Patents by Inventor Yasuo Kotaki

Yasuo Kotaki 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 CONTAINER FOR INK JET PRINTER, HOLDER FOR THE CONTAINER, CARRIAGE FOR THE HOLDER, AND INK JET PRINTER
    Publication number: 20100265306
    Abstract: An ink container for containing ink to be supplied to an ink jet head to which the ink container is detachably mountable, includes an ink supply port for supplying the ink to the ink jet head; a air vent for fluid communication with ambience; a claw-like projection provided on a first side of the ink container; a latching lever provided on a second side opposite from the ink container, the latching lever being resiliently supported on the ink container and having a latching claw.
    Type: Application
    Filed: June 29, 2010
    Publication date: October 21, 2010
    Inventors: Hiroyuki Inoue, Sadayuki Sugama, Soichi Hiramatsu, Toshihiko Ujita, Akihiro Yamanaka, Yasuo Kotaki, Keiichiro Tsukuda
  • 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
  • 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
  • INK TANK AND RECORDING APPARATUS
    Publication number: 20100157002
    Abstract: An ink tank includes an ink supply connection port connected to a main body of a recording apparatus for supplying ink thereto, a first ink reservoir reserving the ink supplied to a sub-tank, a first ink delivery passage supplying the ink reserved in the first ink reservoir to the ink supply connection port, a one-way valve disposed in the first ink delivery passage that enables the ink to move from the first ink reservoir to the ink supply connection port, a second ink reservoir reserving the ink returned from the sub-tank, and a second ink delivery passage supplying the ink reserved in the second ink reservoir to the ink supply connection port and joins with the first ink delivery passage at a position between the one-way valve and the ink supply connection port.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 24, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hitoshi Takada, Yasuo Kotaki, Hideki Ogura, Eiichi Adachi
  • 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
  • Liquid tank
    Patent number: 7686438
    Abstract: A liquid tank includes a liquid chamber for holding liquid and an absorption chamber containing an absorber for absorbing and holding the liquid. The liquid chamber and the absorption chamber are separated by a partition. The partition has a communication part allowing communication between the liquid chamber and the absorption chamber. The liquid chamber is substantially sealed except at the communication part. The absorption chamber has a liquid outlet and an air inlet. A liquid-guiding path is disposed on the bottom surface of the liquid tank. The liquid-guiding path extends from the communication part to a point a predetermined distance away from the liquid outlet.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: March 30, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Ogawa, Wataru Takahashi, Tatsuo Nanjo, Yasuo Kotaki
  • 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
  • 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
    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
  • 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
  • Liquid ejection head, recording apparatus having same and manufacturing method therefor
    Patent number: 7618123
    Abstract: A liquid ejecting head includes a card edge contact having a plurality of electrical contacts for transmission of a driving signal; a recording element substrate having a recording element for generating energy contributable to eject liquid onto a recording material in response to the driving signal; and an electrical flexible cable for electrical connection between the card edge contact and the recording element substrate.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: November 17, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Ohashi, Yasuo Kotaki, Hiroaki Mihara, Noriko Sato, Kenji Kitabatake
  • 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
    Publication number: 20090189963
    Abstract: A liquid container includes a housing having a supply port leading out liquid contained in the housing, a spring member configured to generate a negative pressure, a flexible member joined to the housing to form a liquid chamber, a plate member disposed between the flexible film and the spring member, a lid member configured to cover the flexible member and secured to the housing, and a rib member movably disposed in a space surrounded by the lid member and the flexible member and configured to regulate the shape of the flexible member and the position of the plate member.
    Type: Application
    Filed: January 29, 2009
    Publication date: July 30, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Ohashi, Yasuo Kotaki, Koichi Kubo, Tatsuo Nanjo
  • LIQUID CONTAINER
    Publication number: 20090179979
    Abstract: This invention provides a highly reliable liquid container without degrading a liquid accommodation efficiency or increasing a substantial cost. When the liquid container is impacted, the liquid container can protect against damage the flexible film that forms the liquid accommodation chamber. The recessed portion is provided on the inner surface of the cover member facing the plate material. Provided at the opening of the recessed portion is the shock absorbing sheet that elastically deforms into the recessed portion when the plate member is impacted.
    Type: Application
    Filed: December 30, 2008
    Publication date: July 16, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tatsuo Nanjo, Yasuo Kotaki, Tetsuya Ohashi, Koichi Kubo
  • Ink tank with valve in ink supply port
    Patent number: 7559636
    Abstract: An ink tank capable of a stable ink supply to a print head uses a simple valve construction. In one preferred example, an ink path is closed by a lip portion of a valve rubber engaging a flange, and an angle formed by an inner surface of an opening in the lip portion and an engagement surface of the flange is an acute angle.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: July 14, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Kitabatake, Yasuo Kotaki, Keisuke Matuso, Toshihiko Ujita, Hiromasa Amma
  • Ink tank for printer
    Patent number: D611532
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: March 9, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuo Nanjo, Naoki Tashiro, Yasunori Senshiki, Yasuo Kotaki, Tetsuya Ohashi, Koichi Kubo
  • 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