Patents by Inventor Yasuo Horikawa

Yasuo Horikawa 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: 20130197179
    Abstract: Provided is a copolymer of a conjugated diene compound and a non-conjugated olefin, the copolymer being a random copolymer including randomly arranged monomer units of the conjugated diene compound and of the non-conjugated olefin, in which the non-conjugated olefin is preferably an acyclic olefin, the non-conjugated olefin preferably has 2 to 10 carbon atoms, and specific examples of the non-conjugated olefin preferably include ethylene, propylene, and 1-butene.
    Type: Application
    Filed: July 26, 2011
    Publication date: August 1, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yasuo Horikawa, Shojiro Kaita, Olivier Tardif, Junko Matsushita
  • Publication number: 20130184402
    Abstract: Provided is a copolymer of a conjugated diene compound and a non-conjugated olefin, the copolymer being a tapered copolymer including: at least one of a block sequence including monomer units of the conjugated diene compound and a block sequence including monomer units of the non-conjugated olefin; and a random sequence including randomly arranged monomer units of the conjugated diene compound and monomer units of the non-conjugated olefin.
    Type: Application
    Filed: July 26, 2011
    Publication date: July 18, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yasuo Horikawa, Shojiro Kaita, Olivier Tardif, Junko Matsushita
  • Patent number: 8257870
    Abstract: A non-aqueous electrolyte for a battery comprises a non-aqueous solvent containing a specified cyclic phosphazene compound and a specified difluorophosphate compound, a specified aniline derivative and a support salt.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: September 4, 2012
    Assignee: Bridgestone Corporation
    Inventor: Yasuo Horikawa
  • Publication number: 20120196993
    Abstract: This invention relates to a method for producing a copolymer of a conjugated diene compound and an unconjugated olefin other than the conjugated diene compound having a high cis-1,4 bond content of a conjugated diene compound portion, and more particularly to a method for producing a copolymer characterized by comprising a step of polymerizing a conjugated diene compound and an unconjugated olefin other than the conjugated diene compound in the presence of a polymerization catalyst composition including at least one complex selected from a metallocene complex represented by the following general formula (I): (wherein M is a lanthanoid element, scandium, or yttrium, and CpR is independently a non-substituted or substituted indenyl, and Ra-Rf are independently an alkyl group having a carbon number of 1-3 or a hydrogen atom, and L is a neutral Lewis base, and w is an integer of 0-3) and so on.
    Type: Application
    Filed: July 30, 2010
    Publication date: August 2, 2012
    Applicant: BRIDGESTONE CORPORTION
    Inventors: Shojiro Kaita, Olivier Tardif, Yasuo Horikawa
  • Patent number: 8168831
    Abstract: A non-aqueous electrolyte cell comprises a positive electrode, a negative electrode and a non-aqueous electrolyte containing a support salt. The non-aqueous electrolyte further comprises a phosphazene derivative. The phosphazene derivative having a specified structure functions as an electrode stabilizing agent or a non-combustion agent.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: May 1, 2012
    Assignee: Bridgestone Corporation
    Inventors: Masashi Otsuki, Shigeki Endo, Takao Ogino, Yasuo Horikawa
  • Patent number: 7947399
    Abstract: This invention relates to a non-aqueous electrolyte for a battery having an excellent safety and a non-aqueous electrolyte battery comprising such a non-aqueous electrolyte and having a high safety, and more particularly to a non-aqueous electrolyte for a battery comprising a phosphine oxide compound having P—F bond and/or P—NH2 bond in its molecule and a support salt, as well as a non-aqueous electrolyte battery comprising such a non-aqueous electrolyte for the battery, a positive electrode and a negative electrode.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: May 24, 2011
    Assignee: Bridgestone Corporation
    Inventors: Yasuo Horikawa, Shinichi Eguchi, Masashi Ohtsuki
  • Publication number: 20100285373
    Abstract: This invention relates to a non-aqueous electrolyte having high non-combustibility and a non-aqueous electrolyte secondary power source having high safety and exhibiting stable performance even under high load conditions or low-temperature conditions, and more particularly to a non-aqueous electrolyte characterized by comprising a cyclic phosphazene compound represented by the following general formula (I): (NPR2)n ??(I) [wherein Rs are independently fluorine, an alkoxy group or an aryloxy group and n is 3-4], a non-aqueous solvent, LiPF6 and at least one lithium amide selected from the group consisting of Li(FSO2)2N, Li(CF3SO2)2N and Li(C2F5SO2)2N, as well as a non-aqueous electrolyte secondary power source comprising the non-aqueous electrolyte, a positive electrode and a negative electrode.
    Type: Application
    Filed: November 20, 2008
    Publication date: November 11, 2010
    Applicant: Bridgestone Corporation
    Inventor: Yasuo Horikawa
  • Publication number: 20100062345
    Abstract: This invention relates to a non-aqueous electrolyte for a battery having high flame retardance and capable of giving high heat resistance to a positive electrode material of a battery, and more particularly to a non-aqueous electrolyte for a battery characterized by comprising a non-aqueous solvent containing a cyclic phosphazene compound represented by the following general formula (I): (NPR2)n ??(I) [wherein Rs are independently fluorine, an alkoxy group or an aryloxy group; and n is 3-4] and at least one methyl ester compound selected from the group consisting of methyl acetate, methyl propionate and methyl butyrate, and a support salt.
    Type: Application
    Filed: April 3, 2008
    Publication date: March 11, 2010
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Yasuo Horikawa
  • Publication number: 20090253035
    Abstract: A non-aqueous electrolyte cell comprises a positive electrode, a negative electrode and a non-aqueous electrolyte containing a support salt. The non-aqueous electrolyte further comprises a phosphazene derivative. The phosphazene derivative having a specified structure functions as an electrode stabilizing agent or a non-combustion agent.
    Type: Application
    Filed: June 4, 2009
    Publication date: October 8, 2009
    Applicant: Bridgestone Corporation
    Inventors: Masashi OTSUKI, Shigeki Endo, Takao Ogino, Yasuo Horikawa
  • Patent number: 7560595
    Abstract: A non-aqueous electrolyte cell comprises a positive electrode, a negative electrode and a non-aqueous electrolyte containing a support salt. The non-aqueous electrolyte further comprises a phosphazene derivative. The phosphazene derivative having a specified structure functions as an electrode stabilizing agent or a non-combustion agent.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: July 14, 2009
    Assignee: Bridgestone Corporation
    Inventors: Masashi Otsuki, Shigeki Endo, Takao Ogino, Yasuo Horikawa
  • Publication number: 20080254361
    Abstract: This invention relates to a non-aqueous electrolyte for a battery capable of simultaneously establishing a high flame retardance and excellent battery performances, and more particularly to a non-aqueous electrolyte for a battery comprising a non-aqueous solvent and a support salt, characterized in that the non-aqueous electrolyte for the battery further contains a fluorophosphate compound represented by the following general formula (I): [wherein R1s are independently fluorine, an alkoxy group or an aryloxy group and at least one of two R1s is the alkoxy group or the aryloxy group, provided that two R1s may be bonded with each other to form a ring].
    Type: Application
    Filed: March 20, 2006
    Publication date: October 16, 2008
    Applicant: Bridgestone Corporation
    Inventor: Yasuo Horikawa
  • Publication number: 20080153005
    Abstract: This invention relates to a non-aqueous electrolyte exhibiting a non-combustibility even under a condition having a higher oxygen concentration, and more particularly to a non-aqueous electrolyte characterized by comprising a non-aqueous solvent containing a cyclic phosphazene compound represented by the following general formula (I): (NPR12)n ??(I) [wherein R1s are independently a halogen element or a monovalent substituent; and n is 3-4] and a fluorophosphate compound represented by the following general formula (II): [wherein R2s are independently a halogen element, an alkoxy group or an aryloxy group, and at least one of the two R2s is the alkoxy group or the aryloxy group], and a support salt.
    Type: Application
    Filed: October 4, 2005
    Publication date: June 26, 2008
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yasuo Horikawa, Masashi Otsuki, Shinichi Eguchi, Hiroshi Kanno
  • Publication number: 20080020285
    Abstract: A non-aqueous electrolyte for a battery comprises a non-aqueous solvent containing a specified cyclic phosphazene compound and a specified difluorophosphate compound, a specified aniline derivative and a support salt.
    Type: Application
    Filed: July 13, 2007
    Publication date: January 24, 2008
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Yasuo Horikawa
  • Publication number: 20080020276
    Abstract: A non-aqueous electrolyte for a battery comprises a non-aqueous solvent containing a specified cyclic phosphazene compound and a specified difluorophosphate compound, a dicarboxylic anhydride compound having a cyclic structure and a support salt.
    Type: Application
    Filed: July 23, 2007
    Publication date: January 24, 2008
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Yasuo Horikawa
  • Publication number: 20070202417
    Abstract: This invention relates to a non-aqueous electrolyte for a battery having an excellent safety and a non-aqueous electrolyte battery comprising such a non-aqueous electrolyte and having a high safety, and more particularly to a non-aqueous electrolyte for a battery comprising a phosphine oxide compound having P—F bond and/or P—NH2 bond in its molecule and a support salt, as well as a non-aqueous electrolyte battery comprising such a non-aqueous electrolyte for the battery, a positive electrode and a negative electrode.
    Type: Application
    Filed: March 29, 2005
    Publication date: August 30, 2007
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yasuo Horikawa, Shinichi Eguchi, Masashi Ohtsuki
  • Publication number: 20070183954
    Abstract: This invention relates to an additive for a non-aqueous electrolyte in a battery having a sufficiently high boiling point and capable of ensuring a sufficient safety of an electrolyte even in an emergency such as the short-circuiting or the like without being vaporized in the use under high temperature and capable of giving excellent low-temperature characteristics, and more particularly to an additive for a non-aqueous electrolyte in a battery, which is composed of a phosphazene compound represented by the formula of (NPX2)n (wherein Xs are independently a halogen element, and n is an integer of 3-15) and containing at least two kinds of halogen elements.
    Type: Application
    Filed: March 2, 2005
    Publication date: August 9, 2007
    Inventors: Masashi Ohtsuki, Yasuo Horikawa, Shinichi Eguchi
  • Patent number: 7014585
    Abstract: The present invention provides a blade-type tensioner system for a chain that can easily improve spring properties. A blade-type tensioner includes a blade shoe and a blade spring positioned on the back side of chain sliding surface of the blade shoe so as to impart tension to a chain through the blade shoe. The blade shoe is pivotably supported around a shoulder bolt inserted into a proximal end portion of the blade shoe, and a distal end portion of the blade shoe is slidably supported on a supporting face provided in the engine. The distal end portion of the blade shoe contacts a flat, first supporting face at a point. When tension in the chain is increased, the distal end portion contacts a concave, second supporting face at a point which is continuous with the first supporting face.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: March 21, 2006
    Assignee: BorgWarner Morse TEC Japan K.K.
    Inventors: Yasuo Horikawa, Toru Okazaki, Hiroyoshi Mitsuhashi
  • 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: 20040191635
    Abstract: A non-aqueous electrolyte cell comprises a positive electrode, a negative electrode and a non-aqueous electrolyte containing a support salt. The non-aqueous electrolyte further comprises a phosphazene derivative. The phosphazene derivative having a specified structure functions as an electrode stabilizing agent or a non-combustion agent.
    Type: Application
    Filed: January 5, 2004
    Publication date: September 30, 2004
    Inventors: Masashi Otsuki, Shigeki Endo, Takao Ogino, Yasuo Horikawa
  • Publication number: 20040030053
    Abstract: The present invention provides a process for producing surface-modified rubber that is useful as a recycled material having characteristics inherent in vulcanized rubber, wherein the surface-modified rubber is obtained in such a manner that waste vulcanized rubber resulting from scrap tires and so on is dipped in a silane-coupling agent diluted with a solvent to improve the adhesiveness of the rubber surface. Such a silane-coupling agent preferably has a mercapto group or an S—S bond and is used in such a manner that the agent is diluted so as to have a content of 0.5 to 5%. Furthermore, the present invention provides a process for producing surface-modified rubber, obtained by modifying the surface of vulcanized rubber by corona discharge treatment or the like, having a contact angle of 80 degrees or less. In this process, it is preferable that the vulcanized rubber is further treated with a silane-coupling agent.
    Type: Application
    Filed: May 12, 2003
    Publication date: February 12, 2004
    Inventors: Ryuji Izumoto, Mitsuaki Maeda, Yasuo Horikawa