HS

Hiroyuki Sumitomo

HW Hisaka Works: 2 patents #1 of 6Top 20%
Overall (1982): #12,887 of 81,411Top 20%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4347897 Plate type heat exchanger Haruo Uehara 1982-09-07
4314605 Condenser Masafumi Doi, Kazuyuki Kobayashi, Katsutoshi Fukami, Kenzo Kawanishi 1982-02-09