Patents by Inventor Naoki Itou

Naoki Itou 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: 20100273825
    Abstract: The present invention relates to the provision of a stable solid pharmaceutical composition containing an amorphous form of solifenacin or a pharmaceutically acceptable salt thereof and capable of inhibiting decomposition accompanied by long-term storage, to provide the medical field with a formulation of solifenacin or a pharmaceutically acceptable salt thereof. More particularly, the present invention relates to a solid pharmaceutical composition, comprising an amorphous form of solifenacin or a pharmaceutically acceptable salt thereof, and one stabilizer for amorphous solifenacin or two or more stabilizers for amorphous solifenacin, selected from the group consisting of citric acid or a pharmaceutically acceptable salt (excluding a calcium salt) thereof, sodium pyrosulfite, and a pharmaceutically acceptable salt of ethylenediaminetetraacetic acid.
    Type: Application
    Filed: March 29, 2010
    Publication date: October 28, 2010
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Yuko WAKO, Keiichi YOSHIHARA, Naoki ITOU
  • Patent number: 7575762
    Abstract: The present invention relates to a composition comprising sustained-release fine particles, characterized in that it contains sustained-release fine particles that can be used in quick-disintegrating tablets in the buccal cavity, one or more fillers selected from the group consisting of sugars or sugar alcohols, and one or more binders for quick-disintegrating tablets in the buccal cavity selected from the group consisting of sugars of high moldability and water-soluble polymer substances, and in that the sustained-release fine particles are granulated with filler and binder for quick-disintegrating tablets in the buccal cavity, and a manufacturing method thereof.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: August 18, 2009
    Assignee: Astellas Pharma Inc.
    Inventors: Tatsuki Shinoda, Atsushi Maeda, Naoki Itou, Takao Mizumoto, Shigeru Yamazaki, Yuuki Takaishi
  • Patent number: 7288587
    Abstract: The poly(phenylene oxide) resin composition of the invention is a poly(phenylene oxide) resin composition containing poly(phenylene oxide) and triallyl isocyanurate, wherein the poly(phenylene oxide) has a number average molecular weight in a range from 2,000 to 12,000 and the IPN structure can be formed in a cured product of the poly(phenylene oxide) and triallyl isocyanurate to provide a high heat resistance, and at the same time by using a poly(phenylene oxide) with a relatively low molecular weight, the fluidity of the melt resin can be made desirable at the time of molding to result in high molding properties.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: October 30, 2007
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Eiitirou Saitou, Kiyotaka Komori, Naoki Itou
  • Publication number: 20070202168
    Abstract: The present invention relates to a composition comprising sustained-release fine particles, characterized in that it contains sustained-release fine particles that can be used in quick-disintegrating tablets in the buccal cavity, one or more fillers selected from the group consisting of sugars or sugar alcohols, and one or more binders for quick-disintegrating tablets in the buccal cavity selected from the group consisting of sugars of high moldability and water-soluble polymer substances, and in that the sustained-release fine particles are granulated with filler and binder for quick-disintegrating tablets in the buccal cavity, and a manufacturing method thereof.
    Type: Application
    Filed: May 2, 2007
    Publication date: August 30, 2007
    Applicant: Astellas Pharma Inc.
    Inventors: Tatsuki Shinoda, Atsushi Maeda, Naoki Itou, Takao Mizumoto, Shigeru Yamazaki, Yuuki Takaishi
  • Patent number: 7255876
    Abstract: The present invention relates to a composition comprising sustained-release fine particles, characterized in that it contains sustained-release fine particles that can be used in quick-disintegrating tablets in the buccal cavity, one or more fillers selected from the group consisting of sugars or sugar alcohols, and one or more binders for quick-disintegrating tablets in the buccal cavity selected from the group consisting of sugars of high moldability and water-soluble polymer substances, and in that the sustained-release fine particles are granulated with filler and binder for quick-disintegrating tablets in the buccal cavity, and a manufacturing method thereof.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: August 14, 2007
    Assignee: Astellas Pharma, Inc.
    Inventors: Tatsuki Shinoda, Atsushi Maeda, Naoki Itou, Takao Mizumoto, Shigeru Yamazaki, Yuuki Takaishi
  • Patent number: 7103273
    Abstract: A worm gear is provided on a rotating shaft of an AF motor. A first supporting cylinder includes a gear portion and a receiving portion. A wheel gear, which is in engagement with the worm gear, is formed on an outer surface of the gear portion. A slit is formed at the receiving portion. A second supporting cylinder includes a supported portion which is placed in the receiving portion of the first supporting cylinder, and a receiving portion which supports an AF coupler. A gear is in engagement with a portion which connects the supported portion and the receiving portion of the 2nd supporting cylinder. A clutch spring is wound around the supported portion, being in contact with the outer surface of the supported portion. Both ends of the clutch spring cross each other and are in engagement with a pair of walls, of the slit, which are parallel to an axis of the receiving portion.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: September 5, 2006
    Assignee: PENTAX Corporation
    Inventors: Tetsuo Hosokawa, Takuya Hasegawa, Naoki Itou
  • Publication number: 20050105899
    Abstract: A worm gear is provided on a rotating shaft of an AF motor. A first supporting cylinder includes a gear portion and a receiving portion. A wheel gear, which is in engagement with the worm gear, is formed on an outer surface of the gear portion. A slit is formed at the receiving portion. A second supporting cylinder includes a supported portion which is placed in the receiving portion of the first supporting cylinder, and a receiving portion which supports an AF coupler. A gear is in engagement with a portion which connects the supported portion and the receiving portion of the 2nd supporting cylinder. A clutch spring is wound around the supported portion, being in contact with the outer surface of the supported portion. Both ends of the clutch spring cross each other and are in engagement with a pair of walls, of the slit, which are parallel to an axis of the receiving portion.
    Type: Application
    Filed: February 17, 2004
    Publication date: May 19, 2005
    Applicant: PENTAX Corporation
    Inventors: Tetsuo Hosokawa, Takuya Hasegawa, Naoki Itou
  • Publication number: 20040132925
    Abstract: The poly(phenylene oxide) resin composition of the invention is a poly(phenylene oxide) resin composition containing poly(phenylene oxide) and triallyl isocyanurate, wherein the poly(phenylene oxide) has a number average molecular weight in a range from 2,000 to 12,000 and the IPN structure can be formed in a cured product of the poly(phenylene oxide) and triallyl isocyanurate to provide a high heat resistance, and at the same time by using a poly(phenylene oxide) with a relatively low molecular weight, the fluidity of the melt resin can be made desirable at the time of molding to result in high molding properties.
    Type: Application
    Filed: February 11, 2004
    Publication date: July 8, 2004
    Inventors: Eiitirou Saitou, Kiyotaka Komori, Naoki Itou
  • Publication number: 20030147948
    Abstract: The present invention relates to a composition comprising sustained-release fine particles, characterized in that it contains sustained-release fine particles that can be used in quick-disintegrating tablets in the buccal cavity, one or more fillers selected from the group consisting of sugars or sugar alcohols, and one or more binders for quick-disintegrating tablets in the buccal cavity selected from the group consisting of sugars of high moldability and water-soluble polymer substances, and in that the sustained-release fine particles are granulated with filler and binder for quick-disintegrating tablets in the buccal cavity, and a manufacturing method thereof.
    Type: Application
    Filed: July 25, 2002
    Publication date: August 7, 2003
    Applicant: Yamanouchi Pharmaceutical Co., Ltd
    Inventors: Tatsuki Shinoda, Atsushi Maeda, Naoki Itou, Takao Mizumoto, Shigeru Yamazaki, Yuuki Takaishi