YM

Yasushi Matsuo

Ngk Spark Plug Co.: 1 patents #6 of 18Top 35%
Overall (1982): #22,502 of 81,411Top 30%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4336216 Process for producing silicon carbide heating elements Masakazu Watanabe, Akiyasu Okuno 1982-06-22