Inventor

MATSUZAWA NAOTO

JP3 patents

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

HITACHI LTD

2 patents

US7212830B2May 1, 2007

Position detection method, position detection system, and position detection server equipment

HITACHI LTD20 citations89

US7266098B2Sep 4, 2007

Wireless position measurement method and wireless position measurement system

HITACHI LTD3 citations61

HITACHI AMERICA LTD

1 patent

US5822697AOct 13, 1998

Hybrid cellular radio communication system

HITACHI AMERICA LTD19 citations78