Patents by Inventor Kenji Tamada

Kenji Tamada 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).

  • Typewriter for European languages
    Patent number: D273117
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: March 20, 1984
    Assignee: Silver Seiko Limited
    Inventors: Taro Kasagi, Kenji Tamada
  • Menu printer
    Patent number: D284771
    Type: Grant
    Filed: April 25, 1984
    Date of Patent: July 22, 1986
    Assignee: Silver Seiko Limited
    Inventors: Kenji Tamada, Tadashi Yanagi
  • Ribbon cassette for typewriter
    Patent number: D286057
    Type: Grant
    Filed: November 28, 1984
    Date of Patent: October 7, 1986
    Assignee: Silver Seiko Ltd.
    Inventors: Kenji Tamada, Junzo Ueki, Yoshiaki Nakajima
  • Typewriter
    Patent number: D290616
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: June 30, 1987
    Assignee: Silver Seiko Limited
    Inventors: Taro Kasagi, Kenji Tamada, Hideo Aoki
  • Print wheel cartridge for typewriter
    Patent number: D291208
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: August 4, 1987
    Assignee: Silver Seiko Limited
    Inventors: Kenji Tamada, Yamakawa, Kazuaki Takahashi
  • Typewriter
    Patent number: D291323
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: August 11, 1987
    Assignee: Silver Seiko Limited
    Inventors: Taro Kasagi, Kenji Tamada, Hideo Aoki
  • Score collector for base-ball game
    Patent number: D297714
    Type: Grant
    Filed: May 15, 1985
    Date of Patent: September 20, 1988
    Assignee: Silver Seiko Limited
    Inventors: Kenji Tamada, Tadashi Yanagi
  • Typewriter
    Patent number: D299248
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: January 3, 1989
    Assignee: Silver Seiko Limited
    Inventors: Taro Kasagi, Kenji Tamada, Yojiro Fukui
  • Typewriter
    Patent number: D299249
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: January 3, 1989
    Assignee: Silver Seiko Limited
    Inventors: Taro Kasagi, Kenji Tamada, Yoshimitsu Nagashima
  • Typewriter
    Patent number: D300434
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: March 28, 1989
    Assignee: Silver Seiko Limited
    Inventors: Kenji Tamada, Tadashi Endo
  • Copying machine
    Patent number: D305775
    Type: Grant
    Filed: October 8, 1986
    Date of Patent: January 30, 1990
    Assignee: Silver Seiko, Limited
    Inventor: Kenji Tamada
  • Combined paper folder and envelope opener or similar article
    Patent number: D306249
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: February 27, 1990
    Assignee: Silver Seiko Ltd.
    Inventors: Kenji Tamada, Kimitoshi Saito
  • Typewriter
    Patent number: D313239
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: December 25, 1990
    Assignee: Silver Seiko Ltd.
    Inventors: Taro Kasagi, Kenji Tamada, Hideaki Itagaki