LexDanaLexDanabeta
Inventor

Tamotsu Ito

Inventor
Ayase, JP

Overview

48→
Patents
1976–2021
Patent span
Physics
Primary field (CPC G)

Patents· 48 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 transducer37%
H04NPictorial communication, e.g. television31%
G06FElectric digital data processing10%
H04LTransmission of digital information, e.g. telegraphic communication4%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters2%
H04MTelephonic communication2%
B29CShaping or joining of plastics1%
G01CMeasuring distances, levels or bearings1%
G01RMeasuring electric variables1%
G03GElectrography1%
PatentTitleYear
11,092,924Image forming apparatus having a drive unit including a torsion spring202110,374,537Rotor position detection system20199,979,330Three-phase motor control apparatus20189,240,897'Method of using AV devices and AV device system'20169,032,438'Method and apparatus for accessing content'20158,326,129'Method of using AV devices and AV device system'20128,150,079'Personal digital assistant and stereo reproduction method'20127,577,417'Mobile terminal'20097,509,091'Broadcast reception system, mobile terminal and server'20097,457,521'Video disc recording and reproducing apparatus, and method using the same'20087,333,717'Method of using AV devices and AV device system'20087,302,166'Computer readable storage medium for storing still picture and still picture management information'20077,302,165'Apparatus for playing back still picture stored in storage medium based on still picture management information'20077,260,313'Storage medium, recording apparatus, playback apparatus, recording method, and computer-readable storage medium'20077,224,886'Method of using AV devices and AV device system'20077,196,986'Digital information processing method'20077,174,537'Microcomputer control system in which programs can be modified and newer versions of the modified programs being detected and executed'20077,133,599'Realtime data recording method'20067,046,912'Reproducing apparatus and reproducing/recording apparatus memorizing identification information of optical information media and method thereof'20067,031,597'Method for recording still picture group management information'20066,832,040'Reproducing apparatus and reproducing/recording apparatus memorizing identification information of optical information media and method thereof'20046,816,444'Method and apparatus for digital information processing'20046,788,346'Camera information recording apparatus for recording image data in an optical disk wherein managing information is stored when the residual storage of a battery decreases'20046,701,063'Video disc recording and reproducing apparatus, and method using the same'20046,697,563'Information recording medium, motion-picture voice recording/reproducing apparatus, and motion-picture voice recording/reproducing method'20046,633,724'Realtime data recording method'20036,631,107'Method and apparatus for information recording medium'20036,594,442'Optical disk recording still image data, a method and apparatus for recording and playing back still image data to and from the optical disk'20036,496,978'Microcomputer control system in which programs can be modified from outside of the system and newer versions of the modified programs are determined and executed'20026,493,504'Storage medium, recording apparatus, playback apparatus, recording method, and computer-readable storage medium'20026,483,983'Information reproducing method, information reproducing apparatus and information recording/reproducing apparatus'20026,467,005'System for connecting drive unit for host apparatus'20026,463,022'Information recording medium, enclosing casing of information recording medium, and information recording apparatus using the same'20026,445,654'Recording/reproducing method and device with supplementary data storage and output'20026,393,201'Reproducing apparatus and reproducing/recording apparatus memorizing identification information of optical information meda and method thereof'20026,347,068'Information recording medium, enclosing casing of information recording medium, and information recording apparatus using the same'20026,243,340'Information recording apparatus including system control means for producing managing information for managing data recorded on an information recording medium and preventing designated data from being accessed'20016,229,777'Information recording medium, apparatus and control method therefor'20016,088,825'Error correcting apparatus with error correction unit carrying out first error correction and CPU configured to carry out second error correction'20005,875,156'Playback system for an optical disc representing a character or a graphic pattern formed by specified pit patterns'19995,808,987'Information reproducing system for reproducing interleaved image data and voice data from a recording medium in accordance with a control program reproducing from the recording medium'19985,768,502'Error correcting apparatus for detecting and correcting errors in data accessed from a storage medium'19985,751,671'Information recording media and optical disk, disk having specific data so that a visible pattern of characters or graphics appear on a copy disk'19985,737,306'Playback system for an optical disc presenting a character or a graphic pattern formed by specified pit patterns on data tracks'19985,608,717'Information recording media and optical disc presenting a character or a graphic pattern formed by specified pit patterns on data tracks'19975,499,221'CD-ROM retrieval apparatus'19964,146,756'Moving voice coil transducer with diaphragm having concentric sections of opposite curvature'19793,955,266'Vacuum sealed molding process for producing molds having a deep concave portion or a convex portion'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Based in Toyohashi, JP· patent location history
1979–2012Patents assigned to HITACHI LTD (41)· patent assignee history
1979–2019Based in Yokohama, JP· patent location history
1996–2016Based in Ayase, JP· patent location history
2007–2015Based in Tokyo, JP· patent location history
2012–2015Patents assigned to ITO TAMOTSU (3)· patent assignee history
2012Patents assigned to AKAMATSU CHIYO (1)· patent assignee history
2015–2016Patents assigned to HITACHI MAXELL (2)· patent assignee history
2018–2019Patents assigned to TOSHIBA KK (2)· patent assignee history
2021Based in Nagoya-shi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD411979–2012
ITO TAMOTSUself32012–2015
HITACHI MAXELL22015–2016
TOSHIBA KK22018–2019
AKAMATSU CHIYO12012
Locations
LocationPatentsSpan
Ayase, JP401996–2016
Yokohama, JP41979–2019
Tokyo, JP22007–2015
Nagoya-shi, JP12021
Toyohashi, JP11976