KM

Katsushi Mizutani

RI Rinnai: 2 patents #53 of 173Top 35%
Overall (All Time): #2,350,646 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4627416 Water heater Hiroshi Ito, Kanae Aida, Masanobu Shinozaki, Masahiko Koumura, Kazumi Tamada 1986-12-09
4505253 Water heater Sueo Mizuno, Masahiko Koumura 1985-03-19