LexDanaLexDanabeta
Inventor

Keiichi Shimizu

Inventor
Yokohama, JP

Overview

112→
Patents
1981–2019
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 112 as inventor

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

H05Bprimary
H05BElectric heating10%
F21VFunctional features or details of lighting devices or systems thereof9%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted9%
Y10TTechnical subjects covered by former us classification7%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications7%
F21KNon-electric light sources using luminescence6%
F21SNon-portable lighting devices5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
H01HElectric switches3%
H01RElectrically-conductive connections3%
PatentTitleYear
10,518,564Air filter and image forming apparatus incorporating same20199,880,512'Image forming apparatus including an outer cover and a subsidiary cover'20189,706,608'Straight tube LED lamp, lamp socket set, and lighting fixture'20179,527,692'Image forming apparatus'20169,491,320'Impact reduction device and image forming apparatus'20168,963,190'Light-emitting device and lighting apparatus'20158,899,795'Lamp device and lighting fixture including LED as light source and metallic cover'20148,901,848'Lighting apparatus'20148,895,881'Power window switch'20148,894,254'Luminaire and lamp apparatus housing'20148,864,511'Tube lamp and luminaire'20148,829,817'Power supply device and lighting equipment'20148,827,506'Luminaire'20148,803,442'Illuminating device'20148,803,441'Illuminating device'20148,791,651'Illuminating device'20148,721,125'Self-ballasted lamp and lighting equipment'20148,714,785'Cap, socket device, and luminaire'20148,664,857'Lighting device'20148,613,529'Lighting fixture'20138,587,218'Illuminating device'20138,575,859'Illuminating device'20138,567,990'Light emitting diode (LED) bulb'20138,540,396'Lighting system'20138,540,399'Socket device'20138,536,800'Illuminating device and controlling method thereof'20138,523,402'Socket device'20138,476,840'LED lighting device and lighting equipment'20138,450,943'Illuminating device and controlling method thereof'20138,439,521'Light-emitting module and luminaire'20138,441,208'Light emitting module and illuminating device'20138,434,908'Socket device'20138,430,535'Socket device, lamp device and lighting device'20138,427,059'Lighting device'20138,388,189'Socket device'20138,354,804'Power supply device and lighting equipment'20138,197,086'Lighting fixture'20128,188,680'Illuminating device'2012D0656262'Recess lighting fixture'20128,079,736'Lighting apparatus'20118,057,072'Light-emitting module and illumination apparatus'20118,047,687'Lighting apparatus'20118,042,973'Lighting apparatus'20117,952,295'Illuminating device'2011D0623593'Lamp socket'20107,787,476'Layer 2 switch network system'2010D0618827'Light emitting diode module'20107,722,213'Lighting apparatus'20107,714,042'Coating composition for cans'2010D0610289'Recessed lighting fixture'20107,550,690'Electric-circuit-containing box'20097,486,670'Method for packet communication and computer program stored on computer readable medium'20097,464,177'Mobile network that routes a packet without transferring the packet to a home agent server'2008D0574541'Recessed lighting fixture'20087,369,492'Radio area network control system and a wide area radio area network control system'20087,321,577'Mobility management system by distributed mobile IP'20087,297,884'Switching arrangement'20077,295,785'Receiver, electronic apparatus, and discharge lamp lighting apparatus'20077,294,801'Switching device'20077,211,970'Discharge lamp lighting device and lighting unit'20077,161,320'Control device'20077,145,090'Switching device'2006D0517725'Lens for light-emitting device'2006D0517227'Light emitting diode lamp'20066,987,771'Route optimization method and agent apparatus'20066,969,812'Switch device'20056,864,454'Switch apparatus'2005D0502284'Reflector for lighting device'20056,774,329'Switch device'20046,724,164'Opening-and-closing member control device'20046,697,741'Method and system for evaluating and monitoring hydraulic pump noise levels'20046,548,964'Discharge lamp lighting apparatus and luminaire using the same'20036,512,610'Device and method for testing of multi-branch optical network'20036,475,597'Thermoplastic resin-coated aluminum alloy plate and method and apparatus for manufacturing the same'20026,270,589'Method of manufacturing resin coated aluminum alloy plates for drawn and ironed cans'20016,267,826'Process for producing resin-coated aluminum alloy sheet for drawn/ironed cans'20016,238,783'Thermoplastic resin coated aluminum alloy sheet, and method and apparatus for production thereof'20016,177,768'Discharge lamp lighting device and illumination device'20016,099,953'Thermoplastic resin-coated aluminum alloy plate, and process and apparatus for producing the same'20006,005,201'Switch'19995,950,468'Resin film laminated steel sheet for can by dry forming'19995,951,145'Lighting apparatus'19995,939,836'Discharge lamp lighting apparatus and lighting apparatus'19995,840,384'Aqueous coating composition for exterior surface of can'19985,777,861'Power supply apparatus having high power-factor and low distortion-factor characteristics'19985,737,207'Power supply'19985,686,194'Resin film laminated steel for can by dry forming'19975,544,517'Method of redrawing a predrawn coated metal can'19965,453,667'Inverter having frequency changing function'19955,334,915'Operating circuit arrangement for a discharge lamp'19945,303,140'Power source circuit'19945,265,319'Drawn and ironed can made of a high strength steel sheet'19935,231,915'Wobble plate type compressor having cantilevered drive mechanism'19935,087,862'Discharge lamp lighting apparatus for controlling voltage of switching transistor by raising starting voltage'19925,036,254'Inverter having a broad output-control range'19914,992,702'Inverter capable of controlling operating frequency'19914,961,029'Discharge lamp lighting device'19904,956,242'Steel foil for drawing container with organic film coat'19904,893,993'Lubrication system for a refrigerant compressor'19904,709,931'Seal for dampers on motor vehicles'19874,700,186'Radio wave signal controlled door lock arrangement'19874,603,563'Magnetic door locking system'19864,596,608'Method of manufacturing of steel sheet for easy open end can with superior openability'19864,562,717'Drawing punch for drawing foil'19864,516,415'Steering lock for automobiles'19854,495,786'Steering lock for automotive vehicles'19854,478,445'Door handle assembly'19844,477,806'Mischief preventive electronic lock device'19844,463,349'Electronic lock system with audible entry monitor'19844,455,588'Electronical unlocking method and system'19844,419,712'Electronic door locking system for an automotive vehicle'19834,264,895'Multi-stage switching network controlled by at least three logical inputs'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2010Based in Tokyo, JP· patent location history
1986–2002Patents assigned to TOYO KOHAN CO LTD (12)· patent assignee history
1990–2014Based in Yokohama, JP· patent location history
1991–2017Patents assigned to TOSHIBA LIGHTING & TECHNOLOGY (59)· patent assignee history
1998–2015Based in Yokosuka, JP· patent location history
1999–2019Based in Kanagawa, JP· patent location history
2004–2014Based in Kasugai, JP· patent location history
2011–2019Patents assigned to SHIMIZU KEIICHI (36)· patent assignee history
2011–2013Patents assigned to OTAKE HIROKAZU (14)· patent assignee history
2013–2014Patents assigned to KAWANO HITOSHI (11)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOSHIBA LIGHTING & TECHNOLOGY591991–2017
SHIMIZU KEIICHIself362011–2019
OTAKE HIROKAZU142011–2013
TOYO KOHAN CO LTD121986–2002
KAWANO HITOSHI112013–2014
Locations
LocationPatentsSpan
Yokohama, JP251990–2014
Kanagawa, JP211999–2019
Tokyo, JP211983–2010
Yokosuka, JP91998–2015
Kasugai, JP92004–2014