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Hidemi Tajima
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Nishitama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Press molding apparatus
Patent number
7,013,676
Issue date
Mar 21, 2006
Hoya Corporation
Tadayuki Fujimoto
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Press molding apparatus and press molding method
Patent number
6,918,267
Issue date
Jul 19, 2005
Hoya Corporation
Shinichiro Hirota
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Light polarizing glass containing copper particles and process for...
Patent number
6,313,947
Issue date
Nov 6, 2001
Hoya Corporation
Takeshi Takahashi
G02 - OPTICS
Information
Patent Grant
Process for the production of polarizing glass
Patent number
6,167,727
Issue date
Jan 2, 2001
Hoya Corporation
Hidemi Tajima
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Polarizing glass and production process thereof
Patent number
5,886,820
Issue date
Mar 23, 1999
Hoya Corporation
Hidemi Tajima
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Process for the production of polarizing glass
Patent number
5,840,096
Issue date
Nov 24, 1998
Hoya Corporation
Hidemi Tajima
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Composite slab laser medium and a laser employing the composite sla...
Patent number
5,239,549
Issue date
Aug 24, 1993
Hoya Corporation
Hidemi Tajima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Laser medium for use in a slab laser
Patent number
5,084,889
Issue date
Jan 28, 1992
Hoya Corporation
Hidemi Tajima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Laser medium for use in a composite slab type laser
Patent number
5,084,888
Issue date
Jan 28, 1992
Hoya Corporation
Hidemi Tajima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Single mode phosphate laser glass fiber
Patent number
4,871,230
Issue date
Oct 3, 1989
Hoya Corporation
Toshiharu Yamashita
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Faraday rotation single-mode optical fiber
Patent number
4,726,652
Issue date
Feb 23, 1988
Hoya Corporation
Hidemi Tajima
G02 - OPTICS
Information
Patent Grant
Optical glass
Patent number
4,481,299
Issue date
Nov 6, 1984
Hoya Corporation
Hidemi Tajima
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical glass
Patent number
4,439,530
Issue date
Mar 27, 1984
Hoya Corporation
Hidemi Tajima
C03 - GLASS MINERAL OR SLAG WOOL
Patents Applications
last 30 patents
Information
Patent Application
Press molding apparatus and method of producing a glass optical ele...
Publication number
20060090512
Publication date
May 4, 2006
Hoya Corporation
Tadayuki Fujimoto
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Press molding apparatus and press molding method
Publication number
20050218538
Publication date
Oct 6, 2005
Hoya Corporation
Shinichiro Hirota
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Press molding apparatus and press molding method
Publication number
20030102583
Publication date
Jun 5, 2003
Hoya Corporation
Shinichiro Hirota
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Press molding apparatus and method of producing a glass optical ele...
Publication number
20030033833
Publication date
Feb 20, 2003
Hoya Corporation
Tadayuki Fujimoto
C03 - GLASS MINERAL OR SLAG WOOL