Inventor
MORINAKA REN
JP16 patents
⚠️ This page may combine multiple inventors who share the name “MORINAKA REN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
13 patentsUS5977515ANov 2, 1999
Underwater laser processing device including chamber with partitioning wall
HITACHI LTD126 citations96
US5897062AApr 27, 1999
Fluid jet nozzle and stress improving treatment method using the nozzle
HITACHI LTD58 citations95
US6519991B2Feb 18, 2003
Water jet peening apparatus
HITACHI LTD16 citations92
US6425276B1Jul 30, 2002
Water jet peening apparatus
HITACHI LTD28 citations92
US6341151B1Jan 22, 2002
Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel
HITACHI LTD29 citations92
US5519741AMay 21, 1996
System for inspection and mending in a reactor vessel of a nuclear reactor
HITACHI LTD22 citations92
US6058153AMay 2, 2000
Preventive maintenance apparatus for structural members in a nuclear pressure vessel
HITACHI LTD23 citations91
US5553106ASep 3, 1996
Residual stress improving method for members in reactor pressure vessel
HITACHI LTD21 citations90
US5749384AMay 12, 1998
Method and apparatus for performing preventive maintenance on the bottom portion of a reactor pressure vessel using cavitation bubbles
HITACHI LTD18 citations82
US6639962B2Oct 28, 2003
Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel
HITACHI LTD8 citations73
US6345083B1Feb 5, 2002
Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel
HITACHI LTD7 citations73
US6240155B1May 29, 2001
Preventive maintenance apparatus for structural members in a nuclear pressure vessel
HITACHI LTD14 citations72
US5793203AAug 11, 1998
Measurement system with noise reduction circuit
HITACHI LTD2 citations62
HITACHI GE NUCLEAR ENERGY LTD
3 patentsUS7716961B2May 18, 2010
Method for executing water jet peening
HITACHI GE NUCLEAR ENERGY LTD14 citations77
US9067303B2Jun 30, 2015
Method of executing shot peening
HITACHI GE NUCLEAR ENERGY LTD0 citations50
US10286501B2May 14, 2019
Laser welding apparatus, preventive maintenance method for reactor internal of nuclear power plant, and laser cutting apparatus
HITACHI GE NUCLEAR ENERGY LTD0 citations34