Inventor

NIWA TSUTOMU

2 patents

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

ARUZE CORP

1 patent

US6790140B1Sep 14, 2004

Game machine

ARUZE CORP36 citations86

NIPPON DENSO CO

1 patent

US4042955AAug 16, 1977

Resin-sealed electrical device

NIPPON DENSO CO22 citations76