TK

Toshifumi Kondoh

Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #1,605,528 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6771024 Fluorescent lamp Masatoshi Sudou, Toshiyoshi Oga, Masaru Saitoh 2004-08-03
6528444 Glass composition, stem and bulb for lamps Yutaka Koyamada, Katsuaki Iwama 2003-03-04
6229257 Fluorescent lamp sealed with glass bead Yutaka Koyamada, Hisatoshi Uchiyama 2001-05-08