Inventor

Shigeru Sakamoto

Inventor

Himeji, JP

Overview

1980–2020

Patent span

Chemistry

Primary field (CPC C)

Patents· 103 as inventor

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

C08Fprimary

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%

C08JWorking-up6%

H01LSemiconductor devices5%

H10KOrganic electric solid-state devices5%

A61LMethods or apparatus for sterilising materials or objects in general5%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry5%

Y10TTechnical subjects covered by former us classification5%

G02BOptical elements, systems or apparatus4%

B29BPreparation or pretreatment of the material to be shaped4%

B60TVehicle brake control systems or parts thereof4%

PatentTitleYear

10,696,895Acrylic acid crosslinked polymer and use thereof2020 10,640,588Polyacrylic acid (salt), polyacrylic acid (salt)-based water-absorbing resin, and process for producing same2020 10,624,983Water absorbent resin powder2020 10,577,135Method for filling particulate water absorbing agent and method for sampling filled particulate water absorbing agent2020 10,566,567Display device2020 10,566,578Display device2020 10,541,385Display device and method of manufacturing a display device2020 10,439,157Display device2019 10,434,495Method for producing water absorbent polyacrylic acid (salt) resin powder, and water absorbent polyacrylic acid (salt) resin powder2019 10,406,256Gel pulverization device, method for manufacturing polyacrylic acid (polyacrylate) superabsorbent polymer powder, and superabsorbent polymer powder2019 10,388,708Display device2019 10,121,835Display device2018 10,121,829Display element, display device, and manufacturing method of the display device2018 10,101,619Display device and driving method for the same2018 10,062,863Display device2018 9,947,896Display device2018 9,741,775'Display device'2017 9,692,014'Display device'2017 9,676,947'Thermosetting conductive paste'2017 9,680,133'Display device'2017 9,593,212'Method for producing water absorbent resin particle'2017 9,543,369'Display device'2017 9,533,433'Gel pulverization device, method for manufacturing polyacrylic acid (polyacrylate) superabsorbent polymer powder, and superabsorbent polymer powder'2017 9,517,289'Water-absorbing agent and method for producing the same'2016 9,447,203'Method for producing water absorbent polyacrylic acid (salt) resin powder, and water absorbent polyacrylic acid (salt) resin powder'2016 9,334,376'Water-absorbable polyacrylic acid resin powder, and process for production thereof'2016 9,309,375'Water-absorbing agent having water-absorbent resin as a main component and production method of the water-absorbing agent'2016 9,305,327'Image processing apparatus and control method thereof'2016 9,243,079'Polyacrylic acid-based water-absorbing resin powder and method for producing the same'2016 9,187,579'Particle-shaped water absorbing agent and method for producing the same'2015 9,115,235'Water absorbing agent and production method thereof'2015 9,090,718'Water-absorbing resin and method for manufacturing the same'2015 9,019,304'Image processing apparatus and control method thereof'2015 8,951,693'Membrane electrode assembly and fuel cell'2015 8,947,771'Optical amplifying device'2015 8,932,784'Fuel cell'2015 8,854,638'Variable printing control apparatus and control program'2014 8,791,210'Polyacrylic water-absorbent resin powder and method for producing the same'2014 8,765,906'Method for producing polyacrylic acid (salt) type water absorbent resin powder'2014 8,735,646'Diaper with improved body fit'2014 8,717,380'Image processing apparatus and control method thereof'2014 8,633,941'Image-processing apparatus, method for controlling thereof, and computer program'2014 8,501,873'Water absorbent material, method for production of surface cross-linked water absorbent resin, and method for evaluation of water absorbent material'2013 8,361,218'Coloring composition, method for production thereof, and coloring method'2013 8,247,491'Water-absorbent resin composition and its production process'2012 8,076,530'Absorbent article with water-absorbing agent or agents'2011 8,009,318'Preparing form data and page data for printing, image processing device, image processing method, and computer readable recording medium stored with image processing program'2011 7,981,833'Aqueous-liquid-absorbing agent and its production process'2011 7,816,301'Aqueous-liquid-absorbing agent and its production process'2010 7,801,706'Structural Optimization system'2010 7,768,669'Image processing apparatus, printer using this apparatus, digital camera using this apparatus, consumable material holder for printer, and printer for digital camera'2010 7,638,078'Process for production of hydrogel particles and process for cutting of high-concentration hydrogel sheet'2009 7,611,572'Pixel-forming