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Kunihiro Tamahashi
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Hitachi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method, a bubble generating nozzle, and an apparatus for generating...
Patent number
10,293,309
Issue date
May 21, 2019
SIGMA-TECHNOLOGY INC.
Yoshiaki Tachibana
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Ink-jet printer head and a manufacturing method thereof
Patent number
7,325,902
Issue date
Feb 5, 2008
Ricoh Printing Systems, Ltd.
Kunihiro Tamahashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Ink jet recording method
Patent number
7,290,873
Issue date
Nov 6, 2007
Ricoh Printing Systems, Ltd.
Akemi Ouchi
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Three-dimensional laminating molding device
Patent number
7,104,773
Issue date
Sep 12, 2006
Ricoh Printing Systems, Ltd.
Tsutomu Maekawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method of manufacturing ink jet head
Patent number
6,918,180
Issue date
Jul 19, 2005
Ricoh Printing Systems, Ltd.
Tomohiko Koda
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Inkjet recording device and ink supplying device employed thereby
Patent number
6,814,432
Issue date
Nov 9, 2004
Hitachi Printing Solutions, Ltd.
Takahiro Yamada
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Inkjet print head and method for making the same
Patent number
6,786,577
Issue date
Sep 7, 2004
Hitachi Printing Solutions, Ltd.
Kunihiro Tamahashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Method for adhering together members molded from synthetic resin
Patent number
6,074,510
Issue date
Jun 13, 2000
Hitachi Koki Co., Ltd.
Yoshiaki Tachibana
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Electrophotographic photoreceptor with protruding inorganic insulat...
Patent number
5,252,418
Issue date
Oct 12, 1993
Hitachi, Ltd.
Fuminori Ishikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive element comprising a protective...
Patent number
5,204,202
Issue date
Apr 20, 1993
Hitachi, Ltd.
Fuminori Ishikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method and apparatus of optical modulation using superconductive ox...
Patent number
5,110,792
Issue date
May 5, 1992
Hitachi, Ltd.
Takahiro Nakayama
G02 - OPTICS
Information
Patent Grant
Electrophotographic member containing a fluorine-containing lubrica...
Patent number
5,073,466
Issue date
Dec 17, 1991
Hitachi, Ltd.
Fuminori Ishikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method of annealing electrophotographic photosensitive device
Patent number
4,912,008
Issue date
Mar 27, 1990
Hitachi, Ltd.
Megumi Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic sensitized body having a diffusion blocking layer
Patent number
4,804,606
Issue date
Feb 14, 1989
Hitachi, Ltd.
Toshiyuki Ohno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Multilayered electrophotographic photosensitive member
Patent number
4,791,040
Issue date
Dec 13, 1988
Hitachi Ltd.
Makoto Fujikura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive material having thin amorphous s...
Patent number
4,430,404
Issue date
Feb 7, 1984
Hitachi, Ltd.
Akira Hosoya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic plate having an age-hardened aluminum substrate...
Patent number
4,405,703
Issue date
Sep 20, 1983
Hitachi, Ltd.
Shigeharu Onuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
METHOD, A BUBBLE GENERATING NOZZLE, AND AN APPARATUS FOR GENERATING...
Publication number
20150273408
Publication date
Oct 1, 2015
SIGMA-TECHNOLOGY INC.
Yoshiaki Tachibana
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Ink jet recording method
Publication number
20050208233
Publication date
Sep 22, 2005
Ricoh Printing Systems, Ltd.
Akemi Ouchi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Ink-jet printer head and a manufacturing method thereof
Publication number
20050088485
Publication date
Apr 28, 2005
Kunihiro Tamahashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Support material for three-dimensional laminating molding
Publication number
20050053798
Publication date
Mar 10, 2005
Tsutomu Maekawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Three-dimensional laminating molding device
Publication number
20040175451
Publication date
Sep 9, 2004
Tsutomu Maekawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Inkjet recording device and ink supplying device employed thereby
Publication number
20030227524
Publication date
Dec 11, 2003
Takahiro Yamada
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Inkjet print head and method for making the same
Publication number
20030076386
Publication date
Apr 24, 2003
Hitachi Koki Co., Ltd.
Kunihiro Tamahashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Ink jet printer and ink composition therefor
Publication number
20020171725
Publication date
Nov 21, 2002
Akemi Ouchi
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Method of manufacturing ink jet head
Publication number
20020073543
Publication date
Jun 20, 2002
Tomohiko Koda
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS