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Inventor

Nobuaki Kubo

Inventor
Tokyo, JP

Overview

40→
Patents
1989–2018
Patent span
Physics
Primary field (CPC G)

Patents· 40 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus21%
B41JTypewriters16%
G03GElectrography11%
C08LCompositions of macromolecular compounds9%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%
H04NPictorial communication, e.g. television7%
G06KGraphical data reading5%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%
C09JAdhesives4%
B01FMixing, e.g. dissolving, emulsifying or dispersing2%
PatentTitleYear
10,138,319Polymer and asphalt composition20189,925,798'Optical scanning apparatus and image forming device'20189,625,711'Optical scanning apparatus and image forming device'2017RE045945'Image forming apparatus and scanning unit to scan a target surface using light fluxes'20168,922,863'Optical scanning device and image forming apparatus'20148,848,013'Optical scanning device and image forming apparatus including a plurality of scanned members'20148,848,009'Optical scanning device and image forming apparatus'20148,786,658'Exposure device and image forming apparatus'20148,730,290'Light source device with light source and light-receiving element fixed to each other'20148,559,053'Optical scanning device and image forming device'20138,531,766'Polarization-separation device, optical scanning apparatus, and image forming apparatus'20138,466,947'Light source device, optical scanning device, and image forming apparatus'20138,451,307'Optical scanning device and image forming apparatus'20138,368,736'Optical scanning device and image forming apparatus'20138,199,179'Image forming apparatus and scanning unit to scan a target surface using light fluxes'20128,169,457'Light source apparatus, optical-beam scanning apparatus, and image forming apparatus'20128,143,603'Electrostatic latent image measuring device'20128,102,411'Optical scanner and image forming apparatus'20127,999,985'Optical scanning device and image forming apparatus'20117,800,641'Light source unit, optical scan apparatus, and image formation apparatus'20107,710,445'Light source unit, optical scan apparatus, and image formation apparatus'20107,642,317'Modified block copolymer'20107,642,318'Modified block copolymer'20107,545,547'Scanning unit and image forming apparatus'20097,414,093'Modified block copolymer'20087,323,512'Styrene copolymer composition'20087,301,554'Light scanning device, scanning line adjusting method, scanning line adjusting control method, image forming apparatus, and image forming method'20077,256,238'Modified block copolymer'20077,122,594'Modified block copolymer composition'20066,969,739'Rubber composition'20056,744,513'Computer color matching method of paint and preparing method of paint using the same method'20046,660,790'Styrene polymer composition'20036,376,837'Optical scanning apparatus and image forming apparatus having defective light source detection'20026,029,853'Dispersing method, dispersing apparatus and dispersing system having dispersing apparatus'20005,374,980'Color image forming apparatus utilizing liquid development'19945,294,944'Color image forming apparatus having means for properly superimposing image colors on each other'19945,059,774'Seek and track control for a rectangular optical card handling apparatus'19914,968,997'Recording sheet conveyor apparatus in an image recording apparatus'19904,962,431'Synchronizing signal generating system for laser scanner'19904,867,573'Powder treating method and apparatus used therefor'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2004Based in Osaka, JP· patent location history
1990–2010Patents assigned to RICOH KK (10)· patent assignee history
1990–1994Based in Urawa, JP· patent location history
2000Based in Hirakata, JP· patent location history
2002–2018Based in Tokyo, JP· patent location history
2003–2010Based in Kawasaki, JP· patent location history
2011–2018Patents assigned to RICOH CO LTD (18)· patent assignee history
2012–2018Patents assigned to KUBO NOBUAKI (16)· patent assignee history
2012–2018Patents assigned to WATANABE NAOTO (7)· patent assignee history
2013–2018Patents assigned to TOKITA TOSHIAKI (9)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD182011–2018
KUBO NOBUAKIself162012–2018
RICOH KK101990–2010
TOKITA TOSHIAKI92013–2018
WATANABE NAOTO72012–2018
Locations
LocationPatentsSpan
Tokyo, JP242002–2018
Kawasaki, JP82003–2010
Urawa, JP41990–1994
Osaka, JP21989–2004
Hirakata, JP12000