Patents by Inventor Shinichi Musha

Shinichi Musha 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).

  • Publication number: 20200307133
    Abstract: Provided is a tire on which cracks on sidewall portion outer surfaces are unlikely to progress. The tire comprises a depthwise structure on at least a part of a sidewall portion, the depthwise structure comprising, in a depth direction from a point on a sidewall portion outer surface, a depthwise part from the sidewall portion outer surface to 0.5 mm and a depthwise part II from 0.5 mm to 1.0 mm, wherein: the depthwise part I and the depthwise part II satisfy: the depthwise part I: peak temperature T1 of tan ? is ?20° C. or more and ?5° C. or less, and when tang at the peak temperature T1 is ?1 and storage modulus at the peak temperature T1 is E?1, ?1?0.90 and E?1?5 MPa; and the depthwise part II: when tan ? at peak temperature T1 is ?2, and storage modulus at peak temperature T1 is E?2, ?2<?1 and E?2<E?1.
    Type: Application
    Filed: December 2, 2016
    Publication date: October 1, 2020
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Seiichi TAHARA, Shinichi MUSHA, Tomohiro URATA, Tatsuya NOMOTO
  • Patent number: 10760211
    Abstract: This disclosure is to provide a brass-plated steel wire for reinforcing a rubber article, which is capable of improving the initial adhesiveness, heat-resistant adhesiveness and initial adhesion rate. This disclosure is a brass-plated steel wire for reinforcing a rubber article, wherein: when measured with XPS (X-ray photoelectron spectroscopy), an outermost surface contains zinc at an amount of 4.8 atom % or less, phosphorus at an amount of 0.5 atom % or more, and oxygen at an amount of 50 atom % or less; and in the outermost surface, an atomic ratio of copper to zinc is 1 to 6.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: September 1, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Shinichi Musha, Yoshihiko Kanatomi, Junichi Yamagishi
  • Publication number: 20200148860
    Abstract: Provided is a rubber composition capable of providing a vulcanized rubber excellent in fracture resistance, crack resistance, and low heat generation property. The rubber composition comprises a rubber component (A), a carbon black (B) having a CTAB specific surface area of 30-110 m2/g and a silica (C) having a CTAB specific surface area of 200 m2/g or larger. The total amount of the amount (b) of the carbon black (B) and the amount (c) of the silica (C) is 30-80 parts by mass relative to 100 parts by mass of the rubber component (A), and (b):(c)=(70-85):(30-15).
    Type: Application
    Filed: January 10, 2020
    Publication date: May 14, 2020
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yoshihiko KANATOMI, Shinichi MUSHA, Satoshi HAMATANI
  • Patent number: 10544287
    Abstract: The rubber composition of the present invention is prepared by mixing a rubber component (A), zinc oxide (B), and a co-condensate (C) having a softening point of 150° C. or lower and containing a p-tert-butylphenol-derived constituent unit represented by the following formula (1), an o-phenylphenol-derived constituent unit represented by the following formula (2) and a resorcinol-derived constituent unit represented by the following formula (3), wherein the nitrogen adsorption specific surface area (N2SA) of the zinc oxide (B) measured according to the BET method is 6 m2/g or more and 110 m2/g or less, the mixing amount of the zinc oxide (B) is 5 parts by mass or more and 13 parts by mass or less based on 100 parts by mass of the rubber component (A), and the mixing amount of the co-condensate (C) is 0.1 parts by mass or more and 10 parts by mass or less based on 100 parts by mass of the rubber component (A).
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: January 28, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Junichi Yamagishi, Shinichi Musha, Yoshihiko Kanatomi
  • Publication number: 20180371291
    Abstract: An object of the present invention is to provide a coating composition that is capable of providing a cured film excellent in adhesion to a base material and flexural fatigue resistance. Another object of the present invention is to provide a cured film obtained from the coating composition, and a laminate and a tire each having the cured film formed thereon. The coating composition of the present invention contains a polythiol compound (A), a polyurethane having an ethylenically unsaturated group (B), and a radical generator (C).
    Type: Application
    Filed: December 15, 2016
    Publication date: December 27, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Tomohiro URATA, Shinichi MUSHA, Kotaro HAYAKAWA, Tatsuya FUNAKI, Akihide OOSAKU
  • Publication number: 20180345737
    Abstract: Provided is a tire on which cracks on sidewall portion outer surfaces are unlikely to progress. The tire comprises a depthwise part I from a point on a sidewall portion outer surface to 0.5 mm on at least a part of a sidewall portion, wherein: the depthwise part I satisfies the following requirement: the depthwise part I: comprising a natural rubber, a butadiene rubber, and a thermoplastic elastomer; a peak temperature T1 (° C.) of tan ? is ?20° C. or more and ?5° C. or less; and when tan ? at the peak temperature T1 (° C.) is ?1 and a storage modulus at the peak temperature T1 (° C.) is E?1 (MPa), ?1?0.90 and E?1?MPa.
    Type: Application
    Filed: December 2, 2016
    Publication date: December 6, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Seiichi TAHARA, Shinichi MUSHA, Tomohiro URATA, Tatsuya NOMOTO
  • Publication number: 20170233557
    Abstract: The rubber composition of the present invention is prepared by mixing a rubber component (A), zinc oxide (B), and a co-condensate (C) having a softening point of 150° C. or lower and containing a p-tert-butylphenol-derived constituent unit represented by the following formula (1), an o-phenylphenol-derived constituent unit represented by the following formula (2) and a resorcinol-derived constituent unit represented by the following formula (3), wherein the nitrogen adsorption specific surface area (N2SA) of the zinc oxide (B) measured according to the BET method is 6 m2/g or more and 110 m2/g or less, the mixing amount of the zinc oxide (B) is 5 parts by mass or more and 13 parts by mass or less based on 100 parts by mass of the rubber component (A), and the mixing amount of the co-condensate (C) is 0.1 parts by mass or more and 10 parts by mass or less based on 100 parts by mass of the rubber component (A).
    Type: Application
    Filed: September 28, 2015
    Publication date: August 17, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Junichi YAMAGISHI, Shinichi MUSHA, Yoshihiko KANATOMI
  • Patent number: 9708464
    Abstract: A rubber-metal composite body constituted of a rubber composition and a metal material embedded therein is conventionally used in a rubber article requiring high strength in order to reinforce rubber to improve strength and durability thereof. The present invention provides a rubber composition having good initial adhesive properties and good heat resistant adhesive properties with respect to a metal material, mainly for use in the rubber-metal composite body as described above. Specifically, the present invention provides a rubber composition, containing a cobalt compound by an amount, according to cobalt atoms, in the range of 0.0025 to 0.05 parts by mass with respect to 100 parts by mass of a rubber component.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: July 18, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Shinichi Musha, Junichi Yamagishi
  • Publication number: 20170121904
    Abstract: This disclosure is to provide a brass-plated steel wire for reinforcing a rubber article, which is capable of improving the initial adhesiveness, heat-resistant adhesiveness and initial adhesion rate. This disclosure is a brass-plated steel wire for reinforcing a rubber article, wherein: when measured with XPS (X-ray photoelectron spectroscopy), an outermost surface contains zinc at an amount of 4.8 atom % or less, phosphorus at an amount of 0.5 atom % or more, and oxygen at an amount of 50 atom % or less; and in the outermost surface, an atomic ratio of copper to zinc is 1 to 6.
    Type: Application
    Filed: April 6, 2015
    Publication date: May 4, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Shinichi MUSHA, Yoshihiko KANATOMI, Junichi YAMAGISHI
  • Publication number: 20170101736
    Abstract: This disclosure is to provide a brass-plated steel wire for reinforcing a rubber article, which is capable of improving overvulcanization adhesiveness. This disclosure is a brass-plated steel wire for reinforcing a rubber article, wherein: when measured with XPS (X-ray photoelectron spectroscopy), an outermost surface contains zinc at an amount of 4.93 to 14 atom %, and contains oxygen at an amount of 50 atom % or less; and in the outermost surface, an atomic ratio of copper to zinc is more than 2.33 and 6 or less.
    Type: Application
    Filed: April 6, 2015
    Publication date: April 13, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Shinichi MUSHA, Junichi YAMAGISHI
  • Publication number: 20160122944
    Abstract: Provide are a rubber composition which is excellent in an initial adhesive property and a hygrothermal adhesive property with metals, a rubber-metal composite suited to rubber articles such as tires for automobiles, industrial belts and the like to which a strength is required, and a production method for the same. The metal cord-rubber composite of the present invention is prepared by coating a metal cord with a rubber composition, wherein an N atom on a surface of the metal cord accounts for 2 atomic % or more and 60 atomic % or less, and a Cu/Zn ratio is 1 or more and 4 or less.
    Type: Application
    Filed: May 28, 2014
    Publication date: May 5, 2016
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Shinichi MUSHA, Yoshihiko KANATOMI, Junichi YAMAGISHI
  • Patent number: 9169803
    Abstract: A seal member (3) is disposed between a cylinder head cover (1) in which an ignition plug mounting hole (1a) is formed and a plug tube (2) which is inserted in the ignition plug mounting hole (1a). The seal member (3) is provided with: a base section (31) configured to be elastically deformable and inserted into the ignition plug mounting hole (1a); a protrusion section (32) formed so as to protrude outward in the radial direction from the outer peripheral surface of the base section (31) and engaging with a groove (12b) formed in the inner peripheral surface of the ignition plug mounting hole (1a); a seal lip section (33) in elastic contact with the outer peripheral surface of the plug tube (2); and a grip section (34) formed between the base section (31) and the seal lip section (33) and protruding downward from the ignition plug mounting hole (1a).
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: October 27, 2015
    Assignees: HONDA MOTOR CO., LTD., MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Yoshihiro Akiyama, Shinichi Musha
  • Publication number: 20150050506
    Abstract: A rubber-metal composite body constituted of a rubber composition and a metal material embedded therein is conventionally used in a rubber article requiring high strength in order to reinforce rubber to improve strength and durability thereof. The present invention provides a rubber composition having good initial adhesive properties and good heat resistant adhesive properties with respect to a metal material, mainly for use in the rubber-metal composite body as described above. Specifically, the present invention provides a rubber composition, containing a cobalt compound by an amount, according to cobalt atoms, in the range of 0.0025 to 0.05 parts by mass with respect to 100 parts by mass of a rubber component.
    Type: Application
    Filed: March 22, 2013
    Publication date: February 19, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Shinichi Musha, Junichi Yamagishi
  • Publication number: 20140020647
    Abstract: A seal member (3) is disposed between a cylinder head cover (1) in which an ignition plug mounting hole (1a) is formed and a plug tube (2) which is inserted in the ignition plug mounting hole (1a). The seal member (3) is provided with: a base section (31) configured to be elastically deformable and inserted into the ignition plug mounting hole (1a); a protrusion section (32) formed so as to protrude outward in the radial direction from the outer peripheral surface of the base section (31) and engaging with a groove (12b) formed in the inner peripheral surface of the ignition plug mounting hole (1a); a seal lip section (33) in elastic contact with the outer peripheral surface of the plug tube (2); and a grip section (34) formed between the base section (31) and the seal lip section (33) and protruding downward from the ignition plug mounting hole (1a).
    Type: Application
    Filed: April 2, 2012
    Publication date: January 23, 2014
    Applicants: MAHLE Filter Systems Japan Corporation, HONDA MOTOR CO., LTD.
    Inventors: Yoshihiro Akiyama, Shinichi Musha
  • Patent number: 8202626
    Abstract: A brass-plated steel wire for reinforcing rubber articles capable of surely improving adhesiveness between brass-plated steel wire and rubber and a method for manufacturing the same.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: June 19, 2012
    Assignee: Kabushiki Kaisha Bridgestone
    Inventors: Shinichi Musha, Kiyotaka Sueyoshi
  • Patent number: 7811709
    Abstract: A negative electrode for a non-aqueous electrolyte secondary cell includes a current collector an, formed on a surface or both surfaces thereof, an active material structure containing an electroconductive material with a low capability of forming a compound with lithium, and the active material structure includes 5% to 80% by weight of active material particles containing a material having a high capability for forming a compound with lithium. The active material structure can include an active material layer containing the active material particles and a surface-covering layer on the active material layer.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: October 12, 2010
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Shinichi Musha, Hitohiko Honda, Yoshiki Sakaguschi, Kiyotaka Yasuda, Akihiro Modeki, Tomoyoshi Matsushima, Takeo Taguchi, Kazuko Taniguchi, Makoto Dobashi
  • Publication number: 20090155620
    Abstract: Problems to be solved by the invention: It is an object of the present invention to provide a brass-plated steel wire for reinforcing rubber articles capable of surely improving adhesiveness between brass-plated steel wire and rubber and a method for manufacturing the same. Means for solving the problem: A brass-plated steel wire 10 for reinforcing rubber articles according to the invention comprises a steel wire having a brass-plating layer 11 thereon, wherein the brass-plating layer 11 has an amorphous portion 11a formed of crystal grains having a grain size of 20 nm or less. It may also be such that the brass-plating layer 11 is of a laminated structure 13 of an amorphous portion 11a on the surface side and a crystalline portion 11b on the inner side, wherein the amorphous portion 11a is formed of crystal grains having a grain size of 20 nm or less and the crystalline portion 11b is formed of crystal grains having a grain size of more than 20 nm.
    Type: Application
    Filed: August 30, 2006
    Publication date: June 18, 2009
    Applicant: KABUSHIKI KAISHA BRIDGESTONE
    Inventors: Shinichi Musha, Kiyotaka Sueyoshi
  • Publication number: 20060147802
    Abstract: A negative electrode for nonaqueous secondary batteries is disclosed. The negative electrode has a pair of current collecting surface layers of which the surfaces are adapted to be brought into contact with an electrolyte and at least one active material layer interposed between the surface layers. The active material layer contains particles of an active material having high capability of forming a lithium compound. The material constituting the surfaces is preferably present over the whole thickness of the active material layer to electrically connect the surfaces so that the electrode exhibits a current collecting function as a whole. The surface layers each preferably have a thickness of 0.3 to 10 ?m.
    Type: Application
    Filed: January 5, 2005
    Publication date: July 6, 2006
    Inventors: Kiyotaka Yasuda, Yoshiki Sakaguchi, Shinichi Musha, Makoto Dobashi, Akihiro Modeki, Tomoyoshi Matsushima, Hitohiko Honda, Takeo Taguchi
  • Publication number: 20060115735
    Abstract: An anode for nonaqueous secondary batteries is disclosed. The anode has a pair of current collecting surface layers of which the surfaces are adapted to be brought into contact with an electrolytic solution and at least one active material layer interposed between the surface layers. The active material layer contains particles of an active material having high capability of forming a lithium compound. The material constituting the surfaces is preferably present over the whole thickness of the active material layer to electrically connect the surfaces so that the electrode exhibits a current collecting function as a whole. The surface layers each preferably have a thickness of 0.3 to 10 ?m.
    Type: Application
    Filed: December 17, 2003
    Publication date: June 1, 2006
    Inventors: Kiyotaka Yasuda, Yoshiki Sakaguchi, Shinichi Musha, Makoto Dobashi, Akihiro Modeki, Tomoyoshi Matsushima, Hitohiko Honda, Takeo Taguchi
  • Publication number: 20060051675
    Abstract: Disclosed is a negative electrode for a nonaqueous secondary battery included of a current collector and an active material structure containing an electro-conductive material having low capability of forming a lithium compound on at least one side of the current collector, the active material structure containing 5 to 80% by weight of active material particles containing a material having high capability of forming a lithium compound. The active material structure preferably has an active material layer containing the active material particles and a surface coating layer formed on the active material layer.
    Type: Application
    Filed: November 25, 2003
    Publication date: March 9, 2006
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Shinichi Musha, Hitohiko Honda, Yoshiki Sakaguchi, Kiyotaka Yasuda, Akihiro Modeki, Tomoyoshi Matsushima, Takeo Taguchi, Kazuko Taniguchi, Makoto Dobashi