Inventor

NIWAKAWA MAKOTO

JP3 patents

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

MEIDENSHA ELECTRIC MFG CO LTD

2 patents

US11975946B2May 7, 2024

Elevator rope monitoring device and elevator rope monitoring method

MEIDENSHA ELECTRIC MFG CO LTD0 citations59

US7795604B2Sep 14, 2010

Device for measuring wear of trolley wire by image processing

MEIDENSHA ELECTRIC MFG CO LTD4 citations57

WATABE YUSUKE

1 patent

US8071967B2Dec 6, 2011

Trolley wire wear measuring device using binary operated images

WATABE YUSUKE4 citations52