Patents by Inventor Takashi Kishi
Takashi Kishi 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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Publication number: 20170018807Abstract: A nonaqueous electrolyte solution secondary battery of the embodiment includes an exterior material, a nonaqueous electrolyte solution, a positive electrode, a negative electrode and a separator sandwiched between the positive electrode and the negative electrode. The nonaqueous electrolyte solution is charged in the exterior material. The nonaqueous electrolyte solution contains at least one of sulfone-based compounds represented by formula 1, a partially fluorinated ether represented by a molecular formula of formula 2, and at least one of lithium salts. The positive electrode is housed in the exterior material. The positive electrode contains a composite oxide represented by L1-xMn1.5-yNi0.5-zMy+zO4 as a positive electrode active material (wherein 0?x?1, 0?(y+z)?0.15, and M represents one, or two or more selected from Mg, Al, Ti, Fe, Co, Ni, Cu, Zn, Ga, Nb, Sn, Zr and Ta). The negative electrode is housed in the exterior material.Type: ApplicationFiled: March 14, 2014Publication date: January 19, 2017Applicant: Kabushiki Kaisha ToshibaInventors: Takashi KISHI, Wen ZHANG, Miho MARUYAMA
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Publication number: 20160222540Abstract: A plating method includes holding a substrate with a substrate holder while bringing a sealing member into pressure contact with a peripheral portion of the substrate to form an enclosed internal space in the substrate holder; performing a first-stage leakage test of the substrate holder by producing a vacuum in the internal space and checking whether pressure in the internal space reaches a predetermined vacuum pressure within a certain period of time; and if the substrate holder has passed the first-stage leakage test, performing a second-stage leakage test of the substrate holder by closing off the internal space after producing the vacuum therein and checking whether a change in the pressure in the internal space reaches a predetermined value within a certain period of time.Type: ApplicationFiled: April 12, 2016Publication date: August 4, 2016Inventors: Yoshio MINAMI, Jumpei FUJIKATA, Takashi KISHI
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Patent number: 9340891Abstract: A plating method includes holding a substrate with a substrate holder while bringing a sealing member into pressure contact with a peripheral portion of the substrate to form an enclosed internal space in the substrate holder; performing a first-stage leakage test of the substrate holder by producing a vacuum in the internal space and checking whether pressure in the internal space reaches a predetermined vacuum pressure within a certain period of time; and if the substrate holder has passed the first-stage leakage test, performing a second-stage leakage test of the substrate holder by closing off the internal space after producing the vacuum therein and checking whether a change in the pressure in the internal space reaches a predetermined value within a certain period of time.Type: GrantFiled: March 22, 2013Date of Patent: May 17, 2016Assignee: Ebara CorporationInventors: Yoshio Minami, Jumpei Fujikata, Takashi Kishi
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Patent number: 9257700Abstract: According to one embodiment, an electrode includes a current collector and an active material-including layer. The active material-including layer includes a first layer and a second layer. The first layer is provided on a surface of the current collector and includes lithium titanium oxide having a spinel structure. The second layer is provided on the first layer and includes a monoclinic ?-type titanium composite oxide.Type: GrantFiled: February 7, 2014Date of Patent: February 9, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yorikazu Yoshida, Kazuhiro Yasuda, Takashi Kishi, Hiroki Inagaki, Norio Takami
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Publication number: 20160036093Abstract: According to one embodiment, a nonaqueous electrolyte battery that includes a positive electrode, a negative electrode, and a nonaqueous electrolyte is provided. The positive electrode includes a positive electrode active material. The negative electrode includes a negative electrode active material that absorbs and releases lithium at 0.4 V vs. Li/Li+ or higher. The nonaqueous electrolyte is dissolved in a nonaqueous solvent that includes ?-butyrolactones substituted by a hydrocarbon substituent at an alpha position.Type: ApplicationFiled: March 17, 2015Publication date: February 4, 2016Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Keigo HOSHINA, Takashi Kishi, Shinsuke Matsuno, Tetsuya Sasakawa, Yoshiyuki Isozaki, Norio Takami, Hidesato Saruwatari
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Patent number: 9246192Abstract: According to one embodiment, a nonaqueous electrolyte battery includes a nonaqueous electrolyte, a positive electrode, a negative electrode and a separator. The nonaqueous electrolyte includes an asymmetric sulfone-based compound and a symmetric sulfone-based compound. The positive electrode includes a composite oxide represented by Li1?xMn1.5?yNi0.5?zMy+zO4 (0?x?1, 0?y+z?0.15, and M is at least one kind of element selected from the group consisting of Mg, Al, Ti, Fe, Co, Ni, Cu, Zn, Ga, Nb, Sn, Zr and Ta). The negative electrode includes a Ti-containing oxide which is capable of absorbing and releasing lithium. The separator includes a nonwoven fabric.Type: GrantFiled: July 27, 2012Date of Patent: January 26, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Takashi Kishi, Norio Takami, Takuya Iwasaki
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Patent number: 9105944Abstract: According to one embodiment, a nonaqueous electrolyte secondary battery includes a nonaqueous electrolytic solution, a positive electrode and a negative electrode is provided. The nonaqueous electrolytic solution comprises a nonaqueous solvent. The nonaqueous solvent comprises from 50 to 95% by volume of a sulfone-based compound represented by the following formula 1: wherein R1 and R2 are each an alkyl group having 1 to 6 carbon atoms and satisfy R1?R2. The positive electrode comprises a composite oxide represented by Li1-xMn1.5-yNi0.5-zMy+zO4. The negative electrode comprises a negative electrode active material being capable of absorbing and releasing lithium at 1 V or more based on a metallic lithium potential.Type: GrantFiled: August 12, 2011Date of Patent: August 11, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Takashi Kishi, Norio Takami, Takuya Iwasaki, Hiroki Inagaki
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Publication number: 20140295289Abstract: According to one embodiment, a nonaqueous electrolyte battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes at least one oxide selected from the group consisting of a first oxide having a spinel structure and represented by LixNi0.5Mn1.5O4, a second metal phosphate having an olivine structure and represented by LixMn1-wFewPO4, and a third oxide having a layered structure and represented by LixNiyMnzCo1-y-zO2. The nonaqueous electrolyte includes a first solvent. The first solvent includes at least one compound selected from the group consisting of trimethyl phosphate, triethyl phosphate, tripropyl phosphate, tributyl phosphate, and fluorinated phosphate ester.Type: ApplicationFiled: March 7, 2014Publication date: October 2, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Norio TAKAMI, Hiroki INAGAKI, Takashi KISHI
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Patent number: 8846229Abstract: According to one embodiment, a non-aqueous electrolyte battery includes an electrode group. The electrode group includes a positive electrode and a negative electrode. At least one of the positive electrode or the negative electrode has a first electrode part and a second electrode part. The first electrode part includes a first metal substrate and an active material-containing part. The second electrode part includes a second metal substrate and an active material-containing part. The first metal substrate has a tensile strength larger than a tensile strength of the second metal substrate. A part of the first electrode part is provided more outside of the electrode group than a part of the second electrode group.Type: GrantFiled: June 29, 2012Date of Patent: September 30, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Tetsuya Sasakawa, Takashi Kishi, Takuya Iwasaki, Hiroki Inagaki, Norio Takami
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Publication number: 20140220416Abstract: According to one embodiment, an electrode includes a current collector and an active material-including layer. The active material-including layer includes a first layer and a second layer. The first layer is provided on a surface of the current collector and includes lithium titanium oxide having a spinel structure. The second layer is provided on the first layer and includes a monoclinic ?-type titanium composite oxide.Type: ApplicationFiled: February 7, 2014Publication date: August 7, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yorikazu YOSHIDA, Kazuhiro Yasuda, Takashi Kishi, Hiroki Inagaki, Norio Takami
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Publication number: 20130255360Abstract: A plating method includes holding a substrate with a substrate holder while bringing a sealing member into pressure contact with a peripheral portion of the substrate to form an enclosed internal space in the substrate holder; performing a first-stage leakage test of the substrate holder by producing a vacuum in the internal space and checking whether pressure in the internal space reaches a predetermined vacuum pressure within a certain period of time; and if the substrate holder has passed the first-stage leakage test, performing a second-stage leakage test of the substrate holder by closing off the internal space after producing the vacuum therein and checking whether a change in the pressure in the internal space reaches a predetermined value within a certain period of time.Type: ApplicationFiled: March 22, 2013Publication date: October 3, 2013Applicant: EBARA CORPORATIONInventors: Yoshio MINAMI, Jumpei FUJIKATA, Takashi KISHI
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Publication number: 20130078530Abstract: According to one embodiment, a nonaqueous electrolyte battery includes a nonaqueous electrolyte, a positive electrode, a negative electrode and a separator. The nonaqueous electrolyte includes an asymmetric sulfone-based compound and a symmetric sulfone-based compound. The positive electrode includes a composite oxide represented by Li1?xMn1.5?yNi0.5?zMy+zO4 (0?x?1, 0?y+z?0.15, and M is at least one kind of element selected from the group consisting of Mg, Al, Ti, Fe, Co, Ni, Cu, Zn, Ga, Nb, Sn, Zr and Ta). The negative electrode includes a Ti-containing oxide which is capable of absorbing and releasing lithium. The separator includes a nonwoven fabric.Type: ApplicationFiled: July 27, 2012Publication date: March 28, 2013Inventors: Takashi KISHI, Norio TAKAMI, Takuya IWASAKI
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Publication number: 20130078500Abstract: According to one embodiment, a non-aqueous electrolyte secondary battery includes a metal container, an electrode group housed in the metal container and including a positive electrode, a negative electrode and a separator interposed between the negative and the positive electrodes, a non-aqueous electrolyte housed in the metal container, a positive electrode lead of which one end is electrically connected to the positive electrode, a negative electrode lead of which one end is electrically connected to the negative electrode, a negative electrode terminal attached to the metal container and electrically connected with the other end of the negative electrode lead, and an Sn alloy film interposed between the negative electrode lead and the negative electrode terminal. The Sn alloy film includes Sn and at least one metal selected from the group consisting of Zn, Pb, Ag, Cu, In, Ga, Bi, Sb, Mg and Al.Type: ApplicationFiled: November 26, 2012Publication date: March 28, 2013Inventors: Norio Takami, Hiroki Inagaki, Takashi Kishi
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Publication number: 20130059184Abstract: According to one embodiment, a non-aqueous electrolyte battery includes an electrode group. The electrode group includes a positive electrode and a negative electrode. At least one of the positive electrode or the negative electrode has a first electrode part and a second electrode part. The first electrode part includes a first metal substrate and an active material-containing part. The second electrode part includes a second metal substrate and an active material-containing part. The first metal substrate has a tensile strength larger than a tensile strength of the second metal substrate. A part of the first electrode part is provided more outside of the electrode group than a part of the second electrode group.Type: ApplicationFiled: June 29, 2012Publication date: March 7, 2013Inventors: Tetsuya SASAKAWA, Takashi Kishi, Takuya Iwasaki, Hiroki Inagaki, Norio Takami
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Patent number: 8349503Abstract: A nonaqueous electrolyte battery, including a case, a positive electrode housed in the case, a negative electrode housed in the case, and a nonaqueous electrolyte containing an ionic liquid and lithium ions of which molar amount is no smaller than 1.8×10?5 mol per mAh of the battery capacity.Type: GrantFiled: January 24, 2006Date of Patent: January 8, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Hidesato Saruwatari, Takashi Kishi, Takashi Kuboki, Norio Takami
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Publication number: 20120058379Abstract: According to one embodiment, a nonaqueous electrolyte secondary battery includes a nonaqueous electrolytic solution, a positive electrode and a negative electrode is provided. The nonaqueous electrolytic solution comprises a nonaqueous solvent. The nonaqueous solvent comprises from 50 to 95% by volume of a sulfone-based compound represented by the following formula 1: wherein R1 and R2 are each an alkyl group having 1 to 6 carbon atoms and satisfy R1?R2. The positive electrode comprises a composite oxide represented by Li1-xMn1.5-yNi0.5-zMy+zO4. The negative electrode comprises a negative electrode active material being capable of absorbing and releasing lithium at 1 V or more based on a metallic lithium potential.Type: ApplicationFiled: August 12, 2011Publication date: March 8, 2012Inventors: Takashi KISHI, Norio TAKAMI, Takuya IWASAKI, Hiroki INAGAKI
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Patent number: 7965062Abstract: It is made possible to keep a nonaqueous electrolyte secondary battery in a charged state for a long period of time and minimize the degradation of the battery. A method for charging a nonaqueous electrolyte secondary battery including a cathode, an anode, and a nonaqueous electrolyte, includes: a first charging step of charging the nonaqueous electrolyte secondary battery at a first current value which increases the voltage of the nonaqueous electrolyte secondary battery; and a second charging step of charging the nonaqueous electrolyte secondary battery at a second current value which decreases the voltage of the nonaqueous electrolyte secondary battery. These two charging steps are repeated alternately.Type: GrantFiled: February 19, 2008Date of Patent: June 21, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Kishi, Takashi Kuboki
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Patent number: 7883797Abstract: A non-aqueous electrolyte battery that contains a molten salt electrolyte and has the enhanced output performances and cycle performances can be provided. The electrolyte has a molar ratio of lithium salt to molten salt of from 0.3 to 0.5, and the non-aqueous electrolyte battery has a positive electrode having a discharge capacity of 1.05 or more times that of a negative electrode thereof.Type: GrantFiled: July 13, 2005Date of Patent: February 8, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Kishi, Takashi Kuboki, Hidesato Saruwatari, Norio Takami
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Publication number: 20100323235Abstract: According to one embodiment, a non-aqueous electrolyte secondary battery includes a metal container, an electrode group housed in the metal container and including a positive electrode, a negative electrode and a separator interposed between the negative and the positive electrodes, a non-aqueous electrolyte housed in the metal container, a positive electrode lead of which one end is electrically connected to the positive electrode, a negative electrode lead of which one end is electrically connected to the negative electrode, a negative electrode terminal attached to the metal container and electrically connected with the other end of the negative electrode lead, and an Sn alloy film interposed between the negative electrode lead and the negative electrode terminal. The Sn alloy film includes Sn and at least one metal selected from the group consisting of Zn, Pb, Ag, Cu, In, Ga, Bi, Sb, Mg and Al.Type: ApplicationFiled: August 20, 2010Publication date: December 23, 2010Inventors: Norio Takami, Hiroki Inagaki, Takashi Kishi
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Patent number: 7833677Abstract: This invention provides a nonaqueous electrolyte battery that has excellent output characteristics, is small in individual difference, and is more stable. The nonaqueous electrolyte battery comprises a negative electrode and a positive electrode that contain or can occlude and release lithium, a lithium salt-containing ionic liquid and is characterized in that the electrolyte contains a cation containing a fluoroalkyl group attached through a methylene chain to a basic structure selected from the group consisting of imidazolium, piperidinium, and pyrrolidinium structures.Type: GrantFiled: March 8, 2007Date of Patent: November 16, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Kishi, Takashi Kuboki, Satoshi Mikoshiba