TU

Takashi Udagawa

SK Showa Denko K.K.: 3 patents #8 of 165Top 5%
SD Showa Denko: 1 patents #13 of 61Top 25%
📍 Chichibu, JP: #2 of 13 inventorsTop 20%
Overall (2002): #11,677 of 266,432Top 5%
4
Patents 2002

Issued Patents 2002

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6462361 GaInP epitaxial stacking structure and fabrication method thereof, and a FET transistor using this structure Masahiro Kimura, Akira Kasahara, Taichi Okano 2002-10-08
6403987 Electrode for light-emitting semiconductor devices Hisayuki Miki, Noritaka Muraki, Mineo Okuyama 2002-06-11
6346719 AlGaInP light-emitting diode Toshiki Yoshiuji, Ryouichi Takeuchi 2002-02-12
6335219 Nitride semiconductor light-emitting device and manufacturing method of the same 2002-01-01