Patents by Inventor Kohji Matsuoka

Kohji Matsuoka 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: 11955640
    Abstract: An inorganic particle layer for use in an electrode of a non-aqueous electrolyte power storage element is provided. The inorganic particle layer includes an inorganic particle and a polymer. The inorganic particle is insulating and has a surface potential. The polymer has an ionic functional group (A) and an ion-conducting functional group (B) each charged opposite to the surface potential of the inorganic particle. The inorganic particle and the polymer are bonded to each other.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: April 9, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuu Zama, Masahiro Masuzawa, Kohji Matsuoka, Hideo Yanagita, Ryuji Higashi, Anna Hirowatari
  • Patent number: 11909031
    Abstract: A disclosed film electrode includes an electrode base, and an active material layer formed on the electrode base, and a resin layer adhering to at least one of a peripheral portion of the active material layer and a surface of the active material layer in a direction extending along a plane of the electrode base.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: February 20, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Masahiro Masuzawa, Toru Ushirogochi, Hideo Yanagita, Yuu Zama, Aya Yoshida, Shigeo Takeuchi, Anna Hirowatari, Okitoshi Kimura, Kohji Matsuoka, Keigo Takauji, Miku Ohkimoto
  • Publication number: 20240021825
    Abstract: A liquid composition for electrodes is capable of forming an isolation layer having an excellent adhesion to the electrode composite material layer when used as an electrode for an electrochemical device. A corresponding electrochemical device has excellent electrochemical device characteristics. The liquid composition for an electrode contains inorganic particles, a resin, and a dispersant. The resin is soluble in a non-polar solvent or in a mixed solvent containing a non-polar solvent, and the resin has an ethylene oxide chain in a main chain.
    Type: Application
    Filed: November 24, 2021
    Publication date: January 18, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Kohji Matsuoka, Hiromitsu Kawase, Yuu Zama, Ryuji Higashi, Okitoshi Kimura, Tomoya Ohmura, Takuya Saiga, Naoki Shiraishi, Toshiya Sagisaka, Daisuke Nose
  • Patent number: 11807783
    Abstract: A liquid composition for manufacturing electrodes contains a radical polymerizable composition containing an ethylenically unsaturated compound having an oxyethylene group and a polymerization inhibitor, wherein infrared absorption spectra before curing the radical polymerizable composition include a first absorption band in a range of 1640 to 1620 cm?1, a second absorption band in a range of 1430 to 1400 cm?1, and a third absorption band in a range of 820 to 800 cm?1, and the second absorption band has a greater absorption intensity than the third absorption band, and the third absorption band has a greater absorption intensity than the first absorption band, and wherein the infrared absorption spectra after curing the radical polymerizable composition are substantially free of the first absorption band, the second absorption band, and third absorption band.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: November 7, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiromitsu Kawase, Yuu Zama, Okitoshi Kimura, Kohji Matsuoka, Ryuji Higashi, Yusuke Kanno, Hideo Yanagita, Masahiro Masuzawa
  • Publication number: 20230290951
    Abstract: An electrode is provided that includes a current collector, an electrode mixture layer on the current collector, and an insulating layer on the electrode mixture layer. The electrode mixture layer includes an active material. The insulating layer includes an insulating material and a resin having a repeating structural unit represented by a specific general formula.
    Type: Application
    Filed: February 28, 2023
    Publication date: September 14, 2023
    Inventors: Daisuke NOSE, Minehide KUSAYANAGI, Ryuji HIGASHI, Kohji MATSUOKA, Yuu ZAMA, Takuya SAIGA, Tomoya OHMURA
  • Publication number: 20230091130
    Abstract: A disclosed film electrode includes an electrode base, and an active material layer formed on the electrode base, and a resin layer adhering to at least one of a peripheral portion of the active material layer and a surface of the active material layer in a direction extending along a plane of the electrode base.
    Type: Application
    Filed: November 30, 2022
    Publication date: March 23, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Masahiro MASUZAWA, Toru Ushirogochi, Hideo Yanagita, Yuu Zama, Aya Yoshida, Shigeo Takeuchi, Anna Hirowatari, Okitoshi Kimura, Kohji Matsuoka, Keigo Takauji, Miku Ohkimoto
  • Patent number: 11588147
    Abstract: A disclosed film electrode includes an electrode base, and an active material layer formed on the electrode base, and a resin layer adhering to at least one of a peripheral portion of the active material layer and a surface of the active material layer in a direction extending along a plane of the electrode base.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: February 21, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masahiro Masuzawa, Toru Ushirogochi, Hideo Yanagita, Yuu Zama, Aya Yoshida, Shigeo Takeuchi, Anna Hirowatari, Okitoshi Kimura, Kohji Matsuoka, Keigo Takauji, Miku Ohkimoto
  • Patent number: 11545308
    Abstract: A liquid composition includes particles and a solvent, wherein a contact angle of the liquid composition with respect to a substrate is greater than a contact angle of the solvent with respect to the substrate, and the contact angle of the substrate with respect to water observed 9 seconds after the substrate comes into contact with the water is 45 degrees to 75 degrees.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: January 3, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kohji Matsuoka, Ryuji Higashi, Masahiro Masuzawa, Hideo Yanagita, Yuu Zama, Tomoya Ohmura, Yusuke Kanno, Daisuke Nose
  • Publication number: 20220407074
    Abstract: An electrode is capable of achieving both the safety of a corresponding electrochemical device and at least one of the output or the capacity retention rate. The electrode contains an electrode composite material layer, an insulating layer, and an electrode substrate. The electrode composite material layer and the insulating layer are sequentially formed on the electrode substrate, and the electrode composite material layer is coated by the insulating layer. An average value of the coverage percentage of the electrode composite material layer by the insulating layer in the electrode is 90% or more.
    Type: Application
    Filed: November 18, 2020
    Publication date: December 22, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Masahiro MASUZAWA, Kohji Matsuoka, Yuu Zama, Tomoya Ohmura, Ryuji Higashi, Hideo Yanagita
  • Patent number: 11387444
    Abstract: An electrode is provided which includes an electrode substrate, an electrode mixture layer overlying the electrode substrate, and an insulating layer overlying the electrode mixture layer. The electrode mixture layer contains an active material and a void. The insulating layer contains a resin and an insulating inorganic particulate accounting for 80% by mass of the insulating layer. In a boundary region of the electrode mixture layer with the insulating layer, the resin and the insulating inorganic particulate are present in a part of the void.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: July 12, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Aya Utsuki, Masahiro Masuzawa, Kohji Matsuoka, Yuu Zama, Anna Hirowatari, Hideo Yanagita
  • Publication number: 20220013865
    Abstract: A disclosed liquid composition includes particles; a resin; a solvent A; and a solvent B differing from the solvent A, wherein a surface tension with respect to air at 25° C. is 25 mN/m or more and less than 50 mN/m, a 90% diameter is 2.5 ?m or less, and a median diameter is 1 ?m or less.
    Type: Application
    Filed: January 22, 2020
    Publication date: January 13, 2022
    Inventors: Kohji MATSUOKA, Ryuji HIGASHI, Masahiro MASUZAWA, Hideo YANAGITA
  • Publication number: 20210320342
    Abstract: An inorganic particle layer for use in an electrode of a non-aqueous electrolyte power storage element is provided. The inorganic particle layer includes an inorganic particle and a polymer. The inorganic particle is insulating and has a surface potential. The polymer has an ionic functional group (A) and an ion-conducting functional group (B) each charged opposite to the surface potential of the inorganic particle. The inorganic particle and the polymer are bonded to each other.
    Type: Application
    Filed: October 31, 2019
    Publication date: October 14, 2021
    Inventors: Yuu ZAMA, Masahiro MASUZAWA, Kohji MATSUOKA, Hideo YANAGITA, Ryuji HIGASHI, Anna HIROWATARI
  • Publication number: 20210261796
    Abstract: A liquid composition for manufacturing electrodes contains a radical polymerizable composition containing an ethylenically unsaturated compound having an oxyethylene group and a polymerization inhibitor, wherein infrared absorption spectra before curing the radical polymerizable composition include a first absorption band in a range of 1640 to 1620 cm?1, a second absorption band in a range of 1430 to 1400 cm?1, and a third absorption band in a range of 820 to 800 cm?1, and the second absorption band has a greater absorption intensity than the third absorption band, and the third absorption band has a greater absorption intensity than the first absorption band, and wherein the infrared absorption spectra after curing the radical polymerizable composition are substantially free of the first absorption band, the second absorption band, and third absorption band.
