IT

Ikuo Tsunekawa

RI Rinnai: 2 patents #53 of 173Top 35%
Overall (All Time): #2,077,752 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8528538 Warm air furnace Keiichi Ito 2013-09-10
7806345 In-wall heater Minoru Oguri, Satoshi Kaneiwa, Brian Smith, Gregory Brinsden 2010-10-05