Yukihisa Yokoyama

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical scanning unit and image forming apparatus
- Patent number 9,851,559
- Issue date Dec 26, 2017
- Ricoh Company, Ltd.
- Yukio Itami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical scanning device including a rotating polygon mirror and ima...
- Patent number 9,323,171
- Issue date Apr 26, 2016
- Ricoh Company, Ltd.
- Yukio Itami
- G02 - OPTICS
Information Patent Grant
Optical scanning unit and image forming apparatus
- Patent number 9,304,315
- Issue date Apr 5, 2016
- Ricoh Company, Ltd.
- Yukio Itami
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical scanning device and image forming apparatus
- Patent number 9,279,979
- Issue date Mar 8, 2016
- Ricoh Company, Limited
- Yukihisa Yokoyama
- G02 - OPTICS
Information Patent Grant
Optical scanning unit and image forming apparatus
- Patent number 9,069,174
- Issue date Jun 30, 2015
- Ricoh Company, Ltd.
- Yukio Itami
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical scanning apparatus and image forming apparatus utilizing a...
- Patent number 9,019,333
- Issue date Apr 28, 2015
- Ricoh Company, Limited
- Yukio Itami
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
IMAGE-CAPTURING OPTICAL SYSTEM, CAMERA INCORPORATING THE SAME, AND...
- Publication number 20220236520
- Publication date Jul 28, 2022
- Yukihisa YOKOYAMA
- G02 - OPTICS
Information Patent Application
IMAGING OPTICAL SYSTEM, IMAGING APPARATUS, STEREO CAMERA, DISTANCE...
- Publication number 20210011249
- Publication date Jan 14, 2021
- Yukihisa YOKOYAMA
- G02 - OPTICS
Information Patent Application
OPTICAL SCANNING UNIT AND IMAGE FORMING APPARATUS
- Publication number 20160147060
- Publication date May 26, 2016
- Yukio ITAMI
- G02 - OPTICS
Information Patent Application
OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20150346487
- Publication date Dec 3, 2015
- Naoki MIYATAKE
- G02 - OPTICS
Information Patent Application
OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20150338641
- Publication date Nov 26, 2015
- Yukihisa YOKOYAMA
- G02 - OPTICS
Information Patent Application
OPTICAL SCANNING UNIT AND IMAGE FORMING APPARATUS
- Publication number 20150268462
- Publication date Sep 24, 2015
- Yukio ITAMI
- G02 - OPTICS
Information Patent Application
OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20150097910
- Publication date Apr 9, 2015
- Yukio ITAMI
- G02 - OPTICS
Information Patent Application
OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS
- Publication number 20140204166
- Publication date Jul 24, 2014
- Yukio ITAMI
- G02 - OPTICS
Information Patent Application
OPTICAL SCANNING UNIT AND IMAGE FORMING APPARATUS
- Publication number 20140009555
- Publication date Jan 9, 2014
- Yukio ITAMI
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Yukihisa Yokoyama

Person

Patents Grantslast 30 patents

Optical scanning unit and image forming apparatus

Optical scanning device including a rotating polygon mirror and ima...

Optical scanning unit and image forming apparatus

Optical scanning device and image forming apparatus

Optical scanning unit and image forming apparatus

Optical scanning apparatus and image forming apparatus utilizing a...

Patents Applicationslast 30 patents

IMAGE-CAPTURING OPTICAL SYSTEM, CAMERA INCORPORATING THE SAME, AND...

IMAGING OPTICAL SYSTEM, IMAGING APPARATUS, STEREO CAMERA, DISTANCE...

OPTICAL SCANNING UNIT AND IMAGE FORMING APPARATUS

OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS

OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS

OPTICAL SCANNING UNIT AND IMAGE FORMING APPARATUS

OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS

OPTICAL SCANNING UNIT AND IMAGE FORMING APPARATUS