LexDanaLexDanabeta
Inventor

Ryoji Yamaguchi

Inventor
Tokyo, JP

Overview

32→
Patents
1979–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 32 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Nprimary
H04NPictorial communication, e.g. television29%
G11BInformation storage based on relative movement between record carrier and transducer19%
G06FElectric digital data processing10%
G02BOptical elements, systems or apparatus7%
F16CShafts5%
H02KDynamo-electric machines5%
H04JMultiplex communication5%
H04MTelephonic communication5%
LOCD15%
B41MPrinting, duplicating, marking, or copying processes2%
PatentTitleYear
10,855,828Communication control device, communication system and communication method20209,361,259'Integrated circuit with multipurpose processing and for video/audio processing optimization'20168,888,906'Heat-sensitive color-developing composition and heat-sensitive recording material comprising the composition'20148,811,470'Integrated circuit for video/audio processing'20148,649,662'Coded signal reproduction apparatus'20148,468,450'OUTPUT CONTROL DEVICE, COMPUTER READABLE MEDIUM FOR THE SAME, AND OUTPUT CONTROL SYSTEM'20138,319,740'Display control apparatus'20128,311,192'Communication device, communication system and computer readable medium for communication'20127,884,664'Input device, and multi-function peripheral'20117,809,246'Apparatus for reproduction of encoded signal'20107,386,180'Image signal reproduction apparatus and image signal reproduction method'20086,892,025'Apparatus and method for reproducing picture signal'20056,847,687'Audio and video processing apparatus'20056,647,202'Video signal reproducing apparatus capable of reproducing bitstreams and video signal reproducing method'20035,815,209'Encoding method, an encoding apparatus, a decoding method and a decoding apparatus for a moving picture'19985,737,481'Information recording method, information recording apparatus and information recording medium'19985,265,087'Information medium with improved temperature characteristics'1993D0307145'Telephone unit'1990D0306861'Telephone unit'19904,896,312'Cartridge loading apparatus'19904,866,697'Information memory medium'19894,827,468'Information memory medium'1989D0289165'Facsimile transceiver'19874,538,081'Electric motor with hydrodynamic pressure and magnetic thrust bearings'19854,488,645'Case for housing information memory media therein'19844,489,410'Apparatus for installing a disk'19844,443,043'Electric motor unit'19844,421,385'Polygon mirror for use with laser beam scanning apparatus including means for handling and storing the mirror'1983D0267179'Call processor for a telephone system'1982D0265087'Telephone unit'19824,327,287'Laser scanning apparatus'19824,165,871'Pattern reading device'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1985Patents assigned to TOKYO SHIBAURA ELECTRIC CO (7)· patent assignee history
1979–1993Based in Tokyo, JP· patent location history
1982–1990Patents assigned to IWATSU ELECTRIC CO LTD (5)· patent assignee history
1982–1990Based in Kokubunji, JP· patent location history
1982–1990Based in Yutaka, JP· patent location history
1998–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (6)· patent assignee history
1998–2014Based in Katano, JP· patent location history
2011–2020Patents assigned to BROTHER IND LTD (5)· patent assignee history
2012–2020Patents assigned to YAMAGUCHI RYOJI (7)· patent assignee history
2012–2020Based in Ichinomiya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOKYO SHIBAURA ELECTRIC CO71979–1985
YAMAGUCHI RYOJIself72012–2020
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD61998–2008
BROTHER IND LTD52011–2020
IWATSU ELECTRIC CO LTD51982–1990
Locations
LocationPatentsSpan
Tokyo, JP71979–1993
Katano, JP61998–2014
Kokubunji, JP51982–1990
Yutaka, JP31982–1990
Ichinomiya, JP22012–2020