Inventor · disambiguated record
Mitsuaki Koyama
Also filed as: KOYAMA MITSUAKI · NOMURA YUTAKA · YAMAGUCHI YASUHIRO
24 granted patents·16 pending applications·126 citations·filing 1976–2014
94Inventor score
Files withNIHON DEMPA KOGYO CO17KOYAMA MITSUAKI16TOKYO SHIBAURA ELECTRIC CO4WATANABE SHIGENORI2YORITA TOMOYA1
Top patents by PatentIndex Score
40 records- 0186US4244322AMagnetic brush type developing apparatusTOKYO SHIBAURA ELECTRIC CO·Filed 1978·Granted Jan 13, 1981·26 cites·5 claims
- 0282US4185910APhotoconductive member cleaning device using a magnetic brush for electrostatic copying machinesTOKYO SHIBAURA ELECTRIC CO·Filed 1977·Granted Jan 29, 1980·21 cites·14 claims
- 0381US8830004B2Crystal resonator and crystal oscillatorKOYAMA MITSUAKI·Filed 2012·Granted Sep 9, 2014·7 cites·9 claims
- 0481US8277731B2Sensing deviceYORITA TOMOYA·Filed 2010·Granted Oct 2, 2012·7 cites·6 claims
- 0574US8890391B2External force detection apparatus and external force detection sensorKOYAMA MITSUAKI·Filed 2012·Granted Nov 18, 2014·5 cites·4 claims
- 0674US8802428B2Method of detecting microorganisms and microorganism detecting apparatusKOYAMA MITSUAKI·Filed 2011·Granted Aug 12, 2014·2 cites·5 claims
- 0772US7552639B2Quartz sensor and sensing deviceNIHON DEMPA KOGYO CO·Filed 2005·Granted Jun 30, 2009·3 cites·12 claims
- 0869US8966980B2External force detecting device and external force detecting sensorKOYAMA MITSUAKI·Filed 2012·Granted Mar 3, 2015·2 cites·14 claims
- 0968US9016128B2External force detecting method and external force detecting deviceKOYAMA MITSUAKI·Filed 2012·Granted Apr 28, 2015·2 cites·6 claims
- 1068US8919201B2Acceleration measuring apparatusKOYAMA MITSUAKI·Filed 2012·Granted Dec 30, 2014·2 cites·2 claims
- 1168US8298486B2Piezoelectric resonator and sensing sensorWATANABE SHIGENORI·Filed 2009·Granted Oct 30, 2012·4 cites·4 claims
- 1268US7677087B2Quartz sensor and sensing deviceNIHON DEMPA KOGYO CO·Filed 2005·Granted Mar 16, 2010·2 cites·5 claims
- 1366US8677828B2Vibration detecting deviceKOYAMA MITSUAKI·Filed 2012·Granted Mar 25, 2014·2 cites·6 claims
- 1466US6300707B1Quartz crystal unitNIHON DEMPA KOGYO CO·Filed 2001·Granted Oct 9, 2001·15 cites·8 claims
- 1564US8434351B2Sensing instrumentKOYAMA MITSUAKI·Filed 2007·Granted May 7, 2013·1 cites·2 claims
- 1657US4205912AElectrophotographic apparatusTOKYO SHIBAURA ELECTRIC CO·Filed 1976·Granted Jun 3, 1980·8 cites·1 claims
- 1755US9103748B2Method for detecting microorganisms and microorganism detecting apparatusKOYAMA MITSUAKI·Filed 2011·Granted Aug 11, 2015·0 cites·6 claims
- 1854US8674780B2Oscillator with frequency adjustmentNIHON DEMPA KOGYO CO·Filed 2012·Granted Mar 18, 2014·1 cites·6 claims
- 1950US4192604ABias voltage source for applying a bias voltage on a magnetic brush means of an electrostatic printing apparatusTOKYO SHIBAURA ELECTRIC CO·Filed 1978·Granted Mar 11, 1980·6 cites·5 claims
- 2048US2010021346A1Sensing instrumentNIHON DEMPA KOGYO CO·Filed 2007·Application pending·0 cites
- 2147US8464577B2Quartz sensor and sensing deviceKOYAMA MITSUAKI·Filed 2010·Granted Jun 18, 2013·0 cites·12 claims
- 2245US2011064615A1Piezoelectric sensor and sensing instrumentWATANABE SHIGENORI·Filed 2009·Application pending·0 cites
- 2343US2013154442A1External force detection equipmentNIHON DEMPA KOGYO CO·Filed 2012·Application pending·0 cites
- 2443US2007200647A1Method of manufacturing spherical or hemispherical crystal blank and method of manufacturing spherical saw deviceKOYAMA MITSUAKI·Filed 2007·Application pending·0 cites
- 2541US8752909B2Brake mechanism, transport apparatus and industrial apparatusKOYAMA MITSUAKI·Filed 2011·Granted Jun 17, 2014·0 cites·15 claims
- 2641US2014210567A1Crystal resonator, crystal resonator package, and oscillatorNIHON DEMPA KOGYO CO·Filed 2014·Application pending·0 cites
- 2741US2009268776A1Piezoelectric Resonator and Temperature SensorKOYAMA MITSUAKI·Filed 2006·Application pending·0 cites
- 2840US2014175944A1Crystal resonatorNIHON DEMPA KOGYO CO·Filed 2013·Application pending·0 cites
- 2940US2014125422A1Self-oscillation circuitNIHON DEMPA KOGYO CO·Filed 2013·Application pending·0 cites
- 3040US2014041454A1Piezoelectric resonator, etching amount detecting device, and oscillatorNIHON DEMPA KOGYO CO·Filed 2013·Application pending·0 cites
- 3140US2014165382A1Method for detecting region of crystal element, method for fabricating crystal resonator, and method for fabricating oscillatorNIHON DEMPA KOGYO CO·Filed 2013·Application pending·0 cites
- 3240US2014210566A1Crystal resonator, crystal resonator package, and crystal oscillatorNIHON DEMPA KOGYO CO·Filed 2014·Application pending·0 cites
- 3339US2014062258A1External force detection equipment and external force detection sensorNIHON DEMPA KOGYO CO·Filed 2013·Application pending·0 cites
- 3438US2013255402A1External force detection sensor and external force detection equipmentNIHON DEMPA KOGYO CO·Filed 2013·Application pending·0 cites
- 3537US2012181899A1Piezoelectric resonator and elastic wave deviceKOYAMA MITSUAKI·Filed 2012·Application pending·0 cites
- 3637US2012081187A1OscillatorKOYAMA MITSUAKI·Filed 2011·Application pending·0 cites
- 3736USD526583SCrystal resonator for a bio-sensorNIHON DEMPA KOGYO CO·Filed 2005·Granted Aug 15, 2006·3 cites·1 claims
- 3834US6031319AQuartz crystal element using a thickness shear hexagonal quartz blank and method for manufacturing the sameNIHON DEMPA KOGYO CO·Filed 1998·Granted Feb 29, 2000·7 cites·8 claims
- 3934US2011221538A1Piezoelectric oscillatorNIHON DEMPA KOGYO CO·Filed 2011·Application pending·0 cites
- 4032US8242856B2Piezoelectric oscillatorKOYAMA MITSUAKI·Filed 2010·Granted Aug 14, 2012·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →