LexDanaLexDanabeta
Inventor

Atsushi Fukumoto

Inventor
Kanagawa, JP

Overview

103→
Patents
1988–2021
Patent span
Physics
Primary field (CPC G)

Patents· 103 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 transducer23%
H04LTransmission of digital information, e.g. telegraphic communication6%
H10BElectronic memory devices6%
H04WWireless communication networks6%
H10DInorganic electric semiconductor devices5%
C22CAlloys4%
Y10TTechnical subjects covered by former us classification4%
B23KSoldering or unsoldering3%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application3%
G03HHolographic processes or apparatus3%
PatentTitleYear
11,090,749Aluminum alloy brazing sheet, method for manufacturing the same, aluminum alloy sheet, and heat exchanger202110,857,629Aluminum alloy brazing sheet202010,737,357Brazing sheet, manufacturing method thereof, and aluminum structure brazing method202010,436,528Aluminum alloy brazing sheet and method for producing same201910,438,966Semiconductor device201910,186,521Semiconductor device and method for manufacturing semiconductor device201910,161,693Aluminum alloy fin material for heat exchangers, and method of producing the same201810,145,630Aluminum alloy fin material for heat exchangers, and method of producing the same201810,099,320High corrosion-resistant aluminum alloy brazing sheet and channel forming component for vehicular heat exchanger using same20189,964,757Laser scanning microscope apparatus and control method20189,774,417'Polarization splitting multiplexing device, optical system, and display unit'20179,728,552'Semiconductor memory device having voids between word lines and a source line'20179,478,416'Semiconductor manufacturing apparatus and method of manufacturing semiconductor device'20169,209,295'Semiconductor memory device and method for manufacturing the same'20158,546,786'Stacked multiple cell nonvolatile memory device'20138,466,435'Fine particle measuring device'20138,406,501'Method and system for inspection of tube width of heat exchanger'20138,384,045'Minute particle analyzing device and method'20138,350,232'Microparticle analysis device and microparticle analysis method'20138,324,597'Light detection device'20128,305,668'Recording and reproducing device, recording and reproducing method, recording device, recording method, reproducing device and reproducing method'20128,142,907'Aluminum alloy brazing sheet having high-strength and production method therefor'20128,144,379'Recording and reproducing device and polarization direction controlling method'20128,141,619'Fin inspection method of a heat exchanger'20128,134,765'Hologram recording and reconstruction apparatus'20128,115,245'Nonvolatile memory device'20128,077,563'Beam applying method, optical recording medium, and recording and reproducing apparatus'20117,986,000'Semiconductor device and method of manufacturing the same'20117,965,607'Hologram recording/reproducing device and recording/reproducing optical apparatus'20117,911,916'Beam applying method, beam applying apparatus, and optical recording medium'20117,771,839'Aluminum alloy brazing sheet'20107,763,560'Catalyst for purifying diesel engine exhaust gas and method for production thereof'20107,738,341'Recording and reproducing apparatus, recording and reproducing method, reproducing apparatus, and reproducing method'20107,704,473'Method and device for controlling exhaust emission from internal combustion engine'20107,684,097'Recording apparatus and phase modulation device'20107,606,133'Hologram recording/reproducing device and hologram reproducing device'20097,586,939'Mobile IP communication scheme for supporting mobile computer move over different address spaces'20097,355,952'Liquid crystal device, its driving method, and driving apparatus'20087,283,286'Hologram recording/reproducing device and optical unit'20077,200,094'Reproduced signal evaluation apparatus and method, reproduction apparatus and method, and recording apparatus and method'20077,123,604'Mobile IP communication scheme incorporating individual user authentication'20067,020,120'Mobile IP communication scheme using dynamic address allocation protocol'20066,985,428'Optical recording medium, recording, and reproduction apparatus having multiple recording capacity features'20066,980,508'Optical recording medium, recording, and reproduction apparatus having multiple recording capacity features'20056,973,068'Mobile IP communication scheme incorporating individual user authentication'20056,944,181'Mobile IP communication scheme for supporting mobile computer move over different address spaces'20056,940,800'Reproduced signal evaluation apparatus and method, reproduction apparatus and method, and recording apparatus and method'20056,934,274'Mobile IP communication scheme using dynamic address allocation protocol'20056,891,819'Mobile IP communications scheme incorporating individual user authentication'20056,885,628'Optical recording medium, recording, and reproduction apparatus having multiple recording capacity features'20056,829,205'Optical pickup, tilt detection apparatus, tilt detection method and optical disk apparatus'20046,781,930'Diffraction grating, optical pick-up, error signal detection device, and error signal detection method'20046,775,221'Optical pickup and recording and/or reproducing apparatus'20046,635,920'Non-volatile semiconductor memory device and manufacturing method thereof'20036,587,882'Mobile IP communication scheme using visited site or nearby network as temporal home network'20036,510,153'Mobile IP communication scheme using dynamic address allocation protocol'20036,501,767'Mobile IP communication scheme for supporting mobile computer move over different address spaces'20026,493,296'Optical disc inclination detecting method, optical pickup device, and optical disc device'20026,441,426'Nonvolatile semiconductor memory device and method of manufacturing the same'20026,434,108'Optical disc having narrow recording track relative to light spot diameter'20026,421,304'Magneto-optical reproducing apparatus using magnetic wall displacement detector'20026,240,514'Packet processing device and mobile computer with reduced packet processing overhead'20016,236,081'AND-type non-volatile semiconductor memory device and method of manufacturing thereof'20016,170,057'Mobile computer and method of packet encryption and authentication in mobile computing based on security policy of visited network'20016,167,513'Mobile computing scheme using encryption and authentication processing based on mobile computer location and network operating policy'20006,163,843'Packet inspection device, mobile computer and packet transfer method in mobile computing with improved mobile computer authenticity check scheme'20006,115,347'Optical pick-up device, optical recording/reproducing apparatus and objective lens'20006,101,163'Optical disc apparatus with reduced leakage of wobble signal to reproduction signal'20006,097,688'Recording/reproducing apparatus and recording/reproducing method for optical recording media'20006,005,834'Optical recording medium recording and reproducing apparatus and optical pickup device'19996,002,653'Magneto-optical head unit capable of compensating the Kerr ellipticity'19995,987,002'Magneto-optical recording medium and method and apparatus for reproducing data therefrom'19995,923,632'Optical pick-up device for a multi-layer recording medium with a photodetector arrangement for focusing and tracking control'19995,898,606'Electrically programmable and erasable nonvolatile semiconductor memory device and operating method therefor'19995,892,944'Program execution and operation right management system suitable for single virtual memory scheme'19995,852,591'Magneto-optical recording medium and head unit for a magneto-optical recording medium'19985,768,221'Method of and apparatus for initializing multi-layer optical recording medium'19985,764,606'Tracking control apparatus for a multi-layer optical disc and method therefor'19985,745,417'Electrically programmable and erasable nonvolatile semiconductor memory device and operating method therefor'19985,694,379'Magneto-optical recording medium and recording apparatus therefor'19975,625,633'Laser light generating apparatus'19975,579,294'Magneto-optical medium and recording and/or reproducing apparatus thereof'19965,538,912'Method of making memory cells with peripheral transistors'19965,473,154'Optical pickup apparatus employing nonpolarization beam splitter and quarter wavelength plate'19955,450,387'Optical pickup apparatus for phase changing optical disk'19955,432,774'Optical recording medium'19955,400,278'Semiconductor memory device and method of manufacturing the same'19955,394,381'Optical pickup apparatus and magneto-optical reproducing system'19955,390,162'Method for reproducing signals recorded on optical recording medium'19955,380,573'Optical recording medium'19955,371,722'Method for recording sector control information on magneto-optical disk'19945,367,509'Method for reproducing information recorded on a magneto-optical recording medium including servo controlling the dimension of the reproduction region of the recording medium by means of a recorded signal'19945,353,277'Optical disk having intertrack heat conduction suppression'19945,338,957'Nonvolatile semiconductor device and a method of manufacturing thereof'19945,335,213'Positional detection of a magneto-optic recording medium for controlling irradiation of a relief region'19945,304,440'Optical disk'19945,303,250'Laser light generating apparatus'19945,208,799'Magneto-optic recording method and magneto-optic recording/reproducing apparatus'19935,191,571'Tracking control method and apparatus for an optical disc system'19935,168,482'Magnetooptical recording and playback method employing multi-layer recording medium with record holding layer and playback layer'19925,090,004'Tracking system for optical recording and/or reproducing apparatus employing a main light beam and a plurality of auxiliary light beams'19924,766,585'Tracking error detecting apparatus for optical head'19884,742,506'Tracking error detecting apparatus for an optical head with skew error reduction by using an inclined header portion'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2018Patents assigned to SONY CORP (59)· patent assignee history
1988–2021Based in Tokyo, JP· patent location history
1992–2018Based in Kanagawa, JP· patent location history
1994–2003Patents assigned to MITSUBISHI ELECTRIC CORP (8)· patent assignee history
1994–2003Based in Hyogo, JP· patent location history
1999–2017Patents assigned to TOSHIBA KK (21)· patent assignee history
2011–2015Patents assigned to FUKUMOTO ATSUSHI (14)· patent assignee history
2012–2013Based in Nishio, JP· patent location history
2015–2019Based in Mie, JP· patent location history
2018–2021Patents assigned to UACJ CORP (7)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP591988–2018
TOSHIBA KK211999–2017
FUKUMOTO ATSUSHIself142011–2015
MITSUBISHI ELECTRIC CORP81994–2003
UACJ CORP72018–2021
Locations
LocationPatentsSpan
Kanagawa, JP681992–2018
Tokyo, JP151988–2021
Hyogo, JP81994–2003
Mie, JP42015–2019
Nishio, JP22012–2013