LexDanaLexDanabeta
Inventor

Keita Takahashi

Inventor
Abiko, JP

Overview

131→
Patents
1991–2021
Patent span
Physics
Primary field (CPC G)

Patents· 131 as inventor

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

G03Gprimary
G03GElectrography15%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables8%
H10BElectronic memory devices8%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%
H10DInorganic electric semiconductor devices6%
H01LSemiconductor devices5%
H04NPictorial communication, e.g. television5%
G11CStatic stores4%
G02BOptical elements, systems or apparatus3%
C09KMaterials for miscellaneous applications, not provided for elsewhere3%
PatentTitleYear
11,070,755Imaging device and signal processing device202110,782,567Optical film, polarizing plate, image display device, polymerizable compound, and method for manufacturing 1,4-cyclohexanedicarboxylic acid monoaryl ester202010,774,212Thermally conductive material, resin composition, and device202010,752,820Surface-modified inorganic nitride, composition, thermally conductive material, device with thermally conductive layer, and method for manufacturing surface-modified inorganic nitride202010,752,778Resin composition containing surface-modified inorganic substance, thermally conductive material, and device202010,689,575Optical film, polarizing plate, and image display device202010,684,576Image forming apparatus having monochrome mode and color mode202010,638,602In-vehicle electronic device202010,633,252Surface-modified inorganic substance, method for manufacturing same, resin composition, thermally conductive material, and device202010,475,785Semiconductor device201910,439,209Electrode and non-aqueous electrolyte secondary battery201910,395,149Image forming apparatus having print job time display and image quality adjustment control201910,308,458Image forming apparatus201910,294,372Surface-modified inorganic substance, method for manufacturing surface-modified inorganic substance, method for modifying surface of inorganic substance with organic substance, heat dissipation material, thermally conductive material, and lubricant201910,239,717Image forming apparatus, image forming method, and sheet-feeding apparatus201910,241,460Image forming apparatus201910,218,259Power conversion device201910,199,452Semiconductor device201910,191,424Image forming apparatus for controlling switching from monochrome image forming mode to color image forming mode201910,181,095Preparation operation for image forming apparatus201910,177,674Power circuit device201910,088,486Method for detecting neurological disease accompanied by inflammation and/or demyelination201810,084,388Power conversion device201810,059,877Optically anisotropic layer, method for producing the optically anisotropic layer, a laminate, polarizing plate, display device, liquid crystal compound, method for producing the liquid crystal compound, and carboxylic acid compound201810,052,677Spring forming device and forming method therefor201810,044,883Image forming apparatus201810,031,450Image forming apparatus201810,018,958Misattachment prevention device for image forming unit, image forming unit and image forming apparatus20189,963,313Sheet feeding apparatus having containing area for feeding sheet and containing area for replenishing sheet, and image forming apparatus20189,927,753'Image forming apparatus'20189,879,869'Partition member for total heat exchange element, total heat exchange element using this member, and total heat exchange type ventilation device'20189,871,934'Image forming apparatus'20189,823,610'Image forming apparatus'20179,815,646'Image forming apparatus'20179,776,449'Post-processing apparatus and image forming system including the post-processing apparatus'20179,752,636'Helical compression spring and method for manufacturing same'20179,747,979'Nonvolatile semiconductor storage device including cell transistor performance measuring cells'20179,714,148'Image forming apparatus'20179,646,927'Power semiconductor device'20179,576,948'Semiconductor device'20179,505,581'Post-processing apparatus and image forming system including the post-processing apparatus'20169,343,115'Nonvolatile semiconductor memory device'20169,337,331'Semiconductor device'20169,324,010'Image forming apparatus'20169,150,376'Image forming apparatus capable of forming images in double-sided mode'20159,142,613'Semiconductor device'20159,093,523'Switching element and a diode being connected to a power source and an inductive load'20159,090,802'Polarizing plate, image display apparatus including the same, and adhesive composition'20159,083,824'Image forming apparatus for detecting an abnormality'20159,075,628'Electronic system and communication control method for transmitting and receiving data by serial communication'20158,989,203'Electronic device, communication control method, and recording medium'20158,892,932'Image forming apparatus and control apparatus'20148,836,025'Semiconductor device'20148,823,973'Image forming apparatus for starting a preparation operation without receiving information about an accessory device'20148,804,154'Image forming apparatus'20148,741,513'Method for preparing alizarin derivative compound, novel alizarin derivative compound, surface modification method, photoelectric conversion film, photoelectric conversion element, and electrophotographic photoreceptor'20148,692,610'Reference voltage supply circuit'20148,615,675'Image forming apparatus'20138,605,306'Image forming apparatus'20138,576,427'Image forming apparatus implemented by a distributed control system'20138,561,978'Image forming system'20138,503,013'Image forming apparatus'20138,488,008'Image pickup apparatus and camera shake correcting apparatus applied to image pickup apparatus'20138,473,763'Image forming apparatus'20138,421,153'Semiconductor