Koike; Yasuhiro

Organization

Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Surface light source device
- Patent number 6,152,570
- Issue date Nov 28, 2000
- Enplas Corporation
- Kazuaki Yokoyama
- G02 - OPTICS
Information Patent Grant
Light regulator and surface light source device
- Patent number 6,104,854
- Issue date Aug 15, 2000
- Enplas Corporation
- Kayoko Masaki
- G02 - OPTICS
Information Patent Grant
Surface light source device
- Patent number 5,899,552
- Issue date May 4, 1999
- Enplas Corporation
- Kazuaki Yokoyama
- G02 - OPTICS
Information Patent Grant
Surface light source device and liquid crystal display
- Patent number 5,887,964
- Issue date Mar 30, 1999
- Nitto Jushi Kogyo Kabushiki Kaisha
- Eizaburo Higuchi
- G02 - OPTICS
Information Patent Grant
Surface light source device of side light type
- Patent number 5,810,464
- Issue date Sep 22, 1998
- Enplas Corporation
- Tsuyoshi Ishikawa
- G02 - OPTICS
Information Patent Grant
Graded-refractive-index optical plastic material and method for its...
- Patent number 5,760,139
- Issue date Jun 2, 1998
- Koike; Yasuhiro
- Yasuhiro Koike
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of manufacturing optical transmission medium from synthetic...
- Patent number 5,382,448
- Issue date Jan 17, 1995
- Koike; Yasuhiro
- Yasuhiro Koike
- G02 - OPTICS
Information Patent Grant
Method of manufacturing a graded optical transmission medium made o...
- Patent number 5,253,323
- Issue date Oct 12, 1993
- Koike; Yasuhiro
- Yasuhiro Koike
- G02 - OPTICS

Koike; Yasuhiro

Organization

Patents Grantslast 30 patents

Surface light source device

Light regulator and surface light source device

Surface light source device

Surface light source device and liquid crystal display

Surface light source device of side light type

Graded-refractive-index optical plastic material and method for its...

Method of manufacturing optical transmission medium from synthetic...

Method of manufacturing a graded optical transmission medium made o...

Patents Applicationslast 30 patents

Trademarklast 30 trademarks