Masayuki MURANAKA

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Motor controller, motor driving apparatus, motor driving system, im...
- Patent number 10,199,967
- Issue date Feb 5, 2019
- Ricoh Company, Ltd.
- Norihiro Yamamoto
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Optical scanning apparatus and image forming device
- Patent number 9,925,798
- Issue date Mar 27, 2018
- Ricoh Company, Ltd.
- Naoto Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical scanning apparatus and image forming device
- Patent number 9,625,711
- Issue date Apr 18, 2017
- Ricoh Company, Ltd.
- Naoto Watanabe
- G02 - OPTICS
Information Patent Grant
Rear-projection screen and a rear projection image display employin...
- Patent number 5,513,037
- Issue date Apr 30, 1996
- Hitachi, Ltd.
- Takahiko Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Ultra-wide angle liquid crystal projector system
- Patent number 5,500,747
- Issue date Mar 19, 1996
- Hitachi, Ltd.
- Hideo Tanide
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Rear-projection type image display apparatus and rear-projection ty...
- Patent number 5,485,308
- Issue date Jan 16, 1996
- Hitachi, Ltd.
- Koji Hirata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rear-projection screen and a rear projection image display employin...
- Patent number 5,400,114
- Issue date Mar 21, 1995
- Hitachi, Ltd.
- Takahiko Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Temperature compensating lens system for projection television
- Patent number 5,272,540
- Issue date Dec 21, 1993
- Hitachi, Ltd.
- Koji Hirata
- G02 - OPTICS
Information Patent Grant
Projection lens system for projection type television
- Patent number 5,255,122
- Issue date Oct 19, 1993
- Hitachi, Ltd.
- Nobuhiro Konuma
- G02 - OPTICS
Information Patent Grant
Video projector with optical color balance
- Patent number 5,200,814
- Issue date Apr 6, 1993
- Hitachi, Ltd.
- Koji Hirata
- G02 - OPTICS
Information Patent Grant
Rear projection screen and method of producing the same
- Patent number 5,066,099
- Issue date Nov 19, 1991
- Hitachi, Ltd.
- Takahoko Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection lens system
- Patent number 4,948,237
- Issue date Aug 14, 1990
- Hitachi, Ltd.
- Koji Hirata
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
MOTOR CONTROLLER, MOTOR DRIVING APPARATUS, MOTOR DRIVING SYSTEM, IM...
- Publication number 20180013363
- Publication date Jan 11, 2018
- RICOH COMPANY, LTD.
- Norihiro YAMAMOTO
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
OPTICAL SCANNING APPARATUS AND IMAGE FORMING DEVICE
- Publication number 20170160667
- Publication date Jun 8, 2017
- Naoto WATANABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POSITION ESTIMATION DEVICE, MOTOR DRIVE CONTROL DEVICE, POSITION ES...
- Publication number 20160065109
- Publication date Mar 3, 2016
- RICOH COMPANY, LTD.
- Norihiro YAMAMOTO
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MOTOR DRIVE CONTROL APPARATUS AND MOTOR DRIVE CONTROL METHOD
- Publication number 20160056743
- Publication date Feb 25, 2016
- RICOH COMPANY, LTD.
- Haruyuki SUZUKI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POSITION ESTIMATION DEVICE, MOTOR DRIVE CONTROL DEVICE, AND POSITIO...
- Publication number 20160011009
- Publication date Jan 14, 2016
- RICOH COMPANY, LTD.
- Fumihiro SHIMIZU
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL SCANNING APPARATUS AND IMAGE FORMING DEVICE
- Publication number 20130155166
- Publication date Jun 20, 2013
- Naoto WATANABE
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Masayuki MURANAKA

Person

Patents Grantslast 30 patents

Motor controller, motor driving apparatus, motor driving system, im...

Optical scanning apparatus and image forming device

Optical scanning apparatus and image forming device

Rear-projection screen and a rear projection image display employin...

Ultra-wide angle liquid crystal projector system

Rear-projection type image display apparatus and rear-projection ty...

Rear-projection screen and a rear projection image display employin...

Temperature compensating lens system for projection television

Projection lens system for projection type television

Video projector with optical color balance

Rear projection screen and method of producing the same

Projection lens system

Patents Applicationslast 30 patents

MOTOR CONTROLLER, MOTOR DRIVING APPARATUS, MOTOR DRIVING SYSTEM, IM...

OPTICAL SCANNING APPARATUS AND IMAGE FORMING DEVICE

POSITION ESTIMATION DEVICE, MOTOR DRIVE CONTROL DEVICE, POSITION ES...

MOTOR DRIVE CONTROL APPARATUS AND MOTOR DRIVE CONTROL METHOD

POSITION ESTIMATION DEVICE, MOTOR DRIVE CONTROL DEVICE, AND POSITIO...

OPTICAL SCANNING APPARATUS AND IMAGE FORMING DEVICE