Inventor · disambiguated record
Kiyoshi Kojima
Also filed as: KOJIMA KIYOSHI
21 granted patents·6 pending applications·277 citations·filing 1974–2022
95Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD13KWANSEI GAKUIN EDUCATIONAL FOUND8NIPPON STEEL & SUMIKIN MAT CO3KOKUYO KK2SHOWA DENKO KK1
Top patents by PatentIndex Score
27 records- 0196US12098476B2Method for producing a SiC substrate via an etching step, growth step, and peeling stepKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2020·Granted Sep 24, 2024·5 cites·11 claims
- 0293US5364253AMagnetic circuit component molding deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Nov 15, 1994·61 cites·5 claims
- 0389US12247319B2Method for producing a SiC seed crystal for growth of a SiC ingot by heat-treating in a main container made of a SiC materialKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2020·Granted Mar 11, 2025·2 cites·17 claims
- 0482US10202706B2Silicon carbide single crystal wafer and method of manufacturing a silicon carbide single crystal ingotNIPPON STEEL & SUMIKIN MAT CO·Filed 2014·Granted Feb 12, 2019·2 cites·10 claims
- 0571US10031089B2Method for evaluating internal stress of silicon carbide monocrystalline wafer and method for predicting warpage in silicone carbide monocrystalline waferNIPPON STEEL & SUMIKIN MAT CO·Filed 2014·Granted Jul 24, 2018·3 cites·4 claims
- 0669US5609695AMethod for producing alloy powder of the R2 T17 system, a method for producing magnetic powder of the R2 T17 Nx system, and a high pressure heat-treatment apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Mar 11, 1997·16 cites·11 claims
- 0767US5718474AFoldable chairKOKUYO KK·Filed 1995·Granted Feb 17, 1998·41 cites·6 claims
- 0867US5634684AFoldable chairKOKUYO KK·Filed 1995·Granted Jun 3, 1997·29 cites·3 claims
- 0966US4042429AMagnetic alloys having wasp-waisted magnetic hysteresis loopMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1974·Granted Aug 16, 1977·11 cites·3 claims
- 1064US3976519AMachinable anisotropic permanent magnets of Mn-Al-C alloysMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1974·Granted Aug 24, 1976·10 cites·7 claims
- 1162US4133703APermanent magnetic Mn-Al-C alloyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1977·Granted Jan 9, 1979·11 cites·3 claims
- 1262US4023991AAnisotropic permanent magnet of Mn-Al-C alloyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1976·Granted May 17, 1977·12 cites·18 claims
- 1358US3944445AMethod of making permanent magnets of Mn-Al-C alloyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1974·Granted Mar 16, 1976·8 cites·4 claims
- 1457US5751828AMagnetic circuit unit for loud-speaker and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted May 12, 1998·31 cites·16 claims
- 1554US5684076ARare earth-iron-nitrogen based magnetic material and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Nov 4, 1997·12 cites·8 claims
- 1654US2024404827A1Method for improving dopant activation rate and structure created by means of said methodKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2022·Application pending·0 cites
- 1753US2025188643A1Method for suppressing formation of stacking fault, structure produced by this method, and method for evaluating affected layerKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2022·Application pending·0 cites
- 1852US2024405076A1Method for achieving uniform carrier concentration in epitaxial layer, and structure created by means of said methodKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2022·Application pending·0 cites
- 1952US2025051962A1Method for reducing stacking faults in silicon carbide, and structure created by means of said methodKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2022·Application pending·0 cites
- 2052US2022316089A1Method for producing semiconductor substrates and device for producing semiconductor substratesKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2020·Application pending·0 cites
- 2151US2024241064A1Method for evaluating work-modified layer, and method of manufacturing semiconductor single crystal substrateKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2022·Application pending·0 cites
- 2246US5886077ARare-earth-iron-nitrogen based magnetic material and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Mar 23, 1999·9 cites·21 claims
- 2345US5213703AAnisotropic neodymium-iron-boron system plastic bonded magnetMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted May 25, 1993·9 cites·3 claims
- 2444US10048142B2Evaluation method for bulk silicon carbide single crystals and reference silicon carbide single crystal used in said methodNIPPON STEEL & SUMIKIN MAT CO·Filed 2014·Granted Aug 14, 2018·0 cites·19 claims
- 2535US10526722B2Method for manufacturing silicon carbide single crystalSHOWA DENKO KK·Filed 2016·Granted Jan 7, 2020·0 cites·3 claims
- 2634US4443276AMn--Al--C Alloys for anisotropic permanent magnetsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1982·Granted Apr 17, 1984·3 cites·4 claims
- 2733US5776263AMethod for producing alloy powder of the R2T17 system, a method for producing magnetic powder of the of the R2T17NX system, and a high pressure heat-treatment apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jul 7, 1998·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →