Akio Hirano

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Plastic optical element, optical scanner including the plastic opti...
- Patent number 8,873,124
- Issue date Oct 28, 2014
- Ricoh Company, Ltd.
- Go Takahashi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Molded plastic part, method for molding plastic part, and optical s...
- Patent number 8,824,035
- Issue date Sep 2, 2014
- Ricoh Company, Limited
- Takamichi Ohhashi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for manufacturing molded resin product and plastic mirror
- Patent number 5,603,871
- Issue date Feb 18, 1997
- Ricoh Company, Ltd.
- Hisaaki Koseko
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
RESIN CASTING MOLD, MOLDED RESIN PRODUCT, OPTICAL ELEMENT, OPTICAL...
- Publication number 20120063811
- Publication date Mar 15, 2012
- Takamichi Ohhashi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
MOLDED PLASTIC PART, METHOD FOR MOLDING PLASTIC PART, AND OPTICAL S...
- Publication number 20110164295
- Publication date Jul 7, 2011
- Takamichi OHHASHI
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL