Patents by Inventor Yoshinori Yokoyama

Yoshinori Yokoyama 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: 9142862
    Abstract: A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes an electrode assembly, a nonaqueous electrolyte, and a container. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The container houses the electrode assembly and the nonaqueous electrolyte. The container has a positive electrode terminal and a negative electrode terminal. The positive electrode terminal is electrically connected to the positive electrode. The negative electrode terminal is electrically connected to the negative electrode. The container further includes a short-circuiting mechanism that short-circuits the positive electrode terminal and the negative electrode terminal if the internal pressure rises. The nonaqueous electrolyte contains lithium bis(oxalato)borate (LiBOB).
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: September 22, 2015
    Assignee: SANYO ELECTRIC CO., LTD.
    Inventors: Yoshinori Yokoyama, Takayuki Hattori, Yasuhiro Yamauchi
  • Publication number: 20150243530
    Abstract: A plurality of semiconductor element is formed on a substrate. A plurality of sealing windows and a support portion supporting the plurality of sealing windows are formed on a SOI substrate. The SOI substrate is pressured against the substrate by using a pressurizing member and the plurality of sealing windows of the SOI substrate is bonded to the substrate via a low melting point glass member arranged around the plurality of semiconductor elements. The support portion is separated from the plurality of sealing windows bonded to the substrate.
    Type: Application
    Filed: July 19, 2013
    Publication date: August 27, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshinori Yokoyama, Kazuyo Endo, Jun Fujita, Shinnosuke Soda, Kazuyasu Nishikawa, Yoichi Nogami, Yoshitsugu Yamamoto, Akira Inoue
  • Patent number: 9099734
    Abstract: Disclosed is a highly reliable prismatic secondary battery with a current interruption mechanism that is unlikely to be damaged even if the battery is subjected to shock due to vibration, falling, etc. A second insulating member that has a through-hole is disposed between an inversion plate and the first region of a positive electrode collector, and through the through-hole the first region of the positive electrode collector is electrically connected to the inversion plate. First to third projections to formed around the through-hole formed in the second insulating member fit respectively into first to third openings formed in the first region of the positive electrode collector, and the diameters of their apexes are widened, thus forming first to third fixing portions. Thereby, the second insulating member is robustly joined to the first region of the positive electrode collector.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: August 4, 2015
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yoshinori Yokoyama, Yasuhiro Yamauchi, Toshiyuki Nohma
  • Patent number: 9087123
    Abstract: When there are no evaluation values from a user who has evaluated both contents X and Z, an indirect similarity calculation unit 32 of an arithmetic processing unit 30 of an information processing center 10a indirectly calculates the similarity between the contents X and Z using evaluation values of a content Y whose evaluation value is present from a user who has evaluated both the contents X and Y and whose evaluation value is present from a user who has evaluated both the contents Y and Z. A predicted evaluation value calculation unit 33 calculates a predicted evaluation value from a user who has not evaluated either of the contents X and Z using the similarity between the contents X and Z calculated by the indirect similarity calculation unit 32 and the evaluation values of the contents X and Z. Thus, it is possible to calculate the predicted evaluation values of the contents X and Z which are not directly calculable.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: July 21, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Sayaka Yoshizu, Yoshinori Yokoyama, Naoki Ihara, Yuki Kimura
  • Patent number: 9059460
    Abstract: A prismatic secondary battery 10 includes a prismatic hollow outer body having a mouth and a bottom and storing an electrode assembly, a positive electrode collector, a negative electrode collector, and an electrolyte, a sealing plate 20 sealing up the mouth of the prismatic hollow outer body, and a positive electrode terminal 15 and a negative electrode terminal 17 attached to the sealing plate 20; the sealing plate 20 includes a gas release valve 25 at the center between the positive electrode terminal 15 and the negative electrode terminal 17 and includes an electrolyte pour hole 23 on one side of the gas release valve 25 and, on the other side on the front face, a concaved flat face with a height lower than that of the peripheral portion; and the concaved flat face is formed with an identification code 33.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: June 16, 2015
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takayuki Hattori, Eiji Okutani, Yoshinori Yokoyama, Yasuhiro Yamauchi
