gates on the central optical axis of lenses

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CPC
B29C2045/0029

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BPERFORMING OPERATIONS TRANSPORTING B29Plastic substance processing B29CSHAPING OR JOINING OF PLASTICS SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL AFTER-TREATMENT OF THE SHAPED PRODUCTS

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B29C2045/0029gates on the central optical axis of lenses

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Patents Grantslast 30 patents

Information Patent Grant
Resin-molded prism and mold for the same
- Patent number 6,707,622
- Issue date Mar 16, 2004
- Canon Kabushiki Kaisha
- Takahiro Tominaga
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Apparatus and method for producing center gated lens molds for cont...
- Patent number 5,716,540
- Issue date Feb 10, 1998
- Johnson & Johnson Vision Products, Inc.
- Thomas A. Matiacio
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Resin-molded prism and mold for the same
- Publication number 20020030900
- Publication date Mar 14, 2002
- Takahiro Tominaga
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Method and device for producing thick lenses of plastic material
- Publication number 20020000679
- Publication date Jan 3, 2002
- Andrea Fallini
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL