Inventor
KATAOKA YOSHIYUKI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “KATAOKA YOSHIYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
14 patentsUS5272737ADec 21, 1993
Nuclear reactor installation
HITACHI LTD34 citations91
US5211906AMay 18, 1993
Reactor containment vessel
HITACHI LTD25 citations91
US5096659AMar 17, 1992
Reactor containment vessel
HITACHI LTD34 citations91
US5566709AOct 22, 1996
Fluid plant and its operating method
HITACHI LTD47 citations90
US5295169AMar 15, 1994
Reactor containment facilities
HITACHI LTD25 citations90
US5271044ADec 14, 1993
Boiling water nuclear reactor and start-up process thereof
HITACHI LTD21 citations90
US6278757B1Aug 21, 2001
Fuel assembly and nuclear reactor
HITACHI LTD15 citations82
US4877574AOct 31, 1989
Method of and apparatus for controlling power of natural circulation reactor
HITACHI LTD19 citations81
US5021212AJun 4, 1991
Primary containment vessel with outer pool
HITACHI LTD13 citations73
US5491730AFeb 13, 1996
Cooling system for primary containment vessel in nuclear power plant and component for use in said cooling system
HITACHI LTD17 citations72
US4859401AAug 22, 1989
Nuclear reactor
HITACHI LTD17 citations69
US7215729B1May 8, 2007
Fuel assembly and nuclear reactor
HITACHI LTD2 citations61
US5053188AOct 1, 1991
Reactor system
HITACHI LTD5 citations60
US4992231AFeb 12, 1991
Emergency core cooling system
HITACHI LTD0 citations51
RIGAKU DENKI CO LTD
12 patentsUS10948436B2Mar 16, 2021
Wavelength dispersive X-ray fluorescence spectrometer
RIGAKU DENKI CO LTD3 citations73
US10768125B2Sep 8, 2020
Wavelength dispersive x-ray fluorescence spectrometer and x-ray fluorescence analyzing method using the same
RIGAKU DENKI CO LTD3 citations73
US10161889B2Dec 25, 2018
X-ray fluorescence spectrometer
RIGAKU DENKI CO LTD3 citations72
US10082475B2Sep 25, 2018
X-ray fluorescence spectrometer
RIGAKU DENKI CO LTD5 citations72
US11782000B2Oct 10, 2023
Quantitative analysis method, quantitative analysis program, and X-ray fluorescence spectrometer
RIGAKU DENKI CO LTD3 citations66
US7949093B2May 24, 2011
X-ray fluorescence spectrometer
RIGAKU DENKI CO LTD4 citations61
US10921267B2Feb 16, 2021
X-ray fluorescence analysis method, X-ray fluorescence analysis program, and X-ray fluorescence spectrometer
RIGAKU DENKI CO LTD1 citations56
US11402343B2Aug 2, 2022
X-ray fluorescence spectrometer
RIGAKU DENKI CO LTD0 citations52
US12235229B2Feb 25, 2025
X-ray fluorescence spectrometer
RIGAKU DENKI CO LTD0 citations47
US11832981B2Dec 5, 2023
X-ray fluorescence spectrometer
RIGAKU DENKI CO LTD0 citations47
US11513086B2Nov 29, 2022
X-ray fluorescence spectrometer
RIGAKU DENKI CO LTD0 citations47
US12523624B2Jan 13, 2026
Peak identification analysis program, and X-ray fluorescent spectrometer
RIGAKU DENKI CO LTD0 citations45