RK

Ryohei Kakuta

AC Alps Electric Co.: 3 patents #607 of 2,177Top 30%
Overall (All Time): #1,622,037 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6313891 Liquid crystal display device with light quantity control portion Hideaki Nagakubo, Mitsuaki Yamazaki, Satoshi Matsubara 2001-11-06
6297786 Liquid crystal display apparatus Hideaki Nagakubo, Seiji TOKITA, Yoshifumi Masumoto 2001-10-02
6219117 Liquid crystal display device Hideaki Nagakubo, Mitsuaki Yamazaki, Satoshi Matsubara 2001-04-17