Patents by Inventor Tsutomu Yamasaki

Tsutomu Yamasaki 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).

  • Electronic hemadynamometer
    Patent number: D253427
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: November 13, 1979
    Assignee: Sharp Corporation
    Inventors: Yoshihisa Ohie, Tsutomu Yamasaki
  • Billing machine
    Patent number: D254617
    Type: Grant
    Filed: February 16, 1978
    Date of Patent: April 1, 1980
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tsutomu Yamasaki
  • Electronic hemadynamometer
    Patent number: D254806
    Type: Grant
    Filed: May 16, 1978
    Date of Patent: April 22, 1980
    Assignee: Sharp Kabushiki Kaisha (Sharp Corp.)
    Inventors: Isao Kitai, Tsutomu Yamasaki
  • Electronic calculating machine
    Patent number: D257045
    Type: Grant
    Filed: December 13, 1978
    Date of Patent: September 23, 1980
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Matafumi Ikeda, Tsutomu Yamasaki
  • Low frequency power supply for medical treatment apparatus
    Patent number: D259737
    Type: Grant
    Filed: August 3, 1978
    Date of Patent: June 30, 1981
    Assignee: Sharp Corporation
    Inventors: Isao Kitai, Tsutomu Yamasaki
  • Electronic calculating machine
    Patent number: D260530
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: September 1, 1981
    Assignee: Sharp Corporation
    Inventor: Tsutomu Yamasaki
  • Filling station terminal
    Patent number: D261772
    Type: Grant
    Filed: June 6, 1980
    Date of Patent: November 10, 1981
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Tsutomu Yamasaki
  • Key board for electronic cash register
    Patent number: D264600
    Type: Grant
    Filed: July 8, 1980
    Date of Patent: May 25, 1982
    Assignee: Sharp Corporation
    Inventors: Tsutomu Yamasaki, Harumi Tatsugami
  • Combined billing and controller terminal for filling stations
    Patent number: D266669
    Type: Grant
    Filed: June 6, 1980
    Date of Patent: October 26, 1982
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Tsutomu Yamasaki