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Suwa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Dual frequency, optically active liquid crystal cell
Patent number
4,927,242
Issue date
May 22, 1990
Seiko Epson Corporation
Kenji Aoki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Photosensitive printing apparatus
Patent number
4,866,593
Issue date
Sep 12, 1989
Seiko Epson Corporation
Teiji Miura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Liquid crystal shutter
Patent number
4,838,657
Issue date
Jun 13, 1989
Seiko Epson Corporation
Teiji Miura
G02 - OPTICS
Information
Patent Grant
Liquid crystal cell with opaque mask for printing device
Patent number
4,810,062
Issue date
Mar 7, 1989
Seiko Epson Corporation
Kenji Aoki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Photosensitive printing apparatus
Patent number
4,727,380
Issue date
Feb 23, 1988
Seiko Epson Corporation
Teiji Miura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Electrostatic printer
Patent number
4,393,390
Issue date
Jul 12, 1983
Kabushiki Kaisha Suwa Seikosha
Kenji Aoki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Electro-photographic printer
Patent number
4,386,836
Issue date
Jun 7, 1983
Kabushiki Kaisha Suwa Seikosha
Kenji Aoki
G06 - COMPUTING CALCULATING COUNTING