IU

Ikuo Utagawa

AC Alps Electric Co.: 4 patents #470 of 2,177Top 25%
📍 Rifu, JP: #689 of 2,101 inventorsTop 35%
Overall (All Time): #1,307,185 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4623766 Pressure-sensitive sheet material Kazuhiko Ito 1986-11-18
4529959 Input device Kazuhiko Ito 1985-07-16
4504700 Input device Yoshizo Kubo 1985-03-12
4503286 Input device Yoshizo Kubo 1985-03-05