Patents by Inventor Izumi Nozawa

Izumi Nozawa 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).

  • Publication number: 20070158475
    Abstract: An ink jet type recording apparatus comprises a connection member which has a passage for leading ink to a recording head from an ink cartridge. In the passage, a valve member having a magnetic body is provided. A rotation member has a permanent magnet and is rotatable between a first position and a second position. When the rotation member is located in the first position, an attraction that can move the valve member in an opening direction of the passage acts between the magnet and magnetic body, and hence, the valve member opens the passage. When the rotation member is located in the second position, the attraction that can move the valve member does not act between the magnet and magnetic body, and hence, the valve member closes the passage.
    Type: Application
    Filed: July 19, 2004
    Publication date: July 12, 2007
    Inventors: Hitotoshi Kimura, Izumi Nozawa, Taku Ishizawa
  • Patent number: 7226035
    Abstract: A valve member is located in a passage through which fluid passes. The valve member selectively opens and closes the passage. The valve member is supported by a support member formed a magnetic material. An electromagnetic driving mechanism attracts the support member with magnetic force. The electromagnetic driving mechanism is located outside the passage. When attracting the support member, the electromagnetic driving mechanism selectively opens and closes the passage with the valve member.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: June 5, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Hitotoshi Kimura, Izumi Nozawa
  • Publication number: 20070064070
    Abstract: The apparatus has valve units capable of blocking respectively liquid feed paths connecting a liquid storage unit and a liquid jet head, and control unit. The control unit has a function for executing a pressure reduction step of putting the valve unit corresponding to the kind of liquid to be cleaned into an open state, simultaneously putting the other valve units into a closed state, exhausting a closed space formed by a capping unit with the head and generating a negative pressure state therein, a totally-closing step of switching the valve unit in the open state to the closed state and putting all the valve units into the closed state almost simultaneously with stopping exhausting or immediately before it, and a totally-opening step of putting all the valve units into the open state after a lapse of a predetermined time. Cleaning is executed only for a specific kind of liquid free of obstacles.
    Type: Application
    Filed: November 21, 2006
    Publication date: March 22, 2007
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Izumi Nozawa, Shuhei Harada, Nobuhito Takahashi
  • Publication number: 20070051910
    Abstract: A valve member is located in a passage through which fluid passes. The valve member selectively opens and closes the passage. The valve member is supported by a support member formed a magnetic material. An electromagnetic driving mechanism attracts the support member with magnetic force. The electromagnetic driving mechanism is located outside the passage. When attracting the support member, the electromagnetic driving mechanism selectively opens and closes the passage with the valve member.
    Type: Application
    Filed: November 7, 2006
    Publication date: March 8, 2007
    Inventors: Hitotoshi Kimura, Izumi Nozawa
  • Patent number: 7159961
    Abstract: The apparatus has valve units capable of blocking respectively liquid feed paths connecting a liquid storage unit and a liquid jet head, and control unit. The control unit has a function for executing a pressure reduction step of putting the valve unit corresponding to the kind of liquid to be cleaned into an open state, simultaneously putting the other valve units into a closed state, exhausting a closed space formed by a capping unit with the head and generating a negative pressure state therein, a totally-closing step of switching the valve unit in the open state to the closed state and putting all the valve units into the closed state almost simultaneously with stopping exhausting or immediately before it, and a totally-opening step of putting all the valve units into the open state after a lapse of a predetermined time. Cleaning is executed only for a specific kind of liquid free of obstacles.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: January 9, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Izumi Nozawa, Shuhei Harada, Nobuhito Takahashi
  • Publication number: 20060290754
    Abstract: A holder 204 which holds a connector 203 contacting with an electrical connection terminal portion 202 and can move with respect to a recording apparatus is provided, and a relative positioning unit 210 which allows the ink cartridge 11 to contact with the holder 204 and move the holder 204 in an mounting direction (Y-axis direction) of the ink cartridge 11 to determine a relative position between the ink cartridge 11 and the holder 204 when the ink cartridge 11 is mounted is provided.
    Type: Application
    Filed: June 9, 2006
    Publication date: December 28, 2006
    Inventors: Izumi Nozawa, Satoshi Kobayashi
  • Publication number: 20060012650
    Abstract: A connection part is attached to an end of a liquid delivery tube, the connection part being provided with a flow path for changing the flowing direction of a liquid.
    Type: Application
    Filed: April 12, 2005
    Publication date: January 19, 2006
    Applicant: Seiko Epson Corporation
    Inventors: Atsushi Kobayashi, Munehide Kanaya, Izumi Nozawa, Yoshiharu Aruga, Kazuyuki Saito, Natsuki Uemura
  • Publication number: 20050275671
    Abstract: A plurality of cylindrical port defining portions project from a passage defining member defining a plurality of passages. A supply line defining body defining a plurality of supply lines is formed of an elastic member. The supply line defining body includes a plurality of openings each communicating with a corresponding one of the liquid supply lines. Each of the port defining portions extends perpendicularly to the direction in which each of the passages extends. Each of the openings extends perpendicular to the direction in which each of the liquid supply lines extends. A securing member fastens the port defining portions with respect to the corresponding openings collectively, by applying fastening force to the passage defining member and the supply line defining body in the axial direction of each port defining portion. Accordingly, improved seal performance is reliably obtained.
    Type: Application
    Filed: April 7, 2005
    Publication date: December 15, 2005
    Inventors: Atsushi Kobayashi, Toshio Kumagai, Yoshiharu Aruga, Izumi Nozawa
  • Patent number: 6974202
    Abstract: The apparatus has valve units capable of blocking respectively liquid feed paths connecting a liquid storage unit and a liquid jet head, and control unit. The control unit has a function for executing a pressure reduction step of putting the valve unit corresponding to the kind of liquid to be cleaned into an open state, simultaneously putting the other valve units into a closed state, exhausting a closed space formed by a capping unit with the head and generating a negative pressure state therein, a totally-closing step of switching the valve unit in the open state to the closed state and putting all the valve units into the closed state almost simultaneously with stopping exhausting or immediately before it, and a totally-opening step of putting all the valve units into the open state after a lapse of a predetermined time. Cleaning is executed only for a specific kind of liquid free of obstacles.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: December 13, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Izumi Nozawa, Shuhei Harada, Nobuhito Takahashi
  • Publication number: 20050190227
    Abstract: The apparatus has valve units capable of blocking respectively liquid feed paths connecting a liquid storage unit and a liquid jet head, and control unit. The control unit has a function for executing a pressure reduction step of putting the valve unit corresponding to the kind of liquid to be cleaned into an open state, simultaneously putting the other valve units into a closed state, exhausting a closed space formed by a capping unit with the head and generating a negative pressure state therein, a totally-closing step of switching the valve unit in the open state to the closed state and putting all the valve units into the closed state almost simultaneously with stopping exhausting or immediately before it, and a totally-opening step of putting all the valve units into the open state after a lapse of a predetermined time. Cleaning is executed only for a specific kind of liquid free of obstacles.
    Type: Application
    Filed: April 29, 2005
    Publication date: September 1, 2005
    Inventors: Izumi Nozawa, Shuhei Harada, Nobuhito Takahashi
  • Publication number: 20050041078
    Abstract: A liquid container contains a liquid therein and is detachably mountable to a liquid ejection device. The liquid container has a liquid lead-out port for supplying said liquid to the outside, the liquid lead-out port being disposed in a connection surface, and an abutment surface for opening a channel valve by abutting against part of said channel valve provided in said liquid ejection device, the abutment surface being disposed in said connection surface.
    Type: Application
    Filed: July 16, 2004
    Publication date: February 24, 2005
    Inventors: Hitotoshi Kimura, Taku Ishizawa, Izumi Nozawa
  • Publication number: 20040021107
    Abstract: A valve member is located in a passage through which fluid passes. The valve member selectively opens and closes the passage. The valve member is supported by a support member formed a magnetic material. An electromagnetic driving mechanism attracts the support member with magnetic force. The electromagnetic driving mechanism is located outside the passage. When attracting the support member, the electromagnetic driving mechanism selectively opens and closes the passage with the valve member.
    Type: Application
    Filed: April 14, 2003
    Publication date: February 5, 2004
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hitotoshi Kimura, Izumi Nozawa
  • Publication number: 20030227506
    Abstract: The apparatus has valve units capable of blocking respectively liquid feed paths connecting a liquid storage unit and a liquid jet head, and control unit. The control unit has a function for executing a pressure reduction step of putting the valve unit corresponding to the kind of liquid to be cleaned into an open state, simultaneously putting the other valve units into a closed state, exhausting a closed space formed by a capping unit with the head and generating a negative pressure state therein, a totally-closing step of switching the valve unit in the open state to the closed state and putting all the valve units into the closed state almost simultaneously with stopping exhausting or immediately before it, and a totally-opening step of putting all the valve units into the open state after a lapse of a predetermined time. Cleaning is executed only for a specific kind of liquid free of obstacles.
    Type: Application
    Filed: March 17, 2003
    Publication date: December 11, 2003
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Izumi Nozawa, Shuhei Harada, Nobuhito Takahashi