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Shigeaki Omi
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Saitama, JP
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last 30 patents
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Patent Grant
Process for producing multi-component glass doped with microparticles
Patent number
5,162,054
Issue date
Nov 10, 1992
Hoya Corporation
Shigeaki Omi
G02 - OPTICS
Information
Patent Grant
Matrix glass composition for glass doped with dispersed microcrysta...
Patent number
5,134,095
Issue date
Jul 28, 1992
Hoya Corporation
Shigeaki Omi
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Process for producing glass doped with dispersed microcrystallites
Patent number
5,122,178
Issue date
Jun 16, 1992
Hoya Corporation
Shigeaki Omi
G02 - OPTICS
Information
Patent Grant
Method of making multi-component glass doped with cadmium chalcogen...
Patent number
5,098,460
Issue date
Mar 24, 1992
Hoya Corporation
Shigeaki Omi
G02 - OPTICS
Information
Patent Grant
Process for producing glass doped with dispersed mirocrystallites
Patent number
5,043,003
Issue date
Aug 27, 1991
Hoya Corporation
Shigeaki Omi
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of producing gradient-index lens
Patent number
4,902,330
Issue date
Feb 20, 1990
Hoya Corporation
Hiroyuki Sakai
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of adjusting refractive index distribution lenses
Patent number
4,844,724
Issue date
Jul 4, 1989
Hoya Corporation
Hiroyuki Sakai
G02 - OPTICS
Information
Patent Grant
Lenses having plural contiguous refractive index distribution subst...
Patent number
4,844,589
Issue date
Jul 4, 1989
Hoya Corporation
Yoshiyuki Asahara
G02 - OPTICS
Information
Patent Grant
Gradient refractive index type anamorphic planar microlens and meth...
Patent number
4,805,997
Issue date
Feb 21, 1989
Hoya Corporation
Yoshiyuki Asahara
G02 - OPTICS
Information
Patent Grant
Process for producing transparent glass product having refractive i...
Patent number
4,767,435
Issue date
Aug 30, 1988
Hoya Corporation
Shigeaki Omi
C03 - GLASS MINERAL OR SLAG WOOL