Patents by Inventor Satoshi Nanba

Satoshi Nanba 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: 10161297
    Abstract: A heat-insulating layer exhibiting high resistance to cracks, peeling, deformation, and gasoline and high heat insulation is obtained on the wall surface of an engine member (19). First, a heat insulator layer including a silicone-based resin and hollow particles containing a Si-based oxide is formed on a wall surface of the engine member (19). Then, Si-based oxide is produced through oxidation of a silicone-based resin in at least part of the surface of the heat insulator layer by heating the surface of the heat insulator layer. Thereafter, a catalytic metal is added to the silicone-based resin in the surface of the heat insulator layer and/or Si-based oxide derived from the hollow particles. Using the catalytic metal as nuclei, electroless plating is performed. In this manner, a heat-insulating layer (21) in which the surface of the heat-insulating film (27) is covered with a plating film (29) is obtained.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: December 25, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Satoshi Nanba, Shinji Kadoshima, Daiji Katsura, Nobuo Sakate, Takakazu Yamane, Akihide Takami
  • Publication number: 20160025035
    Abstract: A heat-insulating layer (21) provided on a surface of a component (19) facing an engine combustion chamber contains hollow particles (23) made of an inorganic oxide, a filler material (25), and a vitreous material (27) containing silicic acid as a main constituent. The vitreous material (27) is not in powder form, and surrounds and bonds the hollow particles (23) and the filler material (25) together.
    Type: Application
    Filed: September 4, 2014
    Publication date: January 28, 2016
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Shinji KADOSHIMA, Satoshi NANBA, Nobuo SAKATE, Hirofumi INOUE
  • Publication number: 20150204233
    Abstract: A heat-insulating layer exhibiting high resistance to cracks, peeling, deformation, and gasoline and high heat insulation is obtained on the wall surface of an engine member (19). First, a heat insulator layer including a silicone-based resin and hollow particles containing a Si-based oxide is formed on a wall surface of the engine member (19). Then, Si-based oxide is produced through oxidation of a silicone-based resin in at least part of the surface of the heat insulator layer by heating the surface of the heat insulator layer. Thereafter, a catalytic metal is added to the silicone-based resin in the surface of the heat insulator layer and/or Si-based oxide derived from the hollow particles. Using the catalytic metal as nuclei, electroless plating is performed. In this manner, a heat-insulating layer (21) in which the surface of the heat-insulating film (27) is covered with a plating film (29) is obtained.
    Type: Application
    Filed: July 24, 2013
    Publication date: July 23, 2015
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Satoshi Nanba, Shinji Kadoshima, Daiji Katsura, Nobuo Sakate, Takakazu Yamane, Akihide Takami
  • Patent number: 8178725
    Abstract: A method for efficiently separating and collecting an optically active amino acid amide and an optically active amino acid from an aqueous solution containing the optically active amino acid amide and the optically active amino acid includes separating and collecting an optically active amino acid amide from an aqueous solution containing the optically active amino acid amide and an optically active amino acid, utilizing a difference in solubility in an organic solvent between the optically active amino acid amide and the optically active amino acid, without desalting the aqueous solution or after desalting the same, under such a condition that a ratio (C/A) of the total equivalent (C) of cations to the total equivalent (A) of anions contained in the aqueous solution falls within the range from 0.95 to 1.05 when the aqueous solution is not desalted, and the range from 0.5 to 1.5 when the aqueous solution is desalted.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: May 15, 2012
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Masaki Sugita, Satoshi Nanba, Akinori Tanaka
  • Publication number: 20090318730
    Abstract: [Problems] To provide a method for efficiently separating and collecting an optically active amino acid amide and an optically active amino acid which are highly important substances as intermediates in the production of various industrial chemicals, agricultural chemicals, and pharmaceuticals, from an aqueous solution containing the optically active amino acid amide and the optically active amino acid.
    Type: Application
    Filed: April 21, 2006
    Publication date: December 24, 2009
    Applicant: MITSUBISHI GAS CHEMICAL CO., INC.
    Inventors: Masaki Sugita, Satoshi Nanba, Akinori Tanaka
  • Patent number: 7422797
    Abstract: In forming a plating layer for a sliding portion, which comprises Cr that is electrolytically-deposited in a plating bath containing Cr, the plating bath contains organic sulfonic acid. Accordingly, micro-cracks are formed at the plating layer. The plating layer for a sliding portion has the superior low friction and lubricating property.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: September 9, 2008
    Assignee: Mazda Motor Corporation
    Inventors: Yoshio Tanita, Shinji Kadoshima, Satoshi Nanba
  • Patent number: 7402695
    Abstract: A method for separately collecting an optically active amino acid amide and an optically active amino acid from an aqueous solution containing same, together with at least one member selected from the group consisting of an acid, a base, and a salt, includes a step of neutralizing an acid or base in the aqueous solution, a desalting step of removing a salt contained in the aqueous solution and/or formed in the neutralization step, and a step of separately collecting the optically active amino acid amide/amino acid separately from the desalted aqueous solution by a process which takes advantage of a difference in solubility between the two components in an organic solvent. The desalting step is preferably performed by electrodialysis, optionally with ammonia added to the aqueous solution. The optically active amino acid amide/amino acid can be separately collected with high efficiency using an organic solvent.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: July 22, 2008
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Atsushi Inoue, Akinori Tanaka, Satoshi Nanba
  • Publication number: 20070213559
    Abstract: The present invention is a method for separately collecting an optically active amino acid amide and an optically active amino acid from an aqueous solution containing the optically active amino acid amide and the optically active amino acid together with at least one member selected from the group consisting of an acid, a base and a salt: comprising a neutralization step of neutralizing an acid or a base when the aqueous solution contains the acid or the base; a desalting step of removing a salt contained in the aqueous solution and/or formed in the neutralization step; and a step of collecting the optically active amino acid amide and the optically active amino acid separately from the aqueous solution which has been desalted in the desalting step, by a process which takes advantage of a difference in solubility between the two components in an organic solvent. The desalting step is preferably performed by an electrodialysis process optionally in the state where ammonia is added to the aqueous solution.
    Type: Application
    Filed: April 22, 2005
    Publication date: September 13, 2007
    Applicant: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Atsushi Inoue, Akinori Tanaka, Satoshi Nanba
  • Publication number: 20060151329
    Abstract: In forming a plating layer for a sliding portion, which comprises Cr that is electrolytically-deposited in a plating bath containing Cr, the plating bath contains organic sulfonic acid. Accordingly, micro-cracks are formed at the plating layer. The plating layer for a sliding portion has the superior low friction and lubricating property.
    Type: Application
    Filed: December 19, 2005
    Publication date: July 13, 2006
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yoshio Tanita, Shinji Kadoshima, Satoshi Nanba
  • Patent number: 6552292
    Abstract: When a seat (3) (FIG. 6A) on which a wax layer (7) is formed via a melting reaction layer (5) is brought into contact with a head (2) and heated and pressed in this state, a melting reaction layer (6) forms below the wax layer (FIG. 6B). When electric current application and pressing are continued from this state, a wax which has not reacted in the wax layer (7) in the formation of the melting reaction layer (6) is discharged from between the melting reaction layers (5) and (6). When electrical current application and pressing are further continued from this state, the two melting reaction layers (5) and (6) diffuse each other. The result is that a ternary alloy bonding layer (10) containing Fe, Al, and Zn, which constitute the melting reaction layers (5) and (6) is formed between the seat (3) and the head (2) (FIG. 6D).
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: April 22, 2003
    Assignee: Mazda Motor Corporation
    Inventors: Seiji Nomura, Satoshi Nanba, Yukihiro Sugimoto, Yukio Yamamoto
  • Patent number: 6323458
    Abstract: In order to provide a method of joining a cylinder head 2 and a valve seat 3 by press and heat generated on passing an electrical current through both members 2, 3, to achieve satisfactory joining with minimized heat generated inside when the current is supplied, while eliminating the need for an infiltration step and reduce the production cost, inhibiting an increase in thermal conductivity of the valve seat 3 and improving the wear resistance thereof. The valve seat 3 is made of a sintered material made from a powdery material with a high electrical conductivity element such as Cu dispersed therein. The current and the pressure are applied with a first joining surface 3a of the valve seat 3 and a joining surface 2a of the cylinder head body 2 being put into surface contact with each other in advance.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: November 27, 2001
    Assignee: Mazda Motor Corporation
    Inventors: Seiji Nomura, Satoshi Nanba
  • Patent number: 6313201
    Abstract: A composition is provided which comprises catalase modified with a copolymer (A) and a second copolymer, i.e., copolymer (B). The copolymer (A) comprises an alkenyl ether, maleic anhydride, and at least one monomer selected from the group consisting of unsaturated carboxylic acid, vinyl compound and olefin, and copolymer (B) consists of an ethylenically unsaturated monomer and a monomer selected from the group consisting of a monomer having a carboxyl group and a monomer having an acid anhydride group, or a salt of the copolymer (B).
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: November 6, 2001
    Assignees: Mitsubishi Gas Chemical Company, Inc., NOF Corporation
    Inventors: Satoshi Nanba, Tomomi Suzuki, Syunsuke Ohhashi, Tohru Yasukohchi
  • Patent number: 6222150
    Abstract: The present invention provides a method for joining two metal members into a joined metal member. The method comprise steps of; applying a brazing material having a higher melting point than both the members on the surface of a first metal member and heating them to form a brazing material on said surface and a braze-diffusion layer under the brazing material in the surface area of the first member; and, then, pressing the first and another second metal members between which the brazing material is interposed during heating at a higher temperature than said melting point of the brazing material to squeeze the molten brazing material out between both the contact surfaces of both the metal members, therefor the two metal members being joined by the braze diffusion layers formed in both the surfaces into the joined metal member.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: April 24, 2001
    Assignee: Mazda Motor Corporation
    Inventors: Seiji Nomura, Satoshi Nanba, Yukio Yamamoto, Yukihiro Sugimoto, Shinya Shibata
  • Patent number: 4729729
    Abstract: There is disclosed a rotor housing for a rotary piston engine which is designed particularly for high output power wherein the rotor housing inner wall surface is required to possess heat and wear resistant properties, improved affinity to lubricant oil, resistance to uneven wear which may cause chatter marks and scratches, oil retaining property, and less harmfulness to the apex seal. The rotor housing is formed at the inner wall surface with a porous Cr-Mo plating containing 0.50 to 0.90% in weight of Mo.
    Type: Grant
    Filed: July 17, 1986
    Date of Patent: March 8, 1988
    Assignee: Mazda Motor Corporation
    Inventors: Kouji Tarumoto, Satoshi Nanba
  • Patent number: 4678738
    Abstract: A process for manufacturing a member having a wear resistant sliding surface. The process includes the steps of providing a metallic substrate having a surface covered by a photo-resist coating, forming the photo-resist coating with a pattern of hard and soft portions, removing the photo-resist coating at the soft portions to expose surface portions of the metallic substrate beneath the soft portions of the photo-resist coating, etching the metallic substrate with the hard portion of the photo-resist coating retained thereon to form pits in the surface portions of the metallic substrate, spraying molten filler material on the surface of the metallic substrate with the hard portion of the photo-resist coating thereon, to fill the pits with the filler material of a porous structure having an oil-retaining capability, and removing the hard portion of the photo-resist coating from the metallic substrate.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: July 7, 1987
    Assignee: Mazda Motor Corporation
    Inventors: Tsutomu Shimizu, Kouji Tarumoto, Satoshi Nanba
  • Patent number: 4636285
    Abstract: A sliding member having a number of oil retaining pores is manufactured by forming a hard plating layer on a metal base, forming a masking resist film on the hard plating layer by exposure to light and development, forming a number of pores in the hard plating layer by effecting electrolytic etching at a current density of 50 to 600 A/dm.sup.2, dissolving said masking resist film and removing the same, and forming a hard ceramic film on the hard plating layer by vapor phase plating.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: January 13, 1987
    Assignee: Mazda Motor Corporation
    Inventors: Kouji Tarumoto, Jun Miyata, Koji Yagii, Satoshi Nanba
  • Patent number: 4448519
    Abstract: An image forming apparatus is so arranged as to form an image of an original document on a photosensitive member by accommodating the plate-like photosensitive member of a rectangular or square configuration placed on an exposure section base in a housing of the image forming apparatus. The exposure section base is disengageable from the housing in a horizontal direction and has a plurality of suction holes in a region on which the photosensitive member is placed. A switch detects when the exposure section base is inserted into the housing to reach a predetermined position, and a suction device then sucks air through the suction holes.
    Type: Grant
    Filed: June 15, 1982
    Date of Patent: May 15, 1984
    Assignee: Mita Industrial Company Limited
    Inventors: Ishida, Hiroshi, Takaichi Kitagawa, Yasuji Sumida, Satoshi Nanba, Toshikazu Tomi