HY

Hiroyuki Yasujima

TC Toppan Printing Co.: 1 patents #691 of 1,467Top 50%
Overall (All Time): #4,045,692 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4487826 Diazotype heat development recording medium with hydrophobic salt of alkyl substituted guanidine Niro Watanabe, Shiro Nemoto, Kaneki Yoshida 1984-12-11