Inventor · disambiguated record
Tadaharu Kato
Also filed as: KATO TADAHARU
28 granted patents·1 pending application·447 citations·filing 1981–2024
97Inventor score
Top patents by PatentIndex Score
29 records- 0191US7642448B2Optical transducer system for monitoring movable parts, optical modulator and musical instrument using the sameYAMAHA CORP·Filed 2007·Granted Jan 5, 2010·19 cites·7 claims
- 0288US6515213B2Keyboard musical instrument for exactly producing tones and hammer sensor varying output signal exactly representing physical quantity of hammerYAMAHA CORP·Filed 2001·Granted Feb 4, 2003·28 cites·11 claims
- 0386US6403872B2Keyboard musical instrument faithfully reproducing original performance without complicated tuning and music data generating system incorporated thereinYAMAHA CORP·Filed 2000·Granted Jun 11, 2002·37 cites·34 claims
- 0483US6933435B2Easily installable optical position transducer and keyboard musical instrument having the sameYAMAHA CORP·Filed 2004·Granted Aug 23, 2005·25 cites·5 claims
- 0582US7132643B2Optical transducer having optical modulator in the vicinity of rotational axis of moving object and musical instrument using the sameYAMAHA CORP·Filed 2004·Granted Nov 7, 2006·26 cites·21 claims
- 0679US6420642B1Automatic player incorporated in keyboard musical instrument and plunger sensor for detecting motion of plungerYAMAHA CORP·Filed 2000·Granted Jul 16, 2002·24 cites·8 claims
- 0778US6084167AKeyboard instrument with touch responsive display unitYAMAHA CORP·Filed 1997·Granted Jul 4, 2000·65 cites·4 claims
- 0874US7049576B2Keyboard musical instrument having easily installable optical position transducer with coupler for coupling optical modulator to moving objectYAMAHA CORP·Filed 2002·Granted May 23, 2006·15 cites·4 claims
- 0974US6515565B1Electromagnetic device equipped with solenoid, automatic player using the same and automatic player keyboard musical instrumentYAMAHA CORP·Filed 2000·Granted Feb 4, 2003·17 cites·10 claims
- 1073US6940005B2Keyboard musical instrument for exactly producing tones and hammer sensor varying output signal exactly representing physical quantity of hammerYAMAHA CORP·Filed 2002·Granted Sep 6, 2005·12 cites·8 claims
- 1173US4700392ASpeech signal detector having adaptive threshold valuesNEC CORP·Filed 1984·Granted Oct 13, 1987·39 cites·6 claims
- 1271US7186967B2Optical transducer having optical fibers resiliently warped near optical devices and musical instrument using the sameYAMAHA CORP·Filed 2004·Granted Mar 6, 2007·13 cites·20 claims
- 1371US4395595ADigital pushbutton signalling receiverNIPPON ELECTRIC CO·Filed 1981·Granted Jul 26, 1983·19 cites·5 claims
- 1467US7044655B2Multicore optical fiber connector for enhancing uniformity of amount of incident light and optical sensor array using the sameYAMAHA CORP·Filed 2003·Granted May 16, 2006·10 cites·5 claims
- 1567US2025182721A1Key for keyboard apparatusYAMAHA CORP·Filed 2024·Application pending·0 cites
- 1666US6870151B2Shutter, optical sensor system using the same and shutter holder incorporated thereinYAMAHA CORP·Filed 2003·Granted Mar 22, 2005·12 cites·47 claims
- 1766US6815603B2Unbreakable and economical optical sensor array and keyboard musical instrument using the sameYAMAHA CORP·Filed 2002·Granted Nov 9, 2004·12 cites·24 claims
- 1865US7116849B2Optical transducer having optical fiber plug transparent to curing light and non-transparent to sensing lightYAMAHA CORP·Filed 2004·Granted Oct 3, 2006·11 cites·20 claims
- 1960US10304435B2Musical instrument and acoustic transducer deviceYAMAHA CORP·Filed 2016·Granted May 28, 2019·1 cites·8 claims
- 2060US6933494B2Optical sensor heads exhibiting regularity in optical characteristics and optical sensor system using the sameYAMAHA CORP·Filed 2003·Granted Aug 23, 2005·8 cites·29 claims
- 2157US9520107B2Keyboard musical instrumentYAMAHA CORP·Filed 2014·Granted Dec 13, 2016·0 cites·4 claims
- 2257US7259313B2Musical instrument system capable of locating missing remote controller, musical instrument, remote controller and method use thereinYAMAHA CORP·Filed 2004·Granted Aug 21, 2007·8 cites·34 claims
- 2355US9269335B2Installation structure for acoustic transducerYAMAHA CORP·Filed 2015·Granted Feb 23, 2016·1 cites·15 claims
- 2454US7121737B2Light emitting unit operative at high coupling efficiency, optical sensor system and musical instrument using the sameYAMAHA CORP·Filed 2003·Granted Oct 17, 2006·4 cites·24 claims
- 2553US7514627B2Keyboard musical instrument having sensor unit exactly located by means of plural locatorsYAMAHA CORP·Filed 2005·Granted Apr 7, 2009·1 cites·19 claims
- 2649US5334977AADPCM transcoder wherein different bit numbers are used in code conversionNEC CORP·Filed 1992·Granted Aug 2, 1994·18 cites·9 claims
- 2747US7259319B2Performance operator control apparatusYAMAHA CORP·Filed 2004·Granted Aug 21, 2007·2 cites·12 claims
- 2841US5323449AApparatus for communication by telephone set and facsimile set through order wiresNEC CORP·Filed 1991·Granted Jun 21, 1994·7 cites·4 claims
- 2939US4571737AAdaptive differential pulse code modulation decoding circuitNEC CORP·Filed 1983·Granted Feb 18, 1986·13 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →