Patents by Inventor Shinichi Toyosawa

Shinichi Toyosawa 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: 9969220
    Abstract: A non-pneumatic tire includes: a ring member (14) including an inner cylinder (12) externally covering an attachment body (11) to be attached to an axle and an outer cylinder (13) surrounding the inner cylinder (12) from a tire radial outer side; a plurality of connecting members (15) arranged along a tire circumferential direction between the inner cylinder (12) and the outer cylinder (13) and connecting the two cylinders to each other; and a tread member (16) made of vulcanized rubber and located on a tire radial outer side of the outer cylinder (13), wherein at least one part of the outer cylinder (13) and the plurality of connecting members (15) are integrally formed of a synthetic resin material, and an adhesion layer (25) containing an epoxy-based adhesive agent is located between the tread member (16) and the outer cylinder (13) having an amino group in a surface thereof.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: May 15, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Shinichi Toyosawa
  • Publication number: 20180086142
    Abstract: A non-pneumatic tire (1) of the present invention includes an attachment body (11) attached to an axle, an outer cylindrical body (13) which surrounds the attachment body (11) from the outside in a tire radial direction, a tread portion (16) which surrounds the outer cylindrical body (13) from the outside in the tire radial direction, and a coupling member (15) which displaceably couples the attachment body (11) to the outer cylindrical body (13), wherein, a spiral reinforcing layer (20) formed by spirally winding an element wire body in which one cord (42) or a plurality of cords (42) parallel to each other are embedded in a covering body on an outer circumferential surface of the outer cylindrical body (13) is bonded to the outer circumferential surface of the outer cylindrical body (13).
    Type: Application
    Filed: March 23, 2016
    Publication date: March 29, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Keiichi HASEGAWA, Seiji KON, Yoshihide KOUNO, Masashi NISHIDA, Daisuke NAKAJIMA, Shinichi TOYOSAWA
  • Publication number: 20170129285
    Abstract: A non-pneumatic tire includes:a ring member (14) including an inner cylinder (12) externally covering an attachment body (11) to be attached to an axle and an outer cylinder (13) surrounding the inner cylinder (12) from a tire radial outer side; a plurality of connecting members (15) arranged along a tire circumferential direction between the inner cylinder (12) and the outer cylinder (13) and connecting the two cylinders to each other; and a tread member (16) made of vulcanized rubber and located on a tire radial outer side of the outer cylinder (13), wherein at least one part of the outer cylinder (13) and the plurality of connecting members (15) are integrally formed of a synthetic resin material, and an adhesion layer (25) containing an epoxy-based adhesive agent is located between the tread member (16) and the outer cylinder (13) having an amino group in a surface thereof.
    Type: Application
    Filed: May 7, 2015
    Publication date: May 11, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Shinichi TOYOSAWA
  • Publication number: 20170120681
    Abstract: A non-pneumatic tire includes: a ring member (14) including an inner cylinder (12) externally covering an attachment body (11) to be attached to an axle and an outer cylinder (13) surrounding the inner cylinder (12) from a tire radial outer side; a plurality of connecting members (15) arranged along a tire circumferential direction between the inner cylinder (12) and the outer cylinder (13) and connecting the two cylinders to each other; and a tread member (16) made of vulcanized rubber and located on a tire radial outer side of the outer cylinder (13), wherein at least one part of the outer cylinder (13) and the plurality of connecting members (15) are integrally formed of a synthetic resin material, and an adhesion layer (25) containing a cyanoacrylate-based adhesive agent is located between the tread member (16) and the outer cylinder (13) having an amino group in a surface thereof.
    Type: Application
    Filed: May 7, 2015
    Publication date: May 4, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Shinichi TOYOSAWA
  • Publication number: 20170021670
    Abstract: Provided is a resin-metal composite material that ensures high adhesion between a resin material and a metal material. Additionally provided is a tire that achieves high durability by using the resin-metal composite material. The resin-metal composite material includes a metal material and a resin material that coats at least a part of the surface of the metal material. The resin material includes, as a main component, a thermoplastic resin having a polar group. The surface of the metal material is treated with a buffer solution having a pH of from 5 to 7.2, and an abundance ratio of copper to a total amount of copper and zinc (Cu/(Cu+Zn)×100) in the surface of the metal material is from 55 to 95% by mass. The tire includes a circular tire frame formed of a resin material and a reinforcing layer composed of a reinforcing member wound around an outer circumference of the tire frame, in which the reinforcing member includes the resin-metal composite material.
    Type: Application
    Filed: April 10, 2015
    Publication date: January 26, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Shinichi TOYOSAWA
  • Patent number: 8962152
    Abstract: The present invention relates to a brass-plated steel cord capable of further improving initial adhesiveness and heat-resistant adhesiveness between a coating rubber and a steel cord and also imparting excellent durability to a resulting rubber article, and more particularly to a brass-plated steel cord, wherein an outermost surface thereof contains 0.3 to 1.7 atomic % of phosphorus, 4.93 to 14 atomic % of zinc, and 0.01 to 2.0 atomic % of a metal having an ionization tendency lower than that of zinc and higher than that of copper as measured by XPS (X-ray photoelectron spectroscopy), and an amount of zinc in the outermost surface is 30 to 90 atomic % based on 100 atomic % of a total amount of zinc and copper.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: February 24, 2015
    Assignee: Bridgestone Corporation
    Inventor: Shinichi Toyosawa
  • Publication number: 20130192960
    Abstract: A method of manufacturing a rubber-metal composite, the method including a process of bringing a metal material into contact with a buffer solution having a pH of from 5 to 7.2, followed by a process of causing the metal material and rubber to adhere to each other.
    Type: Application
    Filed: September 22, 2011
    Publication date: August 1, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Shinichi Toyosawa
  • Publication number: 20120177944
    Abstract: The present invention relates to a brass-plated steel cord capable of further improving initial adhesiveness and heat-resistant adhesiveness between a coating rubber and a steel cord and also imparting excellent durability to a resulting rubber article, and more particularly to a brass-plated steel cord, wherein an outermost surface thereof contains 0.3 to 1.7 atomic % of phosphorus, 4.93 to 14 atomic % of zinc, and 0.01 to 2.0 atomic % of a metal having an ionization tendency lower than that of zinc and higher than that of copper as measured by XPS (X-ray photoelectron spectroscopy), and an amount of zinc in the outermost surface is 30 to 90 atomic % based on 100 atomic % of a total amount of zinc and copper.
    Type: Application
    Filed: September 8, 2010
    Publication date: July 12, 2012
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Shinichi Toyosawa
  • Publication number: 20100243466
    Abstract: A cyanide-free copper-zinc alloy electroplating bath is provided which can form a uniform and glossy alloy layer having the desired composition even at a higher current density than that for a conventional electroplating bath, and which is excellent in productivity. The copper-zinc alloy electroplating bath comprises at least one selected from a copper salt, zinc salt, alkali metal pyrophosphate, and amino acid or a salt thereof, and has a pH of 8.5 to 14. The pH is preferably 10.5 to 11.8; and the concentration of the amino acid or a salt thereof is preferably 0.08 mol/L to 0.22 mol/L, more preferably 0.1 mol/L to 0.13 mol/L. As the amino acid or a salt thereof, histidine or a salt thereof may be preferably used.
    Type: Application
    Filed: November 26, 2008
    Publication date: September 30, 2010
    Applicant: Bridgestone Corporation
    Inventors: Yukiko Yamamoto, Takeshi Ohba, Shinichi Toyosawa
  • Publication number: 20080070095
    Abstract: This invention provides a composite body, a catalyst structural body, an electrode for a solid polymer fuel cell and a method for producing the same and a solid polymer fuel cell. More concretely, there are provided (1) a composite body, a catalyst structural body and an electrode for a solid polymer fuel cell being excellent in the electronic conduction, permeability and handling property, (2) an electrode for a solid polymer fuel cell capable of highly expanding a reaction field of an electrochemical reaction at a three-phase interface of a solid polymer electrolyte membrane, a gas and a catalyst layer in a solid polymer fuel cell, and a method for producing the same, and (3) a solid polymer fuel cell being low in the internal resistance, wherein a voltage is preferable to be hardly lowered even in a high current range.
    Type: Application
    Filed: June 29, 2005
    Publication date: March 20, 2008
    Inventors: Shinichiro Sugi, Shinichi Toyosawa, Masato Yoshikawa, Munenori Iizuka
  • Patent number: 7151152
    Abstract: This invention relates to a novel crosslinked body obtained by crosslinking plural polymers and having higher characteristics and being easily decrosslinked, and particularly to a crosslinked body obtained by crosslinking plural polymers through mechanical bonding with a rotaxane structure consisting of a shaft and a ring(s). In the crosslinked body, the polymer may correspond to the ring in the rotaxane structure or the shaft in the rotaxane structure.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: December 19, 2006
    Assignee: Bridgestone Corporation
    Inventors: Toshikazu Takata, Yoshio Furusho, Tomoya Oku, Daisuke Natsui, Shinichi Toyosawa, Takeshi Oba
  • Publication number: 20060266411
    Abstract: A method for making a dye-sensitized solar cell having a semiconductor film that exhibits high power generating efficiency and that can be formed at relatively low temperature is provided. Titanium oxide paste is applied and dried on a transparent conductive film 2 to form a titanium oxide layer. An aqueous peroxotitanic acid solution 11 is dropwise-placed and heated on the titanium oxide layer. During this process, the aqueous peroxotitanic acid solution penetrates sites on which titanium oxide particles 10 are not adsorbed on the transparent conductive film 2, and the aqueous peroxotitanic acid solution 11 reacts to generate titanium oxide 11A. The titanium oxide 11A is generated at gaps s,t between the titanium oxide particles 10 to form tight linkages between titanium oxide particles 10, resulting in high power generating efficiency.
    Type: Application
    Filed: August 8, 2006
    Publication date: November 30, 2006
    Inventors: Hideo Sugiyama, Shingo Ohno, Shinichiro Sugi, Shinichi Toyosawa, Masato Yoshikakwa
  • Publication number: 20060051283
    Abstract: The invention relates to a method of producing carbon fibers characterized by oxidative-polymerizing a compound having an aromatic ring to obtain a fibril-shaped polymer and firing the fibril-shaped polymer in a non-oxidizing atmosphere, a novel catalyst structure using the carbon fibers obtained by this method, a membrane electrode assembly for a solid polymer fuel cell using the catalyst structure, and a solid polymer fuel cell provided with the membrane electrode assembly for the solid polymer fuel cell.
    Type: Application
    Filed: January 15, 2004
    Publication date: March 9, 2006
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Shinichi Toyosawa, Munenori Iizuka
  • Publication number: 20050260786
    Abstract: An electrolyte for dye-sensitized solar cells, wherein an oxidation-reduction substance is carried by a vulcanized rubber, a phosphazene polymer, a porous body comprising a high molecular material which has a three-dimensional continuous network skeleton structure, or an EVA resin film. A dye-sensitized solar cell comprising dye-sensitized semiconductor electrodes 2, 3, a counter electrode 4 arranged at an opposed position to the electrodes, and an electrolyte 6 between the electrodes 2, 3 and the electrode 4. A solid electrolyte for dye-sensitized solar cells effective in improving the generation efficiency, durability, and safety of dye-sensitized solar cells and can be manufactured inexpensively.
    Type: Application
    Filed: August 6, 2003
    Publication date: November 24, 2005
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Masato Yoshikawa, Shingo Ohno, Taichi Kobayashi, Takayuki Sugimura, Yoshinori Iwabuchi, Osamu Shiino, Hideo Sugiyama, Yasuo Horikawa, Shinichi Toyosawa
  • Publication number: 20050049383
    Abstract: This invention relates to a novel crosslinked body obtained by crosslinking plural polymers and having higher characteristics and being easily decrosslinked, and particularly to a crosslinked body obtained by crosslinking plural polymers through mechanical bonding with a rotaxane structure consisting of a shaft and a ring(s). In the crosslinked body, the polymer may correspond to the ring in the rotaxane structure or the shaft in the rotaxane structure.
    Type: Application
    Filed: March 2, 2004
    Publication date: March 3, 2005
    Inventors: Toshikazu Takata, Yoshio Furusho, Tomoya Oku, Daisuke Natsui, Shinichi Toyosawa, Takeshi Oba
  • Patent number: 6824730
    Abstract: There are disclosed a resin composition which is excellent in rubber elasticity, oil maintainability and adhesivity to a metal, and comprises a thermoplastic elastomer composition comprising a (a1) hydrogenated block copolymer which is obtained by hydrogenating a block copolymer consisting essentially of a polymer block composed principally of a vinyl aromatic compound and a polymer block composed principally of a conjugated diene compound, which has a weight average molecular weight of at least 200,000, in which the polymer block composed principally of a vinyl aromatic compound is polystyrene, and in which the content by weight of the polystyrene moiety contained in the hydrogenated block copolymer is 20 to 40%; a (b1) non-aromatic rubber-softening agent having a kinematic viscosity at 40° C.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: November 30, 2004
    Assignee: Bridgestone Corporation
    Inventors: Naruhiko Mashita, Shinichi Toyosawa, Youichi Nishimuro, Yasushi Imai, Tadashi Utsunomiya, Ichiro Akasaka, Youkou Saito
  • Patent number: 6663975
    Abstract: There are disclosed a resin composition (I) which comprises 100 parts by weight of (a1) a styrenic thermoplastic elastomer composed of a block copolymer (styrene-ethylene/butylene-styrene block copolymer, styrene-ethylene/propylenestyrene block copolymer), 3 to 50 parts by weight of (b1) an ethylene/(meth) acrylic acid copolymer or an ethylene/(meth)-acrylic ester copolymer each having 5 to 45% by weight of (meth)acrylic acid content, and 50 to 170 parts by weight of (c1) a paraffin base oil; a resin composition (II) which comprises 100 parts by weight of (a2) a styrenic thermoplastic elastomer composed of a block copolymer, 1 to 15 parts by weight of (b2) a maleic anhydride-grafted polyolefin, and 30 to 170 parts by weight of (c2) a paraffin base oil; a gasket material (I) composed of the components (a1), (b1) and (c1); a gasket material (II) composed of the components (a2), (b2) and (c2); and a gasketed cover in which a gasket made of the gasket material (I) or (II) is integrally fitted to a cover body made
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: December 16, 2003
    Assignee: Bridgestone Corporation
    Inventors: Shinichi Toyosawa, Youichi Nishimuro, Naruhiko Mashita, Kunio Machida
  • Patent number: 6505839
    Abstract: There are disclosed a first gasketed cover which has excellent sealing properties and comprises a cover body composed of a thermoplastic resin and a gasket composed of a thermoplastic elastomer and integrated with the cover body; a second gasketed cover which has excellent sealing properties and is capable of preventing the generation of noises due the vibration of the cover and which comprises a cover body, a gasket composed of an elastic body and integratedly attached to the cover body, and a member composed of the elastic body of a type same as or different from that in the gasket and integratedly installed on at least part of the cover body plane portion excluding the gasket portion; an electronic equipment cover which is capable of preventing pressure difference between the inside and the outside thereof and which comprises a cover body and a membrane composed of an elastic body and installed on a hole placed on the plane portion of the cover body, in which the cover body is integrated with the membrane;
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: January 14, 2003
    Assignee: Bridgestone Corporation
    Inventors: Youichi Nishimuro, Shinichi Toyosawa, Kunio Machida
  • Patent number: 6455626
    Abstract: The present invention teaches a method for enabling the formation of a high damping, soft polymer gel. The method includes: reacting a poly(alkenyl benzene-co-maleimide) polymer with a maleated polyalkylene and an alkyl diamine under substantially dry conditions sufficient to form a polyalkylene grafted poly(alkenyl benzene-co-maleimide) polymer product; and, dispersing the polyalkylene grafted poly(alkenyl benzene-co-maleimide) polymer product with an extender oil sufficient to form the gel. The present invention also contemplates a polymer gel composition, a polymer composition and an article manufactured from the polymer gel composition.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: September 24, 2002
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz, Takahiro Matsuse, Naruhiko Mashita, Shinichi Toyosawa
  • Patent number: 6399696
    Abstract: There are disclosed a thermoplastic elastomer composition which comprises (a) a hydrogenated block copolymer obtained by hydrogenating the block copolymer comprising at least one polymer block composed principally of a vinylic aromatic compound and at least one polymer block composed principally of a conjugated diene compound; (b) a non-aromatic base softening agent having a kinematic viscosity at 40° C.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: June 4, 2002
    Assignee: Bridgestone Corporation
    Inventors: Shinichi Toyosawa, Youichi Nishimuro, Kunio Machida, Takashi Shimizu, Naruhiko Mashita, Yasunori Fukuda, Jun Arai, Yasushi Imai, Tadashi Utsunomiya