    Type: Application
    Filed: February 16, 2021
    Publication date: August 26, 2021
    Inventors: Hiromitsu KAWASE, Yuu ZAMA, Okitoshi KIMURA, Kohji MATSUOKA, Ryuji HIGASHI, Yusuke KANNO, Hideo YANAGITA, Masahiro MASUZAWA
  • Publication number: 20210159023
    Abstract: A liquid composition includes particles and a solvent, wherein a contact angle of the liquid composition with respect to a substrate is greater than a contact angle of the solvent with respect to the substrate, and the contact angle of the substrate with respect to water observed 9 seconds after the substrate comes into contact with the water is 45 degrees to 75 degrees.
    Type: Application
    Filed: November 18, 2020
    Publication date: May 27, 2021
    Inventors: Kohji MATSUOKA, Ryuji HIGASHI, Masahiro MASUZAWA, Hideo YANAGITA, Yuu ZAMA, Tomoya OHMURA, Yusuke KANNO, Daisuke NOSE
  • Publication number: 20210159494
    Abstract: The present invention relates to a liquid composition including particles and a solvent, wherein a diffusion coefficient of the liquid composition decreases in one step-shaped curve through a single inflection point as content of the particles increases, and wherein the content of the particles is greater than or equal to the content of the particles at the inflection point.
    Type: Application
    Filed: November 20, 2020
    Publication date: May 27, 2021
    Inventors: Ryuji HIGASHI, Kohji MATSUOKA, Masahiro MASUZAWA, Yuko HAYAMA, Hideo YANAGITA
  • Publication number: 20200119333
    Abstract: A disclosed film electrode includes an electrode base, and an active material layer formed on the electrode base, and a resin layer adhering to at least one of a peripheral portion of the active material layer and a surface of the active material layer in a direction extending along a plane of the electrode base.
    Type: Application
    Filed: March 5, 2018
    Publication date: April 16, 2020
    Inventors: Masahiro MASUZAWA, Toru USHIROGOCHI, Hideo YANAGITA, Yuu ZAMA, Aya YOSHIDA, Shigeo TAKEUCHI, Anna HIROWATARI, Okitoshi KIMURA, Kohji MATSUOKA, Keigo TAKAUJI, Miku OHKIMOTO
  • Publication number: 20190288276
    Abstract: An electrode is provided which includes an electrode substrate, an electrode mixture layer overlying the electrode substrate, and an insulating layer overlying the electrode mixture layer. The electrode mixture layer contains an active material and a void. The insulating layer contains a resin and an insulating inorganic particulate accounting for 80% by mass of the insulating layer. In a boundary region of the electrode mixture layer with the insulating layer, the resin and the insulating inorganic particulate are present in a part of the void.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 19, 2019
    Inventors: Aya UTSUKI, Masahiro MASUZAWA, Kohji MATSUOKA, Yuu ZAMA, Anna HIROWATARI, Hideo YANAGITA
  • Patent number: 8900784
    Abstract: To provide a toner which contains a binder resin, a colorant, and capsules, wherein the binder resin contains a thermoplastic elastomer, and wherein the capsules each encapsulate a plasticizer capable of softening the thermoplastic elastomer and the capsules are fractured upon application of predetermined pressure.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: December 2, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuo Katano, Yukimichi Someya, Shinji Tezuka, Fuminari Kaneko, Kohji Takeuchi, Kohji Matsuoka, Takuma Nakamura, Tsuneo Kurotori, Hidekazu Yaginuma
  • Patent number: 8882187
    Abstract: Provided is a vehicle sun roof apparatus comprising: a movable panel configured to open and close an opening section, a guide rail provided at an edge portion of the opening section in the vehicle width direction, a sliding member linked to an edge portion of the movable panel in the vehicle width direction and provided along the guide rail so as to be movable in the fore-and-aft direction of the vehicle, a check mechanism configured to release a movement lock of the movable panel by locking the movement of the movable panel, and an engagement and disengagement switching mechanism provided with a first member supported by either the sliding member or the edge portion of the movable panel in the vehicle width direction.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: November 11, 2014
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Shintaro Katsura, Tetsuya Hirata, Shintaro Suzuki, Kiyozumi Fukami, Kohji Matsuoka
  • Patent number: 8711297
    Abstract: A display device includes a substrate; a matrix of scan lines and signal lines formed on the substrate; switching elements formed in pixel areas defined by the scan lines and the signal lines crossing each other; a first insulating film formed over the scan lines, the signal lines, and the switching elements; and display elements to be driven by the switching elements. The pixel areas are located in a display area and the first insulating film has openings above the scan lines or the signal lines in an outer area outside of the display area.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: April 29, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Kohji Matsuoka, Takumi Yamaga, Akishige Murakami, Naoyuki Ueda