Masahiro Itoh

Person

Hitachioota, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Propagation optical system and virtual image display device
- Patent number 12,181,673
- Issue date Dec 31, 2024
- Ricoh Company, Ltd.
- Yoshifumi Sudoh
- G02 - OPTICS
Information Patent Grant
Head-mounted display device with adjuster
- Patent number 11,656,461
- Issue date May 23, 2023
- Ricoh Company, Ltd.
- Aino Hasegawa
- G02 - OPTICS
Information Patent Grant
Inclination detecting device, reading device, image processing appa...
- Patent number 11,115,561
- Issue date Sep 7, 2021
- Ricoh Company, Ltd.
- Hajime Tsukahara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Inclination detecting device, reading device, image processing appa...
- Patent number 11,102,364
- Issue date Aug 24, 2021
- Ricoh Company, Ltd.
- Yuuki Nakada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Sheet reading apparatus for detecting the shadow of a conveyed shee...
- Patent number 11,102,375
- Issue date Aug 24, 2021
- Ricoh Company, Ltd.
- Hiroshi Kubo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Edge detecting device, tilt correction device, reading device, imag...
- Patent number 11,102,365
- Issue date Aug 24, 2021
- Ricoh Company, Ltd.
- Tomohiko Ono
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image processing apparatus, image processing system, image processi...
- Patent number 11,012,585
- Issue date May 18, 2021
- Ricoh Company, Ltd.
- Ayumu Hashimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image processing apparatus, method for processing image, and record...
- Patent number 10,951,791
- Issue date Mar 16, 2021
- Ricoh Company, Ltd.
- Ayumu Hashimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reading device, image forming apparatus including same, and reading...
- Patent number 10,834,272
- Issue date Nov 10, 2020
- Ricoh Company, Ltd.
- Masamoto Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distance-measuring apparatus, mobile object, robot, three-dimension...
- Patent number 10,775,502
- Issue date Sep 15, 2020
- Ricoh Company, Ltd.
- Yoichi Ichikawa
- G01 - MEASURING TESTING
Information Patent Grant
Range-finding device
- Patent number 10,739,446
- Issue date Aug 11, 2020
- Ricoh Company, Ltd.
- Masahiro Itoh
- G01 - MEASURING TESTING
Information Patent Grant
Distance measurement apparatus, and method of measuring distance
- Patent number 10,705,215
- Issue date Jul 7, 2020
- Ricoh Company, Ltd.
- Yasuhiro Nihei
- G01 - MEASURING TESTING
Information Patent Grant
Distance measurement device, moveable device, and distance measurin...
- Patent number 10,596,964
- Issue date Mar 24, 2020
- Ricoh Company, Ltd.
- Yasuhiro Nihei
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Distance measurement device, moveable device, and distance measurin...
- Patent number 10,549,691
- Issue date Feb 4, 2020
- Ricoh Company, Ltd.
- Yasuhiro Nihei
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Range finding apparatus, moveable apparatus, robot, three dimension...
- Patent number 10,481,263
- Issue date Nov 19, 2019
- Ricoh Company, Ltd.
- Shu Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Metal corrosion resistance evaluation method and evaluation device...
- Patent number 10,215,686
- Issue date Feb 26, 2019
- Hitachi, Ltd.
- Kyoko Hombo
- G01 - MEASURING TESTING
Information Patent Grant
Liquid discharge apparatus, head drive control device, recording me...
- Patent number 10,105,951
- Issue date Oct 23, 2018
- Ricoh Company, Ltd.
- Naoya Kondo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Input operation detection device, projection apparatus, interactive...
- Patent number 10,048,808
- Issue date Aug 14, 2018
- Ricoh Company, Ltd.
- Koji Masuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image sensor, electronic apparatus, and driving method of electroni...
- Patent number 9,628,729
- Issue date Apr 18, 2017
- SONY SEMICONDUCTOR SOLUTIONS CORPORATION
- Eiji Makino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image sensor, electronic apparatus, and driving method of electroni...
- Patent number 9,001,244
- Issue date Apr 7, 2015
- Sony Corporation
- Eiji Makino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Scanner lens, image reader and image forming device
- Patent number 8,885,232
- Issue date Nov 11, 2014
- Ricoh Company, Ltd.
- Hirotoshi Nakayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image-forming lens, image reader, and image-forming device
- Patent number 8,854,701
- Issue date Oct 7, 2014
- Ricoh Company, Ltd.
- Hirotoshi Nakayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image sensor, electronic apparatus, and driving method of electroni...
- Patent number 8,767,104
- Issue date Jul 1, 2014
- Sony Corporation
- Eiji Makino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image sensor, electronic apparatus, and driving method of electroni...
- Patent number 8,711,260
- Issue date Apr 29, 2014
- Sony Corporation
- Eiji Makino
Information Patent Grant
Document illuminating system and image reader including the same
- Patent number 8,610,968
- Issue date Dec 17, 2013
- Ricoh Company, Ltd.
- Atsushi Takaura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Document illuminating system and image reader including the same
- Patent number 8,416,471
- Issue date Apr 9, 2013
- Ricoh Company, Ltd.
- Atsushi Takaura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image reading device and image forming apparatus
- Patent number 8,284,462
- Issue date Oct 9, 2012
- Ricoh Company, Ltd.
- Issei Abe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical reader, image reader and image forming device
- Patent number 8,253,989
- Issue date Aug 28, 2012
- Ricoh Company, Ltd.
- Kiichiro Nishina
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image reader and image formation apparatus
- Patent number 8,199,371
- Issue date Jun 12, 2012
- Ricoh Company, Ltd.
- Kiichiro Nishina
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image read-out device and image forming device
- Patent number 8,174,738
- Issue date May 8, 2012
- Ricoh Company, Ltd.
- Nobuaki Ono
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
HEAD-MOUNTED DISPLAY AND EYEGLASSES
- Publication number 20240201501
- Publication date Jun 20, 2024
- Aino HASEGAWA
- G02 - OPTICS
Information Patent Application
LIGHT GUIDE MEMBER AND DISPLAY DEVICE
- Publication number 20230280592
- Publication date Sep 7, 2023
- Naoki NAKAMURA
- G02 - OPTICS
Information Patent Application
LIGHT GUIDE AND VIRTUAL IMAGE DISPLAY DEVICE
- Publication number 20230039870
- Publication date Feb 9, 2023
- Susumu MOMMA
- G02 - OPTICS
Information Patent Application
LIGHT GUIDE AND VIRTUAL-IMAGE DISPLAY DEVICE
- Publication number 20230003931
- Publication date Jan 5, 2023
- Naoki NAKAMURA
- G02 - OPTICS
Information Patent Application
LENS UNIT, OPTICAL SYSTEM, AND ELECTRONIC APPARATUS
- Publication number 20220252838
- Publication date Aug 11, 2022
- Yoshifumi SUDOH
- G02 - OPTICS
Information Patent Application
VIRTUAL IMAGE DISPLAY DEVICE
- Publication number 20220057640
- Publication date Feb 24, 2022
- Naoki NAKAMURA
- G02 - OPTICS
Information Patent Application
PROPAGATION OPTICAL SYSTEM AND VIRTUAL IMAGE DISPLAY DEVICE
- Publication number 20220026716
- Publication date Jan 27, 2022
- Ricoh Company, Ltd.
- Yoshifumi SUDOH
- G02 - OPTICS
Information Patent Application
HEAD-MOUNTED DISPLAY DEVICE
- Publication number 20210165221
- Publication date Jun 3, 2021
- Aino HASEGAWA
- G02 - OPTICS
Information Patent Application
EDGE DETECTING DEVICE, TILT CORRECTION DEVICE, READING DEVICE, IMAG...
- Publication number 20200336615
- Publication date Oct 22, 2020
- Ricoh Company, Ltd.
- Tomohiko ONO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE PROCESSING APPARATUS, METHOD FOR PROCESSING IMAGE, AND RECORD...
- Publication number 20200296255
- Publication date Sep 17, 2020
- RICOH COMPANY, LTD.
- Ayumu HASHIMOTO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INCLINATION DETECTING DEVICE, READING DEVICE, IMAGE PROCESSING APPA...
- Publication number 20200252513
- Publication date Aug 6, 2020
- Ricoh Company, Ltd.
- Yuuki NAKADA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INCLINATION DETECTING DEVICE, READING DEVICE, IMAGE PROCESSING APPA...
- Publication number 20200244837
- Publication date Jul 30, 2020
- Ricoh Company, Ltd.
- Hajime TSUKAHARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SHEET READING APPARATUS, DOCUMENT READING APPARATUS, AND IMAGE FORM...
- Publication number 20200137262
- Publication date Apr 30, 2020
- Ricoh Company, Ltd.
- Hiroshi KUBO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE PROCESSING APPARATUS, IMAGE PROCESSING SYSTEM, IMAGE PROCESSI...
- Publication number 20200053229
- Publication date Feb 13, 2020
- Ayumu HASHIMOTO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
READING DEVICE, IMAGE FORMING APPARATUS INCLUDING SAME, AND READING...
- Publication number 20200053233
- Publication date Feb 13, 2020
- Masamoto NAKAZAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DISTANCE MEASUREMENT APPARATUS, AND METHOD OF MEASURING DISTANCE
- Publication number 20180136330
- Publication date May 17, 2018
- Yasuhiro Nihei
- G01 - MEASURING TESTING
Information Patent Application
DISTANCE-MEASURING APPARATUS, MOBILE OBJECT, ROBOT, THREE-DIMENSION...
- Publication number 20180128919
- Publication date May 10, 2018
- Yoichi Ichikawa
- G01 - MEASURING TESTING
Information Patent Application
RANGE FINDING APPARATUS, MOVEABLE APPARATUS, ROBOT, THREE DIMENSION...
- Publication number 20170261611
- Publication date Sep 14, 2017
- Shu TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
LIQUID DISCHARGE APPARATUS, HEAD DRIVE CONTROL DEVICE, RECORDING ME...
- Publication number 20170225461
- Publication date Aug 10, 2017
- RICOH COMPANY, LTD.
- Naoya Kondo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
RANGE-FINDING DEVICE
- Publication number 20170212224
- Publication date Jul 27, 2017
- Masahiro ITOH
- G01 - MEASURING TESTING
Information Patent Application
DISTANCE MEASUREMENT DEVICE, MOVEABLE DEVICE, AND DISTANCE MEASURIN...
- Publication number 20170199271
- Publication date Jul 13, 2017
- Yasuhiro NIHEI
- B60 - VEHICLES IN GENERAL
Information Patent Application
SENSOR, SENSOR SYSTEM AND METHOD OF FINDING RANGE
- Publication number 20160370460
- Publication date Dec 22, 2016
- Shu TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
CORROSION PROTECTION SYSTEM AND PUMP DEVICE WITH THE SAME
- Publication number 20160326657
- Publication date Nov 10, 2016
- Hitachi, Ltd
- Reo KOBAYASHI
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
INPUT OPERATION DETECTION DEVICE, PROJECTION APPARATUS, INTERACTIVE...
- Publication number 20160170564
- Publication date Jun 16, 2016
- Koji MASUDA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Metal Corrosion Resistance Evaluation Method and Evaluation Device...
- Publication number 20160146719
- Publication date May 26, 2016
- Hitachi, Ltd
- Kyoko HOMBO
- G01 - MEASURING TESTING
Information Patent Application
INPUT-OPERATION DETECTION DEVICE, IMAGE DISPLAY APPARATUS, PROJECTO...
- Publication number 20150301690
- Publication date Oct 22, 2015
- Koji MASUDA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE SENSOR, ELECTRONIC APPARATUS, AND DRIVING METHOD OF ELECTRONI...
- Publication number 20150146059
- Publication date May 28, 2015
- SONY CORPORATION
- Eiji Makino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELIGIBLE OPERATOR DETERMINATION DEVICE AND ELIGIBLE OPERATOR DETERM...
- Publication number 20150092994
- Publication date Apr 2, 2015
- RICOH COMPANY, LTD.
- Koji MASUDA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE SENSOR, ELECTRONIC APPARATUS, AND DRIVING METHOD OF ELECTRONI...
- Publication number 20140204254
- Publication date Jul 24, 2014
- SONY CORPORATION
- Eiji Makino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SCANNER LENS, IMAGE READER AND IMAGE FORMING DEVICE
- Publication number 20140043662
- Publication date Feb 13, 2014
- Hirotoshi Nakayama
- G02 - OPTICS

Masahiro Itoh

Person

Patents Grantslast 30 patents

Propagation optical system and virtual image display device

Head-mounted display device with adjuster

Inclination detecting device, reading device, image processing appa...

Inclination detecting device, reading device, image processing appa...

Sheet reading apparatus for detecting the shadow of a conveyed shee...

Edge detecting device, tilt correction device, reading device, imag...

Image processing apparatus, image processing system, image processi...

Image processing apparatus, method for processing image, and record...

Reading device, image forming apparatus including same, and reading...

Distance-measuring apparatus, mobile object, robot, three-dimension...

Range-finding device

Distance measurement apparatus, and method of measuring distance

Distance measurement device, moveable device, and distance measurin...

Distance measurement device, moveable device, and distance measurin...

Range finding apparatus, moveable apparatus, robot, three dimension...

Metal corrosion resistance evaluation method and evaluation device...

Liquid discharge apparatus, head drive control device, recording me...

Input operation detection device, projection apparatus, interactive...

Image sensor, electronic apparatus, and driving method of electroni...

Image sensor, electronic apparatus, and driving method of electroni...

Scanner lens, image reader and image forming device

Image-forming lens, image reader, and image-forming device

Image sensor, electronic apparatus, and driving method of electroni...

Image sensor, electronic apparatus, and driving method of electroni...

Document illuminating system and image reader including the same

Document illuminating system and image reader including the same

Image reading device and image forming apparatus

Optical reader, image reader and image forming device

Image reader and image formation apparatus

Image read-out device and image forming device

Patents Applicationslast 30 patents

HEAD-MOUNTED DISPLAY AND EYEGLASSES

LIGHT GUIDE MEMBER AND DISPLAY DEVICE

LIGHT GUIDE AND VIRTUAL IMAGE DISPLAY DEVICE

LIGHT GUIDE AND VIRTUAL-IMAGE DISPLAY DEVICE

LENS UNIT, OPTICAL SYSTEM, AND ELECTRONIC APPARATUS

VIRTUAL IMAGE DISPLAY DEVICE

PROPAGATION OPTICAL SYSTEM AND VIRTUAL IMAGE DISPLAY DEVICE

HEAD-MOUNTED DISPLAY DEVICE

EDGE DETECTING DEVICE, TILT CORRECTION DEVICE, READING DEVICE, IMAG...

IMAGE PROCESSING APPARATUS, METHOD FOR PROCESSING IMAGE, AND RECORD...

INCLINATION DETECTING DEVICE, READING DEVICE, IMAGE PROCESSING APPA...

INCLINATION DETECTING DEVICE, READING DEVICE, IMAGE PROCESSING APPA...

SHEET READING APPARATUS, DOCUMENT READING APPARATUS, AND IMAGE FORM...

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING SYSTEM, IMAGE PROCESSI...

READING DEVICE, IMAGE FORMING APPARATUS INCLUDING SAME, AND READING...

DISTANCE MEASUREMENT APPARATUS, AND METHOD OF MEASURING DISTANCE

DISTANCE-MEASURING APPARATUS, MOBILE OBJECT, ROBOT, THREE-DIMENSION...

RANGE FINDING APPARATUS, MOVEABLE APPARATUS, ROBOT, THREE DIMENSION...

LIQUID DISCHARGE APPARATUS, HEAD DRIVE CONTROL DEVICE, RECORDING ME...

RANGE-FINDING DEVICE

DISTANCE MEASUREMENT DEVICE, MOVEABLE DEVICE, AND DISTANCE MEASURIN...

SENSOR, SENSOR SYSTEM AND METHOD OF FINDING RANGE

CORROSION PROTECTION SYSTEM AND PUMP DEVICE WITH THE SAME

INPUT OPERATION DETECTION DEVICE, PROJECTION APPARATUS, INTERACTIVE...

Metal Corrosion Resistance Evaluation Method and Evaluation Device...

INPUT-OPERATION DETECTION DEVICE, IMAGE DISPLAY APPARATUS, PROJECTO...

IMAGE SENSOR, ELECTRONIC APPARATUS, AND DRIVING METHOD OF ELECTRONI...

ELIGIBLE OPERATOR DETERMINATION DEVICE AND ELIGIBLE OPERATOR DETERM...

IMAGE SENSOR, ELECTRONIC APPARATUS, AND DRIVING METHOD OF ELECTRONI...

SCANNER LENS, IMAGE READER AND IMAGE FORMING DEVICE