Inventor

OYA YASUNORI

JP4 patents

Patents

4 patents

US6300876B1Oct 9, 2001

Fire detector

NITTAN CO LTD31 citations91

USD426482SJun 13, 2000

Fire detector

NITTAN CO LTD25 citations91

USD450008SNov 6, 2001

Fire detector

NITTAN CO LTD16 citations82

US7248173B2Jul 24, 2007

Smoke detector

NITTAN CO LTD17 citations78