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Patents Grants
last 30 patents
Information
Patent Grant
Transparent functional membrane containing functional ultrafine par...
Patent number
6,476,969
Issue date
Nov 5, 2002
Dai Nippon Printing Co., Ltd.
Motohiro Oka
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Optical functional materials and process for producing the same
Patent number
6,340,404
Issue date
Jan 22, 2002
Dai Nippon Printing Co., Ltd.
Motohiro Oka
G02 - OPTICS
Information
Patent Grant
Transparent functional membrane containing functional ultrafine par...
Patent number
6,335,832
Issue date
Jan 1, 2002
Dai Nippon Printing Co., Ltd.
Motohiro Oka
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Optical functional materials and process for producing the same
Patent number
6,064,524
Issue date
May 16, 2000
Dai Nippon Printing Co., Ltd.
Motohiro Oka
G02 - OPTICS
Information
Patent Grant
Transparent functional membrane containing functional ultrafine par...
Patent number
5,976,297
Issue date
Nov 2, 1999
Dai Nippon Printing Co., Ltd.
Motohiro Oka
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Optical functional materials and process for producing the same
Patent number
5,909,314
Issue date
Jun 1, 1999
Dai Nippon Printing Co., Ltd.
Motohiro Oka
G02 - OPTICS
Information
Patent Grant
Transparent functional membrane containing functional ultrafine par...
Patent number
5,747,152
Issue date
May 5, 1998
Dai Nippon Printing Co., Ltd.
Motohiro Oka
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
Transparent functional membrane containing functional ultrafine par...
Publication number
20020051295
Publication date
May 2, 2002
DAI NIPPON PRINTING CO. , LTD.
Motohiro Oka
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL