LexDanaLexDanabeta
Inventor

Akio Ogawa

Inventor
Tokyo, JP

Overview

43→
Patents
1988–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 43 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer15%
B24BMachines, devices, or processes for grinding or polishing11%
H10HInorganic light-emitting semiconductor devices having potential barriers9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h106%
A61BDiagnosis5%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%
C08LCompositions of macromolecular compounds5%
Y10TTechnical subjects covered by former us classification5%
A61LMethods or apparatus for sterilising materials or objects in general4%
PatentTitleYear
11,134,024Communication control device, switching device, out-of vehicle communication device, communication control method and communication control program202110,246,604Method for producing vinyl polymer-containing aqueous liquid and method for producing water/oil resistant agent20199,702,945'Magnetic measurement device'20179,488,828'Optical deflector apparatus capable of increasing offset deflecting amount of mirror'20169,436,000'Optical deflector including meander-type piezoelectric actuators and ill-balanced mirror structure'20169,354,285'Magnetic measurement device'20169,340,633'Treatment method for fluororesin pellets'20169,328,178'Method for producing ethylene-tetrafluoroethylene copolymer powder'20168,546,797'Zinc oxide based compound semiconductor device'20138,436,351'ZnO-containing semiconductor layer and ZnO-containing semiconductor light emitting device'20138,292,203'Method for granulating ethylene/tetrafluoroethylene copolymer'20128,143,618'ZnO based semiconductor device and its manufacture method'20128,138,754'Method and apparatus for testing characteristics of thin-film magnetic head'20128,039,867'ZnO-containing semiconductor layer, its manufacture method, and semiconductor light emitting device'20117,968,363'Manufacture method for ZnO based semiconductor crystal and light emitting device using same'20117,968,905'ZnO-containing semiconductor layer and ZnO-containing semiconductor light emitting device'20117,943,927'ZnO based semiconductor light emitting device and its manufacture method'20117,905,831'Endoscope washing/disinfecting system, endoscope, and endoscope washing/disinfecting device'20117,824,608'Method for dewatering endoscope channels'20107,728,347'ZnO layer and semiconductor light emitting device'20107,718,468'Manufacture method for ZnO-containing compound semiconductor layer'2010RE041329'Machining apparatus for workpiece and method therefor'2010D0569738'Antiseptic solution bottle'2008D0569737'Antiseptic solution bottle'20087,165,317'Electrode extension sheet for use in a lapping apparatus'20077,096,567'Method for measuring amount of grinding in magnetic head producing process'20067,023,132'Organic EL display element'20066,991,513'Magnetic head grinding device and method'20066,767,275'Machining apparatus for workpiece and method therefor'20046,758,721'Apparatus and method for lapping magnetic heads'20046,623,336'Magnetic head polishing device and method thereof'20036,565,414'Polishing apparatus for magnetic head and method therefor'20036,451,931'Reaction product of primary and tertiary amine-containing compound, dihydrazide an polyisocyanate'20026,217,425'Apparatus and method for lapping magnetic heads'20015,558,841'Washing/sterilizing apparatus for an endoscope and method for washing/sterilizing its water supplying system'19965,441,848'Optical recording/reproducing method'19955,419,939'Optical recording disk'19955,251,356'Device for cleaning pipe passages of medical devices'19935,208,088'Optical recording medium'1993D0331547'Fire detector'19925,075,411'Curable epoxy resin composition for structural parts containing polyamine derived mannich base and novolac or bisphenol F epoxy resin'19914,977,201'Polyvinyl chloride plastisol composition'19904,724,478'Cable television communication system with passive sensor signal path and a subscriber power supply source'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2002Based in Saitama, JP· patent location history
1992–2017Based in Tokyo, JP· patent location history
1993–2017Patents assigned to TDK CORP (15)· patent assignee history
1995Based in Nagano, JP· patent location history
2006–2016Patents assigned to STANLEY ELECTRIC CO LTD (12)· patent assignee history
2010–2016Based in Yamato, JP· patent location history
2012–2013Patents assigned to OGAWA AKIO (5)· patent assignee history
2012–2016Patents assigned to ASAHI GLASS CO LTD (3)· patent assignee history
2012–2013Patents assigned to KATO HIROYUKI (3)· patent assignee history
2021Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TDK CORP151993–2017
STANLEY ELECTRIC CO LTD122006–2016
OGAWA AKIOself52012–2013
ASAHI GLASS CO LTD32012–2016
KATO HIROYUKI32012–2013
Locations
LocationPatentsSpan
Tokyo, JP241992–2017
Yamato, JP102010–2016
Saitama, JP31990–2002
Nagano, JP21995
Osaka, JP12021