HT

Hajime Toyonaga

OC Osaka Gas Co.: 2 patents #129 of 689Top 20%
Overall (All Time): #2,302,985 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5224855 Gas burner Toshio Nishida, Yasuo Takeishi, Masao Shiomi 1993-07-06
5073106 Gas burner Toshio Nishida, Yasuo Takeishi, Masao Shiomi 1991-12-17