Inventor · disambiguated record
Masahiro Koyama
Also filed as: KOYAMA MASAHIRO
43 granted patents·12 pending applications·563 citations·filing 1979–2025
97Inventor score
Files withTOSHIBA KK12YAMAHA CORP7MITSUBISHI ELECTRIC CORP6HITACHI HIGH TECH CORP5ASAHI CHEMICAL IND4
Top patents by PatentIndex Score
55 records- 0195US5555179AControl method and control apparatus of factory automation systemHITACHI LTD·Filed 1994·Granted Sep 10, 1996·295 cites·21 claims
- 0292US10720914B1Semiconductor device and semiconductor packageTOSHIBA KK·Filed 2019·Granted Jul 21, 2020·9 cites·14 claims
- 0386US7560844B2Permanent magnet rotary motorSANYO ELECTRIC CO·Filed 2006·Granted Jul 14, 2009·16 cites·3 claims
- 0480US10573735B2Semiconductor deviceTOSHIBA KK·Filed 2017·Granted Feb 25, 2020·3 cites·17 claims
- 0579US4966522AIn-tank type fuel pumpMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Oct 30, 1990·38 cites·4 claims
- 0676US10651161B2Semiconductor deviceTOSHIBA KK·Filed 2018·Granted May 12, 2020·2 cites·20 claims
- 0773US8076651B2Specimen stage apparatus and specimen stage positioning control methodKOYAMA MASAHIRO·Filed 2009·Granted Dec 13, 2011·5 cites·4 claims
- 0872US5744741ADigital signal processing device for sound signal processingYAMAHA CORP·Filed 1996·Granted Apr 28, 1998·40 cites·21 claims
- 0969US9217428B2Tubing pump for delivering fluid in a tubeNAMIKI PREC SINGAPORE PTE LTD·Filed 2013·Granted Dec 22, 2015·2 cites·3 claims
- 1069US7099726B2Production planning systemRENESAS TECH CORP·Filed 2003·Granted Aug 29, 2006·6 cites·7 claims
- 1169US7039481B2Production planning systemRENESAS TECH CORP·Filed 2003·Granted May 2, 2006·17 cites·6 claims
- 1267US10158012B1Semiconductor deviceTOSHIBA KK·Filed 2018·Granted Dec 18, 2018·1 cites·18 claims
- 1364US6518491B2Apparatus and method for automatically generating musical composition data for use on portable terminalYAMAHA CORP·Filed 2001·Granted Feb 11, 2003·11 cites·22 claims
- 1463US11804781B2Electronic circuit and methodTOSHIBA KK·Filed 2022·Granted Oct 31, 2023·0 cites·17 claims
- 1562US11988267B2ChainTSUBAKIMOTO CHAIN CO·Filed 2022·Granted May 21, 2024·0 cites·4 claims
- 1662US5895449ASinging sound-synthesizing apparatus and methodYAMAHA CORP·Filed 1997·Granted Apr 20, 1999·51 cites·14 claims
- 1762US2025360615A1Robot teaching deviceHITACHI HIGH TECH CORP·Filed 2025·Application pending·0 cites
- 1861US9541221B2Tube clamp structure of tubing pumpNAMIKI PRECISION JEWEL CO LTD·Filed 2013·Granted Jan 10, 2017·3 cites·4 claims
- 1961US5646362ASound parameter editing device for an electronic musical instrumentYAMAHA CORP·Filed 1996·Granted Jul 8, 1997·23 cites·17 claims
- 2060US12384028B2Work teaching device and work teaching method for robotHITACHI HIGH TECH CORP·Filed 2021·Granted Aug 12, 2025·0 cites·15 claims
- 2156US7470854B2Electronic music apparatusYAMAHA CORP·Filed 2004·Granted Dec 30, 2008·0 cites·8 claims
- 2256US2025364506A1Semiconductor deviceTOSHIBA KK·Filed 2024·Application pending·0 cites
- 2356US2025364505A1Semiconductor deviceTOSHIBA KK·Filed 2024·Application pending·0 cites
- 2456US2024088109A1Semiconductor deviceTOSHIBA KK·Filed 2023·Application pending·0 cites
- 2555US11543004B2Chain drive systemTSUBAKIMOTO CHAIN CO·Filed 2020·Granted Jan 3, 2023·0 cites·6 claims
