Patents by Inventor Ryoji Inoue

Ryoji Inoue 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).

  • Ink jet printing apparatus with ink stirring by carriage reciprocation
    Patent number: 7914101
    Abstract: The present invention provides an ink jet printing apparatus that can print appropriate images by efficiently stirring ink in an ink tank in accordance with its status to homogenize it. When the elapsed time from the end of reciprocation of the carriage is shorter than a specified time, a printing operation is performed after the end of the reciprocation. The number of times that the carriage is reciprocated so as to stir the ink after the printing operation is set in accordance with the number of scans of the carriage during the printing operation.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: March 29, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Ohashi, Yasuo Kotaki, Ryoji Inoue, Yoshito Mizoguchi, Daisaku Ide
  • Ink jet recording head and ink jet recording apparatus having a plurality of ink flow paths
    Patent number: 7815297
    Abstract: An ink jet recording head for ejecting, through an ink ejection outlet, ink introduced through an ink supply port includes a first ink flow path in fluid communication with the ink supply port; a second ink flow path which is branched from the first ink flow path at a branch portion and which is in fluid communication with the ink ejection outlet; and a third ink flow path for fluid communication between the branch portion and an outside.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: October 19, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuo Kotaki, Ryoji Inoue
  • Ink container and ink jet recording apparatus
    Patent number: 7784927
    Abstract: In an ink supply system for connecting with an ink container with a hollow communicating tube provided in the ink container, in order to prevent leakage of the ink from the communicating tube and simultaneously to prevent damage of the communicating tube projected from the ink container, the communicating tube 60 is made movable to be projected from the inside of the ink container and to be inserted into a recording head, thus establishing liquid communication between the inside of the ink container and the inside of the recording head.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: August 31, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryoji Inoue, Ryoichi Matsumoto, Hideki Ogura, Shogo Kawamura, Satoshi Oikawa
  • Liquid container
    Patent number: 7762654
    Abstract: A liquid container includes a housing, a flexible film, a liquid reservoir configured to directly store liquid therein and defined by the housing on one side and the flexible film on the other side, a liquid supply port provided in the liquid reservoir and configured to supply liquid to a recording head, and an overhang protruding from the housing and located in the liquid reservoir and substantially near the liquid supply port. The absorbing member is configured to absorb the inertial force of liquid, the inertial force being generated in liquid in the liquid reservoir by an external force applied to the housing.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: July 27, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shogo Kawamura, Yasuo Kotani, Hideki Ogura, Ryoji Inoue, Tetsuya Ohashi
  • LIQUID CONTAINER
    Publication number: 20100171801
    Abstract: A liquid container includes an air-tight liquid-storage chamber or reservoir, a movable member for agitating liquid, and a protrusion portion for supporting the movable member. The movable member and the protrusion portion are disposed in the liquid-storage chamber. The movable member includes a first end that is linearly movable along the protrusion portion and a second end that is free.
    Type: Application
    Filed: March 22, 2010
    Publication date: July 8, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shogo Kawamura, Yasuo Kotaki, Hideki Ogura, Ryoji Inoue, Tetsuya Ohashi
  • Liquid container
    Patent number: 7735984
    Abstract: An ink tank includes two stirring members having different masses in an ink containing chamber. The two stirring members are moved by an inertial force according to movement of a carriage and stir ink. The two stirring members have different movement start times and movement speeds.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: June 15, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasushi Iijima, Shogo Kawamura, Yasuo Kotaki, Ryoji Inoue, Hideki Ogura, Tetsuya Ohashi
  • Liquid container
    Patent number: 7708394
    Abstract: A liquid container includes an air-tight liquid-storage chamber or reservoir, a movable member for agitating liquid, and a protrusion portion for supporting the movable member. The movable member and the protrusion portion are disposed in the liquid-storage chamber. The movable member includes a first end that is linearly movable along the protrusion portion and a second end that is free.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: May 4, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shogo Kawamura, Yasuo Kotaki, Hideki Ogura, Ryoji Inoue, Tetsuya Ohashi
  • INK TANK
    Publication number: 20100053280
    Abstract: An ink tank containing ink including a pigment component effectively prevents a problem that an ink having a higher concentration and including a sedimentary pigment is led out, even in a case where the ink tank is left unused on a printing apparatus for a long time. To this end, an ink leading-out port placed in an ink containing chamber, and used to supply the ink to a printing head is located higher than a lowermost portion of the ink containing chamber, and is also formed in an inclined surface inclined to a gravitational direction. Thereby, the sedimentary pigment slides the inclined surface, and thus is settled down in a position away from the ink leading-out port.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 4, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Ohashi, Yasuo Kotaki, Ryoji Inoue, Koichi Kubo, Masashi Ogasawara
  • INK TANK AND RECORDING APPARATUS
    Publication number: 20100020141
    Abstract: An ink tank includes a stirrer supported in a freely moveable manner near an inner wall of an ink storage chamber. When the stirrer moves closest to the inner wall, a predetermined gap is formed between opposing surfaces of the inner wall and the stirrer.
    Type: Application
    Filed: October 2, 2009
    Publication date: January 28, 2010
    Applicant: Canon Kabushiki Kaisha
    Inventors: Koichi Kubo, Shogo Kawamura, Tetsuya Ohashi, Ryoji Inoue, Hideki Ogura, Yasuo Kotaki
  • TELEVISION TUNER
    Publication number: 20090322966
    Abstract: A television tuner capable of receiving digital television signals and analog television signals comprises: a mixer circuit that converts the received television signals into signals of an intermediate-frequency band, and an intermediate-frequency tuning circuit being connected to a rear end of the mixer circuit and set to a tuning frequency corresponding to a reception channel, wherein the intermediate-frequency tuning circuit includes: a first resonant circuit configured to have a first capacitance and to have a resonant frequency set in the intermediate-frequency band, and a second resonant circuit configured to have a second capacitance and to have a resonant frequency set substantially equal to that of the first resonant circuit, and wherein the first capacitance is smaller than the second capacitance.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 31, 2009
    Inventor: Ryoji Inoue
  • Liquid container
    Patent number: 7621627
    Abstract: A liquid container having a liquid containing portion adapted to contain a liquid, a supplying portion facilitating supplying the liquid from the liquid containing portion to outside, and an agitating member configured to agitate the liquid, in which the agitating member has a bending portion.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: November 24, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Ohashi, Ryoji Inoue, Hideki Ogura, Shogo Kawamura, Yasuo Kotaki
  • Ink tank and recording apparatus using ink tank
    Patent number: 7618136
    Abstract: An ink tank includes a tank case and a stirrer. The proximal end of the stirrer is supported by the inner surface of the tank case in a pivotal manner. When the stirrer moves close to the inner surface of the ink tank, the stirrer is substantially parallel to the inner surface. The stirrer includes a through-hole in the vicinity of the proximal end thereof.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: November 17, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryoji Inoue, Yasuo Kotaki, Tetsuya Ohashi, Shogo Kawamura, Hideki Ogura
  • Ink tank and recording apparatus
    Patent number: 7618133
    Abstract: An ink tank includes a stirrer supported in a freely moveable manner near an inner wall of an ink storage chamber. When the stirrer moves closest to the inner wall, a predetermined gap is formed between opposing surfaces of the inner wall and the stirrer.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: November 17, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Kubo, Shogo Kawamura, Tetsuya Ohashi, Ryoji Inoue, Hideki Ogura, Yasuo Kotaki
  • Liquid supply system, fluid communicating structure, ink supply system, and inkjet recording head utilizing the fluid communicating structure
    Patent number: 7607770
    Abstract: A liquid (ink) supply system having a closed structure with respect to an inkjet recording head is configured such that a gas hindering a recording operation and a liquid supply operation can be rapidly and smoothly eliminated from a liquid supply system without involving any complication in structure. An ink tank (10) and a liquid chamber (50) for leading ink supplied to the recording head (20) are brought into fluid communication via two communication channels (53 and 54). Thus, in the state where the gas exists inside the liquid chamber, the ink is moved from the ink tank (10) via one communication channel (53), while the gas is transferred to the ink tank (10) via the other communication channel (54).
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: October 27, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryoji Inoue, Hiroyuki Ishinaga, Nobuyuki Kuwabara, Tetsuya Ohashi, Hideki Ogura
  • INK CONTAINER AND INK JET RECORDING SYSTEM
    Publication number: 20090244217
    Abstract: An ink container for retaining ink includes an ink containing body, an elastically displaceable supporting member, a light emitting portion, a light receiving portion for receiving light from the light emitting portion, a display portion for displaying the received light, and a light guide portion for optically connecting the light receiving portion and the display portion so as to guide the light received by the receiving portion to the display portion. The supporting member at least partly functions as the light guide portion. The light receiving portion is located, with a gap with respect to the light emitting portion, so as to cover the light emitting portion. The light receiving portion approaches the light emitting portion when the supporting member approaches the ink containing body by being subjected to urging toward the ink containing body.
    Type: Application
    Filed: March 30, 2009
    Publication date: October 1, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ryoji Inoue, Yasuo Kotaki, Tetsuya Ohashi, Koichi Kubo
  • Liquid container and method for manufacturing the same
    Patent number: 7530678
    Abstract: A liquid container and its manufacturing method configured to contain a spring member and crimp a flexible member in a frame, wherein positional shift between the flexible member and the fixing member (frame) caused by compression of the spring during manufacturing process is prevented and no device is necessary for spring compression. Accordingly, the liquid container includes a liquid storage portion including a deformable flexible member, a planar portion disposed in the flexible member, and the spring member which abuts on the planar portion to generate negative pressure in the liquid container. The planar portion includes an engaging portion disposed in the planar portion and engaging the elastic portion so as to facilitate holding the elastic portion in a compressed state and releasing the elastic portion from the compressed state.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: May 12, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideki Ogura, Ryoichi Matsumoto, Shogo Kawamura, Ryoji Inoue
  • Ink supply system, recording apparatus, recording head, and liquid supply system
    Patent number: 7517067
    Abstract: An ink supply system comprises an ink tank which contains ink, and a liquid chamber which is connected to the ink tank through a plurality of communication paths, and supplies ink taken from the ink tank to a recording head, wherein the liquid chamber, except the plurality of communication paths and a connection section to the recording head, forms a substantially sealed space; the liquid chamber is provided with a filter which can partition the inside of the liquid chamber into a first region at the side of the ink tank and a second region at the side of the recording head, and can form a meniscus of ink which is broken by a pressure of gas in the second region.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: April 14, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryoji Inoue, Hideki Ogura
  • INK TANK AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20080239037
    Abstract: An ink tank includes an ink containing chamber configured to directly contain ink, a supply port configured to supply the ink from the ink containing chamber to a recording head, a capillary member disposed in the supply port to hold the ink, and a sealing member configured to cover the supply port. An air volume (V) of a space constituted by the capillary member and the sealing member, an ink volume (Vi) held by the capillary member, and a maximum volume (Vexp) when air expands in the space accompanying environmental fluctuation of the ink tank, satisfy Vi?Vexp?V.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 2, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ryoji Inoue, Yasuo Kotaki, Tetsuya Ohashi, Hitoshi Takada, Hideki Ogura, Kouichi Kubo, Tatsuo Nanjo
  • Ink cartridge for printer
    Patent number: D624960
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: October 5, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryoji Inoue, Naoki Tashiro, Hiroki Nakanishi, Yasuo Kotaki, Tetsuya Ohashi, Koichi Kubo
  • Ink cartridge for printer
    Patent number: D626173
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: October 26, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryoji Inoue, Naoki Tashiro, Hiroki Nakanishi, Yasuo Kotaki, Tetsuya Ohashi, Koichi Kubo