HW

Hirohiko Watanabe

SK Showa Denko K.K.: 2 patents #20 of 165Top 15%
SA Showa Aluminum: 1 patents #1 of 7Top 15%
Overall (2002): #62,008 of 266,432Top 25%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6446715 Flat heat exchange tubes Ryouichi Hoshino, Hiroyasu Simanuki, Takashi Tamura 2002-09-10
6370909 Condenser and air conditioning refrigeration system using the same Ryoichi Hoshino, Yasuhiro Takahashi 2002-04-16