Aug 1, 2006
Seiko Epson Corporation
Motoyuki Fujimori
G02 - OPTICS
Information
Patent Grant
Optical device and projector
Patent number
7,085,034
Issue date
Aug 1, 2006
Seiko Epson Corporation
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projection display device having micro-lenses
Patent number
7,054,066
Issue date
May 30, 2006
Seiko Epson Corporation
Nobuo Shimizu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
System and method for providing a substrate having micro-lenses
Patent number
7,006,296
Issue date
Feb 28, 2006
Seiko Epson Corporation
Nobuo Shimizu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
System and method for providing a substrate having micro-lenses
Patent number
6,850,368
Issue date
Feb 1, 2005
Seiko Epson Corporation
Nobuo Shimizu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Light-selective prism, projection display apparatus using the same,...
Patent number
6,690,521
Issue date
Feb 10, 2004
Seiko Epson Corporation
Toshiaki Hashizume
G02 - OPTICS
Information
Patent Grant
Manufacturing method for polarizing conversion elements
Patent number
6,669,797
Issue date
Dec 30, 2003
Seiko Epson Corporation
Masami Murata
G02 - OPTICS
Information
Patent Grant
System and method for providing a substrate having micro-lenses
Patent number
6,618,200
Issue date
Sep 9, 2003
Seiko Epson Corporation
Nobuo Shimizu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Manufacturing method of polarization conversion elements
Patent number
6,436,214
Issue date
Aug 20, 2002
Seiko Epson Corporation
Masami Murata
G02 - OPTICS
Information
Patent Grant
Light-selective prism, projection display apparatus using the same,...
Patent number
6,411,449
Issue date
Jun 25, 2002
Seiko Epson Corporation
Toshiaki Hashizume
G02 - OPTICS
Information
Patent Grant
Projector using a light-selective prism
Patent number
6,342,971
Issue date
Jan 29, 2002
Seiko Epson Corporation
Toshiaki Hashizume
G02 - OPTICS
Information
Patent Grant
Method for producing a liquid crystal panel
Patent number
6,195,149
Issue date
Feb 27, 2001
Seiko Epson Corporation
Takumi Kodera
G02 - OPTICS
Information
Patent Grant
Driving circuit for liquid crystal electro-optical device
Patent number
4,560,982
Issue date
Dec 24, 1985
Kabushiki Kaisha Suwa Seikosha
Tomio Sonehara
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Multi-alarm electronic watch
Patent number
4,379,641
Issue date
Apr 12, 1983
Kabushiki Kaisha Suwa Seikosha
Shuji Maezawa
G04 - HOROLOGY
Information
Patent Grant
Liquid crystal matrix display
Patent number
4,378,557
Issue date
Mar 29, 1983
Kabushiki Kaisha Suwa Seikosha
Masami Murata
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electronic timepiece
Patent number
4,250,523
Issue date
Feb 10, 1981
Kabushiki Kaisha Suwa Seikosha
Masami Murata
G04 - HOROLOGY
Information
Patent Grant
Electronic timepiece
Patent number
4,233,681
Issue date
Nov 11, 1980
Kabushiki Kaisha Suwa Seikosha
Masami Murata
G04 - HOROLOGY
Patents Applications
last 30 patents
Information
Patent Application
Projector
Publication number
20060187417
Publication date
Aug 24, 2006
SEIKO EPSON CORPORATION
Koichi Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PROJECTION DISPLAY DEVICE HAVING MICRO-LENSES
Publication number
20060077560
Publication date
Apr 13, 2006
SEIKO EPSON CORPORATION
Nobuo Shimizu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Optical modulator holder, optical device, and projector
Publication number
20050213228
Publication date
Sep 29, 2005
SEIKO EPSON CORPORATION
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical device and projector
Publication number
20050213227
Publication date
Sep 29, 2005
SEIKO EPSON CORPORATION
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical modulator holder optical device and projector
Publication number
20050195460
Publication date
Sep 8, 2005
SEIKO EPSON CORPORATION
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical modulator, optical device and projector
Publication number
20050185146
Publication date
Aug 25, 2005
SEIKO EPSON CORPORATION
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical device and projector
Publication number
20050185245
Publication date
Aug 25, 2005
SEIKO EPSON CORPORATION
Motoyuki Fujimori
G02 - OPTICS
Information
Patent Application
Optical device and projector
Publication number
20050185142
Publication date
Aug 25, 2005
SEIKO EPSON CORPORATION
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical device and projector
Publication number
20050185244
Publication date
Aug 25, 2005
SEIKO EPSON CORPORATION
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical device and projector
Publication number
20050168703
Publication date
Aug 4, 2005
SEIKO EPSON CORPORATION
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical modulator holder, optical device, and projector
Publication number
20050162760
Publication date
Jul 28, 2005
SEIKO EPSON CORPORATION
Motoyuki Fujimori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for providing a substrate having micro-lens
Publication number
20050088751
Publication date
Apr 28, 2005
SEIKO EPSON CORPORATION
Nobuo Shimizu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
System and method for providing a substrate having micro-lenses
Publication number
20040008417
Publication date
Jan 15, 2004
SEIKO EPSON CORPORATION
Nobuo Shimizu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Manufacturing method for polarizing conversion elements
Publication number
20020096250
Publication date
Jul 25, 2002
SEIKO EPSON CORPORATION
Masami Murata
G02 - OPTICS
Information
Patent Application
Light-selective prism, projection display apparatus using the same,...
Publication number
20020080502
Publication date
Jun 27, 2002
SEIKO EPSON CORPORATION
Toshiaki Hashizume
G02 - OPTICS
Information
Patent Application
System and method for providing a substrate having micro-lenses
Publication number
20020027715
Publication date
Mar 7, 2002
Seiko Epson Corporation
Nobuo Shimizu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL