LexDanaLexDanabeta
Inventor

Shigemi Maeda

Inventor
Yamatokoriyama, JP

Overview

91→
Patents
1982–2020
Patent span
Physics
Primary field (CPC G)

Patents· 91 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 transducer81%
H04NPictorial communication, e.g. television6%
H03MCoding3%
G01DMeasuring not specially adapted for a specific variable2%
G01KMeasuring temperature2%
G02BOptical elements, systems or apparatus1%
G06FElectric digital data processing1%
G06TImage data processing or generation, in general1%
G09BEducational or demonstration appliances1%
G09GArrangements or circuits for control of indicating devices using static means to present variable information1%
PatentTitleYear
10,571,314Signal processing apparatus and signal processing method202010,480,967Signal processing device and signal processing method20199,131,203'Information recording medium, reproduction method and recording method using information recording medium, information recording/reproduction device, and 3D conversion unit and information recording device'20159,066,095'Display control device, display control method, display control program, computer-readable recording medium, recording/playback device equipped with abovementioned display control device, speech output device, and recording/playback device equipped with speech output device'20158,982,194'Image watching glasses identification device, image watching system, pair of image watching glasses, image watching glasses identification program, computer-readable recording medium, and display device'20158,976,637'Optical information storage medium reproduction apparatus and control method of the same'20158,767,516'Optical information storage medium reproduction apparatus and control method of the same'20148,625,397'Optical information storage medium reproduction apparatus and control method of the same'20148,599,669'Reproduced signal quality judging method'20138,582,412'Optical information recording medium and optical information processing apparatus'20138,508,875'Magnetic recording/reproducing apparatus and method for determining magnetic recording condition'20138,503,278'Information reproducing device'20138,441,905'Optical information recording medium and optical information processing apparatus'20138,422,345'Optical information storage medium reproduction apparatus and control method of the same'20138,422,344'Optical information storage medium reproduction apparatus and control method of the same'20138,411,538'Optical information storage medium reproduction apparatus and control method of the same'20138,400,896'Information recording and reproducing apparatus, program for controlling same, computer-readable storage medium, method for controlling information recording and reproducing apparatus, and information storage medium'20138,194,525'Information storage medium, information read/write device, coordination system, control program for the device or system, and computer-readable storage medium'20128,189,442'Recording/reproducing device including recording parameter setting device, and nontransitory computer-readable medium storing program for causing computer to operate as the same'20128,189,444'Optical information recording medium and optical information processing apparatus'20128,169,869'Recording parameter setting device and method using pulse sequences'20128,169,870'Recording/reproducing device and method using pulse sequences, and information recording medium'20128,159,912'Recording parameter setting device, program thereof, computer-readable recording medium containing the program, information recording medium, recording/reproducing device, and recording parameter setting method'20128,154,969'Recording parameter setting device and method using pulse sequences'20128,130,457'Magnetic recording/reproducing apparatus and method for determining magnetic recording condition'20128,116,184'Recording/reproducing device and method using pulse sequences, and information recording medium'20128,102,751'Optical recording condition setting method, optical recording/reproducing device, control program, and recording medium'20128,072,856'Recording/reproducing device and method using pulse sequences, and information recording medium'20118,072,864'Recording/reproducing device and method using pulse sequences and information recording medium'20117,903,519'Recording mark formation method, information recording device, information recording method, and information recording medium'20117,835,254'Optical recording condition setting method, optical recording/reproducing device, control program, and recording medium'20107,474,598'Optical reproducing device that controls the strength of the light beam during reproduction'20097,339,864'Method and apparatus for setting recording condition, recording and reproducing apparatus, recording condition setting program, and recording medium'20087,206,351'Signal evaluation devices and signal evaluation methods, signal quality evaluation methods and reproducing devices and recording devices'20077,194,674'Adaptive waveform equalization for viterbi-decodable signal and signal quality evaluation of viterbi-decodable signal'20077,061,849'Recording method of optical disk, optical disk recording apparatus, optical disk reproducing apparatus and optical disk'20067,027,370'Optical recording device and optical recording method, control program for the optical recording device, and computer-readable recording medium recording the control program'20066,967,917'Optical disk and optical disk apparatus using spatially separated grooves and lands for recording tracks'20056,909,677'Optical disk, optical reproduction device, and optical recording device'20056,771,576'Optical reproduction apparatus'20046,765,860'Optical disc and optical drive'20046,751,173'Optical disk and optical disk apparatus'20046,741,527'Magneto-optical recording medium and magneto-optical recording and reproducing device capable of controlling reproduction power based on long recorded marks'20046,674,701'Apparatus for readout of optical recording medium'20046,600,715'Optical reproducing device and control method thereof'20036,584,050'Optical recording device, optical reproducing device, and optical memory medium'20036,404,717'Optical reproducing device and optical memory medium'20026,392,970'Reproducing light quantity control method for optical memory device, and reproducing light quantity control device, and optical recording medium'20026,327,240'Optical disc and optical disc drive'20016,201,784'Disk type recording medium having zones with address information recorded in grooves and recording and reproducing device therefor'20016,169,714'Apparatus and method for recording/reproducing magneto-optical information'20016,125,085'Optical recording method and device for optimally controlling the width of the recording marks'20006,055,223'Optical memory apparatus'20006,028,828'Disk type recording medium and disk recording and reproducing device'20005,953,297'Disk-shaped recording medium and disk recording or reproducing device'19995,870,375'Disk-shaped recording medium with a groove section having a wobbling side wall'19995,828,649'Magneto-optical memory element'19985,809,005'Method for manufacturing a magneto-optical memory element'19985,764,607'Method and apparatus for controlling digital copying of digitally recorded information'19985,555,229'Method and arrangement for recording/reproducing compressed program information on a recording medium containing a plurality of programs'19965,457,667'Data recording/reproducing apparatus with alternating access of compressed works'19955,434,829'Information reproducing apparatus for properly synchronizing the reproducing of recorded information'19955,434,991'Method and apparatus for recording and reproducing information in black on a rewritable recording medium'19955,432,768'Method and device for data management in optical recording medium'19955,420,838'Disk recording and reproducing device'19955,377,167'Recording/reproducing device'19945,343,452'Data recording/reproducing apparatus of simultaneously performing both reproducing and recording from and in a single recording medium'19945,317,549'Information recording and reproducing apparatus'19945,315,571'Information recording and reproducing device providing faster access time to a recording medium'19945,182,741'Optical disk recording/reproducing device utilizing a constant angular velocity method with a constant linear velocity formatted optical disk'19935,153,861'Recording/reproducing device'19925,142,521'Recording/reproducing device'19925,134,607'Optical memory system for generating a timing control signal for detecting a recorded region through a playback signal'19925,093,820'Optical disk recording/reproducing device'19925,083,301'Optical card recording and reproducing device'19925,048,004'Optical recording medium recording and reproducing device'19915,010,540'Apparatus for recording and reproducing information on and from an optical disk'19915,005,165'Method for managing information on a storage media without losing information due to effects'19915,005,164'Recording and reproducing apparatus'19914,999,824'Magneto-optical memory device'19914,958,337'Disk recording checking method for determining if a disk is defective by the number of errors present'19904,939,710'Optical magnetic memory device utilizing non-recorded portions of recording medium to represent data'19904,924,447'Optical memory device for recording, reproducing or erasing information onto a recording medium, including a recorded region detecting circuit.'19904,920,528'Method of disk recording using alternative recording tracks'19904,910,479'Automatic gain control device for use in an optical memory device'19904,906,874'Analog signal switching device for use in an optical memory'19904,868,922'Data modulation/demodulation system utilizing demodulation clocks that differ in phase'19894,862,443'Sync signal detection apparatus for accurately synchronizing reproduced data'19894,788,674'Optical disc record reproducing apparatus'19884,384,284'Keyboard operated audio visual system'19834,310,838'Instruction controlled audio visual system'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–2020Patents assigned to SHARP KK (91)· patent assignee history
1982–2020Based in Sakai, JP· patent location history
1988–2013Based in Yamatokoriyama, JP· patent location history
1991–2004Based in Nara, JP· patent location history
1994–2001Based in Yamatokooriyama, JP· patent location history
2011–2015Patents assigned to MAEDA SHIGEMI (24)· patent assignee history
2011–2015Patents assigned to ETOH ATSUSHI (13)· patent assignee history
2011–2013Patents assigned to ADACHI YOSHIHISA (12)· patent assignee history
2012–2015Patents assigned to TAJIMA HIDEHARU (11)· patent assignee history
2012–2015Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHARP KK911982–2020
MAEDA SHIGEMIself242011–2015
ETOH ATSUSHI132011–2015
ADACHI YOSHIHISA122011–2013
TAJIMA HIDEHARU112012–2015
Locations
LocationPatentsSpan
Yamatokoriyama, JP601988–2013
Osaka, JP172012–2015
Sakai, JP41982–2020
Nara, JP41991–2004
Yamatokooriyama, JP41994–2001