Inventor

KUMAGAI SHIGEKI

3 patents

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

ISHIGAMI TADATOMI

1 patent

US8548723B2Oct 1, 2013

Car navigation system

ISHIGAMI TADATOMI2 citations57

JFE STEEL CORP

1 patent

US12339121B2Jun 24, 2025

Heavy goods vehicle

JFE STEEL CORP0 citations43

TOKYO SHIBAURA ELECTRIC CO

1 patent

US4086473AApr 25, 1978

Display device for electronic apparatus

TOKYO SHIBAURA ELECTRIC CO0 citations31