Patents by Inventor Tatsuya Hashimoto
Tatsuya Hashimoto 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: 20160294011Abstract: Provided is a method of manufacturing a lithium secondary battery. This method includes: a step of preparing a positive electrode including a positive electrode mixture layer, a negative electrode including a negative electrode mixture layer, and a nonaqueous electrolyte; and a step of accommodating the positive electrode, the negative electrode, and the nonaqueous electrolyte in a battery case. The nonaqueous electrolyte contains a compound (I) represented by the following formula (I) LiO3S—R—SO3Li (wherein R represents a linear hydrocarbon group having 1 to 10 carbon atoms). When a BET specific surface area of the negative electrode mixture layer is represented by X (m2/g) and when an addition amount of the compound (I) with respect to the total amount of the nonaqueous electrolyte is represented by Y (mass %), the following relationships 3?X?4.3, 0.2?Y?0.4, and (Y/X)?0.093 are satisfied.Type: ApplicationFiled: March 30, 2016Publication date: October 6, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi YAMASAKI, Tatsuya HASHIMOTO
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Publication number: 20160293940Abstract: According to the invention, a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a non-aqueous electrolyte is provided. The negative electrode contains a negative electrode active material, a conductive material, and a binder. When an average particle size of the conductive material is referred to as De, and an average particle size of the binder is referred to as Db, Db?De is satisfied. In other words, the average particle size Db of the binder is equal to or smaller than the average particle size De of the conductive material.Type: ApplicationFiled: March 24, 2016Publication date: October 6, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji KINOSHITA, Tatsuya HASHIMOTO
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Patent number: 9452091Abstract: The absorbent article includes a chassis, a crotch region, an absorbent body, and an elastic member arranged along a side edge in width direction of the crotch region. The oblong absorbent body arranged in the crotch region includes a first narrow width section, a second narrow width section, a center low rigidity section formed along a center line that halves the absorbent article in the width direction and a pair of lateral low rigidity sections provided at both sides of the center low rigidity section in the width direction with a substantially equal interval. Skin contacting face-side sheets and non-skin contacting face-side sheets 6 and 10 are arranged in the crotch region. The initial tensile strength of the skin contacting face-side sheets is lower than that of the non-skin contacting face-side sheets or that of the chassis 2.Type: GrantFiled: August 4, 2010Date of Patent: September 27, 2016Assignee: Uni-Charm CorporationInventors: Hirotomo Mukai, Akiyoshi Kinoshita, Tomoko Tsuji, Norihiko Ishikawa, Tatsuya Hashimoto
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Patent number: 9445950Abstract: The absorbent article includes a chassis, a crotch region, an absorbent body, and an elastic member arranged along a side edge in width direction of the crotch region. The oblong absorbent body arranged in the crotch region includes a first narrow width section, a second narrow width section, a center low rigidity section formed along a center line that halves the absorbent article in the width direction and a pair of lateral low rigidity sections provided at both sides of the center low rigidity section in the width direction with a substantially equal interval. Skin contacting face-side sheets and non-skin contacting face-side sheets 6 and 10 are arranged in the crotch region. The initial tensile strength of the skin contacting face-side sheets is lower than that of the non-skin contacting face-side sheets or that of the chassis 2.Type: GrantFiled: August 4, 2010Date of Patent: September 20, 2016Assignee: Uni-Charm CorporationInventors: Hirotomo Mukai, Akiyoshi Kinoshita, Tomoko Tsuji, Norihiko Ishikawa, Tatsuya Hashimoto
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Publication number: 20160260974Abstract: A lithium ion secondary battery includes: an electrode mixture layer that contains an electrode active material and an organic ferroelectric having a dielectric constant of 25 or higher; and an electrolytic solution that contains lithium bis(fluorosulfonyl)imide and a nonaqueous solvent. A content of the organic ferroelectric is 0.5 parts by mass to 10 parts by mass with respect to 100 parts by mass of the electrode active material. A proportion of a high-polarity solvent having a dielectric constant of 10 or higher in the nonaqueous solvent is 10 vol % or lower.Type: ApplicationFiled: March 4, 2016Publication date: September 8, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroya UMEYAMA, Naoto ONODERA, Naoyuki WADA, Yusuke FUKUMOTO, Tatsuya HASHIMOTO, Yuji YOKOYAMA, Hideki SANO
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Patent number: 9437904Abstract: A lithium ion secondary battery has a battery can, an electrode assembly in the battery can formed by rolling up a positive electrode, a separator, and a negative electrode, an organic electrolyte solution in the battery can, a positive electrode lead in the battery can connected to the positive electrode, a negative electrode lead in the battery can connected to the negative electrode, an overcharge preventer, a cap body sealing the battery can, a positive electrode terminal fixed to the cap body and connected to the positive electrode lead, and a negative electrode terminal fixed to the cap body and connected to the negative electrode lead.Type: GrantFiled: February 21, 2014Date of Patent: September 6, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Kenichi Takahashi, Hirokiyo Mamyoda, Tatsuya Hashimoto
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Publication number: 20160248085Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode composite material layer, the positive electrode composite material layer including: a composite particle including a positive electrode active material, a first conductive material and a binder; and a second conductive material arranged on a surface of the composite particle and having a DBP oil absorption number smaller than that of the first conductive material.Type: ApplicationFiled: December 28, 2015Publication date: August 25, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroya UMEYAMA, Akihiro TANIGUCHI, Shuji TSUTSUMI, Tatsuya HASHIMOTO
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Publication number: 20160240847Abstract: A method of manufacturing a negative electrode for a nonaqueous electrolyte secondary battery, the method includes mixing negative electrode active material particles and ferroelectric particles with each other to form first composite particles in which the ferroelectric particles are attached to the negative electrode active material particles; mixing the first composite particles and a binder with each other to form granulated particles; applying pressure to an aggregate of the granulated particles to form a sheet-shaped negative electrode mixture layer; and arranging the negative electrode mixture layer on a main surface of a negative electrode current collector foil.Type: ApplicationFiled: February 10, 2016Publication date: August 18, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji KINOSHITA, Hiroshi NAGASE, Tatsuya HASHIMOTO
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Publication number: 20160240839Abstract: A manufacturing method for a non-aqueous electrolyte secondary battery includes: forming a powder; forming a sheet-like green compact; and forming a heat-resistant layer. The powder contains composite particles and a solvent. The composite particles contain inorganic filler particles and a binder. The green compact is formed by pressing the powder in a state in which the solvent remains. The heat-resistant layer is formed by disposing the green compact on a surface of at least any of a positive electrode mixture layer and a negative electrode mixture layer after the green compact is formed.Type: ApplicationFiled: February 9, 2016Publication date: August 18, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroya UMEYAMA, Yusuke FUKUMOTO, Naoyuki WADA, Yuji YOKOYAMA, Tatsuya HASHIMOTO, Naoto ONODERA
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Publication number: 20160211554Abstract: A method of manufacturing a nonaqueous electrolyte secondary battery includes: a step of forming a first electrode mixture layer containing an electrode active material and a first binder; a step of forming granulated particles containing the electrode active material and a second binder; a step of forming a second electrode mixture layer, which is formed of the granulated particles, on the first electrode mixture layer; a step of forming a heat resistance layer, which contains an inorganic filler and a third binder, on a surface of a separator; a step of preparing an electrode body by laminating the electrode and the separator such that the second electrode mixture layer and the heat resistance layer are in contact with each other; and a step of heating the electrode body.Type: ApplicationFiled: January 14, 2016Publication date: July 21, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroya Umeyama, Harunari Shimamura, Tatsuya Hashimoto
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Publication number: 20160204438Abstract: An electrode for a nonaqueous electrolyte secondary battery includes an electrode mixture layer. The electrode mixture layer contains a hollow active material particle and a needle-shaped filler having a through-hole that extends through the needle-shaped filler in a longitudinal direction. The needle-shaped filler is arranged on surfaces of the hollow active material particle.Type: ApplicationFiled: January 7, 2016Publication date: July 14, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroya UMEYAMA, Tatsuya HASHIMOTO, Naoyuki WADA, Keiichi TAKAHASHI, Koichi TORIYAMA
