Inventor · disambiguated record
Koichi Maegawa
Also filed as: MAEGAWA KOICHI
11 granted patents·2 pending applications·4 citations·filing 2013–2025
80Inventor score
Files withSUMCO CORP13
Top patents by PatentIndex Score
13 records- 0181US9553221B2Electromagnetic casting method and apparatus for polycrystalline siliconSUMCO CORP·Filed 2013·Granted Jan 24, 2017·3 cites·3 claims
- 0280US12116691B2Method for producing silicon single crystalSUMCO CORP·Filed 2023·Granted Oct 15, 2024·0 cites·2 claims
- 0378US12252803B2N-type silicon single crystal production method, n-type silicon single crystal ingot, silicon wafer, and epitaxial silicon waferSUMCO CORP·Filed 2023·Granted Mar 18, 2025·0 cites·3 claims
- 0472US2025179682A1N-type silicon single crystal production method, n-type silicon single crystal ingot, silicon wafer, and epitaxial silicon waferSUMCO CORP·Filed 2025·Application pending·0 cites
- 0567US11814745B2Method for producing silicon single crystalSUMCO CORP·Filed 2018·Granted Nov 14, 2023·0 cites·2 claims
- 0667US10916425B2Method for manufacturing silicon single crystal, flow straightening member, and single crystal pulling deviceSUMCO CORP·Filed 2017·Granted Feb 9, 2021·1 cites·8 claims
- 0758US11702760B2N-type silicon single crystal production method, n-type silicon single crystal ingot, silicon wafer, and epitaxial silicon waferSUMCO CORP·Filed 2018·Granted Jul 18, 2023·0 cites·3 claims
- 0858US11639560B2Deposit removing device and deposit removing methodSUMCO CORP·Filed 2020·Granted May 2, 2023·0 cites·6 claims
- 0958US9080814B2Continuous casting method of silicon ingotSUMCO CORP·Filed 2013·Granted Jul 14, 2015·0 cites·1 claims
- 1050US11377755B2N-type silicon single crystal production method, n-type silicon single crystal ingot, silicon wafer, and epitaxial silicon waferSUMCO CORP·Filed 2018·Granted Jul 5, 2022·0 cites·2 claims
- 1149US11242617B2Method for producing silicon single crystalSUMCO CORP·Filed 2017·Granted Feb 8, 2022·0 cites·6 claims
- 1247US11426775B2Cleaning method, method for producing silicon single crystal, and cleaning deviceSUMCO CORP·Filed 2018·Granted Aug 30, 2022·0 cites·11 claims
- 1338US2020135460A1Single crystal silicon production method, epitaxial silicon wafer production method, single crystal silicon, and epitaxial silicon waferSUMCO CORP·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →