YO

Yumi Okuyama

AC Asahi Glass Co.: 1 patents #1,233 of 2,251Top 55%
Overall (All Time): #3,457,908 of 4,157,543Top 85%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6939819 Glass ceramic composition Hiroshi Usui, Hitoshi Onoda, Kazunari Watanabe, Yasuko Osaki, Katsuyoshi NAKAYAMA 2005-09-06