Hiroshi Asami

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of injection molding plastic lens
- Patent number RE38617
- Issue date Oct 12, 2004
- Hoya Corporation
- Kiyohiro Saito
- 264 - Plastic and nonmetallic article shaping or treating: processes
Information Patent Grant
Method of manufacturing lens, injection mold for molding of lens, a...
- Patent number 6,210,610
- Issue date Apr 3, 2001
- Hoya Corporation
- Kiyohiro Saito
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of injection molding plastic lens
- Patent number 6,156,242
- Issue date Dec 5, 2000
- Hoya Corporation
- Kiyohiro Saito
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Injection compression molding method of a spectacle lens and a spec...
- Patent number 5,972,252
- Issue date Oct 26, 1999
- Hoya Corporation
- Kiyohiro Saito
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Lens injection-compression-molding method
- Patent number 5,948,327
- Issue date Sep 7, 1999
- Hoya Corporation
- Kiyohiro Saito
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL