Inventor
YAMAGUCHI RYOJI
JP33 patents
⚠️ This page may combine multiple inventors who share the name “YAMAGUCHI RYOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOKYO SHIBAURA ELECTRIC CO
7 patentsUS4443043AApr 17, 1984
Electric motor unit
TOKYO SHIBAURA ELECTRIC CO55 citations96
US4488645ADec 18, 1984
Case for housing information memory media therein
TOKYO SHIBAURA ELECTRIC CO55 citations92
US4538081AAug 27, 1985
Electric motor with hydrodynamic pressure and magnetic thrust bearings
TOKYO SHIBAURA ELECTRIC CO25 citations81
US4327287AApr 27, 1982
Laser scanning apparatus
TOKYO SHIBAURA ELECTRIC CO15 citations74
US4421385ADec 20, 1983
Polygon mirror for use with laser beam scanning apparatus including means for handling and storing the mirror
TOKYO SHIBAURA ELECTRIC CO5 citations63
US4165871AAug 28, 1979
Pattern reading device
TOKYO SHIBAURA ELECTRIC CO4 citations63
US4489410ADec 18, 1984
Apparatus for installing a disk
TOKYO SHIBAURA ELECTRIC CO3 citations62
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
6 patentsUS5737481AApr 7, 1998
Information recording method, information recording apparatus and information recording medium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD101 citations98
US5815209ASep 29, 1998
Encoding method, an encoding apparatus, a decoding method and a decoding apparatus for a moving picture
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD66 citations96
US6647202B1Nov 11, 2003
Video signal reproducing apparatus capable of reproducing bitstreams and video signal reproducing method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations88
US6847687B2Jan 25, 2005
Audio and video processing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations61
US7386180B2Jun 10, 2008
Image signal reproduction apparatus and image signal reproduction method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations54
US6892025B2May 10, 2005
Apparatus and method for reproducing picture signal
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations47
IWATSU ELECTRIC CO LTD
5 patentsUSD265087SJun 22, 1982
Telephone unit
IWATSU ELECTRIC CO LTD19 citations80
USD307145SApr 10, 1990
Telephone unit
IWATSU ELECTRIC CO LTD13 citations74
USD289165SApr 7, 1987
Facsimile transceiver
IWATSU ELECTRIC CO LTD9 citations69
USD306861SMar 27, 1990
Telephone unit
IWATSU ELECTRIC CO LTD5 citations63
USD267179SDec 7, 1982
Call processor for a telephone system
IWATSU ELECTRIC CO LTD5 citations58
TOSHIBA KK
4 patentsUS4896312AJan 23, 1990
Cartridge loading apparatus
TOSHIBA KK17 citations73
US4866697ASep 12, 1989
Information memory medium
TOSHIBA KK11 citations72
US4827468AMay 2, 1989
Information memory medium
TOSHIBA KK11 citations72
US5265087ANov 23, 1993
Information medium with improved temperature characteristics
TOSHIBA KK0 citations40
YAMAGUCHI RYOJI
4 patentsUS8468450B2Jun 18, 2013
Output control device, computer readable medium for the same, and output control system
YAMAGUCHI RYOJI2 citations60
US8649662B2Feb 11, 2014
Coded signal reproduction apparatus
YAMAGUCHI RYOJI0 citations50
US8888906B2Nov 18, 2014
Heat-sensitive color-developing composition and heat-sensitive recording material comprising the composition
YAMAGUCHI RYOJI1 citations49
US10855828B2Dec 1, 2020
Communication control device, communication system and communication method
YAMAGUCHI RYOJI0 citations39