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Inventor

Yoshihisa Ohta

Inventor
Tokyo, JP

Overview

21→
Patents
1997–2015
Patent span
Chemistry
Primary field (CPC C)

Patents· 21 as inventor

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

B41Jprimary
B41JTypewriters27%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices8%
H04NPictorial communication, e.g. television8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
C10MLubricating compositions5%
A61LMethods or apparatus for sterilising materials or objects in general3%
B41MPrinting, duplicating, marking, or copying processes3%
C08JWorking-up3%
PatentTitleYear
8,951,353'Manufacturing method and apparatus for semiconductor device'20158,804,219'Image processing apparatus, image processing method, and computer-readable recording medium storing image processing program for color conversion of image data'20148,416,459'Image processing apparatus, image processing method, program, recording medium, printing system, image forming apparatus'20138,256,862'Formation of image by image forming apparatus with overlapping area'20128,141,982'Color imaging apparatus having yellow nozzle array and magenta nozzle array on same head and shifted relative to each other by a half-pitch'20128,011,756'Imaging method and inkjet recording apparatus'20117,690,763'Color imaging apparatus configured to reduce bidirectional color difference'20107,600,842'Image reproducing and forming apparatus, printer driver and data processing apparatus'20097,527,351'Image forming apparatus, liquid discharging head, image forming method, recorded matter, and recording liquid'20097,361,712'Water absorbing agent, process for its production, and absorbers and absorbent articles made by using the agent'20087,122,226'Liquid crystal aligning agent'20066,991,324'Solution injector head, functional layer forming apparatus and liquid crystal display'20066,576,393'Composition for resist underlayer film and method for producing the same'20036,468,714'Negative radiation-sensitive resin composition'20026,331,052'Ink jet printing apparatus'20016,109,728'Ink jet printing head and its production method'20005,952,150'Radiation sensitive resin composition'19995,818,482'Ink jet printing head'19985,773,532'Process for producing a polyorganosiloxane-based thermoplastic resin'19985,763,374'Lubricating oil compositions of reduced high-temperature high-shear viscosity'19985,622,924'Viscosity index improver and lubricating oil'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997–1998Based in Kyoto, JP· patent location history
1998–2010Patents assigned to RICOH KK (6)· patent assignee history
1998–2006Based in Yokkaichi, JP· patent location history
1998–2000Based in Machida, JP· patent location history
1999–2006Patents assigned to JSR CORP (5)· patent assignee history
2006–2014Based in Tokyo, JP· patent location history
2011–2014Patents assigned to RICOH CO LTD (5)· patent assignee history
2012–2015Patents assigned to OHTA YOSHIHISA (5)· patent assignee history
2012–2014Patents assigned to KIMURA TAKASHI (4)· patent assignee history
2015Based in Numazu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK61998–2010
JSR CORP51999–2006
OHTA YOSHIHISAself52012–2015
RICOH CO LTD52011–2014
KIMURA TAKASHI42012–2014
Locations
LocationPatentsSpan
Tokyo, JP102006–2014
Yokkaichi, JP41998–2006
Machida, JP21998–2000
Kyoto, JP21997–1998
Numazu, JP12015