Patents by Inventor Kazuo Nakada

Kazuo Nakada 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).

  • Long period floating airship
    Patent number: 5348254
    Abstract: An airship of semirigid type including hydrogen which floats for a long period of time without supplying energy, and is for example in use for a relay station or a wide range observatory station. The airship is powered by a solar cell battery in the daytime and by a hydrogen engine in the nighttime.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: September 20, 1994
    Inventor: Kazuo Nakada
  • Computer pointing device
    Patent number: D350344
    Type: Grant
    Filed: April 13, 1993
    Date of Patent: September 6, 1994
    Assignee: International Business Machines Corporation
    Inventor: Kazuo Nakada
  • Combined point of sale terminal
    Patent number: D361082
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: August 8, 1995
    Assignee: International Business Machines Corporation
    Inventors: Ronald A. Smith, Toshitaka Imai, Kazuo Nakada
  • Personal computer
    Patent number: D362237
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: September 12, 1995
    Assignee: International Business Machines Corporation
    Inventor: Kazuo Nakada
  • Personal computer
    Patent number: D362428
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: September 19, 1995
    Assignee: International Business Machines Corporation
    Inventor: Kazuo Nakada
  • Multi-media portable computer
    Patent number: D363471
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: October 24, 1995
    Assignee: International Business Machines Corporation
    Inventors: Hisashi Shima, Kazuo Nakada, Kazuhiko Yamazaki, Richard Sapper