LexDanaLexDanabeta
Inventor

Hiromichi Ishibashi

Inventor
Ibaraki, JP

Overview

104→
Patents
1987–2020
Patent span
Physics
Primary field (CPC G)

Patents· 104 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 transducer87%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light3%
H04NPictorial communication, e.g. television3%
H03KPulse technique2%
H03MCoding2%
G01RMeasuring electric variables1%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein1%
G06KGraphical data reading1%
H01QAntennas, i.e. radio aerials1%
H04BTransmission1%
PatentTitleYear
10,749,556Antenna apparatus and wireless apparatus20208,270,542'Method for evaluating quality of read signal and apparatus for reading information'20128,270,268'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'20128,050,172'Optical disc on which information is written on a block-by-block basis'20117,986,597'PLL control device and reproduction apparatus with linking portion control'20117,933,170'Optical disk medium and method and apparatus for reading information'20117,848,216'Optical disc and physical address format'20107,826,314'Optical disk having wobble patterns representing control information'20107,782,743'High density phase-change type optical disk having a data efficiency of more than 80 percent'20107,768,893'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'20107,697,406'High density phase-change type optical disk having a data efficiency of more than 80 percent'20107,656,780'Optical recording medium having first and second wobble patterns'20107,596,076'Optical disc and physical address format'20097,593,314'Optical disc and physical address format'20097,593,313'Optical disc and physical address format'20097,584,315'Integrated circuit monitoring an internal signal converted from an analog input signal'20097,529,167'Optical disk having wobble patterns representing control information'20097,518,970'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'20097,518,971'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'2009RE040639'Optical disc and optical disc address reading apparatus and method'20097,474,606'Optical disk medium'20097,474,607'Optical disk medium and method and apparatus for reading information'20097,467,412'Data transfer system, data transfer program and video server system'20087,437,053'Digital video recorder, method of driving the video recorder and program'20087,414,946'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'20087,403,462'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'20087,388,826'Optical recording medium capable of recording three data values'20087,385,903'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'20087,376,056'Method and apparatus for reading address information from an optical disc medium'20087,366,080'Laser control unit, laser control circuit, and laser-power adjustment method'20087,362,664'Optical disk medium and method and apparatus for reading information'20087,327,660'Optical disc and physical address format'20087,315,497'Method and an apparatus for reproducing information based on reference wobble block and an information wobble block on an information recording medium'20087,310,293'Method and apparatus for controlling laser power using a test light emission pattern having a multipulse light emission interval'20077,269,117'Optical disc and physical address format'20077,269,116'Optical disc and physical address format'20077,257,073'Optical disc and physical address format'20077,230,537'Product identification system using IC tag units, and a digital content management system'20077,177,253'Optical disc drive for controlling laser emission'20077,167,438'Optical disc with different wobble patterns in different grooves'20077,158,464'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'20077,158,452'Focus control for optical disk unit'20077,145,843'Optical disk having wobble patterns representing control information'20067,123,557'Disc-shaped recording medium disc driving device and method and apparatus for producing disc'20067,116,624'Optical disc and physical address format'20067,116,630'Optical disk medium and method and apparatus for reading information'20067,085,297'Driving method and driving circuit of light source apparatus'20067,079,477'Optical information medium, recording and reproduction apparatus, and recording and reproduction method'20067,075,883'Optical disk having wobble patterns representing control information'20067,068,589'Optical disc and optical disc address reading apparatus and method'20067,057,994'Apparatus and method for reproducing information from two types of optical disks having discrimination marks formed along tracks thereof'20067,038,993'Optical disc medium having a plurality of sector groups, a recording method thereof and recorder'20067,035,189'Optical disc and optical disc address reading apparatus and method'2006RE039067'Apparatus and method for optical disk reproduction'20067,027,374'Optical disk having wobble patterns representing control information'20067,020,385'Method for information recording and apparatus therefor'20067,010,006'Light source apparatus and its control method'20066,999,404'Optical disc and optical disc address reading apparatus and method'20066,996,053'Optical recording medium, optical reproduction apparatus, and optical reproduction method'20066,967,911'Multivalued information recording method, multivalued information recording apparatus, and recording medium'20056,922,384'Information reproducing apparatus'20056,898,175'Optical disc having positive marks and negative marks in a sector block'20056,870,802'Information reproduction apparatus with selective CLV and CAV control'20056,850,478'Optical disk medium and optical disk indentification method and optical disk device'20056,829,208'Optical disk reproducing method and reproducing device'20046,804,190'High density phase-change type optical disk having a data efficiency of more than 80 percent'20046,757,239'Optical disk having wobble patterns and block identification marks'20046,738,326'Apparatus and method for reproducing information from two types of optical disks having discrimination marks formed along tracks thereof'20046,738,342'Optical disc and optical disc address reading apparatus and method'20046,735,160'Optical disc, and recording apparatus, recording method, and reproducing apparatus for the same'20046,724,708'Optical disk medium and method and apparatus for reading information'20046,674,700'Optical disk having sub-blocks and sub-block indentification marks'20046,665,250'Optical disc playback and playback method'20036,661,769'Optical storage medium, a tilt detection apparatus, and a data recording and reproducing apparatus'20036,611,480'Optical disk drive apparatus'20036,608,810'Optical disk comprising a positional information section and a sync mark section each having a wobble pattern'20036,577,590'Optical disk having wobble patterns'20036,442,114'Optical disk signal reproducing apparatus and crosstalk canceling system for use therein'20026,356,522'Optical disk drive'20026,330,213'Optical disk drive apparatus'20016,208,604'Apparatus and method for optical disk reproduction'20016,134,197'Optical disk drive apparatus'20005,886,962'Tilt control apparatus with tilt target value based on bit error rate signal'19995,848,036'Optical disk drive equipped with waveform equalizer and focus adjustment circuit'19985,815,485'Recording medium, a method for producing the same, a control method using the recording medium, and a recording/reproducing apparatus using the recording medium'19985,808,979'Tracking error signal detector'19985,805,543'Tilt control apparatus based on pulsed width detection of an information reproduced signal'19985,777,967'Optical disk device'19985,671,200'Method for detecting the movement of a light beam and optical information reproduction apparatus using the same'19975,663,942'Jitter measurement apparatus detecting amplitude of phase errors between information signal and synchronized clock signal'19975,610,879'Optical reproducing device, optical reproducing method using the same, and optical record medium used in the same'19975,523,989'Optical disk drive having functions of detecting disk tilt from difrraction pattern of track and compensating disk tilt with use of comatic lenses'19965,461,602'Optical recording and reproducing method and apparatus using light beams of two different wavelenghts'19955,295,131'Optical information recording disk having embossed clock mark pits and embossed information recording pits'19945,132,948'Phase comparing apparatus and focus error detecting apparatus'19925,088,080'Apparatus for deriving synchronizing signal from pre-formed marks on record carrier'19925,031,167'Focus error detection system for an optical recording/reproducing system'19915,016,258'Digital modulator and demodulator'19915,008,669'Encoding/decoding system for optical recording/reading'19914,998,235'Focus detection system for an optical disk drive using photo sensor elements in the far field of information pits'19914,823,334'Optical head with easily adjustable collimator having two lens components'19894,761,774'Optical disc drive apparatus'19884,730,297'Retardation compensating light beam guiding system in an optical storage medium drive apparatus'19884,669,073'Optical disk drive apparatus'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (79)· patent assignee history
1987–1995Based in Toyonaka, JP· patent location history
1996–2012Based in Ibaraki, JP· patent location history
1998–2012Based in Osaka, JP· patent location history
1998Based in Ibarakisi, JP· patent location history
2006–2020Patents assigned to SONY CORP (5)· patent assignee history
2008–2012Patents assigned to PANASONIC CORP (22)· patent assignee history
2012Patents assigned to FURUMIYA SHIGERU (2)· patent assignee history
2012Patents assigned to ISHIBASHI HIROMICHI (2)· patent assignee history
2020Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD791987–2008
PANASONIC CORP222008–2012
SONY CORP52006–2020
FURUMIYA SHIGERU22012
ISHIBASHI HIROMICHIself22012
Locations
LocationPatentsSpan
Ibaraki, JP551996–2012
Osaka, JP351998–2012
Toyonaka, JP111987–1995
Tokyo, JP12020
Ibarakisi, JP11998