colorant compositions and their use'2009 7,576,910'Microscope and sample observation method'2009 7,553,365'Water-based pigment dispersions, inkjet recording inks, and color filters'2009 7,438,999'Dispersants for organic pigments'2008 7,428,110'Optical part holding unit'2008 7,423,816'Solid immersion lens and microscope'2008 7,393,404'Pigment dispersants and their use'2008 7,378,453'Surface crosslinking treatment method of water-absorbing resin powder'2008 7,368,148'Fabrication process of color filters, inks, color filters, and image displays using the color filters'2008 7,359,115'Sample observation method, microscope, and solid immersion lens, optical contact liquid used in the method'2008 7,347,894'Pigment dispersants and their use'2008 7,312,278'Water-absorbing agent and production process therefor, and sanitary material'2007 7,312,921'Microscope and sample observation method'2007 7,288,601'Method for production of water-absorbent resin and plow-shaped mixing device'2007 7,110,172'Microscope and sample observation method'2006 7,011,905'Solid polymer electrolyte membrane, solid polymer electrolyte fuel cell using the membrane and method of fabricating the same'2006 6,881,792'Production processes for basic water-absorbent resin and water-absorbing agent, and use thereof'2005 6,867,269'Water-absorbent resin and production process therefor'2005 6,848,001'Logical path establishing method and storage medium'2005 6,736,003'Vehicle performance evaluation test method and apparatus'2004 6,687,521'Noninvasion biological optical measuring instrument, measured portion holding device, and method for manufacturing the same'2004 6,681,620'Vehicle performance evaluation test method and apparatus'2004 RE038327'Brake apparatus having an improved brake feel'2003 6,492,054'Polymer electrolyte fuel cell including a water-retaining layer on a ribbed plate'2002 6,471,691'Ophthalmic treatment apparatus'2002 6,383,676'Polymer electrolyte fuel cell device'2002 6,333,109'Water-swellable crosslinked polymer composition and production'2001 6,322,164'Braking device'2001 6,302,953'Pigment dispersions for color filters, fabrication process of color filters, and color filters'2001 6,299,676'Pigment dispersants, pigment dispersions and writing or recording pigment inks'2001 6,285,533'Method of and apparatus for controlling the operation of variable speed gearing'2001 6,254,990'Surface-crosslinking process for water-absorbent resin'2001 6,240,470'Magnetic disk control unit, and firmware active-interchange method therefor'2001 6,150,469'Method of producing a hydrophilic resin'2000 6,100,305'Method of production of water-absorbing resin'2000 5,961,711'Pigment dispersant, pigment dispersion, and pigment dispersion for color filter'1999 5,853,867'Absorbent composite, method for production thereof, and absorbent article'1998 5,814,434'Composition for black matrix, fabrication process of black matrix and article provided with black matrix'1998 5,771,773'Brake apparatus having an improved brake feel'1998 5,706,915'Brake disc rotor'1998 5,601,008'Vacuum servo unit for a vehicle braking system'1997 5,526,905'Brake disc rotor'1996 5,427,212'Brake disc rotor'1995 5,400,668'Superconducting magnet magnetically levitated transportation apparatus'1995 5,343,180'Coil structure and coil container'1994 5,026,780'Water swellable resin composition'1991 4,773,224'Portless type master cylinder device with non return valve and restricted passage in parallel between pressure chamber and fluid reservoir'1988 4,753,075'Portless type master cylinder device with intake valve and flow resisting means between pressure chamber and reservoir chamber'1988 4,736,768'Relief valve of hydraulic devices'1988 4,478,541'Tool mounting'1984 4,217,762'Ice making equipment'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–2020Based in Tokyo, JP· patent location history

1988–2004Patents assigned to TOYOTA MOTOR CO LTD (12)· patent assignee history

1991–2009Patents assigned to DAINICHISEIKA COLOR CHEM (11)· patent assignee history

1998–2020Patents assigned to NIPPON CATALYTIC CHEM IND (32)· patent assignee history

2000–2020Based in Himeji, JP· patent location history

2002–2015Based in Hamamatsu, JP· patent location history

2008–2013Based in Chuo-ku, JP· patent location history

2010–2020Based in Hyogo, JP· patent location history

2011–2017Patents assigned to SAKAMOTO SHIGERU (21)· patent assignee history

2017–2020Patents assigned to JAPAN DISPLAY INC (14)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON CATALYTIC CHEM IND	32	1998–2020
SAKAMOTO SHIGERUself	21	2011–2017
JAPAN DISPLAY INC	14	2017–2020
TOYOTA MOTOR CO LTD	12	1988–2004
DAINICHISEIKA COLOR CHEM	11	1991–2009

Locations

Location	Patents	Span
Himeji, JP	25	2000–2020
Tokyo, JP	18	1980–2020
Hyogo, JP	9	2010–2020
Hamamatsu, JP	9	2002–2015
Chuo-ku, JP	5	2008–2013