Patents by Inventor Keisuke Naito
Keisuke Naito 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: 20170117520Abstract: Battery pack includes battery module, metallic installation substrate, metallic attachment member disposed between battery module and installation substrate, metallic fastening part, and insulating member for electrically insulating fastening part and attachment member, and attachment member and installation substrate, from each other, respectively.Type: ApplicationFiled: January 5, 2017Publication date: April 27, 2017Inventors: Tomohiko YOKOYAMA, Shunsuke YASUI, Keisuke NAITO
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Patent number: 9577233Abstract: Battery pack includes battery module, metallic installation substrate, metallic attachment member disposed between battery module and installation substrate, metallic fastening part, and insulating member for electrically insulating fastening part and attachment member, and attachment member and installation substrate, from each other, respectively.Type: GrantFiled: March 7, 2014Date of Patent: February 21, 2017Assignee: SANYO ELECTRIC CO., LTD.Inventors: Tomohiko Yokohama, Shunsuke Yasui, Keisuke Naito
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Patent number: 9549665Abstract: There is provided an endoscope that prevents occurrence of buckling of a flexible body built in an insertion part of the endoscope without damaging other built-in components, and is easy to manufacture without impairing the curving manipulability. The endoscope includes a curvable portion, and an elongated insertion part being inserted into a subject. The endoscope has an elongated flexible body built in the insertion part, and a flexible protective tube that covers an outer periphery of the flexible body. The protective tube has a first region that covers the range of the flexible body, and a second region that covers the range of the soft portion. The elastic constant of the first region is smaller than the elastic constant of the second region, and the external diameter of the protective tube in the first region is larger than the external diameter of the protective tube of the second region.Type: GrantFiled: June 3, 2015Date of Patent: January 24, 2017Assignee: FUJIFILM CorporationInventors: Tatsuya Sugisawa, Keisuke Naito
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Publication number: 20160056433Abstract: Battery pack includes battery module, metallic installation substrate, metallic attachment member disposed between battery module and installation substrate, metallic fastening part, and insulating member for electrically insulating fastening part and attachment member, and attachment member and installation substrate, from each other, respectively.Type: ApplicationFiled: March 7, 2014Publication date: February 25, 2016Applicant: SANYO Electric Co., Ltd.Inventors: TOMOHIKO YOKOYAMA, SHUNSUKE YASUI, KEISUKE NAITO
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Patent number: 9231237Abstract: Batteries 100 are accommodated in a case 20, wherein the batteries 100 each include an opening portion 8a for releasing gas produced in an associated one of the batteries to outside the battery, the case 20 is partitioned into an accommodation section 50 configured to accommodate the batteries 100 and an exhaust passage 60 configured to expel the gas released from at least one of the opening portions 8a of the batteries 100 to outside the case 20, the opening portions 8a of the batteries 100 are allowed to communicate with the exhaust passage 60 through sealed connection passages 40, and a one-way open valve 70 which is configured to open only along a direction from the opening portion 8a of the battery 100 to the exhaust passage 60 is provided in an intermediate portion or at an end of each of the connection passages 40.Type: GrantFiled: May 31, 2011Date of Patent: January 5, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Keisuke Shimizu, Tomohiko Yokoyama, Masato Fujikawa, Keisuke Naito
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Publication number: 20150349314Abstract: Disclosed herein is a battery pack which includes a plurality of battery modules housed in a housing. The battery modules are connected in series to each other via connecting members that connects external terminals of the battery modules to each other. The battery modules are classified into groups, each being comprised of at least two of the battery modules, two terminal ones of which have a potential difference of at most V or less between themselves. A first connecting member connects the external terminals of the battery modules to each other between two adjacent ones of the groups. A second connecting member connects the external terminals of the battery modules to each other within an identical one of the groups. If water penetrates into the housing, the first connecting member is electrically cut off, preferentially relative to the second connecting member.Type: ApplicationFiled: January 8, 2014Publication date: December 3, 2015Inventors: Shunsuke YASUI, Keisuke NAITO, Minari FUKUZUMI, Sigeto NOYA
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Publication number: 20150265135Abstract: There is provided an endoscope that prevents occurrence of buckling of a flexible body built in an insertion part of the endoscope without damaging other built-in components, and is easy to manufacture without impairing the curving manipulability. The endoscope includes a curvable portion, and an elongated insertion part being inserted into a subject. The endoscope has an elongated flexible body built in the insertion part, and a flexible protective tube that covers an outer periphery of the flexible body. The protective tube has a first region that covers the range of the flexible body, and a second region that covers the range of the soft portion. The elastic constant of the first region is smaller than the elastic constant of the second region, and the external diameter of the protective tube in the first region is larger than the external diameter of the protective tube of the second region.Type: ApplicationFiled: June 3, 2015Publication date: September 24, 2015Inventors: Tatsuya SUGISAWA, Keisuke NAITO
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Publication number: 20130095356Abstract: Batteries 100 are accommodated in a case 20, wherein the batteries 100 each include an opening portion 8a for releasing gas produced in an associated one of the batteries to outside the battery, the case 20 is partitioned into an accommodation section 50 configured to accommodate the batteries 100 and an exhaust passage 60 configured to expel the gas released from at least one of the opening portions 8a of the batteries 100 to outside the case 20, the opening portions 8a of the batteries 100 are allowed to communicate with the exhaust passage 60 through sealed connection passages 40, and a one-way open valve 70 which is configured to open only along a direction from the opening portion 8a of the battery 100 to the exhaust passage 60 is provided in an intermediate portion or at an end of each of the connection passages 40.Type: ApplicationFiled: May 31, 2011Publication date: April 18, 2013Applicant: Panasonic CorporationInventors: Keisuke Shimizu, Tomohiko Yokoyama, Masato Fujikawa, Keisuke Naito
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Patent number: 8420249Abstract: A battery module in which a plurality of cells are aligned includes a holder in which the cells are accommodated, a positive electrode current collector plate which is provided to face positive electrode terminals of the cells and electrically connects the positive electrode terminals, and a negative electrode current collector plate which is provided to face negative electrode terminals of the cells and electrically connects the negative electrode terminals, wherein the holder includes a plurality of accommodation sections, the cells are accommodated in the accommodation sections, a spacer made of an elastic member is disposed between the positive electrode current collector plate and the cells, the spacer further includes an extended portion extending toward the negative electrode terminals of the cells, and an edge of the extended portion close to the negative electrode terminals touches the negative electrode current collector plate.Type: GrantFiled: August 24, 2011Date of Patent: April 16, 2013Assignee: Panasonic CorporationInventors: Keisuke Naito, Shinya Geshi
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Publication number: 20130040174Abstract: A module case 23 is provided with a first outlet opening 35 and a first inlet opening 37 formed in side surfaces of the module case 23 opposite to each other. A plurality of battery modules 21 are arranged in a direction to which the first outlet opening 35 is open. The first outlet opening 35 of one of the battery modules 21 is connected to the first inlet opening 37 of an adjacent battery module 21 through a connecting member 57.Type: ApplicationFiled: November 22, 2011Publication date: February 14, 2013Inventors: Hiroshi Takasaki, Shunsuke Yasui, Shinya Geshi, Takashi Nakagawa, Keisuke Naito
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Publication number: 20130011710Abstract: A battery pack of the present invention includes a plurality of battery blocks 6 in each of which a plurality of cells 1 are accommodated and which are arranged adjacent to each other in a first direction with a predetermined space S; and a flat plate shaped bus bar 7 arranged so as to contact first surfaces s1 of adjacent ones of the battery blocks 6 and electrically connecting adjacent ones of the battery blocks 6 together. At least one opening O communicating with the space S is formed in the bus bar 7. The bus bar 7 includes at least one first raised part 8 protruding toward the space S. The first raised part 8 contacts second surfaces s2 of adjacent ones of the battery blocks 6 exposed in the space S.Type: ApplicationFiled: December 22, 2011Publication date: January 10, 2013Inventors: Keisuke Naito, Masatoshi Nagayama
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Publication number: 20120263995Abstract: A battery module in which a plurality of cells are aligned includes a holder in which the cells are accommodated, a positive electrode current collector plate which is provided to face positive electrode terminals of the cells and electrically connects the positive electrode terminals, and a negative electrode current collector plate which is provided to face negative electrode terminals of the cells and electrically connects the negative electrode terminals, wherein the holder includes a plurality of accommodation sections, the cells are accommodated in the accommodation sections, a spacer made of an elastic member is disposed between the positive electrode current collector plate and the cells, the spacer further includes an extended portion extending toward the negative electrode terminals of the cells, and an edge of the extended portion close to the negative electrode terminals touches the negative electrode current collector plate.Type: ApplicationFiled: August 24, 2011Publication date: October 18, 2012Inventors: Keisuke Naito, Shinya Geshi
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Publication number: 20120225335Abstract: A battery module which is able to discharge high-temperature gas emitted from an abnormal battery cell to the outside of a case, without adversely affecting normal battery cells, while suppressing as much as possible an increase in the volume of the battery module due to an exhaust chamber, is provided. The battery module of the present invention includes: a case having an opening, and an exhaust port for discharging gas generated inside the case; a plurality of battery cells each having a terminal plate in which an open part for discharging gas generated inside the cell is provided, the battery cells being arranged inside the case with the terminal plates facing the opening of the case; and a lid attached to the case so as to cover the opening of the case, the lid including a flat plate, and a plurality of convex parts which protrude from a plane including the flat plate toward the inside of the case, and are connected to the terminal plates of the battery cells.Type: ApplicationFiled: July 25, 2011Publication date: September 6, 2012Inventors: Keisuke Naito, Takuya Nakashima
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Publication number: 20120184818Abstract: There is provided an endoscope that prevents occurrence of buckling of a flexible body built in an insertion part of the endoscope without damaging other built-in components, and is easy to manufacture without impairing the curving manipulability. The endoscope includes a curvable portion, and an elongated insertion part being inserted into a subject. The endoscope has an elongated flexible body built in the insertion part, and a flexible protective tube that covers an outer periphery of the flexible body. The protective tube has a first region that covers the range of the flexible body, and a second region that covers the range of the soft portion. The elastic constant of the first region is smaller than the elastic constant of the second region, and the external diameter of the protective tube in the first region is larger than the external diameter of the protective tube of the second region.Type: ApplicationFiled: January 5, 2012Publication date: July 19, 2012Inventors: Tatsuya SUGISAWA, Keisuke Naito