Patents by Inventor Masashi Otsuki

Masashi Otsuki 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: 9391346
    Abstract: The present invention relates to a non-aqueous electrolyte additive that allows for improved safety and battery characteristics of a non-aqueous electrolyte secondary battery, and in greater detail, the present invention relates to a non-aqueous electrolyte additive that includes a phosphazene compound represented by the following general formula (1): (NPR2)n??(1) wherein each R independently represents fluorine or a secondary or tertiary branched alkoxy group substituted with fluorine, at least one of the Rs represents the secondary or tertiary branched alkoxy group substituted with fluorine, and n is from 3 to 14.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: July 12, 2016
    Assignees: BRIDGESTONE CORPORATION, CENTRAL GLASS COMPANY, LIMITED
    Inventors: Masashi Otsuki, Hirokazu Satou, Shoichi Tsujioka, Aiichiro Fujiwara
  • Patent number: 9312567
    Abstract: The present invention relates to a non-aqueous electrolyte additive that allows for improved safety and battery characteristics of a non-aqueous electrolyte secondary battery, and in greater detail, the present invention relates to a non-aqueous electrolyte additive that includes at least one compound selected from a first compound group consisting of phosphazene compounds represented by the following general formula (1): (NPR2)n??(1) wherein each R independently represents fluorine or a substituent including an organic group substituted with fluorine, at least one of the Rs represents the substituent including an organic group substituted with fluorine, and n is from 3 to 14; and includes at least one compound selected from a second compound group consisting of borate represented by the following general formula (2), bis(oxalato)borate, difluoro(oxalato)borate, tris(oxalato)phosphate, difluoro(bisoxalato)phosphate, and tetrafluoro(oxalato)phosphate: wherein Aa+ represents a cation, and a repres
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: April 12, 2016
    Assignees: BRIDGESTONE CORPORATION, CENTRAL GLASS COMPANY, LIMITED
    Inventors: Masashi Otsuki, Hirokazu Satou, Shoichi Tsujioka, Aiichiro Fujiwara
  • Patent number: 9006335
    Abstract: The present invention relates to a pneumonic tire and a rubber composition used in the same, both of which are capable of preventing static charge build-up on a tire surface without degrading various tire performances such as rolling resistance and so on, and particularly to a rubber composition comprising 10 to 30 parts by mass of an ionic liquid and 5 to 95 parts by mass of silica per 100 parts by mass of a rubber component containing at least 50% by mass of styrene-butadiene rubber, as well as a pneumatic tire using such a rubber composition in a tread portion.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: April 14, 2015
    Assignee: Bridgestone Corporation
    Inventors: Munenori Iizuka, Masashi Otsuki
  • Publication number: 20140023934
    Abstract: The present invention relates to a non-aqueous electrolyte additive that allows for improved safety and battery characteristics of a non-aqueous electrolyte secondary battery, and in greater detail, the present invention relates to a non-aqueous electrolyte additive that includes at least one compound selected from a first compound group consisting of phosphazene compounds represented by the following general formula (1): (NPR2)n??(1) wherein each R independently represents fluorine or a substituent including an organic group substituted with fluorine, at least one of the Rs represents the substituent including an organic group substituted with fluorine, and n is from 3 to 14; and includes at least one compound selected from a second compound group consisting of borate represented by the following general formula (2), bis(oxalato)borate, difluoro(oxalato)borate, tris(oxalato)phosphate, difluoro(bisoxalato)phosphate, and tetrafluoro(oxalato)phosphate: wherein Aa+ represents a cation, and a repre
    Type: Application
    Filed: March 1, 2012
    Publication date: January 23, 2014
    Applicants: CENTRAL GLASS COMPANY, LIMITED, BRIDGESTONE CORPORATION
    Inventors: Masashi Otsuki, Hirokazu Satou, Shoichi Tsujioka, Aiichiro Fujiwara
  • Publication number: 20140017573
    Abstract: The present invention relates to a non-aqueous electrolyte additive that allows for improved safety and battery characteristics of a non-aqueous electrolyte secondary battery, and in greater detail, the present invention relates to a non-aqueous electrolyte additive that includes a phosphazene compound represented by the following general formula (1): (NPR2)n ??(1) wherein each R independently represents fluorine or a secondary or tertiary branched alkoxy group substituted with fluorine, at least one of the Rs represents the secondary or tertiary branched alkoxy group substituted with fluorine, and n is from 3 to 14.
    Type: Application
    Filed: March 1, 2012
    Publication date: January 16, 2014
    Applicants: CENTRAL GLASS COMPANY, LIMITED, BRIDGESTONE CORPORATION
    Inventors: Masashi Otsuki, Hirokazu Satou, Shoichi Tsujioka, Aiichiro Fujiwara
  • Publication number: 20130299336
    Abstract: A method for separating one liquid from a mixed liquid containing at least a first liquid and a second liquid having a different boiling point from that of the first liquid, the method including: spraying the mixed liquid from a spraying means for spraying the mixed liquid, into a container into which a heated gas, having a temperature higher than at least one of the boiling point of the first liquid or the boiling point of the second liquid, is supplied from a heated gas supply means, the container having a discharge port for discharging at least a gas; vaporizing at least the first liquid by allowing the mixed liquid sprayed into the container to contact the heated gas; discharging, through the discharge port of the container, at least a mixed gas that contains the first liquid vaporized in the vaporizing; and separating liquid from the mixed gas.
    Type: Application
    Filed: December 14, 2011
    Publication date: November 14, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Masashi Otsuki, Satoru Okumura, Takahiro Masa
  • Publication number: 20120202929
    Abstract: The present invention relates to a pneumonic tire and a rubber composition used in the same, both of which are capable of preventing static charge build-up on a tire surface without degrading various tire performances such as rolling resistance and so on, and particularly to a rubber composition comprising 10 to 30 parts by mass of an ionic liquid and 5 to 95 parts by mass of silica per 100 parts by mass of a rubber component containing at least 50% by mass of styrene-butadiene rubber, as well as a pneumatic tire using such a rubber composition in a tread portion.
    Type: Application
    Filed: October 15, 2010
    Publication date: August 9, 2012
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Munenori Iizuka, Masashi Otsuki
  • 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: 7951495
    Abstract: This invention relates to a safe electrolyte having no risk of igniting-firing, and more particularly to a non-aqueous electrolyte for a battery comprising an ionic liquid composed of a cation portion and an anion portion, and a supporting salt, characterized in that the cation portion of the ionic liquid contains phosphorus and nitrogen, as well as an electrolyte for an electric double layer capacitor comprising an ionic liquid composed of a cation portion and an anion portion, characterized in that the cation portion of the ionic liquid contains phosphorus and nitrogen.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: May 31, 2011
    Assignee: Bridgestone Corporation
    Inventors: Masashi Otsuki, Hiroshi Kanno
  • Patent number: 7939206
    Abstract: This invention relates to a non-aqueous electrolyte for a cell and an electrolyte for a polymer cell in which the risk of igniting-firing an aprotic organic solvent retained in the cell and leaked out of the cell through vaporization or the like when the temperature of the cell rises abnormally is reduced, and to a non-aqueous electrolyte for a cell and an electrolyte for a polymer cell comprising an aprotic organic solvent and a compound containing phosphorus and/or nitrogen in its molecule and having a difference of a boiling point from that of the aprotic organic solvent of not more than 25° C.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: May 10, 2011
    Assignee: Bridgestone Corporation
    Inventors: Masashi Otsuki, Takao Ogino
  • Publication number: 20100304223
    Abstract: This invention relates to a safe electrolyte having no risk of igniting-firing, and more particularly to a non-aqueous electrolyte for a battery comprising an ionic liquid composed of a cation portion and an anion portion, and a supporting salt, characterized in that the cation portion of the ionic liquid contains phosphorus and nitrogen, as well as an electrolyte for an electric double layer capacitor comprising an ionic liquid composed of a cation portion and an anion portion, characterized in that the cation portion of the ionic liquid contains phosphorus and nitrogen.
    Type: Application
    Filed: December 1, 2006
    Publication date: December 2, 2010
    Inventors: Masashi Otsuki, Hiroshi Kanno
  • Patent number: 7718826
    Abstract: This invention relates to a novel ionic compound being low in a risk of combustion, and more particularly to an ionic compound represented by the following formula (I): (NPR12)n ??(I) [wherein R1s are each independently a halogen element or a monovalent substituent, provided that at least one of R1s is an ionic substituent represented by the following general formula (II): —N+R23X???(II) (wherein R2s are independently a monovalent substituent or hydrogen, provided that at least one of R2s is not hydrogen and R2s may be bonded with each other to form a ring; and X? is a monovalent anion); and n is 3 to 15].
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: May 18, 2010
    Assignee: Bridgestone Corporation
    Inventors: Masashi Otsuki, Hiroshi Kanno
  • Patent number: 7695862
    Abstract: The invention is concerned with an additive for a non-aqueous electrolyte of a secondary battery having a high ability dissolving a support salt and a low viscosity and comprising a phosphazene derivative represented by the following formula (I): (wherein R1 is independently a halogen element or a monovalent substituent; and X is an organic group containing at least one element selected from the group consisting of carbon, silicon, nitrogen, phosphorus, oxygen and sulfur) as well as a non-aqueous electrolyte secondary battery comprising an electrolyte containing this additive and having excellent high-rate characteristics.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: April 13, 2010
    Assignee: Bridgestone Corporation
    Inventors: Masashi Otsuki, Yasuro 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: 7585587
    Abstract: The invention relates to an incombustible separator for a non-aqueous electrolyte cell in which the separator itself does not burn even if the temperature inside the cell becomes high, and more particularly to a separator for a non-aqueous electrolyte cell made of a microporous film formed by a phosphazene derivative and/or an isomer of a phosphazene derivative to a polymer.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: September 8, 2009
    Assignee: Bridgestone Corporation
    Inventors: Hiroshi Kanno, Masashi Otsuki, Shinichi Eguchi
  • 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
  • Patent number: 7553373
    Abstract: A method of producing a silicon carbide single crystal, having: fixing a seed crystal, including setting a seed crystal on a seed crystal fixing part with interposition of an adhesive; applying a uniform pressure on the entire surface of the seed crystal by contacting a flexible bag which is inflatable and deflatable to the seed crystal by charging a gas into the to flexible bag; hardening the adhesive; and sublimating a silicon carbide powder obtained by calcinating a mixture containing at least a silicon source and a resol xylene resin, having a nitrogen content of 100 mass ppm or less and having a content of each impurity elements of 0.1 mass ppm or less, and re-crystallizing for growing a silicon carbide single crystal.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: June 30, 2009
    Assignee: Bridgestone Corporation
    Inventors: Masashi Otsuki, Takayuki Maruyama, Shigeki Endo, Daisuke Kondo, Takuya Monbara
  • Patent number: 7524439
    Abstract: In a positive electrode of a non-aqueous electrolyte battery, at least one metal oxide selected from the group consisting of titanium dioxide, alumina, zinc oxide, chromium oxide, lithium oxide, nickel oxide, copper oxide and iron oxide is dispersed between particles of an active substance for the positive electrode, whereby a discharge capacity or a discharge-recharge capacity of the non-aqueous electrolyte battery is improved.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: April 28, 2009
    Assignee: Bridgestone Corporation
    Inventors: Masashi Otsuki, Shinichi Eguchi, Hiroshi Kanno
  • Publication number: 20080269492
    Abstract: The invention relates to novel ionic compounds with low risk of combustion, more particularly, ionic compounds represented by the general formula (I): (NPR12)n . . . (I) [wherein R1?s are each independently halogeno or a monovalent substituent and at least one of R1?s is a ionic substituent represented by the general formula (II): —N+R23X? . . . (II) (wherein R2?s are each independently a monovalent substituent or hydrogen, with the proviso that at least one of R2?s is not hydrogen, or R2?s may be united to form a ring; and X? is a monovalent anion); and n is 3 to 15].
    Type: Application
    Filed: October 12, 2006
    Publication date: October 30, 2008
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Masashi Otsuki, Hiroshi Kanno
  • Patent number: 7429433
    Abstract: In a positive electrode of a non-aqueous electrolyte battery, at least one alkaline earth metal oxide selected from the group consisting of magnesium oxide, calcium oxide and barium oxide is dispersed between particles of an active substance for positive electrode, whereby a discharge capacity or recharge-discharge capacity of the non-aqueous electrolyte battery just after the preparation and after the storing at high temperature is improved.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: September 30, 2008
    Assignee: Bridgestone Corporation
    Inventors: Masashi Otsuki, Shinichi Eguchi, Hiroshi Kanno