RT

Ryouichi Takeuchi

SD Showa Denko: 1 patents #13 of 61Top 25%
📍 Chichibu, JP: #6 of 13 inventorsTop 50%
Overall (2002): #123,587 of 266,432Top 50%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6346719 AlGaInP light-emitting diode Takashi Udagawa, Toshiki Yoshiuji 2002-02-12