Inventor
UMEHARA HAJIME
JP15 patents
⚠️ This page may combine multiple inventors who share the name “UMEHARA HAJIME”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
12 patentsUS5663502ASep 2, 1997
Method and apparatus for measuring thickness of layer using acoustic waves
HITACHI LTD116 citations97
US5388132AFeb 7, 1995
Nuclear fuel assembly and core
HITACHI LTD26 citations92
US4678521AJul 7, 1987
Process for producing zirconium-based alloy and the product thereof
HITACHI LTD29 citations91
US4689091AAug 25, 1987
Process for producing zirconium-based alloy
HITACHI LTD21 citations81
US5640435AJun 17, 1997
Fuel assembly and nuclear reactor
HITACHI LTD9 citations73
US5617456AApr 1, 1997
Fuel assembly and nuclear reactor
HITACHI LTD13 citations73
US4842814AJun 27, 1989
Nuclear reactor fuel assembly
HITACHI LTD18 citations73
US5128098AJul 7, 1992
Fuel assembly
HITACHI LTD14 citations72
US4627148ADec 9, 1986
Method of producing high-purity metal member
HITACHI LTD11 citations72
US5265139ANov 23, 1993
Fuel assembly
HITACHI LTD18 citations71
US4985199AJan 15, 1991
Fuel spacer of separate cell type and manufacturing method therefor
HITACHI LTD5 citations57
US4766658AAug 30, 1988
Method of producing composite nuclear fuel cladding
HITACHI LTD0 citations41
MAZDA MOTOR
3 patentsUS11111865B2Sep 7, 2021
Compression ignition engine with supercharger
MAZDA MOTOR2 citations71
US10876465B2Dec 29, 2020
Intake-air temperature controlling device for engine with supercharger
MAZDA MOTOR1 citations60
US11181054B2Nov 23, 2021
Intake-air temperature controlling device for engine
MAZDA MOTOR0 citations47