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Hiroshi Kamakura
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Suwa-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Meeting system and information storage medium
Patent number
7,251,675
Issue date
Jul 31, 2007
Seiko Epson Corporation
Hiroshi Kamakura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Image display system and information storage medium
Patent number
6,839,061
Issue date
Jan 4, 2005
Seiko Epson Corporation
Hiroshi Kamakura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Projector display comprising light source units
Patent number
6,805,448
Issue date
Oct 19, 2004
Seiko Epson Corporation
Osamu Yokoyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projector display comprising light source units
Patent number
6,607,277
Issue date
Aug 19, 2003
Seiko Epson Corporation
Osamu Yokoyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Head-mounted image display device and data processing apparatus inc...
Patent number
6,320,559
Issue date
Nov 20, 2001
Seiko Epson Corporation
Masaaki Yasukawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Body mount-type information display apparatus and display method us...
Patent number
6,172,657
Issue date
Jan 9, 2001
Seiko Epson Corporation
Hiroshi Kamakura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Head-mounted image display device and data processing apparatus inc...
Patent number
5,977,935
Issue date
Nov 2, 1999
Seiko Epson Corporation
Masaaki Yasukawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Head-mounted virtual image display device having switching means en...
Patent number
5,739,797
Issue date
Apr 14, 1998
Seiko Epson Corporation
Joji Karasawa
G02 - OPTICS
Information
Patent Grant
Projection-type color display device
Patent number
4,850,685
Issue date
Jul 25, 1989
Seiko Epson Corporation
Hiroshi Kamakura
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
Projector
Publication number
20070103645
Publication date
May 10, 2007
SEIKO EPSON CORPORATION
Kesatoshi TAKEUCHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Projector display comprising light source units
Publication number
20040027545
Publication date
Feb 12, 2004
SEIKO EPSON CORPORATION
Osamu Yokoyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Head-mounted image display device and data processing apparatus inc...
Publication number
20020126066
Publication date
Sep 12, 2002
Seiko Epson Corporation
Masaaki Yasukawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
PROJECTOR DISPLAY COMPRISING LIGHT SOURCE UNITS
Publication number
20010013924
Publication date
Aug 16, 2001
OSAMU YOKOYAMA
G02 - OPTICS