Inventor · disambiguated record
Ryutaro Yamagata
Also filed as: YAMAGATA RYUTARO
17 granted patents·8 pending applications·107 citations·filing 1979–2024
92Inventor score
Top patents by PatentIndex Score
25 records- 0193US11634787B2Grain-oriented electrical steel sheet, annealing separator, and method for manufacturing grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Apr 25, 2023·2 cites·17 claims
- 0290US2025051891A1Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and annealing separator utilized for manufacture of grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2024·Application pending·0 cites
- 0386US12104219B2Grain-oriented electrical steel sheet and method for manufacturing same and annealing separatorNIPPON STEEL CORP·Filed 2023·Granted Oct 1, 2024·0 cites·2 claims
- 0486US2025043381A1Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and annealing separator utilized for manufacture of grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2024·Application pending·0 cites
- 0585US2025019788A1Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and annealing separator utilized for manufacture of grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2024·Application pending·0 cites
- 0683US4387889ACopying apparatus provided with a cassette-type paper feeding mechanismMITA INDUSTRIAL CO LTD·Filed 1981·Granted Jun 14, 1983·27 cites·5 claims
- 0779US12454735B2Grain-oriented electrical steel sheet, finish annealing-use steel sheet, annealing separator, method for manufacturing grain-oriented electrical steel sheet, and method for manufacturing finish annealing-use steel sheetNIPPON STEEL CORP·Filed 2022·Granted Oct 28, 2025·0 cites·2 claims
- 0873US11591668B2Grain-oriented electrical steel sheet and method for manufacturing same and annealing separatorNIPPON STEEL CORP·Filed 2020·Granted Feb 28, 2023·0 cites·9 claims
- 0973US4400077APhotosensitive drum for electrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1981·Granted Aug 23, 1983·17 cites·5 claims
- 1072US12157936B2Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and annealing separator utilized for manufacture of grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Dec 3, 2024·0 cites·4 claims
- 1171US4468111ADeveloping device for use on an electrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1982·Granted Aug 28, 1984·17 cites·8 claims
- 1270US12134802B2Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and annealing separator utilized for manufacture of grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Nov 5, 2024·0 cites·5 claims
- 1370US4444494ACopying apparatus equipped with an original-support device, and an original-holding mechanism thereforMITA INDUSTRIAL CO LTD·Filed 1983·Granted Apr 24, 1984·8 cites·5 claims
- 1469US12152286B2Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and annealing separator utilized for manufacture of grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Nov 26, 2024·0 cites·5 claims
- 1568US4410259AApparatus for developing latent electrostatic imageMITA INDUSTRIAL CO LTD·Filed 1981·Granted Oct 18, 1983·15 cites·36 claims
- 1665US4436412ACleaning device for use on an electrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1981·Granted Mar 13, 1984·14 cites·8 claims
- 1763US2025118468A1Grain-oriented electrical steel sheet and method for manufacturing sameNIPPON STEEL CORP·Filed 2023·Application pending·0 cites
- 1860US11948711B2Grain oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Apr 2, 2024·0 cites·8 claims
- 1959US2025270667A1Grain-oriented electrical steel sheet and method for producing grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2023·Application pending·0 cites
- 2058US12091722B2Method for manufacturing grain-oriented electrical steel sheet and grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Sep 17, 2024·0 cites·3 claims
- 2157US2023243010A1Production method for grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2021·Application pending·0 cites
- 2254US2022081743A1Grain-oriented electrical steel sheet, finish annealing-use steel sheet, annealing separator, method for manufacturing grain-oriented electrical steel sheet, and method for manufacturing finish annealing-use steel sheetNIPPON STEEL CORP·Filed 2020·Application pending·0 cites
- 2354US2023243013A1Method for producing grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2021·Application pending·0 cites
- 2439US4259008AElectrostatic copying apparatusMITA INDUSTRIAL CO LTD·Filed 1979·Granted Mar 31, 1981·4 cites·33 claims
- 2531US4452530ACopying apparatus equipped with an original-support device, and an original-holding mechanism thereforMITA INDUSTRIAL CO LTD·Filed 1981·Granted Jun 5, 1984·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →