Patents by Inventor Satoshi Kudo

Satoshi Kudo 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).

  • Patent number: 7735957
    Abstract: To provide a suction recovery method of an ink jet printing apparatus by which ink can be securely filled to an ink flow path and a nozzle while minimizing an amount of ink discharge during a suction recovery to prevent an adverse effect such as invited bubbles. The suction recovery method firstly performs the first suction step for generating a negative pressure for sucking a filter section for separating bubbles from the filter section. Thereafter, a second suction step is performed to generate a negative pressure for sucking an ink in the ink flow path and a large nozzle. Thereafter, a third suction step is performed to suck ink from a small nozzle.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: June 15, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Kudo, Yukuo Yamaguchi
  • Publication number: 20100132608
    Abstract: A silica glass crucible for pulling up a silicon single crystal including a wall part, a corner part and a bottom part is provided with an outer layer formed from an opaque silica glass layer which includes many bubbles, and an inner layer formed from a transparent silica glass layer which substantially does not include bubbles, wherein at least one part of an inner surface of the wall part and the corner part being an uneven surface formed with multiple damaged parts having a depth of 50 ?m or more and 450 ?m or less, and wherein a region among the inner surface of the bottom part within a certain range from the center of the bottom part being a smooth surface which does is substantially not formed with damage.
    Type: Application
    Filed: November 27, 2009
    Publication date: June 3, 2010
    Applicant: JAPAN SUPER QUARTZ CORPORATION
    Inventors: Masaki MORIKAWA, Jun FURUKAWA, Satoshi KUDO
  • Publication number: 20100107965
    Abstract: A silica glass crucible for pulling up a silicon single crystal including a wall part and a bottom part is provided with a natural silica glass layer which forms at least one part of a an inner surface of the bottom part, and a synthetic silica glass layer which forms at least an inner surface of the wall part, wherein a concentration of Ca included in the natural silica glass layer is 0.5 ppm or less.
    Type: Application
    Filed: October 28, 2009
    Publication date: May 6, 2010
    Applicant: JAPAN SUPER QUARTZ CORPORATION
    Inventors: Masanori FUKUI, Satoshi KUDO, Masaki MORIKAWA
  • Patent number: 7699924
    Abstract: Provided herein is an aqueous ink, which is excellent in both image density and fixing ability irrespective of the kind of a recording medium even when the volume of an ink droplet is small and has such excellent properties that white stripes are not caused even when high-speed recording is conducted. The aqueous ink comprises at least water, a water-soluble organic solvent, a water-insoluble coloring material, a surfactant and a poor medium for the water-insoluble coloring material and/or a salt. The dynamic surface tension of the aqueous ink at a lifetime of 50 milliseconds determined by a maximum bubble pressure method is higher than 47 mN/m, and the dynamic surface tension at a lifetime of 5,000 milliseconds determined by the maximum bubble pressure method is 38 mN/m or lower.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: April 20, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kumiko Mafune, Mikio Sanada, Kenji Moribe, Tomonari Watanabe, Daiji Okamura, Satoshi Kudo, Fumiharu Nakamura
  • Patent number: 7695944
    Abstract: A method for producing a phospholipid using transphosphatidylation, which comprises homogenizing a mixture of a raw material phospholipid, a hydroxyl-containing acceptor, phospholipase D, and water in the absence of an organic solvent to obtain a homogenized mixture; and subjecting the homogenized mixture to a transphosphatidylation reaction at 15° C. to 65° C. The homogenized mixture has a lamellar lyotropic liquid crystal structure. An objective phospholipid can be obtained from the homogenized mixture through transphosphatidylation without using an organic solvent or calcium.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: April 13, 2010
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Masashi Sakai, Rika Ebina, Hideyuki Yamatoya, Satoshi Kudo
  • Patent number: 7682433
    Abstract: In an ink set having a plurality of inks, the ink set has at least a pigment ink and a dye ink. The pigment ink contains at least water, a surfactant, a self-dispersion pigment, and a poor medium for self-dispersion pigment and/or a salt; a dynamic surface tension of the pigment ink at a lifetime of 50 milliseconds is higher than 47 mN/m. The dye ink contains at least water, a surfactant and a dye. An ink set is provided which can obtain images having a high image density and a superior bleeding resistance without regard to the types of recording mediums.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: March 23, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satomi Yanagimachi, Kumiko Mafune, Mikio Sanada, Kenji Moribe, Tomonari Watanabe, Daiji Okamura, Hideki Yamakami, Satoshi Kudo, Fumiharu Nakamura
  • Publication number: 20090315945
    Abstract: A present invention improves the impact accuracy of ejected droplets, the quality of printed images, and print speed. A print head according to the present invention has an ink channel for which the width thereof in a direction orthogonal to an ink supply direction in which ink is supplied from an ink supply port to a pressure chamber is smaller than that of a pressure chamber. In the print head, the center of a heater along the ink supply direction is offset from the center of the pressure chamber along the ink supply direction, toward the side of the pressure chamber far from the ink supply port in the ink supply direction.
    Type: Application
    Filed: June 17, 2009
    Publication date: December 24, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masaki Oikawa, Keiji Tomizawa, Mikiya Umeyama, Toru Yamane, Yuichiro Akama, Chiaki Muraoka, Tomotsugu Kuroda, Shingo Nagata, Satoshi Kudo
  • Publication number: 20090238976
    Abstract: The present invention provides an ink jet ink, which gives a superior lightfastness to an ink image, has a superior sticking resistance and intermittent ejection stability, and gives a preferable color tone to the image. The ink includes an azo-based dye represented by formula (I) and a water-soluble organic solvent represented by bis(2-hydroxyethyl)sulfone represented by formula (II).
    Type: Application
    Filed: February 20, 2009
    Publication date: September 24, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Mitsuru Ishii, Hiroshi Tomioka, Daiji Okamura, Hideki Yamakami, Satoshi Kudo, Otome Mori
  • Publication number: 20090238975
    Abstract: An ink jet ink providing an image having excellent lightfastness and having sticking resistance and intermittent ejection stability. The ink jet ink is characterized by containing at least a compound represented by the following general formula (I) and a compound represented by the following general formula (II).
    Type: Application
    Filed: February 20, 2009
    Publication date: September 24, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hideki Yamakami, Hiroshi Tomioka, Daiji Okamura, Mitsuru Ishii, Satoshi Kudo, Otome Mori
  • Publication number: 20090181437
    Abstract: A method for producing a conjugated linoleic acid glyceride in the form of an ester bond of a conjugated linoleic acid with glycerol, involving reacting a starting material containing a linoleic acid glyceride with a microorganism or an enzyme generated by the microorganism which has a potency to isomerize the linoleic acid glyceride into a conjugated linoleic acid glyceride.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 16, 2009
    Applicant: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Satoshi Kudo, Naomi Mizusawa, Mahoko Hamura
  • Patent number: 7556366
    Abstract: A joint member is made of an elastic member whose cross sectional shape is an almost M-character shape and which has: an inserting portion formed with an opening portion and a slit; an outer edge portion as an outer peripheral portion of the joint member; and a supporting fixing portion for coupling the inserting portion and the outer edge portion on the upper portion side. A cross sectional shape of an opening of the opening portion is a shape of a circular cone frustum in which the opening and a bottom surface are coupled via an inclined surface. The slit is formed in the rectangular bottom surface. The joint member is sandwiched between a casing and a pressing plate. The inserting portion and the supporting fixing portion exist in planes which are different in the inserting direction of a liquid supply needle.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: July 7, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kiyomitsu Kudo, Junji Shimoda, Akira Tsujimoto, Satoshi Kudo, Toru Suzuki
  • Publication number: 20090153633
    Abstract: An inkjet head includes a recording element substrate, on which sets of energy generating elements generating energy to discharge ink and a supply port supplying ink to discharge ports are arranged, and an orifice plate including the discharge ports. The sets include a set having a first supply port disposed at a first edge of the substrate and a set having a second supply port disposed at a second edge of the substrate opposite the first edge. The distance between the second edge and the second supply port is shorter than the distance between the first edge and the first supply port. A contact area between the substrate and second channel walls that form second ink channels communicating with the second supply port is larger than the contact area between the substrate and first channel walls that form first ink channels communicating with the first supply port.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 18, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Kudo, Genji Inada
  • Publication number: 20090002445
    Abstract: An inkjet recording head includes a recording-element substrate having arranged therein multiple sets of nozzles that discharge ink, energy-generating elements that generate energy used for discharging the ink, and supply ports that supply the ink to the nozzles; and a sealant disposed around the recording-element substrate. The supply ports include a first supply port disposed near a first edge of the recording-element substrate and a second supply port disposed near a second edge of the recording-element substrate, the second edge being opposite to the first edge as viewed in the arrangement direction of the multiple sets. As viewed in the arrangement direction, a distance between the second edge and the second supply port is shorter than a distance between the first edge and the first supply port, and a volume of the sealant near the second edge is smaller than a volume of the sealant near the first edge.
    Type: Application
    Filed: June 24, 2008
    Publication date: January 1, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Kimura, Genji Inada, Torachika Osada, Keisuke Matsuo, Satoshi Kudo, Yukuo Yamaguchi
  • Patent number: 7469992
    Abstract: The present invention makes it possible to improve the alignment accuracy of the joint section of an ink cartridge with an ink supply route of an inkjet head. Based on this, the present invention provides an ink cartridge capable of preventing ink leakage with high reliability and constructed inexpensively in a reduced size and particularly suitable for a pit-in system. To attain this, distance (L1) is set to be shorter than distance (L2), where the distance (L1) is the one between a joint section (145) positioned in the proximity of a front surface (1A) of an ink cartridge (1) and an engage reference portion (135) serving as a reference position when the ink cartridge (1) is installed in the inkjet printing apparatus; and the distance (L2) is the one between the front surface (1A) of the ink cartridge (1) and the engage reference portion (135).
