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Hirosi Usui

AC Asahi Glass Co.: 2 patents #833 of 2,251Top 40%
Overall (All Time): #2,244,757 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6163106 Color cathode ray tube and water resistant glass frit Tsunehiko Sugawara, Yuichi Kuroki, Ryuichi Tanabe, Tsuneo Manabe 2000-12-19
5236495 Calcium phosphate type glass-ceramic Tsuneo Manabe, Yasuko Osaki 1993-08-17