Inventor · disambiguated record
Chihiro Nagura
Also filed as: NAGURA CHIHIRO
38 granted patents·3 pending applications·117 citations·filing 2003–2023
96Inventor score
Top patents by PatentIndex Score
41 records- 0195US9618370B2Optical encoder and apparatus provided therewithCANON KK·Filed 2015·Granted Apr 11, 2017·10 cites·12 claims
- 0294US9366587B2Optical force sensor and apparatus using optical force sensorCANON KK·Filed 2015·Granted Jun 14, 2016·11 cites·10 claims
- 0392US9127967B2Encoder having plural phase acquirers and a positional information acquirer for precisely obtaining a position of a scaleNAGURA CHIHIRO·Filed 2012·Granted Sep 8, 2015·11 cites·9 claims
- 0488US9766096B2Encoder for producing position information using positions of a first and second sensor, tilt angles, period of a pattern on a scaleCANON KK·Filed 2015·Granted Sep 19, 2017·4 cites·5 claims
- 0588US9417101B2Optical encoder with a scale that has fine and coarse pitch patternsNAGURA CHIHIRO·Filed 2012·Granted Aug 16, 2016·8 cites·16 claims
- 0688US8487237B2Rotary encoder and method of assembling the sameWATANABE IKUO·Filed 2011·Granted Jul 16, 2013·12 cites·10 claims
- 0787US8993955B2Encoder and apparatus using the sameCANON KK·Filed 2012·Granted Mar 31, 2015·6 cites·11 claims
- 0887US8735801B2Optical encoderNAGURA CHIHIRO·Filed 2011·Granted May 27, 2014·7 cites·7 claims
- 0987US7791986B2Optical information recording/reproducing apparatusCANON KK·Filed 2007·Granted Sep 7, 2010·9 cites·6 claims
- 1085US11946780B2Optical encoder and control apparatusCANON KK·Filed 2021·Granted Apr 2, 2024·1 cites·15 claims
- 1184US10503109B2Optical sensor having an irradiating light separation component and image forming apparatus thereofCANON KK·Filed 2018·Granted Dec 10, 2019·2 cites·22 claims
- 1284US7843774B2Optical information recording and reproducing apparatus capable of coma aberration correctionCANON KK·Filed 2006·Granted Nov 30, 2010·6 cites·9 claims
- 1381US12487136B2Force sensor and robot equipped with force sensorCANON KK·Filed 2023·Granted Dec 2, 2025·0 cites·11 claims
- 1478US9329058B2Encoder that detects displacement of an object, and lens apparatus and camera having the sameCANON KK·Filed 2013·Granted May 3, 2016·4 cites·12 claims
- 1576US8698071B2Rotary encoder having multiple slit arrays, which detects rotation angleNAGURA CHIHIRO·Filed 2010·Granted Apr 15, 2014·3 cites·6 claims
- 1675US8546747B2Rotary encoder and optical apparatusNAGURA CHIHIRO·Filed 2011·Granted Oct 1, 2013·3 cites·8 claims
- 1774US7561500B2Apparatus using light-attenuating element for optically reproducing and recording informationCANON KK·Filed 2006·Granted Jul 14, 2009·2 cites·26 claims
- 1873US10209102B2Position detection apparatus, machine tool apparatus, and exposure apparatusCANON KK·Filed 2017·Granted Feb 19, 2019·1 cites·12 claims
- 1973US9121731B2Encoder having a scale with two areas in which an increasing direction of the amplitude of the energy distribution is opposite between the two areas for precisely obtaining a position of the scaleHORIGUCHI HARUHIKO·Filed 2012·Granted Sep 1, 2015·3 cites·15 claims
- 2070US9778035B2Scale, encoder, lens apparatus, and image pickup system having a plurality of patterns with different modulating periodsCANON KK·Filed 2013·Granted Oct 3, 2017·2 cites·24 claims
- 2169US9024251B2Encoder having a scale that includes block patternsNAGURA CHIHIRO·Filed 2012·Granted May 5, 2015·2 cites·17 claims
- 2269US8497469B2Rotary encoder that detects rotation angleNAGURA CHIHIRO·Filed 2011·Granted Jul 30, 2013·2 cites·10 claims
