Topic leaderboard
Pianos & similar stringed instruments
Ranked by the PatentIndex Score — a 1–99 percentile within G10C · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest G10C patents became public in the last 2 years — the current frontier
- 199Yasushi Terai4 patents · 9 citations
- 292Kenzo Ichikawa2 patents · 2 citations
- 383Takahiro Mizushina2 patents · 2 citations
- 475Wataru Nimura2 patents · 2 citations
- 567Francisco J. Morales1 patents · 0 citations
- 658James Boustead Seery1 patents · 0 citations
- 750Kousuke Ishikawa1 patents · 0 citations
- 842Maximilian Engelmann1 patents · 0 citations
- 933Takuma Murai1 patents · 0 citations
- 1025Xiuling Guo1 patents · 0 citations
- 1117Yutaka Goto1 patents · 0 citations
- 128ISHIDA ANNE1 patents · 0 citations
- 131IWASE MASAHIKO1 patents · 0 citations
Active· last 5 yrs
Sustained G10C output across the last 5 years
- 199Ichiro Osuga27 patents · 149 citations
- 296Akihisa Hoshino8 patents · 29 citations
- 392Shigeyuki Nagatsuma4 patents · 49 citations
- 488Yukihide Takata8 patents · 16 citations
- 583Kirk Burgett9 patents · 15 citations
- 679Shinji Sumino5 patents · 7 citations
- 775Mutsuo Sawada5 patents · 8 citations
- 871Atsushi Oshiro4 patents · 5 citations
- 967Yasushi Terai4 patents · 9 citations
- 1063Masaki Kasubuchi3 patents · 4 citations
- 1158Timothy Jenson2 patents · 5 citations
- 1254Banri Abe3 patents · 2 citations
- 1350Masatsugu Okazaki3 patents · 2 citations
- 1446Takashi Kitagawa3 patents · 2 citations
- 1542John Gunderson2 patents · 3 citations
- 1638Fred Palmer4 patents · 2 citations
- 1733Takahiro Murai2 patents · 4 citations
- 1829Daisuke Noto2 patents · 2 citations
- 1925Josep Bergada Bombi2 patents · 2 citations
- 2021Kenzo Ichikawa2 patents · 2 citations
- 2117Takahiro Mizushina2 patents · 2 citations
- 2213Wataru Nimura2 patents · 2 citations
- 238Taishi Shinohara2 patents · 1 citations
- 244Hirokatsu Katoh2 patents · 1 citations
- 251Naoto Imamura2 patents · 1 citations
All-time canon
Career PatentIndex Score in G10C
- 199Takamichi Masubuchi10 patents · 305 citations
- 296Shinji Kumano16 patents · 284 citations
- 392Nobuo Sugiyama12 patents · 253 citations
- 488Shinya Koseki12 patents · 230 citations
- 583Muneo Ishida14 patents · 178 citations
- 679Yoshiaki Shimoda13 patents · 194 citations
- 775Ichiro Osuga27 patents · 149 citations
- 871Shinji Niitsuma8 patents · 104 citations
- 967Thomas E. Kimble6 patents · 99 citations
- 1063Yasutoshi Kaneko6 patents · 112 citations
- 1158Hajime Hayashida9 patents · 123 citations
- 1254Tadaharu Kato8 patents · 121 citations
- 1350David Meisel7 patents · 69 citations
- 1446Paul B. Vandervoort5 patents · 104 citations
- 1542Donald K. Coles5 patents · 76 citations
- 1638Shigeaki Sato5 patents · 79 citations
- 1733Harold A. Conklin, Jr.6 patents · 71 citations
- 1829Yasuhiko Oba10 patents · 85 citations
- 1925Fumiyoshi Furuki6 patents · 52 citations
- 2021Warren C. Kennedy5 patents · 37 citations
- 2117David C. Stanwood4 patents · 83 citations
- 2213Hiroyoshi Takahashi5 patents · 49 citations
- 238Masanori Katsuta5 patents · 46 citations
- 244Raymon A. Willis3 patents · 180 citations
- 251Darrell G. Fandrich4 patents · 54 citations
Rising· last 2 yrs
The top-scoring G10C patents made public in the last 2 years
- 199US12512085B2✦ AIKeyboard instrument0 cites · 20240% earned
- 288US12324509B2✦ AIMusic rack unit-mounting structure of grand piano0 cites · 20240% earned
- 375US11869460B1✦ AIApparatus for and methods of action repair and/or regulation of harmonic string and percus0 cites · 20240% earned
- 463US12456444B2Keyboard device and cooling method of drive device0 cites · 20240% earned
- 550US12347523B2Height-adjustable desk-type electric piano0 cites · 20240% earned
- 638US12542118B2Keyboard device for keyboard instrument0 cites · 20240% earned
- 725US12475865B2Hammer device for keyboard instrument0 cites · 20240% earned
- 813US12073811B2Tuning pin tool0 cites · 20240% earned
- 91US12272337B2Keyboard instrument, in particular a piano0 cites · 20240% earned
Active· last 5 yrs
The top-scoring G10C patents of the last 5 years
- 199US11380289B1✦ AIPiano tuning retention system5 cites · 202277% earned
- 296US12136403B2✦ AIKeyboard device for keyboard instrument4 cites · 202382% earned
- 392US11508341B2✦ AIKeyboard device for keyboard instrument4 cites · 202282% earned
- 488US11574615B2Keyboard apparatus and load application method4 cites · 202282% earned
- 583US12315474B2Keyboard instrument2 cites · 202376% earned
- 679US11721309B1Pin turning tool kit2 cites · 202376% earned
- 775USD1004690SElectronic piano3 cites · 202380% earned
- 871US11527225B2Sensor module, system of modules for a piano keyboard, and corresponding method2 cites · 202267% earned
- 967US12223934B2Keyboard device for keyboard instrument2 cites · 202276% earned
- 1063US11756513B1Elliptical silicone roller for grand piano action with customized durometer reading2 cites · 202376% earned
- 1158USD1004689SElectronic piano2 cites · 202376% earned
- 1254US11538444B2Keyboard apparatus and key guiding method2 cites · 202276% earned
- 1350US11195499B2Keyboard instrument and manufacturing method therefor2 cites · 202167% earned
- 1446US11776512B2Keyboard device2 cites · 202376% earned
- 1542US12183312B2Vibration plate and musical instrument1 cites · 202356% earned
- 1638US12315481B2Keyboard instrument1 cites · 202267% earned
- 1733US11056084B1Pin turning tool kit1 cites · 202167% earned
- 1829US11551647B2Keyboard instrument1 cites · 202267% earned
- 1925US11545119B2Rotation mechanism and keyboard apparatus0 cites · 20210% earned
- 2021US12394396B2Keyboard instrument, key base molding method, and key base molding mold0 cites · 20230% earned
- 2117US12437738B2Case and keyboard instrument0 cites · 20230% earned
- 2213US12305685B2Fastening structure and keyboard device0 cites · 20230% earned
- 238US12451105B2Instrument stand and keyboard instrument set0 cites · 20230% earned
- 244US11862134B2Key support structure of keyboard device0 cites · 20210% earned
- 251US12154531B2Key for keyboard device0 cites · 20230% earned
All-time canon
The defining G10C patents of the whole record
- 199US5741990A✦ AIMethod of and means for producing musical note relationships270 cites · 199894% earned
- 296US5107262A✦ AIModular retroactive keyboard and a flat modular actuator169 cites · 199294% earned
- 392US5908997A✦ AIElectronic music instrument system with musical keyboard126 cites · 199987% earned
- 488US6160213AElectronic music instrument system with musical keyboard115 cites · 200087% earned
- 583US5952806AInner force sense controller for providing variable force to multidirectional moving objec94 cites · 199993% earned
- 679US5415071AMethod of and means for producing musical note relationships92 cites · 199593% earned
- 775US5459282ASystem for rejuvenating vintage organs and pianos89 cites · 199593% earned
- 871US4744281AAutomatic sound player system having acoustic and electronic sound sources86 cites · 198893% earned
- 967US5440072ASystem for rejuvenating vintage organs and pianos83 cites · 199593% earned
- 1063US6084167AKeyboard instrument with touch responsive display unit65 cites · 200092% earned
- 1158US5065660APiano tuning system64 cites · 199192% earned
- 1254US4914999AKeyboard assembly for forming keyboard apparatus of electronic musical instrument64 cites · 199092% earned
- 1350US5646648AMusically enhanced computer keyboard and method for entering musical and textual informati59 cites · 199792% earned
- 1446US5463925ASplit-keyboard midi controller57 cites · 199592% earned
- 1542US4913026AAutomatic player piano with touch strength estimator57 cites · 199092% earned
- 1638US5697122ARotary damper and closure device with such rotary damper55 cites · 199792% earned
- 1733US4704931AAcoustic tone inhibiting means for keyboard musical instrument55 cites · 198792% earned
- 1829US4970928AHammering operation control unit of piano accompanied with automatic performance function54 cites · 199092% earned
- 1925US5515763ATactile key tops54 cites · 199692% earned
- 2021US5469769ASoundboard for musical instruments53 cites · 199592% earned
- 2117US5574241AKeyboard apparatus with common stopper for key and hammer52 cites · 199692% earned
- 2213US4031800AKeyboard for a musical instrument47 cites · 197792% earned
- 238US4491050AFoot-controlled musical instrument46 cites · 198592% earned
- 244US5864078AElectronic piano having an integrated music stand and touch screen interfaced display46 cites · 199992% earned
- 251US4678715AProcess for improving wood and use of the improved wood45 cites · 198792% earned
Rising· last 2 yrs
Assignees whose newest G10C patents became public in the last 2 years — the current frontier
- 199CASIO COMPUTER CO LTD36 patents · 139 citations
- 283ROLAND CORP16 patents · 65 citations
- 367KK KAWAI GAKKI SEISAKUSHO23 patents · 37 citations
- 450JINJIANG HEXIANGSHENG ELECTRONIC TECH CO LTD1 patents · 0 citations
- 533MORALES FRANCISCO1 patents · 0 citations
- 617SEERY JAMES BOUSTEAD1 patents · 0 citations
- 71WILHELM SCHIMMEL PIANOFORTE FABRIK GES MIT BESHRAENKTER HAFTUNG1 patents · 0 citations
Active· last 5 yrs
Sustained G10C output across the last 5 years
- 199YAMAHA CORP253 patents · 2,786 citations
- 296CASIO COMPUTER CO LTD36 patents · 139 citations
- 392ROLAND CORP16 patents · 65 citations
- 488KK KAWAI GAKKI SEISAKUSHO23 patents · 37 citations
- 583BURGETT KIRK5 patents · 11 citations
- 679JINJIANG BEISITE ELECTRONIC TECH CO LTD2 patents · 5 citations
- 775JENSON TIMOTHY2 patents · 5 citations
- 871GUNDERSON JOHN H2 patents · 3 citations
- 967PALMER FRED4 patents · 2 citations
- 1063POCKETPIANO S L2 patents · 2 citations
- 11582UNIFY INC1 patents · 0 citations
- 1254BATTLE CLARK1 patents · 0 citations
- 1350BAXTER KEITH M1 patents · 0 citations
- 1446GALLOUP BRYAN JOHN1 patents · 0 citations
- 1542IKONEN KARI1 patents · 0 citations
- 1638JINJIANG HEXIANGSHENG ELECTRONIC TECH CO LTD1 patents · 0 citations
- 1733KEYBIRD INSTR APS1 patents · 0 citations
- 1829LUO JINKAI1 patents · 0 citations
- 1925MEDELI ELECTRONICS SHANGHAI CO LTD1 patents · 0 citations
- 2021MEDELI MUSICAL INSTR ZHUHAI CO LTD1 patents · 0 citations
- 2117MORALES FRANCISCO1 patents · 0 citations
- 2213SEERY JAMES BOUSTEAD1 patents · 0 citations
- 238SONY GROUP CORP1 patents · 0 citations
- 244SUZHOU LI YUE MUSICAL INSTR CO LTD1 patents · 0 citations
- 251VINTAGE VIBE LLC1 patents · 0 citations
All-time canon
All-time PatentIndex Score in G10C
- 199YAMAHA CORP253 patents · 2,786 citations
- 296NIPPON MUSICAL INSTRUMENTS MFG39 patents · 437 citations
- 392KAWAI MUSICAL INSTR MFG CO106 patents · 1,080 citations
- 488BALDWIN PIANO & ORGAN CO8 patents · 104 citations
- 583COLES DONALD K5 patents · 76 citations
- 679CASIO COMPUTER CO LTD36 patents · 139 citations
- 775KOEVERING COMPANY VAN3 patents · 287 citations
- 871RENSSELAER POLYTECH INST5 patents · 55 citations
- 967ROLAND CORP16 patents · 65 citations
- 1063CURRIER PIANO COMPANY INC5 patents · 56 citations
- 1158KK KAWAI GAKKI SEISAKUSHO23 patents · 37 citations
- 1254WURLITZER CO5 patents · 38 citations
- 1350CBS INC4 patents · 44 citations
- 1446BURGETT INC4 patents · 67 citations
- 1542SUNLAND INF TECH CO LTD11 patents · 13 citations
- 1638STEINWAY MUSICAL INSTR INC7 patents · 20 citations
- 1733STEINWAY INC7 patents · 24 citations
- 1829STEINWAY MUSICAL PROPERTIES3 patents · 33 citations
- 1925GULBRANSEN INC2 patents · 67 citations
- 2021INOUYE ASAMI4 patents · 22 citations
- 2117COHEN LEWIS NEAL3 patents · 21 citations
- 2213FRANZMANN RAINER2 patents · 63 citations
- 238SCHIMMEL PIANOFORTEFAB3 patents · 29 citations
- 244MURAMATSU SHIGERU4 patents · 17 citations
- 251BURGETT KIRK5 patents · 11 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth