Patents by Inventor Hiromasa Yagi

Hiromasa Yagi 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: 20200144560
    Abstract: A nonaqueous electrolyte secondary battery according to an embodiment includes an electrode assembly, a nonaqueous electrolyte, and a prismatic battery case accommodating the electrode assembly and the nonaqueous electrolyte. The mass energy density of the secondary battery is not less than 200 Wh/kg. The nonaqueous electrolyte secondary battery further includes a non-cellular elastic sheet disposed between the electrode assembly and the battery case. The ratio (A/B) of the thickness (A) of the elastic sheet at 100% SOC to the thickness (B) of the elastic sheet at 0% SOC is 0.05 to 0.3.
    Type: Application
    Filed: February 9, 2018
    Publication date: May 7, 2020
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takuya OKA, Hiromasa YAGI, Yuma KAMIYAMA
  • Patent number: 10644301
    Abstract: An electrode body including a positive electrode plate and a negative electrode plate include a positive electrode tab portion at an end portion on a sealing plate side, a positive electrode collector electrically connected to the positive electrode plate include a collector body portion, a collector extension portion, a collector connection, and a collector connection portion. A pressure-sensitive current breaking mechanism includes a conductive member having an opening portion on an electrode body side, a deformation plate that seals the opening portion, and a collector body portion disposed on the electrode body side of the deformation plate and connected to the deformation plate. The collector extension portion is offset from the collector body portion and is disposed on the sealing plate side with respect to the collector body portion. Positive electrode tab portion is connected to the collector connection bent back at an end portion of the collector extension portion.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: May 5, 2020
    Assignees: SANYO Electric Co., Ltd., PANASONIC CORPORATION
    Inventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, Isao Fujiwara, Hiromasa Yagi
  • Patent number: 10566544
    Abstract: Example embodiments provide a compound of Chemical Formula 1, and an organic photoelectric device, an image sensor, and an electronic device including the same.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: February 18, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hiromasa Shibuya, Tatsuya Imase, Rie Sakurai, Xavier Bulliard, Hyesung Choi, Tadao Yagi, Sung Young Yun, Gae Hwang Lee, Kwang Hee Lee, Dong-Seok Leem, Yeong Suk Choi
  • Patent number: 10535860
    Abstract: A nonaqueous electrolyte secondary battery includes a conductive outer can, an electrode body in the outer can, a conductive seal plate tightly closing an open end of the outer can, and a cathode external terminal on the seal plate. The battery further includes a current cutoff mechanism (CID). The CID is located on the electrical conduction pathway between the cathode external terminal and the electrode body and interrupts the electrical coupling therebetween in response to an increased internal pressure in the battery. The CID includes a thin portion of the seal plate and a diaphragm. The diaphragm deforms to interrupt the electrical coupling between the cathode external terminal and the electrode body in response to the increase in the internal pressure in the battery. A cathode collector lead electrically couples the electrode body and the seal plate, and the seal plate connects the diaphragm and the cathode collector lead.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: January 14, 2020
    Assignee: PANASONIC CORPORATION
    Inventors: Isao Fujiwara, Hiromasa Yagi
  • Publication number: 20190288270
    Abstract: An electrode body including a positive electrode plate and a negative electrode plate include a positive electrode tab portion at an end portion on a sealing plate side, a positive electrode collector electrically connected to the positive electrode plate include a collector body portion, a collector extension portion, a collector connection, and a collector connection portion. A pressure-sensitive current breaking mechanism includes a conductive member having an opening portion on an electrode body side, a deformation plate that seals the opening portion, and a collector body portion disposed on the electrode body side of the deformation plate and connected to the deformation plate. The collector extension portion is offset from the collector body portion and is disposed on the sealing plate side with respect to the collector body portion. Positive electrode tab portion is connected to the collector connection bent back at an end portion of the collector extension portion.
    Type: Application
    Filed: April 16, 2019
    Publication date: September 19, 2019
    Applicants: SANYO Electric Co., Ltd., Panasonic Corporation
    Inventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, Isao Fujiwara, Hiromasa Yagi
  • Publication number: 20190207119
    Abstract: Example embodiments provide a compound of Chemical Formula 1, and an organic photoelectric device, an image sensor, and an electronic device including the same.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hiromasa Shibuya, Tatsuya Imase, Rie Sakurai, Xavier Bulliard, Hyesung Choi, Tadao Yagi, Sung Young Yun, Gae Hwang Lee, Kwang Hee Lee, Dong-Seok Leem, Yeong-Suk Choi
  • Patent number: 10326083
    Abstract: A compound of Chemical Formula 1, and an organic photoelectric device, an image sensor, and an electronic device including the same are disclosed: In Chemical Formula 1, each substituent is the same as defined in the detailed description.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: June 18, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tadao Yagi, Xavier Bulliard, Hyesung Choi, Rie Sakurai, Hiromasa Shibuya, Youn Hee Lim, Sung Young Yun, Gae Hwang Lee, Kwang Hee Lee, Dong-Seok Leem
  • Patent number: 10305084
    Abstract: An electrode body including a positive electrode plate and a negative electrode plate include a positive electrode tab portion at an end portion on a sealing plate side, a positive electrode collector electrically connected to the positive electrode plate include a collector body portion, a collector extension portion, a collector connection, and a collector connection portion. A pressure-sensitive current breaking mechanism includes a conductive member having an opening portion on an electrode body side, a deformation plate that seals the opening portion, and a collector body portion disposed on the electrode body side of the deformation plate and connected to the deformation plate. The collector extension portion is offset from the collector body portion and is disposed on the sealing plate side with respect to the collector body portion. Positive electrode tab portion is connected to the collector connection bent back at an end portion of the collector extension portion.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: May 28, 2019
    Assignees: SANYO Electric Co., Ltd., Panasonic Corporation
    Inventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, Isao Fujiwara, Hiromasa Yagi
  • Patent number: 10243195
    Abstract: A nonaqueous electrolyte secondary battery includes an electrode body and an electrolytic solution in an outer can and a cathode external terminal on the open-end side of the outer can. The battery further includes a current cutoff mechanism (CID). The CID is located on the electrical conduction pathway between the cathode external terminal and the electrode body and interrupts the electrical coupling therebetween in response to an increased internal pressure in the battery. The CID includes a seal lead, a diaphragm, and a dielectric film. The seal lead has a cylindrical opening on the electrode body side. The diaphragm tightly closes the cylindrical opening and, in response to the increased internal pressure in the battery, deforms to interrupt the electrical coupling between the electrode body and the seal lead. The dielectric film is on the electrode body side of the diaphragm.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: March 26, 2019
    Assignee: Panasonic Corporation
    Inventors: Isao Fujiwara, Hiromasa Yagi
  • Publication number: 20170077485
    Abstract: A nonaqueous electrolyte secondary battery includes a conductive outer can, an electrode body in the outer can, a conductive seal plate tightly closing an open end of the outer can, and a cathode external terminal on the seal plate. The battery further includes a current cutoff mechanism (CID). The CID is located on the electrical conduction pathway between the cathode external terminal and the electrode body and interrupts the electrical coupling therebetween in response to an increased internal pressure in the battery. The CID includes a thin portion of the seal plate and a diaphragm. The diaphragm deforms to interrupt the electrical coupling between the cathode external terminal and the electrode body in response to the increase in the internal pressure in the battery. A cathode collector lead electrically couples the electrode body and the seal plate, and the seal plate connects the diaphragm and the cathode collector lead.
    Type: Application
    Filed: July 14, 2016
    Publication date: March 16, 2017
    Inventors: ISAO FUJIWARA, HIROMASA YAGI
  • Publication number: 20170062796
    Abstract: A nonaqueous electrolyte secondary battery includes an electrode body and an electrolytic solution in an outer can and a cathode external terminal on the open-end side of the outer can. The battery further includes a current cutoff mechanism (CID). The CID is located on the electrical conduction pathway between the cathode external terminal and the electrode body and interrupts the electrical coupling therebetween in response to an increased internal pressure in the battery. The CID includes a seal lead, a diaphragm, and a dielectric film. The seal lead has a cylindrical opening on the electrode body side. The diaphragm tightly closes the cylindrical opening and, in response to the increased internal pressure in the battery, deforms to interrupt the electrical coupling between the electrode body and the seal lead. The dielectric film is on the electrode body side of the diaphragm.
    Type: Application
    Filed: June 29, 2016
    Publication date: March 2, 2017
    Inventors: ISAO FUJIWARA, HIROMASA YAGI
  • Publication number: 20160336545
    Abstract: An electrode body including positive electrode plate and negative electrode plate includes a positive electrode tab portion at an end portion on the sealing plate side. The positive electrode plate is electrically connected to a positive electrode collector including a collector body portion and a collector connection. A pressure-sensitive current breaking mechanism includes a conductive member including an opening portion on an electrode body side, a deformation plate that seals the opening portion, and a collector body portion that is disposed on the electrode body side of the deformation plate and that is connected to the deformation plate. The collector connection is disposed between the current breaking mechanism and one of the large-area side walls of the prismatic outer package, and the positive electrode tab portion is connected to the collector connection.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 17, 2016
    Applicants: SANYO Electric Co., Ltd., Panasonic Corporation
    Inventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, Isao Fujiwara, Hiromasa Yagi
  • Publication number: 20160336580
    Abstract: An electrode body including a positive electrode plate and a negative electrode plate include a positive electrode tab portion at an end portion on a sealing plate side, a positive electrode collector electrically connected to the positive electrode plate include a collector body portion, a collector extension portion, a collector connection, and a collector connection portion. A pressure-sensitive current breaking mechanism includes a conductive member having an opening portion on an electrode body side, a deformation plate that seals the opening portion, and a collector body portion disposed on the electrode body side of the deformation plate and connected to the deformation plate. The collector extension portion is offset from the collector body portion and is disposed on the sealing plate side with respect to the collector body portion. Positive electrode tab portion is connected to the collector connection bent back at an end portion of the collector extension portion.
    Type: Application
    Filed: May 10, 2016
    Publication date: November 17, 2016
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, lsao Fujiwara, Hiromasa Yagi
  • Patent number: 9045819
    Abstract: Deterioration of the degree of vacuum in a vacuum chamber is prevented while securing adequate cooling performance by gas cooling. A substrate 21 is provided in a vacuum, and the cooling body 1 is provided close to a film non-formation surface of the substrate 21. A thin film is formed by depositing a film forming material on a film formation surface of the substrate 21 while introducing a cooling gas into between the substrate 21 and the cooling body 1. At this time, a gas which reacts with the film forming material is introduced as the cooling gas.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: June 2, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kazuyoshi Honda, Yasuharu Shinokawa, Hiromasa Yagi, Satoshi Shibutani, Sadayuki Okazaki, Yuko Ogawa, Daisuke Suetsugu
  • Patent number: 9028922
    Abstract: A manufacturing method according to the present invention includes a step of allowing lithium to deposit on a substrate provided with a layer capable of forming a compound together with lithium. A first beta ray and a second beta ray are emitted toward the substrate for irradiation before the deposition step to measure backscattering, from the substrate, of the first beta ray and the second beta ray. The first beta ray and the second beta ray are emitted toward the substrate for irradiation after the deposition step to measure backscattering, from the substrate, of the first beta ray and the second beta ray. A decrement in backscattering of the first beta ray before and after lithium deposition and a decrement in backscattering of the second beta ray before and after lithium deposition are calculated. The deposition step is controlled depending on the decrement in the backscattering of the first beta ray and the decrement in the backscattering of the second beta ray.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: May 12, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiromasa Yagi, Kazuyoshi Honda
  • Patent number: 8668895
    Abstract: In a purifying method for metal grade silicon, metal grade silicon with a silicon concentration not less than 98 wt % and not more than 99.9 wt % is prepared. The metal grade silicon contains aluminum not less than 1000 ppm and not more than 10000 ppm by weight. The metal grade silicon is heated at a temperature not less than 1500° C. and not more than 1600° C. in an inert atmosphere under pressure not less than 100 Pa and not more than 1000 Pa, and maintained at the temperature in the atmosphere for a predetermined period.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: March 11, 2014
    Assignee: Panasonic Corporation
    Inventors: Yuma Kamiyama, Kazuyoshi Honda, Yasuharu Shinokawa, Hiromasa Yagi, Tomofumi Yanagi, Kunihiko Bessho
  • Patent number: 8609279
    Abstract: A rechargeable lithium battery including a negative electrode made by depositing a noncrystalline thin film composed entirely or mainly of silicon on a current collector, a positive electrode and a nonaqueous electrolyte, characterized in that said nonaqueous electrolyte contains carbon dioxide dissolved therein.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: December 17, 2013
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Daizo Jito, Noriyuki Tamura, Nobuhiro Sakitani, Hiroshi Minami, Hiromasa Yagi, Maruo Kamino, Katsunobu Sayama, Yoshio Kato, Shigeki Matsuta
  • Patent number: 8603196
    Abstract: A negative electrode active material layer 3 containing at least one element selected from the group consisting of silicon, germanium, and tin is formed on a negative electrode collector 1. A negative electrode 11 is prepared by forming a lithium metal layer on the negative electrode active material layer 3. Also prepared is a positive electrode 11 having a configuration in which a positive electrode active material layer 6 containing a composite oxide represented by a general formula Li1-xMO2, where 0.2?x?0.6, and M includes at least one transition metal selected from the group consisting of cobalt, nickel, and manganese, is formed on a positive electrode current collector 5. A lithium secondary battery 100 is assembled from the negative electrode 13, the positive electrode 11, and a separator 4.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: December 10, 2013
    Assignee: Panasonic Corporation
    Inventors: Hiromasa Yagi, Kazuyoshi Honda
  • Publication number: 20120121794
    Abstract: A manufacturing method according to the present invention includes a step of allowing lithium to deposit on a substrate provided with a layer capable of forming a compound together with lithium. A first beta ray and a second beta ray are emitted toward the substrate for irradiation before the deposition step to measure backscattering, from the substrate, of the first beta ray and the second beta ray. The first beta ray and the second beta ray are emitted toward the substrate for irradiation after the deposition step to measure backscattering, from the substrate, of the first beta ray and the second beta ray. A decrement in backscattering of the first beta ray before and after lithium deposition and a decrement in backscattering of the second beta ray before and after lithium deposition are calculated. The deposition step is controlled depending on the decrement in the backscattering of the first beta ray and the decrement in the backscattering of the second beta ray.
    Type: Application
    Filed: July 2, 2010
    Publication date: May 17, 2012
    Inventors: Hiromasa Yagi, Kazuyoshi Honda
  • Publication number: 20110281029
    Abstract: Deterioration of the degree of vacuum in a vacuum chamber is prevented while securing adequate cooling performance by gas cooling. A substrate 21 is provided in a vacuum, and the cooling body 1 is provided close to a film non-formation surface of the substrate 21. A thin film is formed by depositing a film forming material on a film formation surface of the substrate 21 while introducing a cooling gas into between the substrate 21 and the cooling body 1. At this time, a gas which reacts with the film forming material is introduced as the cooling gas.
    Type: Application
    Filed: December 10, 2009
    Publication date: November 17, 2011
    Inventors: Kazuyoshi Honda, Yasuharu Shinokawa, Hiromasa Yagi, Satoshi Shibutani, Sadayuki Okazaki, Yuko Ogawa, Daisuke Suetsugu