YT

Yoshiji Totsuka

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
📍 Gyōda, JP: #357 of 565 inventorsTop 65%
Overall (All Time): #3,568,472 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6169826 Optical switch Toshikazu Nishiyama, Masahiro Mita, Miki Nakategawa, Kazutaka Sato, Masaya Horino +1 more 2001-01-02