Inventor · disambiguated record
Masaru Ohtahara
Also filed as: OHTAHARA MASARU
8 granted patents·4 pending applications·36 citations·filing 2003–2017
82Inventor score
Files withHITACHI APPLIANCES INC6HITACHI JOHNSON CONTROLS AIR CONDITIONING INC2JOHNSON CONTROLS-HITACHI AIR CONDITIONING TECH (HONG KONG) LTD2HITACHI LTD1
Top patents by PatentIndex Score
12 records- 0188US9181945B2Scroll compressor with channels intermittently communicating internal and external compression chambers with back pressure chamberHITACHI APPLIANCES INC·Filed 2013·Granted Nov 10, 2015·9 cites·6 claims
- 0277US10584744B2Refrigerant compressor with supporting bearing insulationHITACHI JOHNSON CONTROLS AIR CONDITIONING INC·Filed 2017·Granted Mar 10, 2020·2 cites·5 claims
- 0376US7758326B2Scroll fluid machineHITACHI APPLIANCES INC·Filed 2007·Granted Jul 20, 2010·6 cites·7 claims
- 0476US7163386B2Scroll compressor having a movable auxiliary portion with contact plane of a stopper portion to contact a pane of the fixed scroll through elastic pressure of high pressure fluidHITACHI APPLIANCES INC·Filed 2005·Granted Jan 16, 2007·6 cites·6 claims
- 0572US7021912B2Scroll fluid machineHITACHI LTD·Filed 2003·Granted Apr 4, 2006·13 cites·14 claims
- 0650US10190586B2Scroll compressor and air conditionerHITACHI JOHNSON CONTROLS AIR CONDITIONING INC·Filed 2013·Granted Jan 29, 2019·0 cites·17 claims
- 0746US7902713B2Self-starting type permanent magnet synchronous motor and a compressor using the sameHITACHI APPLIANCES INC·Filed 2008·Granted Mar 8, 2011·0 cites·11 claims
- 0846US2008304994A1Scroll Fluid MachineHITACHI APPLIANCES INC·Filed 2008·Application pending·0 cites
- 0940US9500196B2Scroll compressor with intermittent communication between back pressure chamber and compression chambersJOHNSON CONTROLS-HITACHI AIR CONDITIONING TECH (HONG KONG) LTD·Filed 2014·Granted Nov 22, 2016·0 cites·5 claims
- 1039US2016003247A1Scroll CompressorHITACHI APPLIANCES INC·Filed 2013·Application pending·0 cites
- 1137US2005180871A1Fluid compressorFiled 2004·Application pending·0 cites
- 1234US2017306951A1Scroll compressor and refrigeration cycle apparatus using the sameJOHNSON CONTROLS-HITACHI AIR CONDITIONING TECH (HONG KONG) LTD·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →