LexDanaLexDanabeta
Inventor

Yasuhiro Nihei

Inventor
Kanagawa, JP

Overview

47→
Patents
2004–2020
Patent span
Physics
Primary field (CPC G)

Patents· 47 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Nprimary
H04NPictorial communication, e.g. television24%
G02BOptical elements, systems or apparatus16%
G06KGraphical data reading14%
B41JTypewriters13%
G03GElectrography7%
G01SRadio direction-finding5%
H03KPulse technique3%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses3%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light2%
H05BElectric heating2%
PatentTitleYear
10,775,502Distance-measuring apparatus, mobile object, robot, three-dimensional measuring device, surveillance camera, and distance-measuring method202010,739,446Range-finding device202010,705,215Distance measurement apparatus, and method of measuring distance202010,596,964Distance measurement device, moveable device, and distance measuring method202010,549,691Distance measurement device, moveable device, and distance measuring method202010,481,263Range finding apparatus, moveable apparatus, robot, three dimensional measurement apparatus, method of measuring three dimensional information, and storage medium201910,048,808Input operation detection device, projection apparatus, interactive whiteboard, digital signage, and projection system20189,983,531Moving-member detecting device and image forming apparatus20189,228,825'Positional change measurement device, positional change measurement method, and image forming apparatus'20169,035,988'Light source driving device, light scanning device and image forming apparatus'20158,760,738'Method of measuring a deviation in timing of a start of writing in scanning lines, optical scanning device, and image forming apparatus'20148,610,971'Image forming apparatus'20138,446,444'Optical scanning device and image forming apparatus'20138,310,516'Light scanning apparatus, light scanning method, image forming apparatus, color image forming apparatus, and recording medium having program'20128,310,513'Light-source driving device, optical scanning device, and image forming apparatus'20128,270,026'Light source driving device with relationship-based drive signal generating circuit, optical scanning device, and image forming apparatus'20128,253,768'Optical scanner and image forming apparatus'20128,237,760'Light-source driving device, optical scanning device, and counting method'20128,089,665'Optical scanning device moving gravity center of pixel in sub-scanning direction, image forming apparatus having light sources, and method'20128,005,321'Pixel clock generator, optical scanner, and image forming apparatus'20117,995,251'Optical scanning device, optical scanning method, and image forming apparatus'20117,973,817'Pixel clock and pulse-modulation-signal generating device, optical scanner, and image forming apparatus'20117,936,493'Dot position correcting apparatus, optical scanning apparatus, imaging apparatus, and color imaging apparatus'20117,936,367'Image forming apparatus controlling the output level of the light source'20117,920,305'Optical scanning device, optical scanning method, computer program product for executing optical scanning method, recording medium with computer program recorded thereon, image forming apparatus, and color image forming apparatus using the same'20117,834,902'Pixel clock creation method, pixel clock creation device, optical scanning device, and image forming apparatus'20107,826,110'Light scanning apparatus, light scanning method, image forming apparatus, and color image forming apparatus'20107,760,223'Optical scan apparatus and image formation apparatus'20107,701,480'Light-source driving device, optical scanning device, and image forming apparatus'20107,671,882'Semiconductor laser modulation driving apparatus and image forming apparatus'20107,528,625'Image forming apparatus'20097,515,170'Optical scanner and image forming apparatus'20097,496,121'Laser modulating and driving device and image reproducing apparatus using the same'20097,456,856'Clock signal generation circuit, optical scanning apparatus, and image forming apparatus'20087,400,210'Voltage controlled oscillator, PLL circuit, pulse modulation signal generating circuit, semiconductor laser modulation device and image forming apparatus'20087,327,379'Pixel clock and pulse-modulation-signal generating device, optical scanner, and image forming apparatus'20087,283,151'Pixel clock generation device causing state transition of pixel clock according to detected state transition and phase data indicating phase shift amount'20077,271,824'Pixel clock generating apparatus, optical writing apparatus using a pixel clock, imaging apparatus, and method for generating pixel clocks'20077,256,815'Image forming method, image forming apparatus, optical scan device, and image forming apparatus using the same'20077,212,224'Pixel clock creation method, pixel clock creation device, optical scanning device, and image forming apparatus'20077,193,480'Voltage controlled oscillator, PLL circuit, pulse modulation signal generating circuit, semiconductor laser modulation device and image forming apparatus'20077,009,430'Circuit for generating pixel clock with fine phase control'20066,933,957'Pixel clock generation apparatus, pixel clock generation method, and image forming apparatus capable of correcting main scan dot position shift with a high degree of accuracy'20056,927,789'Pixel clock generating device, laser scanning device, and image forming device'20056,917,639'Laser driver circuit'20056,791,596'Method and apparatus for image forming capable of effectively generating pixel clock pulses'20046,731,317'Pulse modulation signal generation circuit, and semiconductor laser modulation device, optical scanning device and image formation device using the same'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2010Patents assigned to RICOH KK (21)· patent assignee history
2004–2020Based in Kanagawa, JP· patent location history
2005–2016Based in Yokohama, JP· patent location history
2008–2011Based in Tokyo, JP· patent location history
2010–2020Patents assigned to RICOH CO LTD (25)· patent assignee history
2012–2018Patents assigned to NIHEI YASUHIRO (13)· patent assignee history
2012–2015Patents assigned to ISHIDA MASAAKI (9)· patent assignee history
2012–2015Patents assigned to OMORI ATSUFUMI (9)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD252010–2020
RICOH KK212004–2010
NIHEI YASUHIROself132012–2018
ISHIDA MASAAKI92012–2015
OMORI ATSUFUMI92012–2015
Locations
LocationPatentsSpan
Kanagawa, JP392004–2020
Yokohama, JP62005–2016
Tokyo, JP22008–2011