Patents by Inventor Tokuo Tsuura

Tokuo Tsuura 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: 8656982
    Abstract: The present invention arranges the part for removing impurities from a molten metal containing a filter holder constituted of a structure containing an organic fiber, an inorganic fiber and thermosetting resin and a heat-resistant filter in the runner of the mold.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: February 25, 2014
    Assignee: Kao Corporation
    Inventors: Shigeaki Takashina, Tokuo Tsuura, Tomoaki Kawabata, Daisuke Barada
  • Publication number: 20120138255
    Abstract: The present invention arranges the part for removing impurities from a molten metal containing a filter holder constituted of a structure containing an organic fiber, an inorganic fiber and thermosetting resin and a heat-resistant filter in the runner of the mold.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 7, 2012
    Inventors: Shigeaki TAKASHINA, Tokuo TSUURA, Tomoaki KAWABATA, Daisuke BARADA
  • Patent number: 8118974
    Abstract: The invention relates to a structure for producing castings, which comprises an organic fiber, carbon fiber, inorganic particles, and at least one kind of thermosetting resin selected from the group consisting of phenol resin, epoxy resin and furan resin.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: February 21, 2012
    Assignee: Kao Corporation
    Inventors: Shigeo Nakai, Tokuo Tsuura, Yoshimasa Takagi, Tadashi Kusube, Akira Yoshida, Yoshiaki Ban
  • Patent number: 7815774
    Abstract: An element made by papermaking for use in the production of a casting cast which comprises an organic fiber, an inorganic fiber, and a binder. The contents of the organic fiber, the inorganic fiber, and the binder are preferably 10 to 70 parts by weight, 1 to 80 parts by weight, and 10 to 85 parts by weight, respectively. The binder is preferably an organic binder. The organic fiber is preferably pulp fiber.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: October 19, 2010
    Assignee: Kao Corporation
    Inventors: Tokuo Tsuura, Hiroaki Kobayashi, Yoshimasa Takagi, Shigeo Nakai, Tokihito Sono
  • Publication number: 20100096099
    Abstract: The present invention arranges the part for removing impurities from a molten metal containing a filter holder constituted of a structure containing an organic fiber, an inorganic fiber and thermosetting resin and a heat-resistant filter in the runner of the mold.
    Type: Application
    Filed: December 12, 2007
    Publication date: April 22, 2010
    Applicant: Kao Corporation
    Inventors: Shigeaki Takashina, Tokuo Tsuura, Tomoaki Kawabata, Daisuke Barada
  • Patent number: 7503999
    Abstract: A part for casting obtained by converting base paper for paper tubing into a tube and containing an organic fiber, an inorganic fiber, and a binder. The part is preferably obtained by winding the base paper into tubing. The part preferably contains 10 to 70 parts by weight of the organic fiber, 1 to 80 parts by weight of the inorganic fiber, 10 to 85 parts by weight of the binder. The organic fiber is preferably pulp fiber.
    Type: Grant
    Filed: November 11, 2003
    Date of Patent: March 17, 2009
    Assignee: Kao Corporation
    Inventors: Tokuo Tsuura, Hiroaki Kobayashi, Yoshimasa Takagi, Shigeo Nakai, Tokihito Sono
  • Patent number: 7370788
    Abstract: A molded article (10) made predominantly of pulp and comprising a bottom portion (13) and a body portion (12), wherein the angle ? between the outer surface of a side wall of the body portion (12) and the ground contact plane (B) of the bottom portion (13) is 85° or greater, and the height of the body portion (12) is 50 mm or more.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: May 13, 2008
    Assignee: Kao Corporation
    Inventors: Kenichi Otani, Yoshiaki Kumamoto, Koichi Sagara, Shinji Kodama, Minoru Goto, Susumu Fujinami, Tokuo Tsuura, Shinji Otakura, Takehiko Tojo, Yukiya Sato, Masataka Ishikawa, Shingo Odajima, Masanori Takita
  • Publication number: 20080105401
    Abstract: The invention relates to a structure for producing castings, which comprises an organic fiber, carbon fiber, inorganic particles, and at least one kind of thermosetting resin selected from the group consisting of phenol resin, epoxy resin and furan resin.
    Type: Application
    Filed: June 10, 2004
    Publication date: May 8, 2008
    Applicant: Kao Corporation
    Inventors: Shigeo Nakai, Tokuo Tsuura, Yoshimasa Takagi, Tadashi Kusube, Akira Yoshida, Yoshiaki Ban
  • Patent number: 7297232
    Abstract: A method for producing a fiber molded article comprising the step of transferring a fiber molded article 10 formed in a papermaking mold 2 composed of splits 20 and 20? to a split 30? of a drying mold 3, in which the papermaking mold 2 is once opened while attracting the fiber molded article 10 to the inner surface of the split 20? by suction to separate the fiber molded article 10 from the inner surface of the split 20, the papermaking mold 2 is closed, the suction by the split 20? is stopped, the papermaking mold 2 is opened again while attracting the fiber molded article 10 to the inner surface of the split 20 to separate the fiber molded article 10 from the split 20?, the split 20 is joined with the split 30?, the fiber molded article 10 is attracted to the inner surface of the split 30? by suction, and the fiber molded article 10 is separated from the split 20.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: November 20, 2007
    Assignee: Kao Corporation
    Inventors: Tokuo Tsuura, Masayuki Osaki
  • Patent number: 7067041
    Abstract: A method of producing pulp moldings having a paper-making process comprising the steps of assembling split mold halves (11, 12) having suction passageways (14) to form a paper-making mold (10), feeding pulp slurry of predetermined set feed concentration into the cavity (13) in the paper-making mold (10), and sucking the pulp slurry through the suction passageways (14) to form a pulp layer (15) on the inner surface of the paper-making mold (10), wherein the concentration of the pulp slurry in the cavity (13) in the initial and/or final period of formation of the pulp layer (15) in the paper-making process is lower than the above-mentioned set feed concentration of the pulp slurry.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: June 27, 2006
    Assignee: Kao Corporation
    Inventors: Tokuo Tsuura, Hiroaki Kobayashi, Kenichi Otani, Masayuki Osaki, Shingo Odajima
  • Publication number: 20060130987
    Abstract: A part for casting obtained by converting base paper for paper tubing into a tube and containing an organic fiber, an inorganic fiber, and a binder. The part is preferably obtained by winding the base paper into tubing. The part preferably contains 10 to 70 parts by weight of the organic fiber, 1 to 80 parts by weight of the inorganic fiber, 10 to 85 parts by weight of the binder. The organic fiber is preferably pulp fiber.
    Type: Application
    Filed: November 11, 2003
    Publication date: June 22, 2006
    Applicant: Kao Corporation
    Inventors: Tokuo Tsuura, Hiroaki Kobayashi, Yoshimasa Takagi, Shigeo Nakai, Tokihito Sono
  • Patent number: 6994772
    Abstract: Disclosed is a method of producing a fiber-molded hollow article by using a papermaking mold (2) composed of splits (21, 22) which are joined to form a cavity (20) having two openings (20a, 20b) connecting with the outside and an expandable pressing member (3) adapted to be placed in the cavity (20). The method comprises the steps of immersing each of the splits (21, 22) before being joined in a fiber slurry to form a fiber preform (10a, 10b), joining the splits (21, 22) each having the fiber preform (10a, 10b) formed thereon while placing the pressing member (3) in the cavity (20), and molding and dewatering a molded article (1) in the papermaking mold (2).
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: February 7, 2006
    Assignee: Kao Corporation
    Inventors: Hiromichi Kimbara, Koichi Sagara, Masayuki Osaki, Tokuo Tsuura
  • Patent number: 6899793
    Abstract: A method of producing a pulp molded article. The method feeds a pulp slurry to a cavity of a papermaking mold having a prescribed cavity shape to form a pulp preform including a main part having an opening and a separable part having a flange and connected to an edge of the opening. A pressing member is inserted into the preform, the pressing member is expanded to press the preform toward the papermaking surface, the preform is removed from the papermaking mold, and then the preform is cut at a joint between the separable part and the main part.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: May 31, 2005
    Assignee: Kao Corporation
    Inventors: Akira Nonomura, Yasushi Yamada, Tokuo Tsuura, Hiroaki Kobayashi, Kenichi Otani
  • Patent number: 6860461
    Abstract: A papermaking mold which includes a papermaking part of a prescribed shape, a peripheral part extending outward from the peripheral edge of the papermaking part, and a net covering the papermaking part and at least part of the peripheral part. A fixing member is disposed on the periphery of the net, and the fixing member is fixed to the peripheral part to fix the net by the fixing member.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: March 1, 2005
    Assignee: Kao Corporation
    Inventors: Kenichi Otani, Yoshiaki Kumamoto, Tokuo Tsuura, Minoru Goto, Keiji Eto
  • Patent number: 6841041
    Abstract: A method for producing a pulp molded article (7) comprising the steps of supplying a pulp slurry into the cavity (1) of a mold (10) composed of a set of splits (3 and 4), the set of splits (3 and 4) being assembled together to form the cavity (1) with a prescribed configuration, to form a pulp deposited body (5), feeding a fluid into the cavity (1) to press the pulp deposited body (5) onto the inner wall of the cavity (1) for dewatering.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: January 11, 2005
    Assignee: Kao Corporation
    Inventors: Yoshiaki Kumamoto, Kenichi Otani, Shinji Otakura, Tokuo Tsuura, Masataka Ishikawa, Toshiyuki Suga, Akira Nonomura
  • Patent number: 6830658
    Abstract: A method for producing a pulp molded article (7) comprising the steps of supplying a pulp slurry into the cavity (1) of a mold (10) composed of a set of splits (3 and 4), the set of splits (3 and 4) being assembled together to form the cavity (1) with a prescribed configuration, to form a pulp deposited body (5), feeding a fluid into the cavity (1) to press the pulp deposited body (5) onto the inner wall of the cavity (1) for dewatering.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: December 14, 2004
    Assignee: Kao Corporation
    Inventors: Yoshiaki Kumamoto, Kenichi Otani, Shinji Otakura, Tokuo Tsuura, Masataka Ishikawa, Toshiyuki Suga, Akira Nonomura
  • Publication number: 20040069429
    Abstract: An element made by papermaking for use in the production of a die casting which comprises an organic fiber, an inorganic fiber, and a binder. The contents of the organic fiber, the inorganic fiber, and the binder are preferably 10 to 70 parts by weight, 1 to 80 parts by weight, and 10 to 85 parts by weight, respectively. The binder is preferably an organic binder. The organic fiber is preferably pulp fiber.
    Type: Application
    Filed: August 20, 2003
    Publication date: April 15, 2004
    Inventors: Tokuo Tsuura, Hiroaki Kobayashi, Yoshimasa Takagi, Shigeo Nakai, Tokihito Sono
  • Publication number: 20040041305
    Abstract: A method for producing a fiber molded article comprising the step of transferring a fiber molded article 10 formed in a papermaking mold 2 composed of splits 20 and 20′ to a split 30′ of a drying mold 3, in which the papermaking mold 2 is once opened while attracting the fiber molded article 10 to the inner surface of the split 20′ by suction to separate the fiber molded article 10 from the inner surface of the split 20, the papermaking mold 2 is closed, the suction by the split 20′ is stopped, the papermaking mold 2 is opened again while attracting the fiber molded article 10 to the inner surface of the split 20 to separate the fiber molded article 10 from the split 20′, the split 20 is joined with the split 30′, the fiber molded article 10 is attracted to the inner surface of the split 30′ by suction, and the fiber molded article 10 is separated from the split 20.
    Type: Application
    Filed: August 13, 2003
    Publication date: March 4, 2004
    Inventors: Tokuo Tsuura, Masayuki Osaki
  • Publication number: 20040011489
    Abstract: Disclosed is a method of producing a fiber-molded hollow article by using a papermaking mold (2) composed of splits (21, 22) which are joined to form a cavity (20) having two openings (20a, 20b) connecting with the outside and an expandable pressing member (3) adapted to be placed in the cavity (20). The method comprises the steps of immersing each of the splits (21, 22) before being joined in a fiber slurry to form a fiber preform (10a, 10b), joining the splits (21, 22) each having the fiber preform (10a, 10b) formed thereon while placing the pressing member (3) in the cavity (20), and molding and dewatering a molded article (1) in the papermaking mold (2).
    Type: Application
    Filed: July 18, 2003
    Publication date: January 22, 2004
    Inventors: Hiromichi Kimbara, Koichi Sagara, Masayuki Osaki, Tokuo Tsuura
  • Patent number: 6645348
    Abstract: Pulp deposited bodies (7 and 8) are formed on the surfaces (2a and 3a) of a set of splits (2 and 3) of a papermaking mold, each split having a plurality of interconnecting holes connecting the outside to the inside thereof, and the splits (2 and 3) are mated to join the pulp deposited bodies (7 and 8).
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: November 11, 2003
    Assignee: Kao Corporation
    Inventors: Yoshiaki Kumamoto, Shinji Otakura, Kenichi Otani, Shingo Odajima, Tokuo Tsuura