P

Inventor

IKEGAYA MASASHI

5 patents
⚠️ This page may combine multiple inventors who share the name “IKEGAYA MASASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RIKEN KEIKINZOKU KOGYO KK

3 patents
US4184927AJan 22, 1980

Process and apparatus for effecting surface treatment of workpieces

RIKEN KEIKINZOKU KOGYO KK15 citations72
US4144142AMar 13, 1979

Method for producing colored anodic film on aluminum-based material

RIKEN KEIKINZOKU KOGYO KK7 citations70
US3968020AJul 6, 1976

Apparatus for surface treating metal members

RIKEN KEIKINZOKU KOGYO KK19 citations69

RIKEN LIGHT METAL IND CO

1 patent
US3988217AOct 26, 1976

Process for producing a protective film on an aluminum surface

RIKEN LIGHT METAL IND CO8 citations65

RIKEN LIGHT METAL IND COMPANY

1 patent
US3997412ADec 14, 1976

Method of forming oxide film on aluminum or aluminum alloy

RIKEN LIGHT METAL IND COMPANY6 citations58