  • Patent number: 9053178
    Abstract: When there are no evaluation values from a user who has evaluated both contents X and Z, an indirect similarity calculation unit 32 of an arithmetic processing unit 30 of an information processing center 10a indirectly calculates the similarity between the contents X and Z using evaluation values of a content Y whose evaluation value is present from a user who has evaluated both the contents X and Y and whose evaluation value is present from a user who has evaluated both the contents Y and Z. A predicted evaluation value calculation unit 33 calculates a predicted evaluation value from a user who has not evaluated either of the contents X and Z using the similarity between the contents X and Z calculated by the indirect similarity calculation unit 32 and the evaluation values of the contents X and Z. Thus, it is possible to calculate the predicted evaluation values of the contents X and Z which are not directly calculable.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: June 9, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Sayaka Yoshizu, Yoshinori Yokoyama, Naoki Ihara, Yuki Kimura
  • Publication number: 20150147606
    Abstract: A sealing plate for a prismatic secondary battery includes a pair of mouths for attaching a negative and positive electrode terminals, one mouth being formed near one end in a longitudinal direction of the sealing plate, and the other mouth being formed near the other end, coining areas used for positioning of an insulating member and formed around the pair of mouths on a front face of the sealing plate, a gas release valve and an electrolyte pour hole formed between the pair of mouths, and grooves formed between the respective coining areas and the long side edge of the sealing plate. The groove has a smaller depth near the gas release valve than the depth near the coining area. Even when the sealing plate is produced through forging, the front face has good flatness and the coining areas are unlikely to have a sink mark or a shear drop.
    Type: Application
    Filed: February 5, 2015
    Publication date: May 28, 2015
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Eiji Okutani, Yoshinori Yokoyama, Takayuki Hattori, Yasuhiro Yamauchi
  • Publication number: 20150140370
    Abstract: A prismatic secondary battery 10 includes a prismatic hollow outer body having a mouth and a bottom and storing an electrode assembly, a positive electrode collector, a negative electrode collector, and an electrolyte, a sealing plate 20 sealing up the mouth of the prismatic hollow outer body, and a positive electrode terminal 15 and a negative electrode terminal 17 attached to the sealing plate 20; the sealing plate 20 includes a gas release valve 25 at the center between the positive electrode terminal 15 and the negative electrode terminal 17 and includes an electrolyte pour hole 23 on one side of the gas release valve 25 and, on the other side on the front face, a concaved flat face with a height lower than that of the peripheral portion; and the concaved flat face is formed with an identification code 33.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 21, 2015
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Takayuki Hattori, Eiji Okutani, Yoshinori Yokoyama, Yasuhiro Yamauchi
  • Patent number: 9017843
    Abstract: A prismatic secondary battery includes a prismatic hollow outer body having a mouth and a bottom and storing an electrode assembly, a positive electrode collector, a negative electrode collector, and an electrolyte, a sealing plate sealing up the mouth of the prismatic hollow outer body, and a positive electrode terminal and a negative electrode terminal attached to the sealing plate; the sealing plate includes a gas release valve at the center between the positive electrode terminal and the negative electrode terminal and includes an electrolyte pour hole on one side of the gas release valve and, on the other side on the front face, a concaved flat face with a height lower than that of the peripheral portion; and the concaved flat face is formed with an identification code.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: April 28, 2015
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takayuki Hattori, Eiji Okutani, Yoshinori Yokoyama, Yasuhiro Yamauchi
  • Patent number: 8993155
    Abstract: In a prismatic secondary battery, an internal negative electrode terminal is electrically connected to a collector through through-holes formed in a sealing plate, a gasket, and an insulating member in a manner electrically insulated from the sealing plate. The sealing plate has one face on which a protrusion is formed, an insulating plate has a face that is on the sealing plate and on which a concave portion fitted to the protrusion is formed, each of the protrusion and the concave portion of the insulating plate is provided at one position on respective sides of the through-hole, and at least one of the protrusions has a top face on which a concave portion is formed. The battery having such a structure is unlikely to cause rotary displacement between the insulating plate and the sealing plate even when a rotary torque is applied to the internal terminal.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: March 31, 2015
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Eiji Okutani, Yoshinori Yokoyama, Takayuki Hattori, Yasuhiro Yamauchi
  • Patent number: 8991232
    Abstract: A sealing plate for a prismatic secondary battery includes a pair of mouths for attaching a negative and positive electrode terminals, one mouth being formed near one end in a longitudinal direction of the sealing plate, and the other mouth being formed near the other end, coining areas used for positioning of an insulating member and formed around the pair of mouths on a front face of the sealing plate, a gas release valve and an electrolyte pour hole formed between the pair of mouths, and grooves formed between the respective coining areas and the long side edge of the sealing plate. The groove has a smaller depth near the gas release valve than the depth near the coining area. Even when the sealing plate is produced through forging, the front face has good flatness and the coining areas are unlikely to have a sink mark or a shear drop.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: March 31, 2015
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Eiji Okutani, Yoshinori Yokoyama, Takayuki Hattori, Yasuhiro Yamauchi
  • Patent number: 8980469
    Abstract: A high-reliability prismatic secondary battery with a current interruption mechanism that is unlikely to be damaged even if the battery is subjected to shock is provided. The prismatic secondary battery includes a second insulating member having a first through-hole, the second insulating member being arranged between a first region of a positive electrode collector and an inversion plate. The first region of the positive electrode collector and the inversion plate are electrically connected to each other through the first through-hole. The second insulating member has a plurality of fixing pawl portions. The fixing pawl portions are hooked and fixed to a fixing portion formed on the outer surface side of the conductive member.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 17, 2015
    Assignees: SANYO Electric Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Eiji Okutani, Yoshinori Yokoyama, Yasuhiro Yamauchi, Toshiyuki Nohma, Hironori Harada, Toshihiro Takada, Hiroshi Inukai, Akira Kiyama, Ryuta Morishima
  • Patent number: 8980468
    Abstract: A current interruption mechanism for prismatic secondary battery includes a tubular conductive member electrically connected to a positive electrode external terminal, an inversion plate, and a positive electrode collector connected to the inversion plate. The positive electrode collector has a first region that is parallel to a sealing body and a second region that is connected to a positive electrode plate. The boundaries between the first and second regions are disposed further outward than the inner surface of the tubular conductive member, and at least one of the edge portions, other than the boundaries between the first region and second region, is located further outward than the inner surface of the tubular portion of the conductive member. The current interruption mechanism is unlikely to be damaged even if the battery is subjected to shock due to vibration, falling, etc.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 17, 2015
    Assignees: SANYO Electric Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshinori Yokoyama, Takayuki Hattori, Yasuhiro Yamauchi, Toshiyuki Nohma, Hironori Harada, Toshihiro Takada, Hiroshi Inukai
  • Patent number: 8816493
    Abstract: A semiconductor device includes: a substrate; a semiconductor element on the substrate; an interconnection on the substrate and electrically connected to the semiconductor element; a window frame member on the substrate, surrounding the semiconductor element, and in contact with the interconnection; and a sealing window bonded to the window frame member and encapsulating the semiconductor element. The window frame member is a low melting glass and has a sheet resistance of 106-1010 ?/?.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: August 26, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoichi Nogami, Yoshitsugu Yamamoto, Akira Inoue, Yoshinori Yokoyama, Jun Fujita, Kazuyo Endo, Shinnosuke Soda, Kazuyasu Nishikawa
  • Publication number: 20140212718
    Abstract: Provided is a prismatic battery resistant to the development of short circuits. The prismatic battery has a structure in which a flat electrode including a positive electrode collector with a positive electrode substrate exposed portion and a negative electrode collector with a negative electrode substrate exposed portion is accommodated in an outer can. At least one of the positive electrode collector and the negative electrode collector has a rib. The rib is provided with an easily bendable part (a thin wall, groove, opening, or notch). The rib is bent at the easily bendable part when force is applied to the tip of the rib to prevent the tip from reaching the outer can by means of an insulation sheet to avoid the development of short circuits between the negative electrode collector and the outer can.
