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Ryoji Kojima
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Ibaraki, JP
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last 30 patents
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Patent Grant
Apparatus for printing on both sides of an image printing medium by...
Patent number
6,032,015
Issue date
Feb 29, 2000
Hitachi Koki Co, Ltd.
Takao Umeda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Apparatus for printing images on both sides of an image printing me...
Patent number
5,848,323
Issue date
Dec 8, 1998
Hitachi Koki Co., Ltd.
Takao Umeda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image recording method and apparatus
Patent number
5,144,343
Issue date
Sep 1, 1992
Hitachi, Ltd.
Sayoko Oba
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Printing machine
Patent number
5,021,810
Issue date
Jun 4, 1991
Hitachi, Ltd.
Katsumi Muroi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Electrostatic recording head, image recording apparatus, developing...
Patent number
4,977,415
Issue date
Dec 11, 1990
Hitachi, Ltd.
Sayoko Oba
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method and apparatus for image recording
Patent number
4,777,499
Issue date
Oct 11, 1988
Hitachi, Ltd.
Kenji Okuna
B82 - NANO-TECHNOLOGY