Inventor
OGAWA HIROFUMI
JP45 patents
⚠️ This page may combine multiple inventors who share the name “OGAWA HIROFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
9 patentsUS4952839AAug 28, 1990
Photoconductive device and method of operating the same
HITACHI LTD28 citations92
US4888521ADec 19, 1989
Photoconductive device and method of operating the same
HITACHI LTD26 citations92
US5233265AAug 3, 1993
Photoconductive imaging apparatus
HITACHI LTD37 citations91
US4556817ADec 3, 1985
Photoelectric conversion apparatus
HITACHI LTD13 citations74
US4636682AJan 13, 1987
Image pickup tube
HITACHI LTD2 citations63
US4626885ADec 2, 1986
Photosensor having impurity concentration gradient
HITACHI LTD4 citations62
US4609846ASep 2, 1986
Image pick-up tube having collector and balance electrodes
HITACHI LTD4 citations62
US5218264AJun 8, 1993
Image pick-up tube and apparatus having the same
HITACHI LTD2 citations61
US4883562ANov 28, 1989
Method of making a photosensor
HITACHI LTD2 citations61
NISHIKAWA RUBBER CO LTD
7 patentsUS10035410B2Jul 31, 2018
Parting seal and sealing structure of parting portion
NISHIKAWA RUBBER CO LTD7 citations79
US10513169B2Dec 24, 2019
Weather strip for automobile
NISHIKAWA RUBBER CO LTD3 citations73
US10081232B2Sep 25, 2018
Weatherstrip assembly for a vehicle
NISHIKAWA RUBBER CO LTD3 citations73
US11220166B2Jan 11, 2022
Sealing member of sliding door
NISHIKAWA RUBBER CO LTD1 citations62
US12589641B2Mar 31, 2026
Coupling structure of door weather strip
NISHIKAWA RUBBER CO LTD0 citations52
US11084363B2Aug 10, 2021
Sealing structure
NISHIKAWA RUBBER CO LTD0 citations52
US12269324B2Apr 8, 2025
Automobile weather strip
NISHIKAWA RUBBER CO LTD0 citations48
RICOH KK
6 patentsUS7022944B2Apr 4, 2006
Image forming apparatus preventing excessive increase in temperature of fixing device
RICOH KK90 citations98
US6881927B2Apr 19, 2005
Image forming apparatus preventing excessive increase in temperature of fixing device
RICOH KK85 citations98
US6785505B2Aug 31, 2004
Fixing device preventing rubbing of toner image
RICOH KK83 citations98
US6628916B2Sep 30, 2003
Fixing device preventing rubbing of toner image
RICOH KK107 citations98
US7509085B2Mar 24, 2009
Image forming apparatus, fixing apparatus and toner
RICOH KK95 citations96
US6636709B2Oct 21, 2003
Fixing device having temperature detecting member and image forming apparatus using said fixing device
RICOH KK108 citations96
MORI KOUSUKE
4 patentsUS8479450B2Jul 9, 2013
Weather strip having a drainage structure
MORI KOUSUKE3 citations60
US8434813B2May 7, 2013
Drainage structure of weather strip
MORI KOUSUKE3 citations60
US8782955B2Jul 22, 2014
Sealing structure of weather strip for retractable roof vehicles
MORI KOUSUKE1 citations49
US8408633B2Apr 2, 2013
Seal structure for retractable roof vehicle
MORI KOUSUKE0 citations39
OGAWA HIROFUMI
3 patentsUS8225941B2Jul 24, 2012
Hollow fiber membrane for treating liquids
OGAWA HIROFUMI9 citations81
US8085081B2Dec 27, 2011
Semiconductor device for output of pulse waveforms
OGAWA HIROFUMI5 citations60
US9239675B2Jan 19, 2016
Input display apparatus and method, image forming apparatus, imaging apparatus, and computer readable medium
OGAWA HIROFUMI0 citations48
YOKOTA HIDEYUKI
3 patentsUS9795932B2Oct 24, 2017
Porous hollow fiber membrane and a porous hollow fiber membrane for the treatment of a protein-containing liquid
YOKOTA HIDEYUKI4 citations70
US8881915B2Nov 11, 2014
Polymeric porous hollow fiber membrane
YOKOTA HIDEYUKI4 citations70
US9492794B2Nov 15, 2016
Porous hollow fiber membrane for treatment of protein-containing liquid
YOKOTA HIDEYUKI4 citations68
FUJI XEROX CO LTD
3 patentsUS9241083B2Jan 19, 2016
Apparatus, method, and computer readable medium for displaying gesture guidance information
FUJI XEROX CO LTD2 citations60
US10365872B2Jul 30, 2019
Print instruction apparatus and non-transitory computer readable medium
FUJI XEROX CO LTD0 citations40
US10334124B2Jun 25, 2019
Information processing apparatus, non-transitory computer readable medium, and information processing system for print job management
FUJI XEROX CO LTD0 citations40
FUJIFILM BUSINESS INNOVATION CORP
2 patentsUS12205583B2Jan 21, 2025
Information processing apparatus and non-transitory computer readable medium storing program
FUJIFILM BUSINESS INNOVATION CORP0 citations62
US11546479B2Jan 3, 2023
Information processing apparatus and non-transitory computer readable medium storing information processing program
FUJIFILM BUSINESS INNOVATION CORP0 citations62