Patents by Inventor Takuo Kudoh

Takuo Kudoh 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: 20210399350
    Abstract: A technique for improving the performance of a secondary battery is provided. A secondary battery according to an embodiment includes a first electrode, a second electrode, a first layer disposed on the first electrode, and including a first n-type oxide semiconductor, a second layer disposed on the first layer and including a second n-type oxide semiconductor material and a first insulating material, a third layer disposed on the second layer and including tantalum oxide, and a fourth layer disposed on the third layer and including a second insulating material.
    Type: Application
    Filed: November 7, 2019
    Publication date: December 23, 2021
    Inventors: Tomokazu SAITO, Takuo KUDOH
  • Publication number: 20210193924
    Abstract: An object of the present invention is to provide a power storage device structure in which the number of layers to be laminated is reduced as compared with a conventional power storage device. A power storage device according to the present invention includes a conductive electrode, an insulator and an n-type metal oxide semiconductor, and a charging layer for storing charges and an iridium oxide layer formed of iridium oxide as a material to be used for a dielectric layer of a solid-state electrochromic element are sequentially laminated. Since iridium oxide has a low resistivity, the iridium oxide layer is given the function of the conductive electrode to eliminate the conductive electrode and reduce the number of layers to be laminated.
    Type: Application
    Filed: April 24, 2018
    Publication date: June 24, 2021
    Inventors: Takuo KUDOH, Kazuyuki TSUNOKUNI
  • Patent number: 10991933
    Abstract: A secondary battery according to the present invention includes a first electrode, a second electrode, a charging layer arranged between the first electrode (11) and the second electrode and containing a mixture of an insulating material and a first n-type oxide semiconductor material, an n-type oxide semiconductor layer arranged between the charging layer and the first electrode and containing a second n-type oxide semiconductor material, a p-type oxide semiconductor layer (16) arranged between the charging layer and the second electrode and containing a p-type oxide semiconductor material, a mixture layer arranged between the charging layer and the p-type oxide semiconductor layer and containing a mixture of silicon oxide and a third n-type oxide semiconductor material, and a conductive layer arranged between the first electrode and the n-type oxide semiconductor layer and containing a metal material.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: April 27, 2021
    Assignee: KABUSHIKI KAISHA NIHON MICRONICS
    Inventors: Takuo Kudoh, Harutada Dewa, Hikaru Takano, Tomokazu Saito, Takashi Tonokawa
  • Patent number: 10686210
    Abstract: A method for manufacturing oxide semiconductor secondary cells concurrently and evenly on a plurality of chips. A method for manufacturing a chip on which an oxide semiconductor secondary cell is mounted, the oxide semiconductor secondary cell that is formed by layering a first electrode, a charging function layer, and a second electrode being layered on a circuit. The method includes a layering process to layer and form the oxide semiconductor secondary cells integrally at regions corresponding to a plurality of chips formed on a wafer without separately forming oxide semiconductor secondary cells at regions corresponding to the respective chips, and a separating process to perform separation into individual oxide semiconductor secondary cells corresponding to the respective chips by performing pattern etching on the integrally-formed oxide semiconductor secondary cells to eliminate regions not corresponding to the respective chips except for regions corresponding to the respective chips.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: June 16, 2020
    Assignee: KABUSHIKI KAISHA NIHON MICRONICS
    Inventors: Kazuyuki Tsunokuni, Tatsuo Inoue, Tomokazu Saitoh, Juri Ogasawara, Takashi Tonokawa, Takuo Kudoh
  • Publication number: 20200185701
    Abstract: A secondary battery according to the present invention includes a first electrode, a second electrode, a charging layer arranged between the first electrode (11) and the second electrode and containing a mixture of an insulating material and a first n-type oxide semiconductor material, an n-type oxide semiconductor layer arranged between the charging layer and the first electrode and containing a second n-type oxide semiconductor material, a p-type oxide semiconductor layer (16) arranged between the charging layer and the second electrode and containing a p-type oxide semiconductor material, a mixture layer arranged between the charging layer and the p-type oxide semiconductor layer and containing a mixture of silicon oxide and a third n-type oxide semiconductor material, and a conductive layer arranged between the first electrode and the n-type oxide semiconductor layer and containing a metal material.
    Type: Application
    Filed: July 21, 2017
    Publication date: June 11, 2020
    Inventors: Takuo KUDOH, Harutada DEWA, Hikaru TAKANO, Tomokazu SAITO, Takashi TONOKAWA
  • Publication number: 20200006763
    Abstract: The electricity storage device includes: a first oxide semiconductor layer having a first conductivity-type first oxide semiconductor; a first charge layer disposed on the first oxide semiconductor layer, and composed by including a first insulating material and a first conductivity-type second oxide semiconductor; and a third oxide semiconductor layer disposed on the first charge layer. The third oxide semiconductor layer has hydrogen and a second conductivity-type third oxide semiconductor, and a percentage of the hydrogen with respect to a metal constituting the third oxide semiconductor is equal to or greater than 40%. The embodiments provide an electricity storage device capable of increasing an electricity storage capacity per unit volume (weight).
    Type: Application
    Filed: September 12, 2019
    Publication date: January 2, 2020
    Inventors: Takashi TONOKAWA, Kazuyuki TSUNOKUNI, Takuo KUDOH
  • Patent number: 10347893
    Abstract: Provided is a secondary battery which is small in size and in which current capacity per unit volume can be increased. The present invention provides a secondary battery including two cell units each including a charging layer between a first electrode layer and a second electrode layer, the two cell units being parallel-connected by juxtaposing and connecting a first electrode layer of one cell unit and a first electrode layer of the other cell unit or a second electrode layer of the one cell unit and a second electrode layer of the other cell unit, and by wire-connecting the second electrode layer of the one cell unit and the second electrode layer of the other cell unit or the first electrode layer of the one cell unit and the first electrode layer of the other cell unit.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: July 9, 2019
    Assignees: KABUSHIKI KAISHA NIHON MICRONICS, GUALA TECHNOLOGY CO., LTD.
    Inventors: Takuo Kudoh, Kiyoyasu Hiwada, Tatsuo Inoue, Akira Nakazawa, Nobuaki Terakado
  • Publication number: 20180226674
    Abstract: A method for manufacturing oxide semiconductor secondary cells concurrently and evenly on a plurality of chips. A method for manufacturing a chip on which an oxide semiconductor secondary cell is mounted, the oxide semiconductor secondary cell that is formed by layering a first electrode, a charging function layer, and a second electrode being layered on a circuit. The method includes a layering process to layer and form the oxide semiconductor secondary cells integrally at regions corresponding to a plurality of chips formed on a wafer without separately forming oxide semiconductor secondary cells at regions corresponding to the respective chips, and a separating process to perform separation into individual oxide semiconductor secondary cells corresponding to the respective chips by performing pattern etching on the integrally-formed oxide semiconductor secondary cells to eliminate regions not corresponding to the respective chips except for regions corresponding to the respective chips.
    Type: Application
    Filed: June 20, 2016
    Publication date: August 9, 2018
    Applicant: KABUSHIKI KAISHA NIHON MICRONICS
    Inventors: Kazuyuki TSUNOKUNI, Tatsuo INOUE, Tomokazu SAITOH, Juri OGASAWARA, Takashi TONOKAWA, Takuo KUDOH
  • Patent number: 9972862
    Abstract: Provided is a secondary battery in which a single-layer secondary cell has an all-solid-state secondary cell structure with a storage layer sandwiched between a positive electrode layer and a negative electrode layer and which is superior to a conventional secondary battery with respect to at least one of volume, operation, and positioning. The present invention provides a secondary battery including a folded single-layer secondary cell formed by folding a sheet-shaped single-layer secondary cell, with a storage layer sandwiched between a positive electrode layer and a negative electrode layer, two or more times while alternately reversing the folding direction.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: May 15, 2018
    Assignees: KABUSHIKI KAISHA NIHON MICRONICS, GUALA TECHNOLOGY CO., LTD.
    Inventors: Takuo Kudoh, Kiyoyasu Hiwada, Shozo Izumo, Tomokazu Saito, Akira Nakazawa
  • Patent number: 9865908
    Abstract: There is provided an electrode structure for preventing cracks occurring in a metal electrode due to heating in a manufacturing process in the case of stacking an insulating resin and the metal electrode which are different in thermal expansion coefficient. An electrode for a semiconductor circuit, stacked on a substrate made of an insulating resin, has an electrode structure composed of a main electrode including a slit formed by cutting out a part thereof to prevent occurrence of a crack in a manufacturing process caused by a difference in thermal expansion coefficient from the substrate, and an auxiliary electrode that covers the slit in the main electrode. No slit is provided but a bridge is formed at a portion where the slit in the main electrode and the slit in the auxiliary electrode overlap with each other, thereby eliminating a gap portion where the electrode does not exist.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: January 9, 2018
    Assignees: KABUSHIKI KAISHA NIHON MICRONICS, GUALA TECHNOLOGY CO., LTD.
    Inventors: Takuo Kudoh, Kiyoyasu Hiwada, Akira Nakazawa
  • Patent number: 9859596
    Abstract: The purpose of this invention is to provide a repeatedly chargeable and dischargeable quantum battery that is available for a long period of time without an aging change. The quantum battery is charged by causing an n-type metal oxide semiconductor to have a photo-exited structural change, thereby the electrode of quantum battery is prevented from being oxide and a price reduction and stable operation are possible. The repeatedly usable quantum battery is constituted by laminating; a first metal electrode having an oxidation preventing function, charging layer in which an energy level is formed in the band gap by causing an n-type metal oxide semiconductor covered with an insulating material to have a photo-exited structure change and electrons are trapped at the energy level; p-type metal oxide semiconductor layer; and a second metal electrode having the oxidation preventing function, the electrodes are passive metal layers formed of metals having passive characteristics.
    Type: Grant
    Filed: October 30, 2011
    Date of Patent: January 2, 2018
    Assignees: KABUSHIKI KAISHA NIHON MICRONICS, GUALA TECHNOLOGY CO., LTD.
    Inventors: Takuo Kudoh, Akira Nakazawa, Nobuaki Terakado
  • Patent number: 9748596
    Abstract: Provided is a secondary battery adopting an all-solid-state secondary cell structure with a storage layer sandwiched between a positive electrode layer and a negative electrode layer and which is superior to a conventional secondary battery with respect to at least one of volume, manufacturing, and positioning. The present invention provides a secondary battery including a single-layer secondary cell having a folded structure that a sheet-shaped single-layer secondary cell with a storage layer sandwiched between a positive electrode layer and a negative electrode layer is folded in two or four.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: August 29, 2017
    Assignees: Kabushiki Kaisha Nihon Micronics, Guala Technology Co., Ltd.
    Inventors: Takuo Kudoh, Kiyoyasu Hiwada, Shozo Izumo, Tomokazu Saito, Akira Nakazawa
  • Publication number: 20150188113
    Abstract: Provided is a secondary battery which is small in size and in which current capacity per unit volume can be increased. The present invention provides a secondary battery including two cell units each including a charging layer between a first electrode layer and a second electrode layer, the two cell units being parallel-connected by juxtaposing and connecting a first electrode layer of one cell unit and a first electrode layer of the other cell unit or a second electrode layer of the one cell unit and a second electrode layer of the other cell unit, and by wire-connecting the second electrode layer of the one cell unit and the second electrode layer of the other cell unit or the first electrode layer of the one cell unit and the first electrode layer of the other cell unit.
    Type: Application
    Filed: April 5, 2013
    Publication date: July 2, 2015
    Inventors: Takuo Kudoh, Kiyoyasu Hiwada, Tatsuo Inoue, Akira Nakazawa, Nobuaki Terakado
  • Publication number: 20150155608
    Abstract: There is provided an electrode structure for preventing cracks occurring in a metal electrode due to heating in a manufacturing process in the case of stacking an insulating resin and the metal electrode which are different in thermal expansion coefficient. An electrode for a semiconductor circuit, stacked on a substrate made of an insulating resin, has an electrode structure composed of a main electrode including a slit formed by cutting out a part thereof to prevent occurrence of a crack in a manufacturing process caused by a difference in thermal expansion coefficient from the substrate, and an auxiliary electrode that covers the slit in the main electrode. No slit is provided but a bridge is formed at a portion where the slit in the main electrode and the slit in the auxiliary electrode overlap with each other, thereby eliminating a gap portion where the electrode does not exist.
    Type: Application
    Filed: June 6, 2012
    Publication date: June 4, 2015
    Applicants: GUALA TECHNOLOGY CO., LTD., KABUSHIKI KAISHA NIHON MICRONICS
    Inventors: Takuo Kudoh, Kiyoyasu Hiwada, Akira Nakazawa
  • Publication number: 20150111108
    Abstract: Provided is a secondary battery adopting an all-solid-state secondary cell structure with a storage layer sandwiched between a positive electrode layer and a negative electrode layer and which is superior to a conventional secondary battery with respect to at least one of volume, manufacturing, and positioning. The present invention provides a secondary battery including a single-layer secondary cell having a folded structure that a sheet-shaped single-layer secondary cell with a storage layer sandwiched between a positive electrode layer and a negative electrode layer is folded in two or four.
    Type: Application
    Filed: April 25, 2013
    Publication date: April 23, 2015
    Inventors: Takuo Kudoh, Kiyoyasu Hiwada, Shozo Izumo, Tomokazu Saito, Akira Nakazawa
  • Publication number: 20150072231
    Abstract: Provided is a secondary battery in which a single-layer secondary cell has an all-solid-state secondary cell structure with a storage layer sandwiched between a positive electrode layer and a negative electrode layer and which is superior to a conventional secondary battery with respect to at least one of volume, operation, and positioning. The present invention provides a secondary battery including a folded single-layer secondary cell formed by folding a sheet-shaped single-layer secondary cell, with a storage layer sandwiched between a positive electrode layer and a negative electrode layer, two or more times while alternately reversing the folding direction.
    Type: Application
    Filed: April 25, 2013
    Publication date: March 12, 2015
    Applicant: KABUSHIKI KAISHA NIHON MICRONICS
    Inventors: Takuo Kudoh, Kiyoyasu Hiwada, Shozo Izumo, Tomokazu Saito, Akira Nakazawa
  • Publication number: 20140352775
    Abstract: The purpose of this invention is to provide a repeatedly chargeable and dischargeable quantum battery that is available for a long period of time without an aging change. The quantum battery is charged by causing an n-type metal oxide semiconductor to have a photo-exited structural change, thereby the electrode of quantum battery is prevented from being oxide and a price reduction and stable operation are possible. The repeatedly usable quantum battery is constituted by laminating; a first metal electrode having an oxidation preventing function, charging layer in which an energy level is formed in the band gap by causing an n-type metal oxide semiconductor covered with an insulating material to have a photo-exited structure change and electrons are trapped at the energy level; p-type metal oxide semiconductor layer; and a second metal electrode having the oxidation preventing function, the electrodes are passive metal layers formed of metals having passive characteristics.
    Type: Application
    Filed: October 30, 2011
    Publication date: December 4, 2014
    Applicants: GUALA TECHNOLOGY CO., LTD., KABUSHIKI KAISHA NIHON MICRONICS
    Inventors: Takuo Kudoh, Akira Nakazawa, Nobuaki Terakado