Inventor · disambiguated record
Masaaki Jindai
Also filed as: JINDAI MASAAKI
10 granted patents·4 pending applications·221 citations·filing 1985–2021
89Inventor score
Files withSUMITOMO ELECTRIC HARDMETAL CORP9SUMITOMO ELECTRIC INDUSTRIES3NASU KAZUCHIKA1SUMITOMO ELEC HARDMETAL CORP1
Top patents by PatentIndex Score
14 records- 0194US4728231ADrill bit structureSUMITOMO ELECTRIC INDUSTRIES·Filed 1985·Granted Mar 1, 1988·104 cites·15 claims
- 0289US10155269B2DrillSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2015·Granted Dec 18, 2018·5 cites·7 claims
- 0386US10646934B2DrillSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2018·Granted May 12, 2020·5 cites·15 claims
- 0484US5800101ADrillSUMITOMO ELECTRIC INDUSTRIES·Filed 1997·Granted Sep 1, 1998·53 cites·4 claims
- 0578US10766077B2Cutting toolSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2017·Granted Sep 8, 2020·2 cites·8 claims
- 0676US8197163B2Indexable insert and drill using the sameNASU KAZUCHIKA·Filed 2008·Granted Jun 12, 2012·10 cites·4 claims
- 0775US9522428B2Small-diameter drillSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2013·Granted Dec 20, 2016·4 cites·4 claims
- 0874US5954459AThrowaway inserts and throwaway drillSUMITOMO ELECTRIC INDUSTRIES·Filed 1998·Granted Sep 21, 1999·37 cites·8 claims
- 0967US10300534B2DrillSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2015·Granted May 28, 2019·1 cites·4 claims
- 1056US2024165717A1Drill head, tip exchange drill, and drillSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2021·Application pending·0 cites
- 1153US2023226619A1DrillSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2020·Application pending·0 cites
- 1248US11660691B2ReamerSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2020·Granted May 30, 2023·0 cites·4 claims
- 1345US2021291282A1DrillSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2019·Application pending·0 cites
- 1443US2015283625A1Two-edge double margin drillSUMITOMO ELEC HARDMETAL CORP·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →