LexDanaLexDanabeta
Inventor

Seiji Higurashi

Inventor
Tokyo, JP

Overview

89→
Patents
1985–2012
Patent span
Physics
Primary field (CPC G)

Patents· 89 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 transducer47%
H04NPictorial communication, e.g. television36%
H04LTransmission of digital information, e.g. telegraphic communication9%
G06FElectric digital data processing1%
H03MCoding1%
A63FCard, board, or roulette games1%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes1%
G07FCoin-freed or like apparatus1%
H03GControl of amplification1%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses1%
PatentTitleYear
8,260,122'MPEG picture data recording apparatus, MPEG picture data recording method, MPEG picture data recording medium, MPEG picture data generating apparatus, MPEG picture data reproducing apparatus, and MPEG picture data reproducing method'20128,218,947'Video data recording apparatus and method, and video data reproducing apparatus and method'20128,131,131'Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof'20128,131,135'MPEG picture data recording apparatus, MPEG picture data recording method, MPEG picture data recording medium, MPEG picture data generating apparatus, MPEG picture data reproducing apparatus, and MPEG picture data reproducing method'20128,073,308'Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof'20118,073,309'Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof'20118,073,310'Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof'20118,073,307'Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof'20118,064,749'Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof'20117,941,030'Audio/video recording apparatus, recording method, playback apparatus, playback method, playback program, and recording program'20117,747,014'Information transmission system, and information sending apparatus and information receiving apparatus used therein'20107,661,001'Information-signal encrypting apparatus and information-signal decrypting apparatus'20107,650,061'Information recording apparatus, information reproducing apparatus, and related computer programs'20107,650,062'Information recording apparatus, information reproducing apparatus, and related computer programs'20107,580,341'Address-information recording method and apparatus, and optical recording medium'20097,471,795'Information transmission system'20087,317,864'Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof'20087,292,782'MPEG picture data recording apparatus, MPEG picture data recording method, MPEG picture data recording medium, MPEG picture data generating apparatus, MPEG picture data reproducing apparatus, and MPEG picture data reproducing method'20077,254,234'Method and apparatus for encrypting and decrypting information'20077,239,703'Copyright protection system for data storage and transmission'20077,239,794'Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof'20077,237,124'Contents recorder/reproducer'20077,155,011'Encryption method, decryption method, and recording and reproducing apparatus'20067,124,434'Information transmission system, and information sending apparatus and information receiving apparatus used therein'20067,024,561'Contents recording apparatus, recording medium, contents reproducing apparatus, contents transmission method, transmission medium, and contents reception method'20066,975,730'Method and apparatus for contents information'20056,959,087'Method and apparatus for transmitting encryption-resultant information and decrypting information'20056,947,663'Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof'20056,891,951'Cryptosystem-related method and apparatus'20056,889,323'Method and apparatus for contents information'20056,886,097'Method and apparatus for recording and reproducing information on and from recording medium'20056,879,772'Audio and video signal recording apparatus and method having a function of informing user when the signal is protected from recording'20056,834,349'Copyright protection system for data storage and transmission'20046,735,375'Data recording and reproducing apparatus'20046,582,309'Game system and computer-readable recording medium'20036,560,401'Method and apparatus for recording and reproducing information'20036,525,776'Information compressing apparatus and method'20036,504,991'Magnetic recording apparatus, magnetic reproducing apparatus, and related methods'20036,459,848'Magnetic recording apparatus and method, and magnetic recording medium'20026,381,281'Information compressing apparatus'20026,334,024'Helical scan data recording apparatus and a helical scan data reproducing apparatus'20016,317,557'Digital signal recording method and apparatus and recording medium therefor'20016,288,857'Digital signal recording apparatus, and related method'20016,262,771'Method and apparatus for converting picture signal, and recording and reproducing apparatus'20016,201,926'Apparatus for recording digital picture signal'20016,198,585'Digital signal recording apparatus, and related method'20016,191,900'Digital signal recording and reproducing apparatus and recording medium'20016,137,648'Magnetic tape and a method for recording and reproducing a plurality of different information signals on and from the magnetic tape'20006,125,233'Method of recording one of different data'20006,122,432'Information signal recording apparatus'20006,115,202'Digital signal recording method and recording apparatus for searching each recorded program'20006,108,148'Method, device, and medium for recording digital signal'20006,084,737'Magnetic playback system'20006,052,246'Method and apparatus for recording digital signals in the form of primary data plus auxiliary information'20006,031,679'Magnetic recording/reproducing apparatus capable of reproducing digital data at minimum error rate'20006,026,213'Digital signal recording method and apparatus and recording medium therefor'20006,011,896'Method of recording various different video signals onto magnetic tape'20006,011,665'Helical scan type information recording device'20005,999,350'Recording/reproducing method of digital data and a recording medium'19995,991,501'Apparatus and method for recording and reproducing digital signals on first and second areas of a storage medium'19995,986,833'Data recording method for recording absolute address data on a tape storage medium'19995,970,204'Method and apparatus for recording time code data'19995,963,703'Method and apparatus for recording and reproducing packet data'19995,948,118'Error detection code forming method and apparatus'19995,933,568'Method of recording and reproducing digital signals in different signal transmission modes and recording medium therefor'19995,822,140'Digital address information recording method for recording absolute address together with information signal on recording medium'19985,757,569'Helical scan type information recording device for digital and analog signals'19985,751,509'Drum servo system using a PLL with frequency divided reference clock signals as an input'19985,642,457'Helical scan type magnetic recording and reproducing apparatus'19975,633,635'Method of processing code for error checking and code processing circuit'19975,633,684'Image information compression and decompression device'19975,577,079'Phase comparing circuit and PLL circuit'19965,559,931'Compression/decompression system which performs an orthogonal transformation in a time direction with respect to picture planes'19965,552,941'Method of recording/reproducing digital data including recording region allocation'19965,537,619'Digital data transmission method and apparatus for transmitting digital data at a high efficiency'19965,500,679'Method and apparatus for deriving a video signal corresponding to a standard definition signal from a high definition signal'19965,428,485'Video tape recorder with PCM audio recording with device for detecting irregularities in the video signal'19955,274,513'Search system for helical scan digital data reproduction apparatus'19935,124,852'Magnetic tape recording apparatus'19925,063,452'Magnetic recording and/or reproducing apparatus having means for preventing audio-to-video crosstalk and noise generation'19915,027,229'Magnetic recording apparatus and magnetic recording/reproducing apparatus'19915,014,274'Code-error correcting device'19914,819,088'Magnetic recording and reproducing system'19894,768,108'Magnetic recording and reproducing system'19884,752,832'Video and audio signal recording and/or reproducing apparatus'19884,660,104'Method for recording and/or reproducing video and audio signals on a magnetic tape and a rotary cylinder arrangement therefor'19874,633,332'Multi-mode magnetic recording system and multi-mode magnetic recording and playback system for VTR'19864,622,597'Sound and video multiplex recording system'19864,562,492'Noise reduction circuit'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2012Patents assigned to VICTOR COMPANY OF JAPAN (86)· patent assignee history
1985–1989Based in Chiba, JP· patent location history
1991–2012Based in Tokyo, JP· patent location history
1991–2011Based in Fuchu, JP· patent location history
2003Based in Zama, JP· patent location history
2011–2012Patents assigned to HIGURASHI SEIJI (9)· patent assignee history
2011–2012Patents assigned to SUGAHARA TAKAYUKI (8)· patent assignee history
2011–2012Patents assigned to KODA KAZUO (6)· patent assignee history
2012Patents assigned to KUROIWA TOSHIO (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
VICTOR COMPANY OF JAPAN861985–2012
HIGURASHI SEIJIself92011–2012
SUGAHARA TAKAYUKI82011–2012
KODA KAZUO62011–2012
KUROIWA TOSHIO32012
Locations
LocationPatentsSpan
Tokyo, JP511991–2012
Fuchu, JP301991–2011
Chiba, JP71985–1989
Zama, JP12003