Masayuki Tomida

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing optical glass element
- Patent number 5,735,920
- Issue date Apr 7, 1998
- Canon Kabushiki Kaisha
- Masaki Omori
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Press-molded optical element
- Patent number 5,604,549
- Issue date Feb 18, 1997
- Canon Kabushiki Kaisha
- Masashi Mashige
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Mold for optical element and a method of molding optical element
- Patent number 5,435,818
- Issue date Jul 25, 1995
- Canon Kabushiki Kaisha
- Masashi Mashige
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for forming an optical element
- Patent number 5,344,476
- Issue date Sep 6, 1994
- Canon Kabushiki Kaisha
- Masayuki Tomida
- C03 - GLASS MINERAL OR SLAG WOOL