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Yasuo Yamanaka
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Patents Grants
last 30 patents
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
Flame retardant resin composition and molded product
Patent number
8,796,363
Issue date
Aug 5, 2014
Ricoh Company, Ltd.
Tadakatsu Harada
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Plastic article, method of shaping plastic article, and optical sca...
Patent number
8,749,863
Issue date
Jun 10, 2014
Ricoh Company, Ltd.
Takamichi Ohhashi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Fire retardant resin composition
Patent number
8,481,618
Issue date
Jul 9, 2013
Ricoh Company, Ltd.
Tadakatsu Harada
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Copolymer resin composition, molded product, and method of manufact...
Patent number
8,445,628
Issue date
May 21, 2013
Ricoh Company, Ltd.
Yasuo Yamanaka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Optical element, optical scanning device, and image forming apparatus
Patent number
7,872,813
Issue date
Jan 18, 2011
Ricoh Company, Ltd.
Tomonori Kimura
G02 - OPTICS
Information
Patent Grant
Apparatus and method for molding object with enhanced transferabili...
Patent number
7,794,643
Issue date
Sep 14, 2010
Ricoh Company, Ltd.
Jun Watanabe
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Scanning and imaging optical system, optical scanner, and image for...
Patent number
7,525,710
Issue date
Apr 28, 2009
Ricoh Company, Ltd.
Hiromichi Atsuumi
G02 - OPTICS
Information
Patent Grant
Method and mold assembly for producing a molded object
Patent number
7,135,139
Issue date
Nov 14, 2006
Ricoh Company, Ltd.
Toshihiro Kanematsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Plastic molding and a method and a mold assembly for producing the...
Patent number
6,919,120
Issue date
Jul 19, 2005
Ricoh Company, Ltd.
Yasuo Yamanaka
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Plastic optical element, plastic optical element producing method a...
Patent number
6,893,586
Issue date
May 17, 2005
Ricoh Company, Ltd.
Yasuo Yamanaka
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and apparatus for manufacturing plastic optical element and...
Patent number
6,875,380
Issue date
Apr 5, 2005
Ricoh Company, Ltd.
Hidenobu Kishi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
INJECTION MOLD, A PRODUCTION METHOD THEREOF, A PRODUCTION SYSTEM TH...
Patent number
6,810,303
Issue date
Oct 26, 2004
Ricoh Company, Ltd.
Eiri Sagae
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Plastic molding and method and apparatus for producing the same by...
Patent number
6,793,868
Issue date
Sep 21, 2004
Ricoh Company, Ltd.
Toshihiro Kanematsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and mold assembly for producing a molded object
Patent number
6,702,565
Issue date
Mar 9, 2004
Ricoh Company, Ltd.
Toshihiro Kanematsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Plasting molding and method and apparatus for producing the same by...
Patent number
6,620,486
Issue date
Sep 16, 2003
Ricoh Company, Ltd.
Toshihiro Kanematsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Plastic molded article or product and method and apparatus for prod...
Patent number
6,565,346
Issue date
May 20, 2003
Ricoh Company, Ltd.
Toshihiro Kanematsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and apparatus for manufacturing plastic optical element and...
Patent number
6,465,610
Issue date
Oct 15, 2002
Ricoh Company, Ltd.
Hidenobu Kishi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Plastic molding and method and apparatus for producing the same by...
Patent number
6,287,504
Issue date
Sep 11, 2001
Ricoh Company, Ltd.
Toshihiro Kanematsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
FLAME RETARDANT RESIN COMPOSITION AND MOLDED PRODUCT
Publication number
20130317138
Publication date
Nov 28, 2013
RICOH COMPANY ,LTD.
Tadakatsu Harada
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PLASTIC ARTICLE, METHOD OF SHAPING PLASTIC ARTICLE, AND OPTICAL SCA...
Publication number
20120013964
Publication date
Jan 19, 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
Information
Patent Application
FIRE RETARDANT RESIN COMPOSITION
Publication number
20110105649
Publication date
May 5, 2011
Tadakatsu Harada
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
COPOLYMER RESIN COMPOSITION, MOLDED PRODUCT, AND METHOD OF MANUFACT...
Publication number
20110003919
Publication date
Jan 6, 2011
RICOH COMPANY, LTD.
Yasuo YAMANAKA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
OPTICAL ELEMENT, OPTICAL SCANNING DEVICE, AND IMAGE FORMING APPARATUS
Publication number
20080049287
Publication date
Feb 28, 2008
Tomonori KIMURA
G02 - OPTICS
Information
Patent Application
Apparatus and method for molding object with enhanced transferabili...
Publication number
20070231575
Publication date
Oct 4, 2007
Jun Watanabe
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Scanning and imaging optical system, optical scanner, and image for...
Publication number
20050280884
Publication date
Dec 22, 2005
Hiromichi Atsuumi
G02 - OPTICS
Information
Patent Application
Method and mold assembly for producing a molded object
Publication number
20040145090
Publication date
Jul 29, 2004
Toshihiro Kanematsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Injection mold, a production method thereof, a production system th...
Publication number
20030018408
Publication date
Jan 23, 2003
Eiri Sagae
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Method and apparatus for manufacturing plastic optical element and...
Publication number
20020158355
Publication date
Oct 31, 2002
Hidenobu Kishi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
PLASTIC MOLDING AND A METHOD AND A MOLD ASSEMBLY FOR PRODUCING THE...
Publication number
20020160152
Publication date
Oct 31, 2002
YASUO YAMANAKA
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Plastic optical element, plastic optical element producing method a...
Publication number
20020036747
Publication date
Mar 28, 2002
Yasuo Yamanaka
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Plastic molding and method and apparatus for producing the same by...
Publication number
20010031361
Publication date
Oct 18, 2001
RICOH COMPANY, LTD.
Toshihiro Kanematsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Plastic molding and method and apparatus for producing the same by...
Publication number
20010028134
Publication date
Oct 11, 2001
RICOH COMPANY, LTD.
Toshihiro Kanematsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Plasting molding and method and apparatus for producing the same by...
Publication number
20010028942
Publication date
Oct 11, 2001
RICOH COMPANY, LTD.
Toshihiro Kanematsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL