Inventor · disambiguated record
Naoyuki Ishigaki
Also filed as: ISHIGAKI NAOYUKI
14 granted patents·1 pending application·345 citations·filing 1982–2004
94Inventor score
Files withSUMITOMO SPEC METALS11SUMITOMO METAL IND2JAPAN SCIENCE & TECH AGENCY1MEIDENSHA ELECTRIC MFG CO LTD1
Top patents by PatentIndex Score
15 records- 0190US6491765B2Rare earth magnet and method for manufacturing the sameSUMITOMO SPEC METALS·Filed 2001·Granted Dec 10, 2002·31 cites·17 claims
- 0290US5666635AFabrication methods for R-Fe-B permanent magnetsSUMITOMO SPEC METALS·Filed 1995·Granted Sep 9, 1997·58 cites·21 claims
- 0386US6537385B2Rare earth magnet and method for manufacturing the sameSUMITOMO SPEC METALS·Filed 2002·Granted Mar 25, 2003·22 cites·11 claims
- 0485US4770702AProcess for producing the rare earth alloy powdersSUMITOMO SPEC METALS·Filed 1988·Granted Sep 13, 1988·40 cites·14 claims
- 0583US5788782AR-FE-B permanent magnet materials and process of producing the sameSUMITOMO SPEC METALS·Filed 1995·Granted Aug 4, 1998·39 cites·38 claims
- 0680US7402226B2Minute high-performance rare earth magnet for micromini product and process for producing the sameJAPAN SCIENCE & TECH AGENCY·Filed 2004·Granted Jul 22, 2008·19 cites·4 claims
- 0778US6331214B1Monolithically bonded construct of rare-earth magnet and metal material and method for bonding sameMEIDENSHA ELECTRIC MFG CO LTD·Filed 1998·Granted Dec 18, 2001·41 cites·20 claims
- 0873US4769063AMethod for producing rare earth alloySUMITOMO SPEC METALS·Filed 1986·Granted Sep 6, 1988·21 cites·5 claims
- 0970US4767450AProcess for producing the rare earth alloy powdersSUMITOMO SPEC METALS·Filed 1985·Granted Aug 30, 1988·21 cites·17 claims
- 1064US5527504APowder mixture for use in compaction to produce rare earth iron sintered permanent magnetsSUMITOMO METAL IND·Filed 1995·Granted Jun 18, 1996·18 cites·26 claims
- 1156US5486224APowder mixture for use in compaction to produce rare earth iron sintered permanent magnetsSUMITOMO METAL IND·Filed 1994·Granted Jan 23, 1996·12 cites·23 claims
- 1254US4484957APermanent magnetic alloySUMITOMO SPEC METALS·Filed 1982·Granted Nov 27, 1984·9 cites·19 claims
- 1341US2003084964A1Rare earth magnet and method for manufacturing the sameSUMITOMO SPEC METALS·Filed 2002·Application pending·0 cites
- 1440US4898613ARare earth alloy powder used in production of permanent magnetsSUMITOMO SPEC METALS·Filed 1988·Granted Feb 6, 1990·7 cites·9 claims
- 1533US6221270B1Process for producing compound for rare earth metal resin-bonded magnetSUMITOMO SPEC METALS·Filed 1999·Granted Apr 24, 2001·7 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →