Inventor · disambiguated record
Keiichi Tsuda
Also filed as: TSUDA KEIICHI
34 granted patents·8 pending applications·374 citations·filing 1992–2024
96Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES24SUMITOMO ELECTRIC HARDMETAL CORP5MITSUBISHI ELECTRIC CORP3SUMITOMO ELEC HARDMETAL CORP3J MORITA MFG CORP2
Top patents by PatentIndex Score
42 records- 0195US7060345B2Coated toolSUMITOMO ELECTRIC INDUSTRIES·Filed 2003·Granted Jun 13, 2006·72 cites·16 claims
- 0295US6719074B2Insert chip of oil-drilling tricone bit, manufacturing method thereof and oil-drilling tricone bitJAPAN NAT OIL CORP·Filed 2002·Granted Apr 13, 2004·177 cites·22 claims
- 0387US9850557B2Cermet and cutting toolSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Dec 26, 2017·3 cites·6 claims
- 0487US7976251B2Indexable insertSUMITOMO ELEC HARDMETAL CORP·Filed 2009·Granted Jul 12, 2011·24 cites·3 claims
- 0586US10039475B2Intraoral three-dimensional measuring device, intraoral three-dimensional measuring method, and intraoral three-dimensional measurement result display methodJ MORITA MFG CORP·Filed 2016·Granted Aug 7, 2018·8 cites·18 claims
- 0684US6881475B2Amorphous carbon coated tool and fabrication method thereofNISSIN ELECTRIC CO LTD·Filed 2002·Granted Apr 19, 2005·31 cites·23 claims
- 0779US10603721B2Hard alloy and cutting toolSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Mar 31, 2020·1 cites·11 claims
- 0876US12370608B1Cemented carbide and cutting toolSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2024·Granted Jul 29, 2025·0 cites·4 claims
- 0976US9457407B2Surface-coated cutting toolSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2013·Granted Oct 4, 2016·4 cites·18 claims
- 1072US12409498B2Cemented carbide and cutting toolSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2024·Granted Sep 9, 2025·0 cites·7 claims
- 1171US12371795B2Cutting toolSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2021·Granted Jul 29, 2025·0 cites·15 claims
- 1271US12337390B1Cemented carbide and cutting toolSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2024·Granted Jun 24, 2025·0 cites·4 claims
- 1370US10383549B2Intraoral three-dimensional measuring device, intraoral three-dimensional measuring method, and intraoral three-dimensional measurement result display methodJ MORITA MFG CORP·Filed 2018·Granted Aug 20, 2019·1 cites·21 claims
- 1469US12319991B2Base material and cutting toolSUMITOMO ELECTRIC INDUSTRIES·Filed 2021·Granted Jun 3, 2025·0 cites·14 claims
- 1569US11117196B2Surface-coated cutting toolSUMITOMO ELECTRIC INDUSTRIES·Filed 2019·Granted Sep 14, 2021·0 cites·10 claims
- 1664US12005507B2Cemented carbide and cutting tool including same as substrateSUMITOMO ELECTRIC INDUSTRIES·Filed 2020·Granted Jun 11, 2024·0 cites·7 claims
- 1761US9243323B2Surface-coated cutting tool and method of manufacturing the sameSUMITOMO ELEC HARDMETAL CORP·Filed 2013·Granted Jan 26, 2016·0 cites·4 claims
- 1861US9216456B2Surface-coated cutting tool and method of manufacturing the sameSUMITOMO ELEC HARDMETAL CORP·Filed 2013·Granted Dec 22, 2015·0 cites·4 claims
- 1960US5577424ANitrogen-containing sintered hard alloySUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Nov 26, 1996·14 cites·19 claims
- 2059US11214853B2Hard material and cutting toolSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Jan 4, 2022·0 cites·6 claims
- 2159US6057046ANitrogen-containing sintered alloy containing a hard phaseSUMITOMO ELECTRIC INDUSTRIES·Filed 1996·Granted May 2, 2000·15 cites·24 claims
- 2255US11401587B2Cemented carbide, cutting tool containing the same, and method of manufacturing cemented carbideSUMITOMO ELECTRIC INDUSTRIES·Filed 2019·Granted Aug 2, 2022·0 cites·7 claims
- 2355US5331630ARenewal method and apparatus for AU-4 and TU-3 pointers of synchronous digital hierarchyNEC CORP·Filed 1992·Granted Jul 19, 1994·18 cites·1 claims
- 2455US2021040587A1Cemented carbide, cutting tool, and method of manufacturing cemented carbideSUMITOMO ELECTRIC INDUSTRIES·Filed 2019·Application pending·0 cites
- 2554US11225412B2Titanium carbonitride powder and method for manufacturing titanium carbonitride powderSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Jan 18, 2022·0 cites·5 claims
- 2654US2023114244A1Cutting toolSUMITOMO ELECTRIC INDUSTRIES·Filed 2021·Application pending·0 cites
- 2752US11717978B2Cemented carbide and cutting tool including same as substrateSUMITOMO ELECTRIC INDUSTRIES·Filed 2020·Granted Aug 8, 2023·0 cites·8 claims
- 2852US2020171582A1Surface-coated cutting toolSUMITOMO ELECTRIC INDUSTRIES·Filed 2019·Application pending·0 cites
- 2949US10987739B2Cemented carbide and cutting toolSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Apr 27, 2021·0 cites·6 claims
- 3049US10858252B2Complex carbonitride powder and method for producing sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Dec 8, 2020·0 cites·2 claims
- 3149US9850558B2Cermet, method for producing cermet, and cutting toolSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Dec 26, 2017·0 cites·6 claims
- 3247US10519067B2Cemented carbide and cutting toolSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Dec 31, 2019·0 cites·5 claims
- 3347US2023177716A1Information processing device, non-transitory computer-readable storage medium, and information processing methodMITSUBISHI ELECTRIC CORP·Filed 2020·Application pending·0 cites
- 3446US2020171581A1Surface-coated cutting toolSUMITOMO ELECTRIC INDUSTRIES·Filed 2019·Application pending·0 cites
- 3542US11700299B2Information processing apparatus, information processing system, non-transitory computer-readable medium, and information processing methodMITSUBISHI ELECTRIC CORP·Filed 2019·Granted Jul 11, 2023·0 cites·14 claims
- 3641US10689748B2CoatingSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Jun 23, 2020·0 cites·12 claims
- 3741US2025199646A1Contactless input deviceMITSUBISHI ELECTRIC CORP·Filed 2022·Application pending·0 cites
- 3840US11408065B2CoatingSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Aug 9, 2022·0 cites·18 claims
- 3937US2017136571A1Rotary tool and joining methodSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Application pending·0 cites
- 4037US2017151625A1Rotary tool and joining methodSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Application pending·0 cites
- 4133US8478810B2Message hub apparatus, program product, and methodATSUMI IZUMI·Filed 2007·Granted Jul 2, 2013·0 cites·20 claims
- 4227US6202769B1Drilling stabilizerJAPANESE NAT OIL CORP·Filed 1999·Granted Mar 20, 2001·6 cites·6 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →