Patents by Inventor Hiroyuki Tokuda

Hiroyuki Tokuda 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).

  • Printing head for printer
    Patent number: D356109
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: March 7, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Abe, Eiichiro Shimizu, Tetsuya Sekine, Hiroyuki Tokuda
  • Ink cartridge for printer
    Patent number: D356110
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: March 7, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Tetsuya Sekine, Masahiko Higuma, Tsutomu Abe, Masami Ikeda
  • Printer for electronic computer
    Patent number: D356818
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: March 28, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Sekine, Hiroyuki Tokuda
  • Image forming apparatus
    Patent number: D357272
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: April 11, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Ryoko Unishi
  • Automatic envelope feeder for laser beam printer
    Patent number: D357498
    Type: Grant
    Filed: January 12, 1993
    Date of Patent: April 18, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Hideki Ito
  • Printing head for printer
    Patent number: D359070
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: June 6, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Tetsuya Sekine
  • Ink cartridge for printer
    Patent number: D359755
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: June 27, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Tetsuya Sekine, Masahiko Higuma, Tsutomu Abe, Masami Ikeda
  • Ink cartridge for printer
    Patent number: D360895
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: August 1, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Tetsuya Sekine, Masahiko Higuma, Tsutomu Abe, Masami Ikeda
  • Ink cartridge for printer
    Patent number: D361591
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: August 22, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Tetsuya Sekine, Masahiko Higuma, Tsutomu Abe, Masami Ikeda
  • Ink tank for printer
    Patent number: D367884
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: March 12, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoichi Taneya, Hiroyuki Ishinaga, Hiroyuki Tokuda, Tetsuya Sekine
  • Ink tank for printer
    Patent number: D371160
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: June 25, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuo Kotaki, Yuji Hamasaki, Hideo Saikawa, Hiroyuki Tokuda, Shosaku Kawashima, Masanori Takenouchi, Osamu Sato, Hisashi Yamamoto, Jun Hinami, Toshiaki Sasaki
  • Ink tank for printer
    Patent number: D371389
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: July 2, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoichi Taneya, Hiroyuki Ishinaga, Hiroyuki Tokuda, Tetsuya Sekine
  • Combined ink tank holder and printing head for printer
    Patent number: D371804
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: July 16, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuo Kotaki, Yuji Hamasaki, Hideo Saikawa, Toshihiko Ujita, Minoru Nozawa, Hiroyuki Tokuda, Shosaku Kawashima, Masanori Takenouchi, Teruo Arashima, Masashi Miyagawa
  • Ink tank for printer
    Patent number: D372045
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: July 23, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D372265
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: July 30, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D372266
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: July 30, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D372267
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: July 30, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D372494
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: August 6, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki
  • Ink tank for printer
    Patent number: D372732
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: August 13, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoichi Taneya, Hiroyuki Ishinaga, Hiroyuki Tokuda, Tetsuya Sekine
  • Ink tank for printer
    Patent number: D373138
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: August 27, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Tokuda, Masanori Takenouchi, Yasuo Kotaki, Yuji Hamasaki