IT

Ichirou Takeuchi

HC Hitachi Software Engineering Co.: 2 patents #91 of 502Top 20%
Overall (All Time): #2,188,182 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6700129 Electronic board system and coordinates-inputting pen Yutaka Usuda, Yoshikazu Shinkai, Yuji Tsukamoto, Jun Namiki 2004-03-02
6437314 Coordinate input pen, and electronic board, coordinate input system and electronic board system using the coordinate input pen Yutaka Usuda, Sueo Amemiya, Jun Namiki, Naoki Miyauchi 2002-08-20