Inventor
NAGAOKA YOSHIHIRO
JP34 patents
⚠️ This page may combine multiple inventors who share the name “NAGAOKA YOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
16 patentsUS5595473AJan 21, 1997
Centrifugal fluid machine
HITACHI LTD39 citations95
US6568904B1May 27, 2003
Fluidal machine
HITACHI LTD22 citations92
US6197255B1Mar 6, 2001
Chemical analyzing apparatus
HITACHI LTD49 citations92
US6500388B1Dec 31, 2002
Automatically analyzing apparatus
HITACHI LTD19 citations84
US6371724B2Apr 16, 2002
Centrifugal fluid machine
HITACHI LTD13 citations81
US5971705AOct 26, 1999
Centrifugal fluid machine
HITACHI LTD11 citations81
US5857834AJan 12, 1999
Centrifugal fluid machine
HITACHI LTD11 citations81
US6364607B2Apr 2, 2002
Centrifugal fluid machine
HITACHI LTD6 citations73
US6312222B1Nov 6, 2001
Centrifugal fluid machine
HITACHI LTD5 citations73
US6290460B1Sep 18, 2001
Centrifugal fluid machine
HITACHI LTD7 citations73
US6139266AOct 31, 2000
Centrifugal fluid machine
HITACHI LTD6 citations73
US6162015ADec 19, 2000
Centrifugal type fluid machine
HITACHI LTD15 citations69
US6749397B2Jun 15, 2004
Fluidal machine
HITACHI LTD4 citations62
US7273702B2Sep 25, 2007
Apparatus for purifying nucleic acid and method of purifying nucleic acid
HITACHI LTD1 citations51
US9797870B2Oct 24, 2017
Liquid delivery device and chemical analysis apparatus using liquid delivery device
HITACHI LTD0 citations40
US10416184B2Sep 17, 2019
Pretreatment device for sample for analysis, and analysis system using same
HITACHI LTD0 citations39
HITACHI HIGH TECH CORP
13 patentsUS7727472B2Jun 1, 2010
Chemical analysis apparatus and chemical analysis cartridge
HITACHI HIGH TECH CORP22 citations90
US7937990B2May 10, 2011
Liquid chromatograph and separation column
HITACHI HIGH TECH CORP11 citations84
US7901573B2Mar 8, 2011
Separation column and liquid chromatography apparatus using the same
HITACHI HIGH TECH CORP7 citations84
US7678576B2Mar 16, 2010
Chemical analysis apparatus and chemical analysis cartridge
HITACHI HIGH TECH CORP9 citations83
US10364900B2Jul 30, 2019
Fluid switching valve and liquid chromatograph apparatus using the same
HITACHI HIGH TECH CORP7 citations82
US7662340B2Feb 16, 2010
Extractor chemical analyzer and chemical analyzing method
HITACHI HIGH TECH CORP8 citations82
US7384602B2Jun 10, 2008
Chemical analysis apparatus and genetic diagnostic apparatus
HITACHI HIGH TECH CORP18 citations82
US12158452B2Dec 3, 2024
Flow passage switching valve and liquid chromatograph having the same
HITACHI HIGH TECH CORP0 citations59
US7811451B2Oct 12, 2010
Separation column and liquid chromatograph using the same
HITACHI HIGH TECH CORP1 citations52
US11426721B2Aug 30, 2022
Bubble eliminating structure, bubble eliminating method, and agitating method using the same
HITACHI HIGH TECH CORP0 citations51
US10702199B2Jul 7, 2020
Blood collecting device
HITACHI HIGH TECH CORP0 citations51
US12515218B2Jan 6, 2026
Sample processing device and apparatus
HITACHI HIGH TECH CORP0 citations50
US9492821B2Nov 15, 2016
Liquid feeder and chemical analyzer including same
HITACHI HIGH TECH CORP0 citations40