Inventor · disambiguated record
Masamitsu Nagahama
Also filed as: NAGAHAMA MASAMITSU
17 granted patents·3 pending applications·77 citations·filing 1984–2025
90Inventor score
Top patents by PatentIndex Score
20 records- 0181US10518510B2Decorative sheet and method of manufacturing the sameTOPPAN PRINTING CO LTD·Filed 2018·Granted Dec 31, 2019·1 cites·9 claims
- 0281US5217313AWriting instrumentPENTEL KK·Filed 1990·Granted Jun 8, 1993·41 cites·4 claims
- 0374US12263660B2Decorative sheetTOPPAN INC·Filed 2022·Granted Apr 1, 2025·0 cites·6 claims
- 0470US2025242563A1Decorative sheetTOPPAN INC·Filed 2025·Application pending·0 cites
- 0569US10026341B2Label, wristband clip, paper material and ink ribbon containing carbon dioxide absorbent liposomeSATO HOLDINGS KK·Filed 2016·Granted Jul 17, 2018·1 cites·13 claims
- 0661US10899117B2Decorative sheet and method of producing decorative sheetTOPPAN PRINTING CO LTD·Filed 2019·Granted Jan 26, 2021·0 cites·18 claims
- 0758US4824271ANib for writing instrumentsPENTAL KABUSHIKI KAISHA·Filed 1984·Granted Apr 25, 1989·18 cites·3 claims
- 0855US9489872B2Label, printing paper top layer formation material, information-bearing medium, wristband clip, and carbon dioxide reduction method using sameYAMAMURO HIROMI·Filed 2011·Granted Nov 8, 2016·1 cites·32 claims
- 0952US11446906B2Decorative sheetsTOPPAN PRINTING CO LTD·Filed 2021·Granted Sep 20, 2022·0 cites·15 claims
- 1050US10703079B2Decorative sheet and method of producing the sameTOPPAN PRINTING CO LTD·Filed 2018·Granted Jul 7, 2020·0 cites·9 claims
- 1150US10661538B2Decorative sheetTOPPAN PRINTING CO LTD·Filed 2016·Granted May 26, 2020·0 cites·2 claims
- 1249US10981364B2Decorated sheetTOPPAN PRINTING CO LTD·Filed 2015·Granted Apr 20, 2021·0 cites·12 claims
- 1347US11230631B2Decorative sheet, and transparent resin sheetTOPPAN PRINTING CO LTD·Filed 2016·Granted Jan 25, 2022·0 cites·4 claims
- 1446US11148403B2Decorative sheetTOPPAN PRINTING CO LTD·Filed 2018·Granted Oct 19, 2021·0 cites·20 claims
- 1546US10906280B2Decorative sheetTOPPAN PRINTING CO LTD·Filed 2016·Granted Feb 2, 2021·0 cites·1 claims
- 1644US5352051AWriting instrumentPENTEL KK·Filed 1992·Granted Oct 4, 1994·9 cites·9 claims
- 1743US2012184656A1Resin composition for carbon dioxide emission reduction, method for producing the same, and use thereofNAGAHAMA MASAMITSU·Filed 2010·Application pending·0 cites
- 1841US2016009880A1Stretch filmSATO HOLDINGS KK·Filed 2015·Application pending·0 cites
- 1932US4708508AInk guide for writing instrumentsPENTEL KK·Filed 1985·Granted Nov 24, 1987·3 cites·5 claims
- 2025US5085534AMechanical pencil lead protection pipe with protuberancePENTEL KK·Filed 1990·Granted Feb 4, 1992·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →