Patents by Inventor Katsuhito Kato

Katsuhito Kato 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: 9102813
    Abstract: [Problems to be Solved] To provide fluoroaluminosilicate glass powder enabling to improve acid resistance of dental glass ionomor cement and a production method thereof. [Solution] A lanthanum compound eluted in the presence of polycarboxylic acid and water exists only in a surface layer of a fluoroaluminosilicate glass powder. An amount of the fluoroaluminosilicate glass powder is preferably 1 to 5% by weight in terms of oxide. The fluoroaluminosilicate glass powder is produced by mixing an aqueous solution of a lanthanum compound and a fluoroaluminosilicate glass powder not containing lanthanum, and heating them. The aqueous solution of lanthanum compound is an aqueous solution of a water solvable lanthanum compound, preferably an aqueous solution of lanthanum nitrite and/or an aqueous solution of lanthanum chloride.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: August 11, 2015
    Assignee: GC CORPORATION
    Inventors: Yusuke Hokii, Katsuhito Kato, Futoshi Fusejima
  • Publication number: 20140090580
    Abstract: [Problems to be Solved] To provide fluoroaluminosilicate glass powder enabling to improve acid resistance of dental glass ionomor cement and a production method thereof. [Solution] A lanthanum compound eluted in the presence of polycarboxylic acid and water exists only in a surface layer of a fluoroaluminosilicate glass powder. An amount of the fluoroaluminosilicate glass powder is preferably 1 to 5% by weight in terms of oxide. The fluoroaluminosilicate glass powder is produced by mixing an aqueous solution of a lanthanum compound and a fluoroaluminosilicate glass powder not containing lanthanum, and heating them. The aqueous solution of lanthanum compound is an aqueous solution of a water solvable lanthanum compound, preferably an aqueous solution of lanthanum nitrite and/or an aqueous solution of lanthanum chloride.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 3, 2014
    Applicant: GC CORPORATION
    Inventors: Yusuke HOKII, Katsuhito KATO, Futoshi FUSEJIMA
  • Publication number: 20100063176
    Abstract: To provide a paste-type dental cement capable of being used properly for temporary adhering or temporary filling, a paste-type dental cement, which comprises a phosphoric acid and/or a polymer of ?-? unsaturated carboxylic acid, an oxide powder capable of reacting with the phosphoric acid and/or the polymer of ?-? unsaturated carboxylic acid, and a water, further includes a liquid not reacting with the oxide powder.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 11, 2010
    Applicant: GC Corporation
    Inventors: Katsuhito KATO, Hideki Yarimizu
  • Patent number: 7537209
    Abstract: The sheet stacking-aligning apparatus or the sheet processing apparatus includes a substantially horizontal stacking tray, a rear end aligning unit for aligning a rear end of a sheet bundle on the stacking tray, and a control unit for controlling an operation of the rear end aligning unit for aligning the sheet bundle when it is in an upstream position of the stacking tray, and the stacking tray is provided substantially horizontally. It is thus made possible to increase the stacking space, thereby increasing the number of stackable sheets and to achieve the alignment of the rear end of the sheet bundle with a simple configuration, thereby improving the stacking-aligning property of the sheet bundle on the stacking tray.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: May 26, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuhito Kato, Daisaku Kamiya, Daiju Yoshino
  • Publication number: 20070210510
    Abstract: The sheet stacking-aligning apparatus or the sheet processing apparatus includes a substantially horizontal stacking tray, a rear end aligning unit for aligning a rear end of a sheet bundle on the stacking tray, and a control unit for controlling an operation of the rear end aligning unit for aligning the sheet bundle when it is in an upstream position of the stacking tray, and the stacking tray is provided substantially horizontally. It is thus made possible to increase the stacking space, thereby increasing the number of stackable sheets and to achieve the alignment of the rear end of the sheet bundle with a simple configuration, thereby improving the stacking-aligning property of the sheet bundle on the stacking tray.
    Type: Application
    Filed: May 15, 2007
    Publication date: September 13, 2007
    Applicant: Canon Kabushiki Kaisha
    Inventors: Katsuhito Kato, Daisaku Kamiya, Daiju Yoshino
  • Patent number: 7264237
    Abstract: The sheet stacking-aligning apparatus or the sheet processing apparatus includes a substantially horizontal stacking tray, a rear end aligning unit for aligning a rear end of a sheet bundle on the stacking tray, and a control unit for controlling an operation of the rear end aligning unit for aligning the sheet bundle when it is in an upstream position of the stacking tray, and the stacking tray is provided substantially horizontally. It is thus made possible to increase the stacking space, thereby increasing the number of stackable sheets and to achieve the alignment of the rear end of the sheet bundle with a simple configuration, thereby improving the stacking-aligning property of the sheet bundle on the stacking tray.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: September 4, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuhito Kato, Daisaku Kamiya, Daiju Yoshino
  • Publication number: 20070072957
    Abstract: To give high mechanical strength, particularly compression strength, and excellent operationality in a two-paste system, a dental paste glass ionomer cement composition comprises a first paste comprising an ?-? unsaturated carboxylic acid polymer, a filler that is not reacted with the ?-? unsaturated carboxylic acid polymer and is not in a monodisperse state in water, a silica aqueous sol containing colloidal silica having an average particle diameter of 1 to 100 nm dispersed in a monodisperse state in water to an SiO2 concentration of 1 to 50% by weight, and water, in prescribed amounts respectively, and a second paste containing fluoroalumino silicate glass powder in a prescribed amount, where the second paste sometimes contains a thickening agent comprising a water soluble polymer material and water, or a polymerizable monomer having no acid group.
    Type: Application
    Filed: September 18, 2006
    Publication date: March 29, 2007
    Applicant: GC Corporation
    Inventors: Tsuyoshi Noguchi, Katsuhito Kato, Hisashi Nakaseko
  • Patent number: 7120383
    Abstract: An image forming apparatus has an image reading portion for reading an image of an original and which is disposed in an upper part of the apparatus, an image forming portion for forming an image on a sheet and which is disposed below the image reading portion with a space portion between the image reading portion and the image forming portion, and a sheet delivery portion disposed in the space portion. There is a taper formed on an edge portion of a bottom of the image reading portion defining the space portion so that a sheet treating apparatus for performing treatment such as sorting, alignment, or stapling of sheets on which the images are formed, is mounted in the space portion.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: October 10, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Sato, Hiroaki Takagishi, Katsuhito Kato, Daisaku Kamiya
  • Patent number: 7107006
    Abstract: A sheet treating apparatus is mountable in a space portion of an image forming apparatus including an image-forming portion for forming an image on a sheet and an image-reading portion for reading an image of an original. The image-reading portion is disposed above the image-forming portion. The sheet is delivered in the space portion formed between the image-forming portion and the image-reading portion. The sheet treating apparatus includes a connection path unit to be connected with a sheet delivery path for delivering the sheet from the image-forming portion, which connection path unit is mounted in the space portion from the outside of a side surface of the main body of the image forming apparatus, and a sheet-treating unit for performing a treatment of the sheet transported from the connection path unit, which sheet-treating unit is mounted in the space portion from the front side of the main body of the image forming apparatus.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: September 12, 2006
    Assignee: Canon Kabushi Kaisha
    Inventors: Akihiro Sato, Hiroaki Takagishi, Katsuhito Kato, Daisaku Kamiya
  • Patent number: 7050752
    Abstract: A sheet treating apparatus is mountable in a space portion of an image forming apparatus including an image-forming portion for forming an image on a sheet and an image-reading portion for reading an image of an original. The image-reading portion is disposed above the image-forming portion. The sheet is delivered in the space portion formed between the image-forming portion and the image-reading portion. The sheet treating apparatus includes a connection path unit to be connected with a sheet delivery path for delivering the sheet from the image-forming portion, which connection path unit is mounted in the space portion from the outside of a side surface of the main body of the image forming apparatus, and a sheet-treating unit for performing a treatment of the sheet transported from the connection path unit, which sheet-treating unit is mounted in the space portion from the front side of the main body of the image forming apparatus.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: May 23, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Sato, Hiroaki Takagishi, Katsuhito Kato, Daisaku Kamiya
  • Publication number: 20060076726
    Abstract: The sheet stacking-aligning apparatus or the sheet processing apparatus includes a substantially horizontal stacking tray, a rear end aligning unit for aligning a rear end of a sheet bundle on the stacking tray, and a control unit for controlling an operation of the rear end aligning unit for aligning the sheet bundle when it is in an upstream position of the stacking tray, and the stacking tray is provided substantially horizontally. It is thus made possible to increase the stacking space, thereby increasing the number of stackable sheets and to achieve the alignment of the rear end of the sheet bundle with a simple configuration, thereby improving the stacking-aligning property of the sheet bundle on the stacking tray.
    Type: Application
    Filed: November 29, 2005
    Publication date: April 13, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventors: Katsuhito Kato, Daisaku Kamiya, Daiju Yoshino
  • Publication number: 20060051147
    Abstract: A sheet treating apparatus is mountable in a space portion of an image forming apparatus including an image-forming portion for forming an image on a sheet and an image-reading portion for reading an image of an original. The image-reading portion is disposed above the image-forming portion. The sheet is delivered in the space portion formed between the image-forming portion and the image-reading portion. The sheet treating apparatus includes a connection path unit to be connected with a sheet delivery path for delivering the sheet from the image-forming portion, which connection path unit is mounted in the space portion from the outside of a side surface of the main body of the image forming apparatus, and a sheet-treating unit for performing a treatment of the sheet transported from the connection path unit, which sheet-treating unit is mounted in the space portion from the front side of the main body of the image forming apparatus.
    Type: Application
    Filed: October 28, 2005
    Publication date: March 9, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akihiro Sato, Hiroaki Takagishi, Katsuhito Kato, Daisaku Kamiya
  • Patent number: 6994339
    Abstract: The sheet stacking-aligning apparatus or the sheet processing apparatus includes a substantially horizontal stacking tray, a rear end aligning unit for aligning a rear end of a sheet bundle on the stacking tray, and a control unit for controlling an operation of the rear end aligning unit for aligning the sheet bundle when it is in an upstream position of the stacking tray, and the stacking tray is provided substantially horizontally. It is thus made possible to increase the stacking space, thereby increasing the number of stackable sheets and to achieve the alignment of the rear end of the sheet bundle with a simple configuration, thereby improving the stacking-aligning property of the sheet bundle on the stacking tray.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: February 7, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuhito Kato, Daisaku Kamiya, Daiju Yoshino
  • Publication number: 20040096254
    Abstract: A sheet treating apparatus is mountable in a space portion of an image forming apparatus including an image-forming portion for forming an image on a sheet and an image-reading portion for reading an image of an original. The image-reading portion is disposed above the image-forming portion. The sheet is delivered in the space portion formed between the image-forming portion and the image-reading portion. The sheet treating apparatus includes a connection path unit to be connected with a sheet delivery path for delivering the sheet from the image-forming portion, which connection path unit is mounted in the space portion from the outside of a side surface of the main body of the image forming apparatus, and a sheet-treating unit for performing a treatment of the sheet transported from the connection path unit, which sheet-treating unit is mounted in the space portion from the front side of the main body of the image forming apparatus.
    Type: Application
    Filed: July 8, 2003
    Publication date: May 20, 2004
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akihiro Sato, Hiroaki Takagishi, Katsuhito Kato, Daisaku Kamiya
  • Publication number: 20030214090
    Abstract: The sheet stacking-aligning apparatus or the sheet processing apparatus includes a substantially horizontal stacking tray, a rear end aligning unit for aligning a rear end of a sheet bundle on the stacking tray, and a control unit for controlling an operation of the rear end aligning unit for aligning the sheet bundle when it is in an upstream position of the stacking tray, and the stacking tray is provided substantially horizontally. It is thus made possible to increase the stacking space, thereby increasing the number of stackable sheets and to achieve the alignment of the rear end of the sheet bundle with a simple configuration, thereby improving the stacking-aligning property of the sheet bundle on the stacking tray.
    Type: Application
    Filed: May 6, 2003
    Publication date: November 20, 2003
    Applicant: Canon Kabushiki Kaisha
    Inventors: Katsuhito Kato, Daisaku Kamiya, Daiju Yoshino
  • Patent number: 6647243
    Abstract: A sheet treating apparatus is mountable in a space portion of an image forming apparatus including an image-forming portion for forming an image on a sheet and an image-reading portion for reading an image of an original. The image-reading portion is disposed above the image-forming portion. The sheet is delivered in the space portion formed between the image-forming portion and the image-reading portion. The sheet treating apparatus includes a connection path unit to be connected with a sheet delivery path for delivering the sheet from the image-forming portion, which connection path unit is mounted in the space portion from the outside of a side surface of the main body of the image forming apparatus, and a sheet-treating unit for performing a treatment of the sheet transported from the connection path unit, which sheet-treating unit is mounted in the space portion from the front side of the main body of the image forming apparatus.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: November 11, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Sato, Hiroaki Takagishi, Katsuhito Kato, Daisaku Kamiya
  • Patent number: 6471429
    Abstract: Sheet processing apparatus including a first tray for stacking sheets received from an image forming apparatus, a discharge unit for discharging the sheets from the first tray in a bundle, a second tray for stacking the sheets discharged from the first tray, a discriminating unit for discriminating an attribute of a sheet to be stacked on the first tray, and a controller for selectively controlling whether or not to discharge sheets by the discharge unit in accordance with a discrimination of the discriminating unit.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: October 29, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshinori Isobe, Katsuhito Kato, Yuzoh Matsumoto
  • Patent number: 6398214
    Abstract: A sheet handling device has a sheet-aligning rotary member with an ejection device for ejecting sheets into a sheet stacking device, a sheet end stopper for holding the end of the sheet stacked in the sheet stacking device; and at least one rotary member for aligning the sheets ejected in the sheet stacking device with the sheet end stopper. The rotary member has an arc-shape outer peripheral surface around a portion of a circumference of said at least one rotary member.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: June 4, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junichi Moteki, Yoshinori Isobe, Katsuhito Kato, Yoshimi Mizuta, Takeshi Yamada
  • Publication number: 20020044810
    Abstract: A sheet treating apparatus is mountable in a space portion of an image forming apparatus including an image-forming portion for forming an image on a sheet and an image-reading portion for reading an image of an original. The image-reading portion is disposed above the image-forming portion. The sheet is delivered in the space portion formed between the image-forming portion and the image-reading portion. The sheet treating apparatus includes a connection path unit to be connected with a sheet delivery path for delivering the sheet from the image-forming portion, which connection path unit is mounted in the space portion from the outside of a side surface of the main body of the image forming apparatus, and a sheet-treating unit for performing a treatment of the sheet transported from the connection path unit, which sheet-treating unit is mounted in the space portion from the front side of the main body of the image forming apparatus.
    Type: Application
    Filed: October 11, 2001
    Publication date: April 18, 2002
    Inventors: Akihiro Sato, Hiroaki Takagishi, Katsuhito Kato, Daisaku Kamiya
  • Patent number: 6374077
    Abstract: An image forming apparatus has an image forming section for forming images on sheets, including a sheet processing apparatus disposed to be piled up with a sheet conveying section and the image forming section in a housing of the image forming apparatus. The sheet processing apparatus aligns and binds sheets on which images are formed.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: April 16, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuaki Hirai, Masaaki Sato, Katsuhito Kato, Koji Fukuyama