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Patent number: 9381121Abstract: A disposable wearing article includes, in an inner end portion of a front waist region, a pair of first side elastic zones spaced apart from each other in a transverse direction and a first middle inelastic zone lying between the first side elastic zones. The article further includes, in an inner end portion of a rear waist region, a pair of second side elastic zones spaced apart from each other in the transverse direction and a second middle inelastic zone lying between the second side elastic zones. A crotch panel includes a pair of leg elastics intersecting with the first and second side elastic zones. A dimension in the transverse direction of the second middle inelastic zone is larger than that of the first middle inelastic zone. A dimension in the transverse direction of the respective first intersection zones is larger than that of the respective second intersection zones.Type: GrantFiled: March 27, 2013Date of Patent: July 5, 2016Assignee: UNICHARM CORPORATIONInventors: Tatsuya Hashimoto, Tetsuo Okubo, Toshifumi Otsubo, Hiroyuki Tanji
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Publication number: 20160190645Abstract: Provided is a method for producing a non-aqueous electrolyte secondary battery with which resistance increase is inhibited during high-temperature storage while good battery properties are retained. The production method of this invention comprises a step of obtaining a positive electrode, a negative electrode and a non-aqueous electrolyte; and a step of placing the positive electrode, the negative electrode and the non-aqueous electrolyte in a battery case. Herein, the non-aqueous electrolyte comprises a fluorine atom-containing supporting salt and a benzothiophene oxide.Type: ApplicationFiled: December 21, 2015Publication date: June 30, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi YAMASAKI, Tomoko NAGAO, Tomohiro NAKANO, Tatsuya HASHIMOTO
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Patent number: 9375363Abstract: A disposable wearing article includes an annular elastic waist panel having a front waist panel and a rear waist panel joined to each other and a crotch panel provided with an absorbent structure and connected to the elastic waist panels. Respective inner end edges of the front and rear waist panels cooperate with lateral edges of the crotch panel extending in a longitudinal direction to form a pair of leg-openings' peripheries. The crotch panel includes a pair of leg sheets connected to both lateral edges of the absorbent structure. The respective leg sheets include inner regions adjoining to the absorbent structure and outer regions adjoining the inner regions so that the inner regions rise above the absorbent structure along both lateral edges of the absorbent structure to define the leg-openings' peripheries and the outer regions are bent outwardly in the transverse direction so as to define the leg-openings' peripheries.Type: GrantFiled: March 27, 2013Date of Patent: June 28, 2016Assignee: UNICHARM CORPORATIONInventors: Tatsuya Hashimoto, Toshifumi Otsubo, Tetsuo Okubo
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Publication number: 20160181619Abstract: A secondary battery includes a wound electrode assembly in which a positive electrode sheet, a negative electrode sheet and a separator are stacked and wound. The positive electrode sheet is provided with a long positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is disposed on the positive electrode current collector. The negative electrode sheet is provided with a long negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is disposed on the negative electrode current collector. The separator is interposed between the positive electrode sheet and the negative electrode sheet. The negative electrode current collector has a first active material layer-free region at one edge of the negative electrode current collector in a winding direction of an axis of the wound electrode assembly.Type: ApplicationFiled: July 30, 2014Publication date: June 23, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tatsuya HASHIMOTO, Keisuke OHARA, Yuji YOKOYAMA, Yusuke FUKUMOTO
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Publication number: 20160156016Abstract: A method of manufacturing a positive electrode includes: preparing a current collector foil having a first main surface and a second main surface; obtaining a granulated body in which a solvent remains by mixing a positive electrode active material, a conductive material, a binder, and the solvent with each other to obtain a mixture and granulating the mixture; obtaining a first positive electrode mixture layer by pressing the granulated body into a sheet shape; arranging the first positive electrode mixture layer on the first main surface; and heating the current collector foil in a state where the first positive electrode mixture layer is arranged on the first main surface, such that a temperature of the current collector foil becomes a softening point of the current collector foil or higher and that a temperature of the first positive electrode mixture layer is lower than a melting point of the binder.Type: ApplicationFiled: November 19, 2015Publication date: June 2, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroya UMEYAMA, Naoyuki WADA, Tatsuya HASHIMOTO, Naoto ONODERA
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Publication number: 20160141597Abstract: A method of manufacturing a negative electrode for a nonaqueous electrolyte secondary battery includes: preparing a copper foil having a first main surface and a second main surface that are opposite sides of the copper foil; obtaining a granulated body by mixing a negative electrode active material, a thickener, a binder, and a solvent with each other to obtain a mixture and by granulating the mixture; obtaining a first negative electrode mixture layer by pressing the granulated body; arranging the first negative electrode mixture layer on the first main surface; and softening the copper foil by bringing the second main surface into contact with a heated roller in a state where the first negative electrode mixture layer is arranged on the first main surface. A temperature of the heated roller is a recrystallization temperature of the copper foil or higher.Type: ApplicationFiled: November 17, 2015Publication date: May 19, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroya UMEYAMA, Naoto ONODERA, Naoyuki WADA, Yusuke FUKUMOTO, Tatsuya HASHIMOTO, Yuji YOKOYAMA
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Publication number: 20160141628Abstract: A nonaqueous electrolyte secondary battery includes: a negative electrode current collector foil; and a negative electrode mixture layer that is arranged on the negative electrode current collector foil. The negative electrode mixture layer contains a plurality of granulated particles. Each of the granulated particles contains a negative electrode active material and a coating film. The coating film is formed on a surface of the negative electrode active material. The coating film includes a first film and a second film. The first film is formed on the surface of the negative electrode active material. The second film is formed on the first film. The first film contains a carboxymethyl cellulose polymer. The second film contains a polyacrylic acid polymer.Type: ApplicationFiled: November 13, 2015Publication date: May 19, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroya UMEYAMA, Tatsuya HASHIMOTO, Naoyuki WADA, Yusuke FUKUMOTO, Naoto ONODERA, Yuji YOKOYAMA
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Patent number: 9333123Abstract: A wearing article includes front and rear side edges respectively joined by seam arrays extending in a longitudinal direction Y, a waist-opening, and a pair of leg-openings. The wearing article further includes an inner sheet, an outer sheet and a liquid-absorbent core sandwiched between these inner and outer sheets. The inner and outer sheets are formed of heat-sealable fibrous nonwoven fabrics containing thermoplastic synthetic resins. Each of the seam arrays of the diaper includes a plurality of seam-welded regions and a seam-nonwelded region left behind in the seam array. In the seam array, the seam-welded regions arranged so as to be aligned in longitudinal and transverse directions, each substantially shaped in a square, partially lack at a position differentiated for every one of specified patterns.Type: GrantFiled: February 10, 2011Date of Patent: May 10, 2016Assignee: UNICHARM CORPORATIONInventors: Toshifumi Otsubo, Tatsuya Hashimoto, Mariko Yamashita, Taishi Nakamura
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Patent number: 9306197Abstract: A rechargeable battery includes a case, a first electrode coupled to the case, a second electrode coupled to the case and the second electrode having a portion extending outside of the case, a short bar electrically coupled to the portion of the second electrode, and an extensible member extending from the case and at least a portion of the short bar being on the extensible member with a gap therebetween. The extensible member is configured to couple the short bar electrically to the first electrode in response to an overcharging condition of the rechargeable battery, thereby short-circuiting the first and second electrodes via the short bar.Type: GrantFiled: November 9, 2012Date of Patent: April 5, 2016Assignees: Samsung SDI Co., Ltd., Robert Bosch GmbHInventors: Sang-Won Byun, Tatsuya Hashimoto, Sang-Eun Cheon, Yong-Sam Kim, Hyo-Seob Kim, Sung-Bae Kim, Soo-Seok Choi