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Industry
CPC
B29C2045/2657
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Parent Industries
B
PERFORMING OPERATIONS TRANSPORTING
B29
Plastic substance processing
B29C
SHAPING OR JOINING OF PLASTICS SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL AFTER-TREATMENT OF THE SHAPED PRODUCTS
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B29C2045/2657
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Patents Grants
last 30 patents
Information
Patent Grant
Air blowing method for mold for a disk molding and a mold therefor
Patent number
6,174,487
Issue date
Jan 16, 2001
Kabushiki Kaisha Meiki Seisakusho
Ikuo Asai
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Disc table for disc recording/reproducing apparatus and method for...
Patent number
6,038,206
Issue date
Mar 14, 2000
Sony Corporation
Hiroshi Mukawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Mold device for fabricating disc substrate
Patent number
5,427,520
Issue date
Jun 27, 1995
Sony Corporation
Jun Shimizu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for molding a formatted substrate for an optical disk
Patent number
5,171,585
Issue date
Dec 15, 1992
Daicel Chemical Industries, Ltd.
Yoshio Onisawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for molding a formatted substrate for an optical disk
Patent number
5,106,553
Issue date
Apr 21, 1992
Daicel Chemical Industries, Ltd.
Yoshio Onisawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Injection molding die apparatus for use in the production of substr...
Patent number
5,018,962
Issue date
May 28, 1991
Sumitomo Heavy Industries, Ltd.
Takehiko Kitamura
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Mold for molding optical disk base
Patent number
4,979,891
Issue date
Dec 25, 1990
Sumitomo Heavy Industries, Ltd.
Takehiko Kitamura
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Injection mold for an optical disk
Patent number
4,741,689
Issue date
May 3, 1988
Daicel Chemical Industries, Ltd.
Yoshio Onizawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for forming articles by injection molding
Patent number
4,707,321
Issue date
Nov 17, 1987
Sony Corporation
Takashi Segawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents