Inventor
UMEDA HIROYUKI
JP44 patents
⚠️ This page may combine multiple inventors who share the name “UMEDA HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VICTOR COMPANY OF JAPAN
28 patentsUS4173319ANov 6, 1979
Magnetic tape cassette
VICTOR COMPANY OF JAPAN45 citations93
US4060840ANov 29, 1977
Recording and/or reproducing apparatus having adjustable tape guide mechanism
VICTOR COMPANY OF JAPAN37 citations93
US4452407AJun 5, 1984
Tape cassette having a reel braking mechanism
VICTOR COMPANY OF JAPAN27 citations92
US4499513AFeb 12, 1985
Recording and/or reproducing apparatus
VICTOR COMPANY OF JAPAN21 citations82
US4410919AOct 18, 1983
Tape loading apparatus in a recording and/or reproducing apparatus
VICTOR COMPANY OF JAPAN26 citations82
US4091426AMay 23, 1978
Device for detecting an end of a cassette tape
VICTOR COMPANY OF JAPAN29 citations82
US3979772ASep 7, 1976
Automatic tape loading type recording and/or reproducing apparatus
VICTOR COMPANY OF JAPAN24 citations82
US4494161AJan 15, 1985
Tape cassette
VICTOR COMPANY OF JAPAN11 citations81
US4477850AOct 16, 1984
Adapter for a miniature type tape cassette
VICTOR COMPANY OF JAPAN17 citations81
US4476505AOct 9, 1984
Miniature type tape cassette
VICTOR COMPANY OF JAPAN12 citations81
US4432510AFeb 21, 1984
Tape cassette
VICTOR COMPANY OF JAPAN13 citations81
US4652948AMar 24, 1987
Automatic tape loading type recording and/or reproducing apparatus
VICTOR COMPANY OF JAPAN8 citations74
US4559574ADec 17, 1985
Tape cassette
VICTOR COMPANY OF JAPAN17 citations74
US4558384ADec 10, 1985
Miniature type tape cassette and adapter means
VICTOR COMPANY OF JAPAN10 citations74
US4536810AAug 20, 1985
Adapter for a miniature type tape cassette
VICTOR COMPANY OF JAPAN11 citations74
US4092684AMay 30, 1978
Automatic loading video recorder with speed stabilizing
VICTOR COMPANY OF JAPAN18 citations74
US4602300AJul 22, 1986
Adapter for a miniature type tape cassette
VICTOR COMPANY OF JAPAN11 citations73
US4449676AMay 22, 1984
Tape cassette having a reel displacement limiting mechanism
VICTOR COMPANY OF JAPAN18 citations73
US4608616AAug 26, 1986
Tape cassette having a lock mechanism for locking a tape protecting lid
VICTOR COMPANY OF JAPAN15 citations72
US4757408AJul 12, 1988
Magnetic recording and/or reproducing apparatus
VICTOR COMPANY OF JAPAN3 citations63
US5548460AAug 20, 1996
Tape cassette having an escape slot arrangement
VICTOR COMPANY OF JAPAN3 citations61
US4669021AMay 26, 1987
Tape cassette having a transparent window
VICTOR COMPANY OF JAPAN5 citations61
US6587306B1Jul 1, 2003
Tape cassette of high transparency material
VICTOR COMPANY OF JAPAN4 citations60
US5543991AAug 6, 1996
Tape cassette having a rear cover composed of two pieces of plates rotatably connected to each other
VICTOR COMPANY OF JAPAN3 citations60
US6710974B2Mar 23, 2004
Tape cassette of high transparency material
VICTOR COMPANY OF JAPAN0 citations50
US6680819B2Jan 20, 2004
Tape cassette of high transparency material
VICTOR COMPANY OF JAPAN0 citations50
US4626938ADec 2, 1986
Tape loading device in a recording and/or reproducing apparatus
VICTOR COMPANY OF JAPAN1 citations50
US4734798AMar 29, 1988
Magnetic recording and reproducing apparatus
VICTOR COMPANY OF JAPAN0 citations40
SEIKO EPSON CORP
4 patentsUS6738271B2May 18, 2004
Charge pump circuit DC/DC converter and power supply apparatus for liquid crystal device
SEIKO EPSON CORP30 citations93
US6597158B2Jul 22, 2003
Adjustable current consumption power supply apparatus
SEIKO EPSON CORP49 citations93
US7009858B2Mar 7, 2006
Adjustable current consumption power supply apparatus
SEIKO EPSON CORP23 citations92
US6903538B2Jun 7, 2005
Power supply apparatus
SEIKO EPSON CORP10 citations73
KOMATSU MFG CO LTD
4 patentsUS7523879B2Apr 28, 2009
Crushing apparatus
KOMATSU MFG CO LTD7 citations68
US6752339B2Jun 22, 2004
Mobile crushing apparatus
KOMATSU MFG CO LTD11 citations68
US7648091B2Jan 19, 2010
Mobile wood crusher
KOMATSU MFG CO LTD2 citations63
US7234655B2Jun 26, 2007
Travel control device for self-propelled recycle machine
KOMATSU MFG CO LTD5 citations63