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Inventor

Sadao Takahashi

Inventor
Tokyo, JP

Overview

72→
Patents
1977–2021
Patent span
Physics
Primary field (CPC G)

Patents· 72 as inventor

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

G03Gprimary
G03GElectrography13%
G06KGraphical data reading11%
G06VImage or video recognition or understanding10%
G06TImage data processing or generation, in general9%
H04NPictorial communication, e.g. television9%
G08GTraffic control systems5%
B41MPrinting, duplicating, marking, or copying processes4%
G06FElectric digital data processing4%
Y10TTechnical subjects covered by former us classification3%
H03HImpedance networks, e.g. resonant circuits2%
PatentTitleYear
11,011,751Positive electrode active material for lithium ion secondary battery, manufacturing method thereof, and lithium ion secondary battery202110,853,963Object detection device, device control system, and medium202010,810,749Image processing apparatus, moving body device control system, computer-readable medium, and image processing method202010,762,656Information processing device, imaging device, apparatus control system, information processing method, and computer program product202010,755,116Image processing apparatus, imaging apparatus, and device control system202010,748,014Processing device, object recognition apparatus, device control system, processing method, and computer-readable recording medium202010,733,459Image processing device, image processing method, computer-readable recording medium, object recognition device, device control system, and movable body202010,679,388Image processing apparatus, device control system, imaging apparatus, and recording medium202010,672,141Device, method, system and computer-readable medium for determining collision target object rejection202010,520,309Object recognition device, object recognition method, equipment control system, and distance image generation device201910,402,664Processing apparatus, processing system, processing program, and processing method20199,330,320'Object detection apparatus, object detection method, object detection program and device control system for moveable apparatus'20168,825,682'Architecture for mixed media reality retrieval of locations and registration of images'20148,760,558'Compound lens imaging device'20148,593,536'Image pickup apparatus with calibration function'20137,982,141'Coordinate detecting device, writing instrument, and coordinate inputting system'20117,973,960'Document processing system'20117,787,712'Electronic document creating apparatus'20107,712,664'2-dimensional code pattern, 2-dimensional code pattern supporting medium, 2-dimensional code pattern generating method, and 2-dimensional code reading apparatus and method'20107,623,727'Image binarization apparatus, image binarization method, image pickup apparatus, image pickup method, and a computer product'20097,505,160'Paper identification information management system'20097,489,415'Document processing system'20097,012,719'Sign sensitive aperture correction system and method'20066,959,866'2-Dimensional code pattern, 2-dimensional code pattern supporting medium, 2-dimensional code pattern generating method, and 2-dimensional code reading apparatus and method'20056,948,654'Data sheet and information management system using data sheet'20056,935,565'Imaging method, imaging apparatus, and image information management system'20056,898,329'Image binarization apparatus, image binarization method, image pickup apparatus, image pickup method, and a computer product'20056,744,916'Image processing apparatus and method for interpolating missing pixels'20046,651,894'Imaging method, imaging apparatus, and image information management system'20036,634,559'Data sheet and information management system using data sheet'2003RE037645'Method and apparatus for removing image forming substance from image holding member forming processing situation mark'2002RE036963'Method and apparatus for regenerating image holding member'20006,095,164'Method and apparatus for removing image forming substance from image holding member'20006,097,914'Image bearing member and method of manufacturing the member and image forming apparatus using the member'20006,047,758'Method for repeatedly using image holding member'20005,911,004'Image processing apparatus for discriminating image characteristics using image signal information obtained in an image scanning operation'19995,825,937'Spatial-filtering unit for performing adaptive edge-enhancement process'19985,807,450'Apparatus for binding wires of a wire harness'19985,805,954'Image forming apparatus that detects environmental conditions'19985,782,032'Coal gasification furnace with a slag tap hole of specific shape'19985,753,400'Method for repeatedly using image holding member'19985,673,475'Wire-length measuring apparatus'19975,610,691'Image forming apparatus having a contact charging member and a cleaning member'19975,605,777'Method and apparatus for regenerating image holding member'19975,585,896'Image forming apparatus with a contact member contacting an image carrier'19965,574,538'Method and apparatus for removing image forming substance from image holding member forming processing situation mark'19965,572,293'Method of and system for cleaning a charge inducing member'19965,557,373'Cleaning system for charging drum of an image forming apparatus'19965,547,793'Method for using image support regeneratively and tool for forming image on image support'19965,512,708'Toner used in an image forming apparatus'19965,483,738'Apparatus for making electrical harness having wire measuring apparatus equipped with anti-curling means'19965,394,231'Image forming apparatus capable of forming an erasable image'19955,321,483'Cleaning device for image forming equipment'19945,083,020'Mass spectrometer'19925,016,237'Prism optics stable with respect to wavelength and temperature variations and optical information processing apparatus'19914,884,396'Desulfurizing agent and process for treating hydrogen sulfide containing gas, coal gasification system and power generation system based on coal gasification using the desulfurizing agent'19894,803,355'Mass spectrometer'19894,791,454'Removable photoconductive element unit for image-forming apparatus'19884,760,331'Spectrum display device'19884,746,467'Process for producing microcapsules'19884,634,264'Photosensitive member of recording apparatus'1987D0286541'Photoconductor unit for copying machine'19864,563,076'Imaging apparatus'19864,427,642'Process for dry desulfurization of flue gas'19844,412,848'Heat recovery method from gasified products of hydrocarbon'19834,404,620'Luminaire'19834,346,322'Elastic surface wave device'19824,256,963'Mass spectrometer'19814,245,201'Elastic surface wave device'19814,245,200'Method of intermediate frequency filtration in a television receiver'19814,163,201'Elastic surface wave device'19794,019,054'Apparatus for fixing toner images'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–2010Patents assigned to RICOH KK (36)· patent assignee history
1977–2021Based in Tokyo, JP· patent location history
1979–1982Patents assigned to TOKYO SHIBAURA ELECTRIC CO (4)· patent assignee history
1981–1998Patents assigned to HITACHI LTD (7)· patent assignee history
1981–1992Based in Katsuta, JP· patent location history
1983–1998Based in Hitachi, JP· patent location history
1983–2010Based in Yokohama, JP· patent location history
1986–2020Patents assigned to RICOH CO LTD (17)· patent assignee history
2003–2020Based in Kanagawa, JP· patent location history
2013–2020Patents assigned to TAKAHASHI SADAO (7)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK361977–2010
RICOH CO LTD171986–2020
HITACHI LTD71981–1998
TAKAHASHI SADAOself72013–2020
TOKYO SHIBAURA ELECTRIC CO41979–1982
Locations
LocationPatentsSpan
Tokyo, JP311977–2021
Kanagawa, JP242003–2020
Hitachi, JP41983–1998
Katsuta, JP41981–1992
Yokohama, JP31983–2010