Inventor

TOMIYASU KEN

JP3 patents

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

SUMITOMO METAL IND

1 patent

US6009913AJan 4, 2000

Lubricant surface-treated steel pipe for hydroforming use

SUMITOMO METAL IND18 citations85

HONDA MOTOR CO LTD

1 patent

US7757479B2Jul 20, 2010

Secondary air supply system for an exhaust port of an engine

HONDA MOTOR CO LTD3 citations57

NIPPON STEEL CORP

1 patent

US12104085B2Oct 1, 2024

Oil-well metal pipe, and method for producing oil-well metal pipe

NIPPON STEEL CORP0 citations54