Inventor
OTSUKA RYOTATSU
JP17 patents
⚠️ This page may combine multiple inventors who share the name “OTSUKA RYOTATSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHOWA ALUMINUM CORP
12 patentsUS4804168AFeb 14, 1989
Apparatus for treating molten metal
SHOWA ALUMINUM CORP154 citations98
US4611790ASep 16, 1986
Device for releasing and diffusing bubbles into liquid
SHOWA ALUMINUM CORP147 citations98
US6109510AAug 29, 2000
Brazing material for use in a low temperature brazing and method for low temperature brazing
SHOWA ALUMINUM CORP18 citations92
US4556419ADec 3, 1985
Process for treating molten aluminum to remove hydrogen gas and non-metallic inclusions therefrom
SHOWA ALUMINUM CORP130 citations92
US4747906AMay 31, 1988
Process and apparatus for purifying silicon
SHOWA ALUMINUM CORP25 citations91
US6170738B1Jan 9, 2001
Aluminum brazing alloy for cold brazing and method for brazing low-melting aluminum material
SHOWA ALUMINUM CORP7 citations73
US4948102AAug 14, 1990
Method of preparing high-purity metal and rotary cooling member for use in apparatus therefor
SHOWA ALUMINUM CORP7 citations73
US4854968AAug 8, 1989
Method of preparing high-purity metal and rotary cooling member for use in apparatus therefor
SHOWA ALUMINUM CORP7 citations73
US4772319ASep 20, 1988
Process for treating molten aluminum to remove hydrogen gas and non-metallic inclusions therefrom
SHOWA ALUMINUM CORP12 citations73
US5862976AJan 26, 1999
Brazeable aluminum alloy cast material and method of brazing the same
SHOWA ALUMINUM CORP8 citations71
US4469512ASep 4, 1984
Process for producing high-purity aluminum
SHOWA ALUMINUM CORP14 citations71
US5934546AAug 10, 1999
Process for brazing die-cast aluminum material
SHOWA ALUMINUM CORP3 citations62