Patents by Inventor Etsurou Suzuki

Etsurou Suzuki 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).

  • Liquid container with bladder-like member and liquid path along an interior container wall
    Patent number: 5453772
    Abstract: An ink tank for storing ink to be supplied to a recording unit comprises a bag-like member arranged in an inner space of the ink tank and communicating with the atmosphere, which bag-like member has a volume variable from substantially zero to a volume substantially equal to that of the inner space of the ink tank. Ink is stored in a space defined between the ink tank and the bag-like member and a liquid path is formed in an inner wall surface of the ink tank.
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: September 26, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Aono, Yoshifumi Hattori, Masashi Kitani, Etsurou Suzuki, Hideo Saikawa, Masami Kojima, Kenji Kawano, Koichi Tanno
  • Ink supply device with elastic valve for liquid supplying slit
    Patent number: 5365260
    Abstract: An ink jet cartridge is composed integrally of a recording head and an ink tank, which are constructed in mutually separable manner, in order to enable repeated use of the recording head by replacement of the ink tank. In an ink supply part in the ink tank, an elastic partition wall is provided with a slit which is normally closed but is opened under a predetermined pressure difference. The slit is so designed as to generate an appropriate negative pressure on the recording head, thereby preventing ink leakage. Also a slit shielding valve member is provided to shield the slit at the abrupt inhaling action of the ink tank at the detaching of the ink tank, in order to prevent air intrusion into the ink tank.
    Type: Grant
    Filed: June 17, 1992
    Date of Patent: November 15, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Kitani, Yoshifumi Hattori, Etsurou Suzuki, Hideo Saikawa, Masami Kojima, Kenji Kawano, Koichi Tanno, Kenji Aono
  • Sealed insulated ink container
    Patent number: 5365262
    Abstract: An ink container for containing ink includes an outer casing; an inner casing, in the outer casing, for containing the ink therein; filler material disposed between the outer casing and the inner casing to isolate the ink from ambient condition change.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: November 15, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshifumi Hattori, Masashi Kitani, Etsurou Suzuki, Hideo Saikawa, Masami Kojima, Kenji Kawano, Koichi Tanno, Kenji Aono
  • Liquid container having an elastic dome-shaped pressure control device with a slit
    Patent number: 5270739
    Abstract: A liquid container includes a liquid outlet for supplying liquid, a pressure control device disposed in the container and adjacent to the outlet The pressure control device has a value function for permitting liquid supply through the outlet within a predetermined pressure range.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: December 14, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Kitani, Yoshifumi Hattori, Etsurou Suzuki, Hideo Saikawa, Masami Kojima, Kenji Kawano, Koichi Tanno, Kenji Aono