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: December 30, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toru Suzuki, Kiyomitsu Kudo, Satoshi Kudo, Akira Tsujimoto
  • Publication number: 20080280044
    Abstract: An aqueous ink used together with a black ink containing a self-dispersion pigment, wherein the aqueous ink contains a reactive component for destabilizing the dispersion state of the self-dispersion pigment, the dynamic surface tension of the aqueous ink at a lifetime of 30 milliseconds is 41 mN/m or more, and the dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is from 28 mN/m or more to 38 mN/m or less as determined by a maximum bubble pressure method.
    Type: Application
    Filed: May 5, 2008
    Publication date: November 13, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Daiji Okamura, Hiroyuki Takuhara, Yuuki Nishino, Mikio Sanada, Kenji Moribe, Satoshi Kudo
  • Publication number: 20080280041
    Abstract: An aqueous ink to be used together with a pigment ink containing a pigment and a polymer, wherein the aqueous ink contains a reactive component for destabilizing the dispersion state of the pigment, the dynamic surface tension of the aqueous ink at a lifetime of 30 milliseconds is 41 mN/m or more, and the dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is from 28 mN/m or more to 38 mN/m or less as determined by a maximum bubble pressure method.
    Type: Application
    Filed: May 5, 2008
    Publication date: November 13, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yuuki Nishino, Hiroyuki Takuhara, Mikio Sanada, Daiji Okamura, Kenji Moribe, Satoshi Kudo
  • Publication number: 20080280042
    Abstract: In an ink set having a plurality of inks, the ink set has at least a pigment ink and a dye ink. The pigment ink contains at least water, a surfactant, a self-dispersion pigment, and a poor medium for self-dispersion pigment and/or a salt; a dynamic surface tension of the pigment ink at a lifetime of 50 milliseconds is higher than 47 mN/m. The dye ink contains at least water, a surfactant and a dye. An ink set is provided which can obtain images having a high image density and a superior bleeding resistance without regard to the types of recording mediums.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 13, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satomi Yanagimachi, Kumiko Mafune, Mikio Sanada, Kenji Moribe, Tomonari Watanabe, Daiji Okamura, Hideki Yamakami, Satoshi Kudo, Fumiharu Nakamura
  • Publication number: 20080280043
    Abstract: An ink set is provided which can suppress bleeding irrespective of the type of recording medium. The ink set includes a plurality of aqueous inks each containing a dye, and has at least a first aqueous ink containing a dye, wherein the difference between the dynamic surface tension of the first aqueous ink at a lifetime of 50 milliseconds and the dynamic surface tension of the first aqueous ink at a lifetime of 500 milliseconds is 7 mN/m or more; and, between the first aqueous ink and at least one type of aqueous ink except the first aqueous ink included in the ink set, dynamic surface tension ?a (mN/m) of an ink A having relatively higher lightness at a lifetime of 500 milliseconds and dynamic surface tension ?b (mN/m) of an ink B having relatively lower lightness at a lifetime of 500 milliseconds satisfy ?5?(?a??b)?3.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 13, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenji Moribe, Satoshi Kudo, Mikio Sanada, Hideki Yamakami
  • Publication number: 20080252698
    Abstract: An ink jet recording head includes a element substrate; a plurality of ejection outlets, provided on the element substrate, for ejecting ink in a direction perpendicular to the element substrate; and a nozzle formation member having a plurality of ink flow paths which are in fluid communication with the ejection outlets, respectively; wherein the ink flow paths are arranged at a density higher than 1200 dpi in an arranging direction of the ejection outlets; wherein widths of flow passage walls forming the ink flow paths are smaller than heights of the ink flow paths and are smaller than widths of the ink flow paths.
    Type: Application
    Filed: August 7, 2007
    Publication date: October 16, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kiyomitsu Kudo, Yukuo Yamaguchi, Genji Inada, Mikiya Umeyama, Masaru Iketani, Satoshi Kudo, Yuichiro Akama, Chiaki Muraoka, Satoshi Kimura
  • Patent number: 7431438
    Abstract: An ink cartridge which is detachably mountable to a liquid ejection type recording device including a liquid ejecting head for ejecting liquid onto a recording material while scanning the recording material in a direction crossing with a feeding direction of the recording material, and a recovery unit for sucking the liquid through a nozzle of the liquid ejecting head. The ink cartridge includes a receiving portion for receiving the liquid discharged from the liquid ejecting head by the recovery unit; a liquid containing portion for accommodating the liquid to be supplied to the liquid ejecting head; and a connecting portion for connecting the receiving portion and the suction recovery unit, wherein the connecting portion is disposed at a position upstream of a front end surface portion of the ink cartridge with respect to an inserting direction in which the ink cartridge is inserted into the liquid ejection type recording device.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: October 7, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Tsujimoto, Junji Shimoda, Kiyomitsu Kudo, Satoshi Kudo, Toru Suzuki