Inventor
MOROZUMI NAOYA
JP33 patents
⚠️ This page may combine multiple inventors who share the name “MOROZUMI NAOYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU GENERAL LTD
25 patentsUS6389837B1May 21, 2002
Scroll compressor
FUJITSU GENERAL LTD40 citations92
US7393191B2Jul 1, 2008
Internal refrigerant gas circulation apparatus for a closed-type scroll compressor
FUJITSU GENERAL LTD9 citations84
US7780427B2Aug 24, 2010
Two-stage rotary compressor
FUJITSU GENERAL LTD9 citations83
US7641454B2Jan 5, 2010
Two-stage rotary compressor
FUJITSU GENERAL LTD12 citations83
US7331774B2Feb 19, 2008
Back pressure control mechanism of orbiting scroll in scroll compressor
FUJITSU GENERAL LTD9 citations83
US7044723B2May 16, 2006
Scroll compressor having a throttle pin moving in the longitudinal hole of the oil supply passage
FUJITSU GENERAL LTD12 citations79
US7748968B2Jul 6, 2010
Two-cylinder rotary compressor with suction pipes
FUJITSU GENERAL LTD7 citations74
US6561776B2May 13, 2003
Scroll compressor
FUJITSU GENERAL LTD8 citations74
US11060522B2Jul 13, 2021
Rotary compressor having reduced pressure loss of refrigerant flow
FUJITSU GENERAL LTD2 citations73
US10458408B2Oct 29, 2019
Rotary compressor having communication path hole overlap with discharge chamber concave portion
FUJITSU GENERAL LTD3 citations72
US10550843B2Feb 4, 2020
Rotary compressor
FUJITSU GENERAL LTD5 citations71
US10436199B2Oct 8, 2019
Rotary compressor
FUJITSU GENERAL LTD3 citations71
US9951775B2Apr 24, 2018
Rotary compressor
FUJITSU GENERAL LTD3 citations71
US9951774B2Apr 24, 2018
Lubrication of a rotary compressor
FUJITSU GENERAL LTD2 citations71
US6872062B2Mar 29, 2005
Scroll compressor
FUJITSU GENERAL LTD2 citations63
US11460029B2Oct 4, 2022
Compressor
FUJITSU GENERAL LTD1 citations62
US9157437B2Oct 13, 2015
Rotary compressor with oiling mechanism
FUJITSU GENERAL LTD3 citations60
US10590933B2Mar 17, 2020
Rotary compressor
FUJITSU GENERAL LTD1 citations57
US8029255B2Oct 4, 2011
Lubricating oil circulating device for compressor
FUJITSU GENERAL LTD1 citations51
US12492848B2Dec 9, 2025
Hermetic type compressor
FUJITSU GENERAL LTD0 citations50
US11927189B2Mar 12, 2024
Hermetic compressor
FUJITSU GENERAL LTD0 citations50
US11408425B2Aug 9, 2022
Rotary compressor
FUJITSU GENERAL LTD0 citations49
US10408213B2Sep 10, 2019
Rotary compressor
FUJITSU GENERAL LTD0 citations42
US10495091B2Dec 3, 2019
Rotary compressor having an injection connecting pipe that extends to an upper portion of a compressor housing and that is linked to an injection pipe via an injection pipe taking-out portion
FUJITSU GENERAL LTD0 citations41
US10738779B2Aug 11, 2020
Rotary compressor
FUJITSU GENERAL LTD0 citations40
TOSHIBA KK
6 patentsUS5171141ADec 15, 1992
Scroll compressor with distal ends of the wraps having sliding contact on curved portions
TOSHIBA KK33 citations90
US5152682AOct 6, 1992
Scroll type fluid machine with passageway for innermost working chamber
TOSHIBA KK53 citations90
US4875839AOct 24, 1989
Scroll member for use in a positive displacement device, and a method for manufacturing the same
TOSHIBA KK34 citations90
US5062778ANov 5, 1991
Helical blade type compressor with thrust loss compensation
TOSHIBA KK10 citations73
US5026264AJun 25, 1991
Fluid compressor
TOSHIBA KK14 citations73
US5350280ASep 27, 1994
Fluid compressor
TOSHIBA KK1 citations51