HS

Hiroyoshi Serizawa

DK Denki Kagaku Kogyo: 1 patents #291 of 655Top 45%
Overall (All Time): #3,629,167 of 4,157,543Top 90%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6126875 Process for producing a concrete product Yoshiharu Watanabe, Hirotoshi Hagiwara, Tetsuo Shibata, Takashi Shimamura, Masaru Murase 2000-10-03