KH

Kiyokazu Hagiwara

Sumitomo Electric Industries: 4 patents #6,367 of 21,551Top 30%
Overall (All Time): #1,269,383 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6577347 Television receiver and additional information transmitting method Toshiro Nishio, Kiyoshi Imai, Akira Usui 2003-06-10
6335763 Television receiver and additional information transmitting method Toshiro Nishio, Kiyoshi Imai, Akira Usui 2002-01-01
5007709 Diffraction grating and manufacturing method thereof Masanori Iida, Hiroyuki Asakura, Minoru Nishioka, Koichi Murase 1991-04-16
4913525 Frequency stabilized light source Hiroshi Asakura, Minoru Nishioka 1990-04-03