Noriyuki Iwata

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Worm optical recording medium
- Patent number 8,147,942
- Issue date Apr 3, 2012
- Ricoh Company, Ltd.
- Noboru Sasa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium and recording and reproducing method using...
- Patent number 8,139,468
- Issue date Mar 20, 2012
- Ricoh Company, Ltd.
- Hiroshi Miura
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording medium, method of manufacturing the o...
- Patent number 7,507,523
- Issue date Mar 24, 2009
- Ricoh Company, Ltd.
- Katsuyuki Yamada
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium, recording material, method of producing o...
- Patent number 7,364,781
- Issue date Apr 29, 2008
- Ricoh Company, Ltd.
- Kazunori Ito
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium, recording material, method of producing o...
- Patent number 6,884,487
- Issue date Apr 26, 2005
- Ricoh Company, Ltd.
- Kazunori Ito
- G11 - INFORMATION STORAGE
Information Patent Grant
Phase-change optical information recording medium
- Patent number 6,790,592
- Issue date Sep 14, 2004
- Ricoh Company, Ltd.
- Makoto Harigaya
- G11 - INFORMATION STORAGE
Information Patent Grant
Photoreceptor, method of evaluating a photoreceptor, and method of...
- Patent number 6,649,313
- Issue date Nov 18, 2003
- Ricoh Company, Ltd.
- Toshiyuki Kabata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photoreceptor, method of evaluating the photoreceptor, method of pr...
- Patent number 6,534,227
- Issue date Mar 18, 2003
- Ricoh Company, Ltd.
- Toshiyuki Kabata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Zoom lens system
- Patent number 5,745,299
- Issue date Apr 28, 1998
- Ricoh Company, Ltd.
- Noriyuki Iwata
- G02 - OPTICS
Information Patent Grant
Lens for reading an original image
- Patent number 5,680,254
- Issue date Oct 21, 1997
- Ricoh Company, Ltd.
- Takeshi Ueda
- G02 - OPTICS
Information Patent Grant
Zoom finder
- Patent number 5,642,230
- Issue date Jun 24, 1997
- Ricoh Company, Ltd.
- Noriyuki Iwata
- G02 - OPTICS
Information Patent Grant
Zoom finder of real image type and real image type zoom finder capa...
- Patent number 5,448,400
- Issue date Sep 5, 1995
- Ricoh Company, Ltd.
- Syuichi Kikuchi
- G02 - OPTICS
Information Patent Grant
Focal length transitional method, auxiliary lens for transiting foc...
- Patent number 5,408,361
- Issue date Apr 18, 1995
- Ricoh Company, Ltd.
- Noriyuki Iwata
- G02 - OPTICS
Information Patent Grant
Finder optical system
- Patent number 5,202,714
- Issue date Apr 13, 1993
- Ricoh Company, Ltd.
- Noriyuki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
WORM OPTICAL RECORDING MEDIUM
- Publication number 20090197117
- Publication date Aug 6, 2009
- Noboru Sasa
- G11 - INFORMATION STORAGE
Information Patent Application
Optical recording medium, recording material, method of producing o...
- Publication number 20060188686
- Publication date Aug 24, 2006
- Kazunori Ito
- G11 - INFORMATION STORAGE
Information Patent Application
Optical recording medium, recording material, method of producing o...
- Publication number 20050058055
- Publication date Mar 17, 2005
- Kazunori Ito
- G11 - INFORMATION STORAGE
Information Patent Application
Photoreceptor, method of evaluating a photoreceptor, and method of...
- Publication number 20030175606
- Publication date Sep 18, 2003
- Toshiyuki Kabata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Optical recording medium, recording material, method of producing o...
- Publication number 20030143365
- Publication date Jul 31, 2003
- Kazunori Ito
- G11 - INFORMATION STORAGE
Information Patent Application
Optical information recording medium, method of manufacturing the o...
- Publication number 20020110063
- Publication date Aug 15, 2002
- Katsuyuki Yamada
- G11 - INFORMATION STORAGE
Information Patent Application
Phase-change optical information recording medium
- Publication number 20020098445
- Publication date Jul 25, 2002
- Ricoh Company, Ltd.
- Makoto Harigaya
- G11 - INFORMATION STORAGE
Information Patent Application
Photoreceptor, method of evaluting the photoreceptor, method of pro...
- Publication number 20020018947
- Publication date Feb 14, 2002
- RICOH COMPANY, LTD.
- Toshiyuki Kabata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Noriyuki Iwata

Person

Patents Grantslast 30 patents

Worm optical recording medium

Optical recording medium and recording and reproducing method using...

Optical information recording medium, method of manufacturing the o...

Optical recording medium, recording material, method of producing o...

Optical recording medium, recording material, method of producing o...

Phase-change optical information recording medium

Photoreceptor, method of evaluating a photoreceptor, and method of...

Photoreceptor, method of evaluating the photoreceptor, method of pr...

Zoom lens system

Lens for reading an original image

Zoom finder

Zoom finder of real image type and real image type zoom finder capa...

Focal length transitional method, auxiliary lens for transiting foc...

Finder optical system

Patents Applicationslast 30 patents

WORM OPTICAL RECORDING MEDIUM

Optical recording medium, recording material, method of producing o...

Optical recording medium, recording material, method of producing o...

Photoreceptor, method of evaluating a photoreceptor, and method of...

Optical recording medium, recording material, method of producing o...

Optical information recording medium, method of manufacturing the o...

Phase-change optical information recording medium

Photoreceptor, method of evaluting the photoreceptor, method of pro...