- 2366US11841287B2Force sensor and robot equipped with force sensorCANON KK·Filed 2020·Granted Dec 12, 2023·0 cites·6 claims
- 2465US9470557B2Encoder and apparatus using encoderCANON KK·Filed 2014·Granted Oct 18, 2016·1 cites·10 claims
- 2564US9354089B2EncoderNAGURA CHIHIRO·Filed 2012·Granted May 31, 2016·3 cites·13 claims
- 2660US7145847B2Annealed optical information recording medium and optical information recording/reproducing apparatus for the sameCANON KK·Filed 2003·Granted Dec 5, 2006·4 cites·2 claims
- 2760US2024003764A1Tactile sensor and apparatus including tactile sensorCANON KK·Filed 2023·Application pending·0 cites
- 2856US11221238B2Optical encoder and drive control device comprising a light receiving element to receive a first interference fringe formed by a first periodic pattern and a second diffracted light from a second periodic pattern toward the first periodic patternCANON KK·Filed 2020·Granted Jan 11, 2022·0 cites·11 claims
- 2956US7787332B2Optical information recording-reproducing apparatusCANON KK·Filed 2008·Granted Aug 31, 2010·0 cites·5 claims
- 3055US12163813B2Optical encoder and control apparatus for receiving light that forms moire fringes from a grating patternCANON KK·Filed 2021·Granted Dec 10, 2024·0 cites·5 claims
- 3155US10969284B2Optical sensor and apparatus including optical sensorCANON KK·Filed 2019·Granted Apr 6, 2021·0 cites·11 claims
- 3254US10215596B2Position detection apparatus, lens apparatus, image pickup system, machine tool apparatus, exposure apparatus, position detection method, and non-transitory computer-readable storage medium which are capable of detecting reference position with high accuracyCANON KK·Filed 2016·Granted Feb 26, 2019·0 cites·17 claims
- 3351US11085799B2Position detection apparatus that detects a position of an object by detecting light from a scale, and lithography apparatus, force sensor, and apparatus having force sensor including the position detection apparatusCANON KK·Filed 2019·Granted Aug 10, 2021·0 cites·14 claims
- 3450US10401152B2Position detection apparatus, force sensor, and apparatusCANON KK·Filed 2017·Granted Sep 3, 2019·0 cites·11 claims
- 3549US2007121433A1Optical information recording and reproducing apparatusCANON KK·Filed 2006·Application pending·0 cites
- 3648US9234772B2Optical encoder and apparatus including the sameCANON KK·Filed 2012·Granted Jan 12, 2016·0 cites·21 claims
- 3747US9464924B2Scale, displacement detection apparatus, lens apparatus, image pickup system, and assembling apparatusCANON KK·Filed 2013·Granted Oct 11, 2016·0 cites·15 claims
- 3847US9383230B2Position detection apparatus, lens apparatus, image pickup system, machine tool apparatus, position detection method, and non-transitory computer-readable storage mediumCANON KK·Filed 2014·Granted Jul 5, 2016·0 cites·12 claims
- 3943US2005094509A1Optical head and optical information recording/reproducing apparatus using sameCANON KK·Filed 2004·Application pending·0 cites
- 4041US8993954B2Optical encoder having a high resolution detection mode to detect a fine pitch pattern and a low resolution detection mode to detect a coarse pitch patternHORIGUCHI HARUHIKO·Filed 2012·Granted Mar 31, 2015·0 cites·5 claims
- 4139US10540559B2Position detection apparatus, lens apparatus, image pickup system, machine tool apparatus, position detection method, and non-transitory computer-readable storage medium which are capable of detecting abnormalityCANON KK·Filed 2015·Granted Jan 21, 2020·0 cites·29 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →