Patents by Inventor Masaji Sawada

Masaji Sawada 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 printing calculator
    Patent number: D280418
    Type: Grant
    Filed: January 5, 1983
    Date of Patent: September 3, 1985
    Assignee: Sharp Corporation
    Inventors: Shigeaki Hayashi, Masaji Sawada, Hiroshi Sakaguchi, Kazuo Yamada
  • Printing calculator
    Patent number: D281435
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: November 19, 1985
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Hiroshi Sakaguchi, Shigeaki Hayashi, Kazuo Yamada
  • Electronic printing calculator
    Patent number: D281886
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: December 24, 1985
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Hiroshi Sakaguchi, Shigeaki Hayashi, Kazuo Yamada
  • Portable computer
    Patent number: D284474
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: July 1, 1986
    Assignee: Sharp Corporation
    Inventor: Masaji Sawada
  • Electronic calculator
    Patent number: D285311
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: August 26, 1986
    Assignee: Sharp Corporation
    Inventor: Masaji Sawada
  • Electronic calculator
    Patent number: D289177
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: April 7, 1987
    Assignee: Sharp Corporation
    Inventor: Masaji Sawada
  • Autodialer with electronic telephone directory
    Patent number: D306298
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: February 27, 1990
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Tadahiko Saimen
  • Electronic calculator with solar cell
    Patent number: D307032
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: April 3, 1990
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Toshiya Takahashi
  • Case for electronic calculator
    Patent number: D307293
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: April 17, 1990
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Toshiya Takahashi
  • Electronic calculator
    Patent number: D308534
    Type: Grant
    Filed: December 9, 1987
    Date of Patent: June 12, 1990
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Katsuhiro Iida, Toshiya Takahashi
  • Electronic calculator with printer
    Patent number: D308985
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: July 3, 1990
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Katsuhiro Iida
  • Electronic calculator
    Patent number: D309153
    Type: Grant
    Filed: September 9, 1987
    Date of Patent: July 10, 1990
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Toshiya Takahashi
  • Electronic memorandum input/output terminal
    Patent number: D309601
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: July 31, 1990
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Kuniyasu Matsumoto
  • Electronic calculator
    Patent number: D309623
    Type: Grant
    Filed: December 9, 1987
    Date of Patent: July 31, 1990
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Katsuhiro Iida, Toshiya Takahashi
  • Electronic calculator
    Patent number: D309625
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: July 31, 1990
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Toshiya Takahashi
  • Case for electronic calculator
    Patent number: D309628
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: July 31, 1990
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Hiroshi Sakaguchi, Katsuhiro Iida
  • Electronic calculator with voice clock
    Patent number: D312831
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: December 11, 1990
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Katsuhiro Iida
  • Combined computer and cover
    Patent number: D313792
    Type: Grant
    Filed: July 13, 1988
    Date of Patent: January 15, 1991
    Assignee: Sharp Corporation
    Inventor: Masaji Sawada
  • Memorandum input/output device
    Patent number: D317440
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: June 11, 1991
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Kuniyasu Matsumoto
  • Binder
    Patent number: D317462
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: June 11, 1991
    Assignee: Sharp Corporation
    Inventors: Masaji Sawada, Kuniyasu Matsumoto