device'20138,400,561'Digital camera having a shock absorbing member'20138,341,461'Image forming apparatus'20128,272,640'Medium conveyance apparatus which adopts distributed control system'20128,264,714'Sheet conveyance system, control program thereof, and sheet conveyance method'20128,192,284'Method, storage medium, and apparatus for generating image of virtual space'20128,180,234'Image forming apparatus with control causing issuance of predetermined information based on sheet information'20128,042,797'Sheet feeding apparatus and image forming apparatus'20118,026,552'Protection element and fabrication method for the same'20118,013,378'Memory device having additional selection transistors and main bit lines'20117,978,264'Digital camera'20117,965,955'Image forming apparatus'20117,951,679'Method for fabricating semiconductor device'20117,948,800'Semiconductor memory device and driving method for the same'20117,941,089'Image forming system and clear coating apparatus'20117,924,463'Image processing apparatus and control method thereof'20117,860,447'Curling device and image forming apparatus'20107,821,100'Semiconductor device and method for manufacturing the same'20107,791,121'Nonvolatile semiconductor memory device and method for fabricating the same'20107,792,446'Image heating apparatus with controller for changing time duration of pressing belt with fixing member'20107,709,898'Semiconductor protection circuit, method for fabricating the same and method for operating semiconductor protection circuit'20107,676,166'Image forming apparatus'20107,651,396'Method, storage medium, apparatus, data signal and program for generating image of virtual space'20107,568,510'Bookbinding apparatus, control method therefor, image forming apparatus, and control method therefor'20097,518,180'Nonvolatile semiconductor memory device and method for fabricating the same'20097,511,900'Lens barrel'20097,510,937'Nonvolatile semiconductor memory device and fabrication method for the same'20097,474,548'Semiconductor memory device and method for manufacturing the same'20097,439,577'Semiconductor memory and method for manufacturing the same'20087,424,235'Image forming apparatus'20087,421,220'Image forming apparatus with fixing control based on recording material type'20087,413,177'Sheet processing apparatus, method of controlling the sheet processing apparatus, control program for implementing the method, and storage medium storing the control program'20087,402,104'Game performing method, game apparatus, storage medium, data signal and program'20087,391,980'Image forming apparatus includes a fixation device control based on a sheet-type when a jam occurs'20087,389,084'Image forming system with temporary storage trays between sheet storage units and image forming apparatus'20087,380,780'Sheet supplying apparatus and image forming system'20087,339,233'Nonvolatile semiconductor memory device and manufacturing method thereof'20087,327,967'Image heating apparatus with variable timing'20087,283,759'Image forming apparatus with heating member control in accordance with type of recording material'20077,280,777'Image forming apparatus with fixing control based on recording material type'20077,050,751'Image forming system with temporary storage trays between sheet storage units and image forming apparatus'20066,989,944'Camera'20066,899,472'Electromagnetic drive'20056,813,093'Lens barrel'20046,809,366'Non-volatile semiconductor memory device'20046,657,893'Nonvolatile semiconductor memory device and method for driving the same'20036,505,005'Camera which is pleasing in appearance, which can be easily assembled, and in which appearance portions such as a window for a range-measuring unit are fixed without being deformed'20036,501,683'Nonvolatile semiconductor memory device'20026,472,707'Semiconductor memory device'20026,472,281'Method for fabricating semiconductor device using a CVD insulator film'20026,397,010'Camera'20026,377,490'Nonvolatile semiconductor memory device and method for driving the same'20026,310,800'Non-volatile semiconductor memory device and method for driving the same'20016,190,059'Camera'20016,169,307'Nonvolatile semiconductor memory device comprising a memory transistor, a select transistor, and an intermediate diffusion layer'20016,147,903'Non-volatile semiconductor memory device and method for driving the same'20006,069,826'Method of rewriting in nonvolatile semiconductor memory device'20006,022,777'Method of making semiconductor device'20005,987,268'Film loading device having cartridge positioning shaft for camera'19995,739,962'Lens mount'19985,732,297'Camera'19985,727,245'Camera'19985,678,093'Camera'19975,661,609'Lens mount'19975,440,364'Film loader'19955,376,982'Film loading mechanism of a camera'19945,075,708'Camera'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2005Patents assigned to OLYMPUS OPTICAL CO (13)· patent assignee history
1991–1998Based in Hachioji, JP· patent location history
1998–2020Based in Kanagawa, JP· patent location history
2000–2017Based in Nara, JP· patent location history
2006–2021Patents assigned to CANON KK (54)· patent assignee history
2007–2020Based in Abiko, JP· patent location history
2009–2014Patents assigned to PANASONIC CORP (11)· patent assignee history
2012–2015Patents assigned to TAKAHASHI KEITA (19)· patent assignee history
2013–2019Based in Yokohama-shi, Kanagawa, JP· patent location history
2014–2020Patents assigned to FUJIFILM CORP (10)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK542006–2021
TAKAHASHI KEITAself192012–2015
OLYMPUS OPTICAL CO131991–2005
PANASONIC CORP112009–2014
FUJIFILM CORP102014–2020
Locations
LocationPatentsSpan
Abiko, JP502007–2020
Nara, JP232000–2017
Kanagawa, JP151998–2020
Yokohama-shi, Kanagawa, JP82013–2019
Hachioji, JP71991–1998