Patents by Inventor Nobuhisa Kawamura

Nobuhisa Kawamura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Interactive graphic system
    Patent number: 4435772
    Abstract: An interactive graphic system is provided which introduces drawing data step by step in the form of interaction to describe figures, characters, numerical figures or the like with the aid of a microcomputer. The interactive graphic system consists of a keyboard for introducing drawing data, a plotter for recording the figures, a microcomputer, and a memory unit that are constructed as a unitary structure which features small size, reduced cost and enhanced operational performance. Further, the interactive graphic system is so constructed that application software packages can be freely exchanged to diversify the functions.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: March 6, 1984
    Assignee: Yokogawa Hokushin Electric Corp.
    Inventors: Yoshihiro Suzuki, Shuichi Nakagawa, Nobuhisa Kawamura, Shuichi Kurihara, Osamu Sakuma, Masahiro Ito