Inventor · disambiguated record
Hiroyuki Umeda
Also filed as: UMEDA HIROYUKI
44 granted patents·1 pending application·1,255 citations·filing 1975–2015
98Inventor score
Files withVICTOR COMPANY OF JAPAN28SEIKO EPSON CORP5KOMATSU MFG CO LTD4MACHIDA ENDOSCOPE CO LTD3TOSHIBA KK2
Top patents by PatentIndex Score
45 records- 0194US4173319AMagnetic tape cassetteVICTOR COMPANY OF JAPAN·Filed 1978·Granted Nov 6, 1979·45 cites·8 claims
- 0291US4060840ARecording and/or reproducing apparatus having adjustable tape guide mechanismVICTOR COMPANY OF JAPAN·Filed 1976·Granted Nov 29, 1977·37 cites·7 claims
- 0388US4834069AEndoscope with improved inserting portionMACHIDA ENDOSCOPE CO LTD·Filed 1988·Granted May 30, 1989·268 cites·8 claims
- 0487US4091426ADevice for detecting an end of a cassette tapeVICTOR COMPANY OF JAPAN·Filed 1976·Granted May 23, 1978·29 cites·2 claims
- 0586US6738271B2Charge pump circuit DC/DC converter and power supply apparatus for liquid crystal deviceSEIKO EPSON CORP·Filed 2002·Granted May 18, 2004·30 cites·20 claims
- 0685US6597158B2Adjustable current consumption power supply apparatusSEIKO EPSON CORP·Filed 2002·Granted Jul 22, 2003·49 cites·12 claims
- 0784US4452407ATape cassette having a reel braking mechanismVICTOR COMPANY OF JAPAN·Filed 1982·Granted Jun 5, 1984·27 cites·10 claims
- 0884US4410919ATape loading apparatus in a recording and/or reproducing apparatusVICTOR COMPANY OF JAPAN·Filed 1981·Granted Oct 18, 1983·26 cites·5 claims
- 0983US4477850AAdapter for a miniature type tape cassetteVICTOR COMPANY OF JAPAN·Filed 1982·Granted Oct 16, 1984·17 cites·12 claims
- 1083US3979772AAutomatic tape loading type recording and/or reproducing apparatusVICTOR COMPANY OF JAPAN·Filed 1975·Granted Sep 7, 1976·24 cites·22 claims
- 1180US4499513ARecording and/or reproducing apparatusVICTOR COMPANY OF JAPAN·Filed 1982·Granted Feb 12, 1985·21 cites·16 claims
- 1278US4092684AAutomatic loading video recorder with speed stabilizingVICTOR COMPANY OF JAPAN·Filed 1977·Granted May 30, 1978·18 cites·6 claims
- 1377US4844052AApparatus for transmitting liquid and gas in an endoscopeTOSHIBA KK·Filed 1988·Granted Jul 4, 1989·144 cites·3 claims
- 1477US4432510ATape cassetteVICTOR COMPANY OF JAPAN·Filed 1982·Granted Feb 21, 1984·13 cites·11 claims
- 1575US4449676ATape cassette having a reel displacement limiting mechanismVICTOR COMPANY OF JAPAN·Filed 1982·Granted May 22, 1984·18 cites·6 claims
- 1674US4559574ATape cassetteVICTOR COMPANY OF JAPAN·Filed 1984·Granted Dec 17, 1985·17 cites·15 claims
- 1774US4476505AMiniature type tape cassetteVICTOR COMPANY OF JAPAN·Filed 1982·Granted Oct 9, 1984·12 cites·8 claims
- 1873US4494161ATape cassetteVICTOR COMPANY OF JAPAN·Filed 1982·Granted Jan 15, 1985·11 cites·5 claims
- 1972US7009858B2Adjustable current consumption power supply apparatusSEIKO EPSON CORP·Filed 2002·Granted Mar 7, 2006·23 cites·12 claims
- 2072US4836187AConstant pressure apparatus of an endoscopeTOSHIBA KK·Filed 1987·Granted Jun 6, 1989·130 cites·13 claims
- 2172US4602300AAdapter for a miniature type tape cassetteVICTOR COMPANY OF JAPAN·Filed 1984·Granted Jul 22, 1986·11 cites·7 claims
- 2268US4608616ATape cassette having a lock mechanism for locking a tape protecting lidVICTOR COMPANY OF JAPAN·Filed 1983·Granted Aug 26, 1986·15 cites·5 claims
- 2367US6752339B2Mobile crushing apparatusKOMATSU MFG CO LTD·Filed 2001·Granted Jun 22, 2004·11 cites·3 claims
- 2464US4973311AAspirator for endoscopic systemTOKYO SHIBAURA ELECTRIC CO·Filed 1987·Granted Nov 27, 1990·99 cites·2 claims
- 2562US6587306B1Tape cassette of high transparency materialVICTOR COMPANY OF JAPAN·Filed 2000·Granted Jul 1, 2003·4 cites·4 claims
- 2662US4536810AAdapter for a miniature type tape cassetteVICTOR COMPANY OF JAPAN·Filed 1981·Granted Aug 20, 1985·11 cites·15 claims
- 2760US7523879B2Crushing apparatusKOMATSU MFG CO LTD·Filed 2004·Granted Apr 28, 2009·7 cites·8 claims
- 2860US7234655B2Travel control device for self-propelled recycle machineKOMATSU MFG CO LTD·Filed 2004·Granted Jun 26, 2007·5 cites·17 claims
- 2960US4558384AMiniature type tape cassette and adapter meansVICTOR COMPANY OF JAPAN·Filed 1984·Granted Dec 10, 1985·10 cites·4 claims
- 3059US8201763B2Self-propelled crushing systemYAMADA MITSUNOBU·Filed 2008·Granted Jun 19, 2012·4 cites·14 claims
- 3156US6903538B2Power supply apparatusSEIKO EPSON CORP·Filed 2004·Granted Jun 7, 2005·10 cites·3 claims
- 3255US4652948AAutomatic tape loading type recording and/or reproducing apparatusVICTOR COMPANY OF JAPAN·Filed 1984·Granted Mar 24, 1987·8 cites·6 claims
- 3352US7648091B2Mobile wood crusherKOMATSU MFG CO LTD·Filed 2004·Granted Jan 19, 2010·2 cites·23 claims
- 3452US5255668ABending deviceMACHIDA ENDOSCOPE CO LTD·Filed 1992·Granted Oct 26, 1993·64 cites·7 claims
- 3543US6710974B2Tape cassette of high transparency materialVICTOR COMPANY OF JAPAN·Filed 2003·Granted Mar 23, 2004·0 cites·6 claims
- 3643US6680819B2Tape cassette of high transparency materialVICTOR COMPANY OF JAPAN·Filed 2003·Granted Jan 20, 2004·0 cites·6 claims
- 3743US4669021ATape cassette having a transparent windowVICTOR COMPANY OF JAPAN·Filed 1983·Granted May 26, 1987·5 cites·3 claims
- 3837US4723864AEndoscope and photographing apparatusMACHIDA ENDOSCOPE CO LTD·Filed 1985·Granted Feb 9, 1988·15 cites·13 claims
- 3936US4757408AMagnetic recording and/or reproducing apparatusVICTOR COMPANY OF JAPAN·Filed 1986·Granted Jul 12, 1988·3 cites·4 claims
- 4036US2017329213A1Polarization conversion element and projectorSEIKO EPSON CORP·Filed 2015·Application pending·0 cites
- 4135US5548460ATape cassette having an escape slot arrangementVICTOR COMPANY OF JAPAN·Filed 1994·Granted Aug 20, 1996·3 cites·7 claims
- 4234US5543991ATape cassette having a rear cover composed of two pieces of plates rotatably connected to each otherVICTOR COMPANY OF JAPAN·Filed 1994·Granted Aug 6, 1996·3 cites·9 claims
- 4329US4626938ATape loading device in a recording and/or reproducing apparatusVICTOR COMPANY OF JAPAN·Filed 1983·Granted Dec 2, 1986·1 cites·11 claims
- 4428US4734798AMagnetic recording and reproducing apparatusVICTOR COMPANY OF JAPAN·Filed 1986·Granted Mar 29, 1988·0 cites·5 claims
- 4526US4841951AAngle portion of encoscopeUMEDA HIROYUKI·Filed 1988·Granted Jun 27, 1989·5 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →