RO

Ryoichi Onoue

OC Osaka Gas Co.: 1 patents #252 of 689Top 40%
Overall (All Time): #3,441,360 of 4,157,543Top 85%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6855398 Sound absorbing and heat insulating material, and method of manufacturing same Fumikazu Machino, Tsuyoshi Higo, Toshinobu Kataoka, Toshio Date, Tominori Sato 2005-02-15