Inventor
KITA HISANAO
11 patents
⚠️ This page may combine multiple inventors who share the name “KITA HISANAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
10 patentsUS3975612AAug 17, 1976
Welding method for dissimilar metals
HITACHI LTD51 citations89
US4543711AOct 1, 1985
System for automatically inserting U-tubes of heat exchanger or the like
HITACHI LTD37 citations86
US4794688AJan 3, 1989
Method of connecting superconducting wires
HITACHI LTD22 citations80
US4271348AJun 2, 1981
Electron beam welding method and apparatus therefor
HITACHI LTD10 citations72
US3999031ADec 21, 1976
Method for electron-beam welding of dissimilar metals
HITACHI LTD19 citations72
US3999030ADec 21, 1976
Welding method for dissimilar metals
HITACHI LTD14 citations72
US4327273AApr 27, 1982
Method of treating a workpiece with electron beams and apparatus therefor
HITACHI LTD9 citations71
US4208564AJun 17, 1980
Nozzle structure of electroslag welding machines
HITACHI LTD8 citations68
US4317022AFeb 23, 1982
Electron beam welding machine
HITACHI LTD3 citations60
US4134530AJan 16, 1979
Method for construction of water intake portion of hydraulic machine
HITACHI LTD2 citations56