Patents by Inventor Yoshikatsu Seino

Yoshikatsu Seino 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: 20220154013
    Abstract: A solution composition comprising a conductive polymer, a resin, and a solvent is described. The solution composition has an acid value of 0.0 to 14.5 mgKOH/g or a base value of 0.0 to 1.0 mgHCl/g. The solution composition may be applied to a surface such as a steel surface and dried to obtain a film. The obtained film may be used for rust inhibition.
    Type: Application
    Filed: March 12, 2020
    Publication date: May 19, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Shigekazu TOMAI, Yoshikatsu SEINO
  • Publication number: 20190036160
    Abstract: A method of producing a sulfide-based solid electrolyte including bringing an alkali metal sulfide and a sulfur compound into contact in a mixed solvent of a hydrocarbon solvent and a polar aprotic solvent.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 31, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Koichi SATO, Minoru Senga, Yoshikatsu Seino
  • Patent number: 10116002
    Abstract: A method of producing a sulfide-based solid electrolyte including bringing an alkali metal sulfide and a sulfur compound into contact in a mixed solvent of a hydrocarbon solvent and a polar aprotic solvent.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: October 30, 2018
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Koichi Sato, Minoru Senga, Yoshikatsu Seino
  • Patent number: 9806373
    Abstract: A solid electrolyte including an alkali metal element, phosphorous, sulfur and halogen as constituent components.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 31, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Takayoshi Kambara, Tadanori Junke, Ryo Aburatani, Hiroyuki Higuchi, Masaru Nakagawa, Tsuyoshi Ota, Yoshikatsu Seino
  • Patent number: 9793574
    Abstract: A method for producing a solid electrolyte including step of bringing the following into contact with each other in a solvent having a solubility parameter of 9.0 or more: an alkali metal sulfide; one or two or more sulfur compounds selected from phosphorus sulfide, germanium sulfide, silicon sulfide and boron sulfide; and a halogen compound.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: October 17, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yoshikatsu Seino, Takayoshi Kambara, Minoru Senga, Ryo Aburatani, Tadanori Junke, Masakatsu Kimura
  • Publication number: 20170194662
    Abstract: A solid electrolyte including an alkali metal element, phosphorous, sulfur and halogen as constituent components.
    Type: Application
    Filed: February 27, 2017
    Publication date: July 6, 2017
    Applicant: IDEMITSU KOSAN CO., LTD
    Inventors: Takayoshi KAMBARA, Tadanori JUNKE, Ryo ABURATANI, Hiroyuki HIGUCHI, Masaru NAKAGAWA, Tsuyoshi OTA, Yoshikatsu Seino
  • Patent number: 9620811
    Abstract: A solid electrolyte including an alkali metal element, phosphorous, sulfur and halogen as constituent components.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: April 11, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Takayoshi Kambara, Tadanori Junke, Ryo Aburatani, Hiroyuki Higuchi, Masaru Nakagawa, Tsuyoshi Ota, Yoshikatsu Seino
  • Patent number: 9362591
    Abstract: A positive electrode mixture including a positive electrode active material represented by the following formula (1); and a solid electrolyte that comprises Li and S: aLi2MnO3bLiNi1-yM1yO2-cLiM2vM3wM4xO2??(1) wherein M1 is one or more elements selected from Co, Mn, Al, Fe, Cu, V, Zn and Cr; M2, M3 and M4 are independently one or more elements selected from Ni, Co, Mn, Al, Fe, Cu, V, Zn and Cr; M2, M3 and M4 are elements different from each other; a, b and c satisfy a+b+c=1, 0<a<1, 0<b<1 and 0<c<1; y satisfies 0?y?1; and v, w and x satisfy v+w+x=1, and satisfy 0?v?1, 0?w?1 and 0?x?1.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: June 7, 2016
    Assignee: SANTOKU CORPORATION
    Inventors: Tadatoshi Murota, Masatoshi Kusatsu, Yoshikatsu Seino, Masakatsu Kimura, Tsuyoshi Ota
  • Publication number: 20160104916
    Abstract: A method for producing a solid electrolyte including step of bringing the following into contact with each other in a solvent having a solubility parameter of 9.0 or more: an alkali metal sulfide; one or two or more sulfur compounds selected from phosphorus sulfide, germanium sulfide, silicon sulfide and boron sulfide; and a halogen compound.
    Type: Application
    Filed: April 21, 2014
    Publication date: April 14, 2016
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yoshikatsu SEINO, Takayoshi KAMBARA, Minoru SENGA, Ryo ABURATANI, Tadanori JUNKE, Masakatsu KIMURA
  • Publication number: 20160104917
    Abstract: A method of producing a sulfide-based solid electrolyte including bringing an alkali metal sulfide and a sulfur compound into contact in a mixed solvent of a hydrocarbon solvent and a polar aprotic solvent.
    Type: Application
    Filed: May 30, 2014
    Publication date: April 14, 2016
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Koichi SATO, Minoru SENGA, Yoshikatsu SEINO
  • Publication number: 20150221978
    Abstract: A positive electrode mixture including a positive electrode active material represented by the following formula (1); and a solid electrolyte that comprises Li and S: aLi2MnO3bLiNi1-yM1yO2-cLiM2vM3wM4xO2 ??(1) wherein M1 is one or more elements selected from Co, Mn, Al, Fe, Cu, V, Zn and Cr; M2, M3 and M4 are independently one or more elements selected from Ni, Co, Mn, Al, Fe, Cu, V, Zn and Cr; M2, M3 and M4 are elements different from each other; a, b and c satisfy a+b+c=1, 0<a<1, 0<b<1 and 0<c<1; y satisfies 0?y?1; and v, w and x satisfy v+w+x=1, and satisfy 0?v?1, 0?w?1 and 0?x?1.
    Type: Application
    Filed: July 25, 2013
    Publication date: August 6, 2015
    Inventors: Tadatoshi Murota, Masatoshi Kusatsu, Yoshikatsu Seino, Masakatsu Kimura, Tsuyoshi Ota
  • Patent number: 8962194
    Abstract: A lithium-ion-conducting sulfide-based crystallized glass including: lithium (Li), phosphorus (P), and sulfur (S) elements, wherein the glass has diffraction peaks at 2?=17.8±0.3 deg, 18.2±0.3 deg, 19.8±0.3 deg, 21.8±0.3 deg, 23.8±0.3 deg, 25.9±0.3 deg, 29.5±0.3 deg and 30.0±0.3 deg in X-ray diffraction (CuK?: ?=1.5418 ?).
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: February 24, 2015
    Assignees: Idemitsu Kosan Co., Ltd.
    Inventors: Minoru Senga, Yoshikatsu Seino, Masahiro Tatsumisago, Akitoshi Hayashi
  • Publication number: 20140302382
    Abstract: A solid electrolyte including an alkali metal element, phosphorous, sulfur and halogen as constituent components.
    Type: Application
    Filed: November 2, 2012
    Publication date: October 9, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Takayoshi Kambara, Tadanori Junke, Ryo Aburatani, Hiroyuki Higuchi, Masaru Nakagawa, Tsuyoshi Ota, Yoshikatsu Seino
  • Publication number: 20120028128
    Abstract: There is provided an all-solid lithium battery having excellent output characteristics. The battery has a cathode, an electrolyte layer, and an anode. The cathode contains a cathode active material represented by formula (1) and a sulfide solid electrolyte, and the electrolyte layer contains a sulfide solid electrolyte: LiaNibCocMndMeOf+???(1) (1.01?a?1.05; f: 2 or 4; ?: not less than ?0.2 and not more than 0.2; M: Mg, Ca, Y, rare earth elements, etc.; provided that when f=2, 0?b?1, 0?c?1, 0?d?1, 0?e?0.5, and b+c+d+e=1; when f=4, 0?b?2, 0?c?2, 0?d?2, 0?e?1, and b+c+d+e=2).
    Type: Application
    Filed: March 18, 2010
    Publication date: February 2, 2012
    Applicant: SANTOKU CORPORATION
    Inventors: Yoshikatsu Seino, Tadatoshi Murota, Tetsu Fujiwara
  • Patent number: 8084160
    Abstract: A method of purifying lithium sulfide wherein lithium sulfide obtained by reacting lithium hydroxide with hydrogen sulfide in an aprotic organic solvent is washed with an organic solvent at a temperature of 100° C. or higher. Impurities contained in lithium sulfide can be reduced by the method of purification.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: December 27, 2011
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yoshikatsu Seino, Minoru Senga
  • Patent number: 8053116
    Abstract: Disclosed is a lithium ion-conductive solid electrolyte exhibiting high lithium ion conductivity even at room temperature which is hardly oxidized and free from problems of toxicity and contains as components lithium (Li) element, boron (B) element, sulfur (S) element, and oxygen (O) element, and the ratio between sulfur element and oxygen element (O/S) is 0.01 to 1.43.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: November 8, 2011
    Assignees: Idemitsu Kosan Co., Ltd., National Institute for Materials Science
    Inventors: Yoshikatsu Seino, Kazunori Takada
  • Patent number: 8012631
    Abstract: A solid electrolyte including a lithium (Li) element, a phosphorus (P) element and a sulfur (S) element, the 31P MAS NMR spectrum thereof having a peak ascribed to a crystal at 90.9±0.4 ppm and 86.5±0.4 ppm; and the ratio (xc) of the crystal in the solid electrolyte being from 60 mol % to 100 mol %.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: September 6, 2011
    Assignee: Idemitsu Kosan Co., Ltd
    Inventors: Yoshikatsu Seino, Masaru Nakagawa, Minoru Senga, Masatoshi Shibata
  • Publication number: 20100151335
    Abstract: A solid electrolyte sheet including: 80 to 99 wt % of an inorganic solid electrolyte, and 1 to 20 wt % of a binder; the inorganic solid electrolyte being obtainable by firing a raw material containing lithium sulfide (Li2S) with phosphorus pentasulfide (P2S5), or elemental phosphorus and elemental sulfur.
    Type: Application
    Filed: July 27, 2006
    Publication date: June 17, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Minoru Senga, Yoshikatsu Seino
  • Publication number: 20090159839
    Abstract: A solid electrolyte including a lithium (Li) element, a phosphorus (P) element and a sulfur (S) element, the 31P MAS NMR spectrum thereof having a peak ascribed to a crystal at 90.9±0.4 ppm and 86.5±0.4 ppm; and the ratio (xc) of the crystal in the solid electrolyte being from 60 mol % to 100 mol %.
    Type: Application
    Filed: November 28, 2006
    Publication date: June 25, 2009
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Yoshikatsu Seino, Masaru Nakagawa, Minoru Senga, Masatoshi Shibata
  • Publication number: 20090011339
    Abstract: Disclosed is a lithium ion-conductive solid electrolyte exhibiting high lithium ion conductivity even at room temperature which is hardly oxidized and free from problems of toxicity and contains as components lithium (Li) element, boron (B) element, sulfur (S) element, and oxygen (O) element, and the ratio between sulfur element and oxygen element (O/S) is 0.01 to 1.43.
    Type: Application
    Filed: January 10, 2006
    Publication date: January 8, 2009
    Applicant: Idemitsu Kosan Co., Ltd
    Inventors: Yoshikatsu Seino, Kazunori Takada