Inventor
TAMAI YASUMASA
JP10 patents
Patents
10 patentsUS5977515ANov 2, 1999
Underwater laser processing device including chamber with partitioning wall
HITACHI LTD126 citations96
US5938954AAug 17, 1999
Submerged laser beam irradiation equipment
HITACHI LTD100 citations96
US5305361AApr 19, 1994
Method of and apparatus for water-jet peening
HITACHI LTD44 citations90
US4440339AApr 3, 1984
Method of repairing housing of control rod driving system
HITACHI LTD39 citations90
US5674419AOct 7, 1997
Method for weld repairing of structures in nuclear reactors
HITACHI LTD21 citations89
US4247037AJan 27, 1981
Method for welding tubular members of stainless steel
HITACHI LTD22 citations81
US5022936AJun 11, 1991
Method for improving property of weld of austenitic stainless steel
HITACHI LTD19 citations80
US5494539AFeb 27, 1996
Metal member quality improving method by spot welding
HITACHI LTD16 citations71
US4262517AApr 21, 1981
Method of correcting distorted pipe end
HITACHI LTD5 citations61
US4601872AJul 22, 1986
Water sealing device for use in replacing control rod drive housing
HITACHI LTD4 citations54