TO

Toko Ohtsubo

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Overall (All Time): #2,296,111 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5335339 Equipment and method for interactive testing and simulating of a specification of a network system Yukihito Maejima, Mitsuyuki Masui, Noriyuki Abe, Katsuhiko Yuura, Kenji Mochizuki 1994-08-02
4969182 Method of telephone call wherein status data inhibits calls and indicates to the caller the reason the called subscriber is unavailable Yoshikatsu Inokuma, Masahiro Kumon, Akihiro Usui 1990-11-06