Inventor
UEDA IWAO
11 patents
⚠️ This page may combine multiple inventors who share the name “UEDA IWAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UEDA IWAO
5 patentsUS4680111AJul 14, 1987
Sewage treatment equipment with activated sludge process beds
UEDA IWAO71 citations94
US5240597AAug 31, 1993
Waste water treatment equipment
UEDA IWAO29 citations91
US5277798AJan 11, 1994
Sewage treatment equipment with activated sludge process bed
UEDA IWAO9 citations72
US4927530AMay 22, 1990
Apparatus for processing sludge
UEDA IWAO18 citations72
US4678567AJul 7, 1987
Activated sludge process bed
UEDA IWAO18 citations72
HAMANA IRON WORKS CO
4 patentsUS4735071AApr 5, 1988
Apparatus for continuously producing tube having helical grooves in its inner surface
HAMANA IRON WORKS CO10 citations71
US4446688AMay 8, 1984
Double twisting machine
HAMANA IRON WORKS CO6 citations71
US4766751AAug 30, 1988
Apparatus for continuously producing tube having helical grooves in its inner surface
HAMANA IRON WORKS CO10 citations65
US4090742AMay 23, 1978
Bearing device
HAMANA IRON WORKS CO3 citations60