- 2655US11486467B2Link plateTSUBAKIMOTO CHAIN CO·Filed 2020·Granted Nov 1, 2022·0 cites·6 claims
- 2755US8823309B2Stage deviceOGAWA HIRONORI·Filed 2010·Granted Sep 2, 2014·1 cites·10 claims
- 2855US7519968B2Decentralized control system for network connectionHITACHI LTD·Filed 2004·Granted Apr 14, 2009·6 cites·1 claims
- 2955US2024295254A1Link plate and chainTSUBAKIMOTO CHAIN CO·Filed 2024·Application pending·0 cites
- 3053US6486472B2Inspecting system using electron beam and inspecting method using sameHITACHI LTD·Filed 2001·Granted Nov 26, 2002·2 cites·10 claims
- 3153US5361672AElectronic musical instrument with help key for displaying the function of designated keysYAMAHA CORP·Filed 1992·Granted Nov 8, 1994·12 cites·9 claims
- 3252US2025214237A1Robot Teaching Method and DeviceHITACHI HIGH TECH CORP·Filed 2022·Application pending·0 cites
- 3351US5391827AElectronic musical instrument having a musical tone parameter displayYAMAHA CORP·Filed 1992·Granted Feb 21, 1995·11 cites·10 claims
- 3451US2022133674A1Orally ingested composition for improving sleepWELLNAS CO LTD·Filed 2020·Application pending·0 cites
- 3549US11527965B2Power conversion circuit and power conversion deviceTOSHIBA KK·Filed 2021·Granted Dec 13, 2022·0 cites·12 claims
- 3648US10897809B2Printed circuit board, air conditioner, and method for manufacturing printed circuit boardMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Jan 19, 2021·0 cites·8 claims
- 3748US7290979B2Circumferential flow pumpMITSUBISHI ELECTRIC CORP·Filed 2005·Granted Nov 6, 2007·1 cites·2 claims
- 3847US10012225B2Tubing pumpADAMANT NAMIKI PREC JEWEL CO LTD·Filed 2013·Granted Jul 3, 2018·0 cites·9 claims
- 3947US2007183886A1Circumferential flow pumpMITSUBISHI ELECTRIC CORP·Filed 2006·Application pending·0 cites
- 4046US2014022053A1Lock deviceTOKAI RIKA CO LTD·Filed 2013·Application pending·0 cites
- 4145US9093890B2Linear motor, movable stage and electron microscopeTANAKA HIDEKI·Filed 2012·Granted Jul 28, 2015·0 cites·8 claims
- 4243US2025279400A1Semiconductor deviceTOSHIBA KK·Filed 2025·Application pending·0 cites
- 4343US2020335968A1Current interrupting device and transistor selecting methodTOSHIBA KK·Filed 2020·Application pending·0 cites
- 4442US2014042338A1Stage apparatus and charged particle beam apparatusHITACHI HIGH TECH CORP·Filed 2013·Application pending·0 cites
- 4541US10027747B2Terminal communication apparatus, and distributed control systemHITACHI HIGH TECH CORP·Filed 2015·Granted Jul 17, 2018·0 cites·5 claims
- 4641US4287295AImage forming method and apparatus thereforASAHI CHEMICAL IND·Filed 1979·Granted Sep 1, 1981·2 cites·12 claims
- 4740US11818840B2Printed wiring board and electronic deviceMITSUBISHI ELECTRIC CORP·Filed 2019·Granted Nov 14, 2023·0 cites·7 claims
- 4840US10103231B2Semiconductor deviceTOSHIBA KK·Filed 2017·Granted Oct 16, 2018·0 cites·18 claims
- 4940US9841739B2Motion controller device and communication method thereinSAEGUSA TAKASHI·Filed 2012·Granted Dec 12, 2017·0 cites·7 claims
- 5039US10167861B2Infusion pumpNAMIKI PREC SINGAPORE PTE LTD·Filed 2016·Granted Jan 1, 2019·0 cites·6 claims
Showing the top 50 of 55 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Masahiro Koyama files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →