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).
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Patent number: 9969220Abstract: 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: GrantFiled: May 7, 2015Date of Patent: May 15, 2018Assignee: BRIDGESTONE CORPORATIONInventor: Shinichi Toyosawa
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Publication number: 20180086142Abstract: 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: ApplicationFiled: March 23, 2016Publication date: March 29, 2018Applicant: BRIDGESTONE CORPORATIONInventors: Keiichi HASEGAWA, Seiji KON, Yoshihide KOUNO, Masashi NISHIDA, Daisuke NAKAJIMA, Shinichi TOYOSAWA
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Publication number: 20170129285Abstract: 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: ApplicationFiled: May 7, 2015Publication date: May 11, 2017Applicant: BRIDGESTONE CORPORATIONInventor: Shinichi TOYOSAWA
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Publication number: 20170120681Abstract: 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: ApplicationFiled: May 7, 2015Publication date: May 4, 2017Applicant: BRIDGESTONE CORPORATIONInventor: Shinichi TOYOSAWA
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Publication number: 20170021670Abstract: 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: ApplicationFiled: April 10, 2015Publication date: January 26, 2017Applicant: BRIDGESTONE CORPORATIONInventor: Shinichi TOYOSAWA
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Patent number: 8962152Abstract: 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: GrantFiled: September 8, 2010Date of Patent: February 24, 2015Assignee: Bridgestone CorporationInventor: Shinichi Toyosawa
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Publication number: 20130192960Abstract: 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: ApplicationFiled: September 22, 2011Publication date: August 1, 2013Applicant: BRIDGESTONE CORPORATIONInventor: Shinichi Toyosawa
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Publication number: 20120177944Abstract: 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: ApplicationFiled: September 8, 2010Publication date: July 12, 2012Applicant: BRIDGESTONE CORPORATIONInventor: Shinichi Toyosawa
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Publication number: 20100243466Abstract: 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: ApplicationFiled: November 26, 2008Publication date: September 30, 2010Applicant: Bridgestone CorporationInventors: Yukiko Yamamoto, Takeshi Ohba, Shinichi Toyosawa
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Publication number: 20080070095Abstract: 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: ApplicationFiled: June 29, 2005Publication date: March 20, 2008Inventors: Shinichiro Sugi, Shinichi Toyosawa, Masato Yoshikawa, Munenori Iizuka
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Patent number: 7151152Abstract: 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: GrantFiled: March 2, 2004Date of Patent: December 19, 2006Assignee: Bridgestone CorporationInventors: Toshikazu Takata, Yoshio Furusho, Tomoya Oku, Daisuke Natsui, Shinichi Toyosawa, Takeshi Oba
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Publication number: 20060266411Abstract: 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: ApplicationFiled: August 8, 2006Publication date: November 30, 2006Inventors: Hideo Sugiyama, Shingo Ohno, Shinichiro Sugi, Shinichi Toyosawa, Masato Yoshikakwa
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Publication number: 20060051283Abstract: 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: ApplicationFiled: January 15, 2004Publication date: March 9, 2006Applicant: BRIDGESTONE CORPORATIONInventors: Shinichi Toyosawa, Munenori Iizuka
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Publication number: 20050260786Abstract: 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: ApplicationFiled: August 6, 2003Publication date: November 24, 2005Applicant: BRIDGESTONE CORPORATIONInventors: Masato Yoshikawa, Shingo Ohno, Taichi Kobayashi, Takayuki Sugimura, Yoshinori Iwabuchi, Osamu Shiino, Hideo Sugiyama, Yasuo Horikawa, Shinichi Toyosawa
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Publication number: 20050049383Abstract: 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: ApplicationFiled: March 2, 2004Publication date: March 3, 2005Inventors: Toshikazu Takata, Yoshio Furusho, Tomoya Oku, Daisuke Natsui, Shinichi Toyosawa, Takeshi Oba
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Patent number: 6824730Abstract: 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: GrantFiled: February 14, 2001Date of Patent: November 30, 2004Assignee: Bridgestone CorporationInventors: Naruhiko Mashita, Shinichi Toyosawa, Youichi Nishimuro, Yasushi Imai, Tadashi Utsunomiya, Ichiro Akasaka, Youkou Saito
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Patent number: 6663975Abstract: 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 madeType: GrantFiled: September 28, 2000Date of Patent: December 16, 2003Assignee: Bridgestone CorporationInventors: Shinichi Toyosawa, Youichi Nishimuro, Naruhiko Mashita, Kunio Machida
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Patent number: 6505839Abstract: 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: GrantFiled: October 27, 1999Date of Patent: January 14, 2003Assignee: Bridgestone CorporationInventors: Youichi Nishimuro, Shinichi Toyosawa, Kunio Machida
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Patent number: 6455626Abstract: 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: GrantFiled: June 5, 2001Date of Patent: September 24, 2002Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, Takahiro Matsuse, Naruhiko Mashita, Shinichi Toyosawa
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Patent number: 6399696Abstract: 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: GrantFiled: February 17, 2000Date of Patent: June 4, 2002Assignee: Bridgestone CorporationInventors: Shinichi Toyosawa, Youichi Nishimuro, Kunio Machida, Takashi Shimizu, Naruhiko Mashita, Yasunori Fukuda, Jun Arai, Yasushi Imai, Tadashi Utsunomiya