Inventor · disambiguated record
Naoyuki Maruyama
Also filed as: MARUYAMA NAOYUKI
19 granted patents·1 pending application·79 citations·filing 1982–2015
93Inventor score
Files withTOKAI RYOKAKU TETSUDO KK9MITSUBISHI ELECTRIC CORP4KIGAWA HIROSHI3KK SUWA SEIKOSHA2EPSON CORP1
Top patents by PatentIndex Score
20 records- 0189US8261886B2Safety device for elevator and rope slip detection methodKIGAWA HIROSHI·Filed 2012·Granted Sep 11, 2012·11 cites·1 claims
- 0282US8297413B2Safety device for elevator and rope slip detection method using drive sheave accelerationKIGAWA HIROSHI·Filed 2007·Granted Oct 30, 2012·11 cites·1 claims
- 0376US8336677B2Safety device for elevator and rope slip detection methodKIGAWA HIROSHI·Filed 2012·Granted Dec 25, 2012·4 cites·1 claims
- 0476USD278714SElectronic printerKK SUWA SEIKOSHA·Filed 1982·Granted May 7, 1985·14 cites·1 claims
- 0575US9511979B2Underslung elevatorMITSUBISHI ELECTRIC CORP·Filed 2013·Granted Dec 6, 2016·5 cites·12 claims
- 0671US10233054B2Elevator car upper handrail apparatusMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Mar 19, 2019·4 cites·19 claims
- 0765USD279292SElectronic printerEPSON CORP·Filed 1983·Granted Jun 18, 1985·9 cites·1 claims
- 0862USD278821SElectronic printerKK SUWA SEIKOSHA·Filed 1982·Granted May 14, 1985·8 cites·1 claims
- 0952US9751538B2Sound absorbing panelTOKAI RYOKAKU TETSUDO KK·Filed 2013·Granted Sep 5, 2017·0 cites·12 claims
- 1052US9617119B2Elevator apparatusMARUYAMA NAOYUKI·Filed 2011·Granted Apr 11, 2017·2 cites·12 claims
- 1147US2013001020A1Safety device for elevator and rope slip detection methodMITSUBISHI ELECTRIC CORP·Filed 2012·Application pending·0 cites
- 1246US10538415B2Ceiling unit and elevator car including ceiling unitMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Jan 21, 2020·0 cites·10 claims
- 1342USD701483SSound absorbing portions of passenger carrying carTOKAI RYOKAKU TETSUDO KK·Filed 2013·Granted Mar 25, 2014·4 cites·1 claims
- 1438USD701817SSound absorbing portions of passenger carrying carTOKAI RYOKAKU TETSUDO KK·Filed 2013·Granted Apr 1, 2014·3 cites·1 claims
- 1535USD701482SSound absorbing portions of passenger carrying carTOKAI RYOKAKU TETSUDO KK·Filed 2013·Granted Mar 25, 2014·2 cites·1 claims
- 1633USD757605SPassenger carrying carTOKAI RYOKAKU TETSUDO KK·Filed 2013·Granted May 31, 2016·1 cites·1 claims
- 1732USD756843SPassenger carrying carTOKAI RYOKAKU TETSUDO KK·Filed 2013·Granted May 24, 2016·1 cites·1 claims
- 1831USD869335SPassenger carrying carTOKAI RYOKAKU TETSUDO KK·Filed 2015·Granted Dec 10, 2019·0 cites·1 claims
- 1931USD860049SPassenger carrying carTOKAI RYOKAKU TETSUDO KK·Filed 2015·Granted Sep 17, 2019·0 cites·1 claims
- 2029USD701818SSound absorbing portions of passenger carrying carTOKAI RYOKAKU TETSUDO KK·Filed 2013·Granted Apr 1, 2014·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →