Patents by Inventor Hirotaka Kawasaki

Hirotaka Kawasaki 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: 11952042
    Abstract: A lower vehicle-body structure of a vehicle may include: a floor panel; a side sill; and a frame member that extends in the front-rear direction on the vehicle-width-direction inner side of the side sill and includes a front-rear extended portion that is in abutment against the side sill on the vehicle-width-direction inner side and extends in the vehicle front-rear direction along the side sill. The front-rear extended portion may include: a bottom face portion; an inner wall portion; and an inner-side flange that extends to the vehicle-width-direction inner side from a distal end portion of the inner wall portion and is joined to the floor panel. Deformation facilitating facilitators that facilitate deformation of the bottom face portion in the vehicle width direction when a collision load in the vehicle width direction is input may be formed in the bottom face portion.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: April 9, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Mikado Kawasaki, Hirotaka Natsume, Keisuke Ebisumoto, Akiko Nakamoto, Daisuke Tsuji, Kento Otsuka
  • Patent number: 11912964
    Abstract: The present invention is a contact lens treatment solution containing the following copolymer A and copolymer B in a ratio of A/B=1000/1 to 2/1 (by weight). According to the present invention, there can be provided a contact lens treatment solution capable of removing dirt having adhered to contact lens surfaces and capable of imparting persisting hydrophilicity to contact lens surfaces, by simple immersion treatment. Copolymer A: a copolymer obtained by copolymerization of a monomer (a) represented by formula (1) and a monomer (b) represented by formula (2), in which the copolymerization ratio of the monomer (a) to the monomer (b), a/b=7/3 to 9/1 (by mol), and having a weight-average molecular weight of 400,000 to 700,000.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: February 27, 2024
    Assignee: NOF CORPORATION
    Inventors: Hirotaka Suzuki, Hiroko Kawasaki, Shunsuke Sakurai
  • Patent number: 9068244
    Abstract: A method for recovering chromite from ore slurry obtained by processing nickel oxide ore, the raw material, in a plant for the wet smelting of nickel oxide ore. In the method chromite is separated and recovered from an ore slurry obtained from a nickel oxide ore when nickel and cobalt are recovered from the nickel oxide ore. The method has a grain diameter separation step for separating the ore slurry on the basis of a predetermined classification point according to the difference in the grain diameter of particles contained in the supplied ore slurry and a sedimentation separation step for causing the oversized ore slurry separated in the grain diameter separation step to undergo sedimentation and concentration on the basis of a target classification point, and recovering the chromite. The coarse particle content of the oversized ore slurry separated in the grain diameter separation step is adjusted to 30-50%.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: June 30, 2015
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hiroyuki Mitsui, Osamu Nakai, Hirotaka Kawasaki, Hiroshi Kobayashi, Tatsuya Higaki, Atsushi Idegami
  • Publication number: 20150014225
    Abstract: A method for recovering chromite from ore slurry obtained by processing nickel oxide ore, the raw material, in a plant for the wet smelting of nickel oxide ore. In the method chromite is separated and recovered from an ore slurry obtained from a nickel oxide ore when nickel and cobalt are recovered from the nickel oxide ore. The method has a grain diameter separation step for separating the ore slurry on the basis of a predetermined classification point according to the difference in the grain diameter of particles contained in the supplied ore slurry and a sedimentation separation step for causing the oversized ore slurry separated in the grain diameter separation step to undergo sedimentation and concentration on the basis of a target classification point, and recovering the chromite. The coarse particle content of the oversized ore slurry separated in the grain diameter separation step is adjusted to 30-50%.
    Type: Application
    Filed: April 6, 2012
    Publication date: January 15, 2015
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hiroyuki Mitsui, Osamu Nakai, Hirotaka Kawasaki, Hiroshi Kobayashi, Tatsuya Higaki, Atsushi Idegami
  • Patent number: 8806686
    Abstract: A seat cushion includes a cushion pad that is formed of breathable plastic foam, a breathable skin that is integrally layered on a front surface side of the cushion pad, and a non-breathable membrane-like film that is interleaved therebetween. The seat cushion includes a breathing hole formed in the film. The breathing hole extends from a back surface side of the cushion pad and passes through the cushion pad to penetrate the film. The breathing hole is formed while the cushion pad and the film are melted.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: August 19, 2014
    Assignee: Toyota Boshoku Kabushiki Kaisha
    Inventors: Hirotaka Kawasaki, Yukio Ishihara, Masao Tada, Ryoichi Wakayama
  • Publication number: 20110258781
    Abstract: A seat cushion includes a cushion pad that is formed of breathable plastic foam, a breathable skin that is integrally layered on a front surface side of the cushion pad, and a non-breathable membrane-like film that is interleaved therebetween. The seat cushion includes a breathing hole formed in the film. The breathing hole extends from a back surface side of the cushion pad and passes through the cushion pad to penetrate the film.
    Type: Application
    Filed: May 16, 2008
    Publication date: October 27, 2011
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Hirotaka Kawasaki, Yukio Ishihara, Masao Tada, Ryoichi Wakayama
  • Patent number: 7262330
    Abstract: A process of producing aldehydes in a continuous hydroformylation process of continuously reacting an olefinic unsaturated compound with carbon monoxide and hydrogen in the presence of a rhodium-phosphite based complex catalyst and continuously separating at least one component from a reaction product, the process being characterized in that at least a part of an aldehyde product and water are taken out as a mixed vapor flow from a catalyst-existent region in the process, and at least a part thereof is fed outside the catalyst-existent region as it stands as the vapor or as a condensate after cooling, to reduce the water concentration within the catalyst-existent region, whereby decomposition of phosphite ligands in the hydroformylation process of olefins is suppressed.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: August 28, 2007
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Akio Ueda, Yuuichi Fujita, Hirotaka Kawasaki
  • Publication number: 20040054236
    Abstract: A process of producing aldehydes in a continuous hydroformylation process of continuously reacting an olefinic unsaturated compound with carbon monoxide and hydrogen in the presence of a rhodium-phosphite based complex catalyst and continuously separating at least one component from a reaction product, the process being characterized in that at least a part of an aldehyde product and water are taken out as a mixed vapor flow from a catalyst-existent region in the process, and at least a part thereof is fed outside the catalyst-existent region as it stands as the vapor or as a condensate after cooling, to reduce the water concentration within the catalyst-existent region, whereby decomposition of phosphite ligands in the hydroformylation process of olefins is suppressed.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 18, 2004
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Akio Ueda, Yuuichi Fujita, Hirotaka Kawasaki
  • Patent number: 4990390
    Abstract: A fiber grid reinforcement is of a flat shape and has first and second directions perpendicular to each other. The fiber grid reinforcement includes a plurality of first fiber bundles, a plurality of second fiber bundles, and a resin material. The first fiber bundles are generally disposed along the first direction and generally parallel to one another. Each of the first fiber bundles includes at least one first group of fibers. The second fiber bundles are generally disposed along the second direction and generally parallel to one another. Each of the second fiber bundles inbcludes at least one second group of fibers. The second fiber bundles intersect perpendicular to the first fiber bundles at intersecting sections so as to form a grid structure. The first group and the second group of fibers are layered alternately at the intersecting sections in such a manner that at least one outermost layer is the second group. The resin material bonds fibers in each group, and bonds the groups to one another.
    Type: Grant
    Filed: December 12, 1989
    Date of Patent: February 5, 1991
    Assignees: Shimizu Construction Co., Ltd., Dainihon Glass Industry Co., Ltd.
    Inventors: Hirotaka Kawasaki, Takanori Hirai, Takuro Odawara, Kimitoshi Ryokai, Osamu Furukawa, Masayoshi Sato, Teruyuki Nakatsuji, Minoru Sugita, Kenichi Sekine