Patents by Inventor Shuichi Yokoyama

Shuichi 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: 11941965
    Abstract: An object of the present disclosure is to enable a warning to be issued to a person who is highly likely to be put in danger at a risky point. In an information processing apparatus, a controller acquires information indicating a risky point, acquires a state of a person with a predetermined positional relationship to the risky point, and determines whether or not the state of the person is a state where there is a high possibility of being put in danger, among a plurality of states of the person assumable at the risky point. Furthermore, in a case where the state of the person is determined to be the state where there is a high possibility of being put in danger, the controller causes an output unit to output information indicating a warning.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: March 26, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yurika Tanaka, Shuichi Sawada, Takaharu Ueno, Shin Sakurada, Daiki Yokoyama, Genshi Kuno
  • Patent number: 11944004
    Abstract: According to the present invention, there is provided an organic electroluminescence element including at least an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode in the stated order, the organic electroluminescence element being characterized in that: the hole injection layer contains an arylamine compound represented by the following general formula (1) and an electron acceptor. The organic EL element of the present invention has a high light emission efficiency and an excellent durability, as compared with the related art, while maintaining the existing low drive voltage.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: March 26, 2024
    Assignee: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Naoaki Kabasawa, Takeshi Yamamoto
  • Publication number: 20240094661
    Abstract: An image forming apparatus includes a rotatable image bearing member and a rotatable developing member to carry developer made up of toner particles and carrier particles adhered to surfaces of the toner particles. Where a pressing force pressing the developing member against the image bearing member is F1, a total number of the carrier particles interposed between the toner particles and the image bearing member is N1, and an adhesion Ft between a carrier particle and a toner particle, measured when the carrier particle is pressed against the toner particle with F1/N1 that is a pressing force per unit carrier particle, and an adhesion Fdr1 between the carrier particle and the image bearing member, measured when the carrier particle is pressed against the image bearing member with F1/N1, satisfy Ft?Fdr1.
    Type: Application
    Filed: November 9, 2023
    Publication date: March 21, 2024
    Inventors: Shuichi Tetsuno, Shinji Katagiri, Koji An, Hiroko Yokoyama, Wataru Takahashi, Shohei Ishio, Takayuki Tanaka, Tomonori Matsunaga
  • Patent number: 10335439
    Abstract: [Problem] To provide a method for producing human corneal epithelial sheet, wherein the human corneal epithelial-derived cells obtained by culturing human corneal epithelial cells are cultured on an amnion substrate. [Solution] A method for culturing human corneal epithelial cells using mesenchymal stem cells as the feeder cells; and a method for culturing human corneal epithelial cells using a medium containing a ROCK inhibitor, a phosphodiesterase inhibitor, a MAP kinase inhibitor and a TGF-? receptor inhibitor in various combinations.
    Type: Grant
    Filed: March 9, 2014
    Date of Patent: July 2, 2019
    Assignees: JCR Pharmaceuticals Co., Ltd., Kyoto Prefectural Public University Corporation
    Inventors: Kiwamu Imagawa, Kenichi Maeda, Yuki Hosoda, Shuichi Yokoyama, Naoki Okumura, Noriko Koizumi, Shigeru Kinoshita
  • Publication number: 20160008408
    Abstract: [Problem] To provide a method for producing human corneal epithelial sheet, wherein the human corneal epithelial-derived cells obtained by culturing human corneal epithelial cells are cultured on an amnion substrate. [Solution] A method for culturing human corneal epithelial cells using mesenchymal stem cells as the feeder cells; and a method for culturing human corneal epithelial cells using a medium containing a ROCK inhibitor, a phosphodiesterase inhibitor, a MAP kinase inhibitor and a TGF-? receptor inhibitor in various combinations.
    Type: Application
    Filed: March 9, 2014
    Publication date: January 14, 2016
    Applicants: JCR PHARMACEUTICALS CO., LTD., KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION
    Inventors: Kiwamu IMAGAWA, Kenichi MAEDA, Yuki HOSODA, Shuichi YOKOYAMA, Naoki OKUMURA, Noriko KOIZUMI, Shigeru KINOSHITA
  • Patent number: 6562535
    Abstract: A toner for development of electrostatic images, comprising at least a binder resin, a colorant and a charge control agent, wherein the charge control agent contains a positive charge control resin (A) composed of a polymer having a weight average molecular weight of 1,000 to 100,000 and a functional group which brings positively charging ability, and a negative charge control resin (B) composed of a polymer having a weight average molecular weight of 1,000 to 100,000 and a functional group which brings negatively charging ability. The toner is excellent in flowability, shelf stability and charge properties, and provides images excellent in image quality.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: May 13, 2003
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Kojiro Masuo, Shuichi Yokoyama, Takuji Kishimoto, Kazu Niwa