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Inventor

Tadashi Okano

Inventor
Hitachi, JP

Overview

36→
Patents
1990–2020
Patent span
Physics
Primary field (CPC G)

Patents· 36 as inventor

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

G03Gprimary
G03GElectrography46%
G10HElectrophonic musical instruments15%
B41JTypewriters7%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables5%
E04GScaffolding5%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them5%
G06FElectric digital data processing5%
H04NPictorial communication, e.g. television5%
B05BSpraying apparatus2%
B66CCranes2%
PatentTitleYear
10,672,372Tone setting device, electronic musical instrument system, and tone setting method20209,396,715'Technique for generating audio data for loop reproduction on the basis of performance data'20169,308,756'Image forming apparatus and method of setting print media'20168,865,994'Electronic music system'20148,746,684'Image forming apparatus'20148,303,096'Liquid supplying apparatus and image forming apparatus'20128,222,508'Tone signal creating apparatus and method'20128,032,057'Image forming apparatus'20117,957,670'Image forming apparatus, image forming method, and supporting mechanism'20117,941,069'Process cartridge having air inlets and outlets for cooling gears disposed in the process cartridge'20117,939,741'Electronic musical system and control method for controlling an electronic musical apparatus of the system'20117,899,360'Image forming apparatus, image forming method, and supporting mechanism'20117,888,580'Electronic musical system and control method for controlling an electronic musical apparatus of the system'20117,854,418'Image forming apparatus including supporting legs'20107,852,638'Frame, electronic device, image forming apparatus, and frame assembly method'20107,758,040'Sheet feed cassette and image forming apparatus using the same'20107,706,716'Image forming apparatus including structural frame'20107,689,142'Image forming apparatus, and processing unit and latent image writing device mounted therein'20107,580,653'Image forming unit and moving unit'20097,555,244'Image forming apparatus with a latent image writing unit positioned and biased against positioning errors'20097,292,805'Image forming apparatus having a sheet removal portion'20076,980,276'Luminous source apparatus, image projecting apparatus and image projection converting apparatus'20056,909,489'Luminous source apparatus, image projecting apparatus and image projection converting apparatus'20056,701,115'Color electrographic apparatus with developing device having separated toner supply and recovery chambers'20046,516,171'Color electrographic apparatus with developing device having separated toner supply and recovery chambers'20036,321,058'Developing device with toner storing and recovery chambers'20016,308,025'Electrophotography apparatus'20016,144,829'Developing device and electrophotographic device'20006,125,250'Developing device, developing method, and an image forming apparatus'20006,038,416'Developing apparatus and image forming apparatus having the same'20005,797,075'Image forming apparatus having improved toner carrier arrangement'19985,417,018'Construction apparatus for building and constructing method therewith'19955,358,568'Spraying apparatus'19945,255,489'Construction apparatus for buildings and constructing method therewith'19935,107,416'Arrangement for simultaneously dealing with transfer requests produced by central, arithmetic and input-output processors of a super computer'19924,953,720'Crane and method for using crane'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2010Based in Tokyo, JP· patent location history
1998–2004Patents assigned to HITACHI LTD (8)· patent assignee history
1998–2011Based in Hitachi, JP· patent location history
2005–2016Based in Kanagawa, JP· patent location history
2007–2012Based in Ibaraki, JP· patent location history
2009–2010Patents assigned to RICOH KK (5)· patent assignee history
2010–2016Patents assigned to RICOH CO LTD (9)· patent assignee history
2011–2020Patents assigned to YAMAHA CORP (6)· patent assignee history
2011–2020Based in Hamamatsu, JP· patent location history
2012–2016Patents assigned to OKANO TADASHI (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD92010–2016
HITACHI LTD81998–2004
YAMAHA CORP62011–2020
OKANO TADASHIself52012–2016
RICOH KK52009–2010
Locations
LocationPatentsSpan
Hitachi, JP101998–2011
Ibaraki, JP92007–2012
Hamamatsu, JP62011–2020
Tokyo, JP61990–2010
Kanagawa, JP42005–2016