    Type: Application
    Filed: August 24, 2012
    Publication date: July 31, 2014
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Yoshinori Yokoyama, Yasuhiro Yamauchi
  • Publication number: 20140175615
    Abstract: A method for manufacturing a semiconductor device includes: forming a semiconductor element on a main surface of a substrate; forming a low melting glass film having a melting point of 450° C. or less on the main surface and the semiconductor element; heat treating the substrate while pressing the low melting glass film toward the main surface of the substrate with a pressurizing jig that is insulating or semi-insulating, and sintering the low melting glass film; and leaving the pressurizing jig on the low melting glass film after sintering the low melting glass film.
    Type: Application
    Filed: September 25, 2013
    Publication date: June 26, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoichi Nogami, Yoshitsugu Yamamoto, Yoshinori Yokoyama, Shinnosuke Soda
  • Patent number: 8722252
    Abstract: In a sealed battery, a metal current carrying block 24A having a protrusion 24b on each of the two opposing faces is placed between positive or negative electrode substrate exposed portions that are divided into two so as to bring the protrusion 24b on each of the two opposing faces into contact with the positive or negative electrode substrate exposed portions that are stacked, a pair of electrodes 31 and 32 for resistance welding are brought into contact with positive electrode collector members 16 or negative electrode collector members that are each placed on the outermost surfaces of the positive electrode substrate exposed portions 14 or negative electrode substrate exposed portions, and resistance welding is performed with pressure applied between the pair of electrodes 31 and 32 for resistance welding.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: May 13, 2014
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takenori Kimura, Taiki Kamifuji, Kousuke Yamamoto, Yoshinori Yokoyama
  • Publication number: 20140077280
    Abstract: A semiconductor device includes: a substrate; a semiconductor element on the substrate; an interconnection on the substrate and electrically connected to the semiconductor element; a window frame member on the substrate, surrounding the semiconductor element, and in contact with the interconnection; and a sealing window bonded to the window frame member and encapsulating the semiconductor element. The window frame member is a low melting glass and has a sheet resistance of 106-1010 ?/?.
    Type: Application
    Filed: June 19, 2013
    Publication date: March 20, 2014
    Inventors: Yoichi Nogami, Yoshitsugu Yamamoto, Akira Inoue, Yoshinori Yokoyama, Jun Fujita, Kazuyo Endo, Shinnosuke Soda, Kazuyasu Nishikawa
  • Publication number: 20140045048
    Abstract: A nonaqueous electrolyte secondary battery includes an electrode assembly, a nonaqueous electrolyte, and a container. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The nonaqueous electrolyte contains lithium difluorophosphate. The container houses the electrode assembly and the nonaqueous electrolyte. The container has a positive electrode terminal and a negative electrode terminal on one end face. The container is roughly parallelepiped in shape. The ratio (height dimension/length dimension) of the height dimension of the container to its length dimension viewed from the front is not more than 0.5.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 13, 2014
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Yoshinori Yokoyama, Takayuki Hattori, Yasuhiro Yamaguchi
  • Publication number: 20140045002
    Abstract: A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes an electrode assembly, a nonaqueous electrolyte, and a container. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The container houses the electrode assembly and the nonaqueous electrolyte. The container has a positive electrode terminal and a negative electrode terminal. The positive electrode terminal is electrically connected to the positive electrode. The negative electrode terminal is electrically connected to the negative electrode. The container further includes a short-circuiting mechanism that short-circuits the positive electrode terminal and the negative electrode terminal if the internal pressure rises. The nonaqueous electrolyte contains lithium bis(oxalato)borate (LiBOB).
    Type: Application
    Filed: August 8, 2013
    Publication date: February 13, 2014
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Yoshinori Yokoyama, Takayuki Hattori, Yasuhiro Yamauchi