Inventor
NIHEI YASUHIRO
JP46 patents
⚠️ This page may combine multiple inventors who share the name “NIHEI YASUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
21 patentsUS7283151B2Oct 16, 2007
Pixel clock generation device causing state transition of pixel clock according to detected state transition and phase data indicating phase shift amount
RICOH KK81 citations98
US7271824B2Sep 18, 2007
Pixel clock generating apparatus, optical writing apparatus using a pixel clock, imaging apparatus, and method for generating pixel clocks
RICOH KK83 citations98
US6791596B2Sep 14, 2004
Method and apparatus for image forming capable of effectively generating pixel clock pulses
RICOH KK84 citations98
US6731317B2May 4, 2004
Pulse modulation signal generation circuit, and semiconductor laser modulation device, optical scanning device and image formation device using the same
RICOH KK84 citations98
US7256815B2Aug 14, 2007
Image forming method, image forming apparatus, optical scan device, and image forming apparatus using the same
RICOH KK58 citations96
US6933957B2Aug 23, 2005
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
RICOH KK63 citations96
US6917639B2Jul 12, 2005
Laser driver circuit
RICOH KK61 citations95
US7701480B2Apr 20, 2010
Light-source driving device, optical scanning device, and image forming apparatus
RICOH KK34 citations92
US7528625B2May 5, 2009
Image forming apparatus
RICOH KK22 citations92
US7327379B2Feb 5, 2008
Pixel clock and pulse-modulation-signal generating device, optical scanner, and image forming apparatus
RICOH KK36 citations92
US7212224B2May 1, 2007
Pixel clock creation method, pixel clock creation device, optical scanning device, and image forming apparatus
RICOH KK37 citations92
US6927789B2Aug 9, 2005
Pixel clock generating device, laser scanning device, and image forming device
RICOH KK52 citations92
US7826110B2Nov 2, 2010
Light scanning apparatus, light scanning method, image forming apparatus, and color image forming apparatus
RICOH KK12 citations84
US7515170B2Apr 7, 2009
Optical scanner and image forming apparatus
RICOH KK15 citations84
US7496121B2Feb 24, 2009
Laser modulating and driving device and image reproducing apparatus using the same
RICOH KK15 citations84
US7193480B2Mar 20, 2007
Voltage controlled oscillator, PLL circuit, pulse modulation signal generating circuit, semiconductor laser modulation device and image forming apparatus
RICOH KK13 citations84
US7456856B2Nov 25, 2008
Clock signal generation circuit, optical scanning apparatus, and image forming apparatus
RICOH KK8 citations74
US7009430B2Mar 7, 2006
Circuit for generating pixel clock with fine phase control
RICOH KK9 citations74
US7671882B2Mar 2, 2010
Semiconductor laser modulation driving apparatus and image forming apparatus
RICOH KK5 citations63
US7760223B2Jul 20, 2010
Optical scan apparatus and image formation apparatus
RICOH KK6 citations62
US7400210B2Jul 15, 2008
Voltage controlled oscillator, PLL circuit, pulse modulation signal generating circuit, semiconductor laser modulation device and image forming apparatus
RICOH KK1 citations52
RICOH CO LTD
12 patentsUS7920305B2Apr 5, 2011
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
RICOH CO LTD9 citations84
US10739446B2Aug 11, 2020
Range-finding device
RICOH CO LTD3 citations73
US10596964B2Mar 24, 2020
Distance measurement device, moveable device, and distance measuring method
RICOH CO LTD2 citations72
US8005321B2Aug 23, 2011
Pixel clock generator, optical scanner, and image forming apparatus
RICOH CO LTD4 citations63
US7995251B2Aug 9, 2011
Optical scanning device, optical scanning method, and image forming apparatus
RICOH CO LTD3 citations63
US7936493B2May 3, 2011
Dot position correcting apparatus, optical scanning apparatus, imaging apparatus, and color imaging apparatus
RICOH CO LTD4 citations63
US7936367B2May 3, 2011
Image forming apparatus controlling the output level of the light source
RICOH CO LTD6 citations63
US7834902B2Nov 16, 2010
Pixel clock creation method, pixel clock creation device, optical scanning device, and image forming apparatus
RICOH CO LTD3 citations63
US10775502B2Sep 15, 2020
Distance-measuring apparatus, mobile object, robot, three-dimensional measuring device, surveillance camera, and distance-measuring method
RICOH CO LTD1 citations62
US7973817B2Jul 5, 2011
Pixel clock and pulse-modulation-signal generating device, optical scanner, and image forming apparatus
RICOH CO LTD0 citations52
US10705215B2Jul 7, 2020
Distance measurement apparatus, and method of measuring distance
RICOH CO LTD0 citations41
US10481263B2Nov 19, 2019
Range finding apparatus, moveable apparatus, robot, three dimensional measurement apparatus, method of measuring three dimensional information, and storage medium
RICOH CO LTD0 citations41
NIHEI YASUHIRO
5 patentsUS8237760B2Aug 7, 2012
Light-source driving device, optical scanning device, and counting method
NIHEI YASUHIRO20 citations83
US9035988B2May 19, 2015
Light source driving device, light scanning device and image forming apparatus
NIHEI YASUHIRO5 citations72
US8310513B2Nov 13, 2012
Light-source driving device, optical scanning device, and image forming apparatus
NIHEI YASUHIRO6 citations72
US8270026B2Sep 18, 2012
Light source driving device with relationship-based drive signal generating circuit, optical scanning device, and image forming apparatus
NIHEI YASUHIRO4 citations62
US8760738B2Jun 24, 2014
Method of measuring a deviation in timing of a start of writing in scanning lines, optical scanning device, and image forming apparatus
NIHEI YASUHIRO0 citations41