Patents by Inventor Akira Ando

Akira Ando 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: 20260147285
    Abstract: The present disclosure relates to an electrophotographic photoreceptor having at least a photosensitive layer and a protective layer sequentially on an electroconductive support, wherein the protective layer contains a compound represented by Formula (1) satisfying Formula (I) and Formula (II-1): METM?700 (I) 0.32?MX/METM?0.60 (II-1), wherein METM represents a molecular weight of the compound represented by Formula (1), and MX represents a molecular weight of a compound in which all bonding sites of X in Formula (1) are replaced with hydrogen atoms.
    Type: Application
    Filed: September 30, 2025
    Publication date: May 28, 2026
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tsukasa HASEGAWA, Manuel Emilio OTERO RAMIREZ, Hideki GOROUMARU, Akira ANDO
  • Publication number: 20260049081
    Abstract: The present disclosure relates to a compound having one or more polymerizable functional groups.
    Type: Application
    Filed: June 25, 2025
    Publication date: February 19, 2026
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tsukasa HASEGAWA, Manuel Emilio OTERO RAMIREZ, Akira ANDO, Hideki GOROUMARU
  • Patent number: 12535106
    Abstract: A sliding member includes a bearing alloy layer and an overlay. The overlay includes a diffusion prevention layer on the bearing alloy layer, and a corrosion prevention layer on the diffusion prevention layer. A surface of the corrosion prevention layer is a sliding surface. The corrosion prevention layer constitutes 50% to 90% of an entire volume of the overlay. The corrosion prevention layer and the diffusion prevention layer each include a corrosion inhibitor and the balance of Bi and inevitable impurities. The corrosion inhibitor is defined as one or more elements that have a higher oxygen affinity than Bi and that form an alloy, a solid solution or an intermetallic compound with Bi. An average concentration of the corrosion inhibitor included in the diffusion prevention layer is lower than an average concentration of the corrosion inhibitor included in the corrosion prevention layer.
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: January 27, 2026
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Tomoyasu Shiroya, Akira Ando
  • Publication number: 20250320211
    Abstract: The present disclosure relates to a compound having two or more polymerizable functional groups in one molecule and represented by the following formula (1).
    Type: Application
    Filed: June 26, 2025
    Publication date: October 16, 2025
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tsukasa HASEGAWA, Manuel Emilio OTERO RAMIREZ, Akira ANDO, Hideki GOROUMARU
  • Patent number: 12372889
    Abstract: The present disclosure relates to an electrophotographic photoreceptor including at least a photosensitive layer and a protective layer in sequence on a conductive support, and the protective layer contains a cured product of a curable compound, conductive particles having a band gap of 2.0 eV or more and 3.6 eV or less, and particles having a band gap of 8.0 eV or more.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: July 29, 2025
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takahiro Choda, Daisuke Yamazaki, Akira Ando
  • Publication number: 20250176435
    Abstract: A film structure (10) includes a Si layer (12a), a ZrO2 layer (12b), which is a buffer film containing ZrO2, formed on the Si layer (12a), and a piezoelectric film (11) formed on the ZrO2 layer (12b). The Si layer 12a is an SOI layer on a Si(100) substrate or an SOI substrate including a base made of a Si substrate, an insulating layer on the base, and an SOI layer made of a Si(100) film on the insulating layer. The piezoelectric film (11) includes c-axis oriented LiNbO3 or LiTaO3.
    Type: Application
    Filed: April 7, 2023
    Publication date: May 29, 2025
    Applicant: I-PEX Piezo Solutions Inc.
    Inventors: Takeshi IIZUKA, Akira ANDO, Akio KONISHI
  • Patent number: 12253823
    Abstract: The present invention relates to an electrophotographic photoreceptor having a plurality of layers containing at least one outermost layer, wherein at least one of the outermost layer contains a polymer having a first structure where at least one carbonyl group is bonded to an aromatic group and a second structure represented by Formula (A).
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: March 18, 2025
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Akira Ando, Atsushi Yoshizawa
  • Publication number: 20250036036
    Abstract: The present invention provides an electrophotographic photoconductor having a photosensitive layer and a protective layer in sequence on a conductive support, the protective layer containing an electron transporting compound having a left-right asymmetric structure in which an electron transporting skeleton is centered, with a side chain having a polymerizable functional group on one side, and with a side chain having no polymerizable functional group on the other side, the electrophotographic photoconductor having good electrical properties, especially residual potential properties, even when a compound having electron transportability is contained in the protective layer.
    Type: Application
    Filed: September 30, 2024
    Publication date: January 30, 2025
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tsukasa HASEGAWA, Manuel Emilio OTERO RAMIREZ, Akira ANDO, Hideki GOROUMARU
  • Publication number: 20250036035
    Abstract: The present invention provides a novel electrophotographic photoconductor having at least a photosensitive layer and a protective layer on a conductive support, the protective layer containing an electron donating compound and preferably further containing an electron transporting compound, the electrophotographic photoconductor having good electrical properties, especially residual potential properties, even when a compound having an electron transporting structure is contained in the protective layer.
    Type: Application
    Filed: September 30, 2024
    Publication date: January 30, 2025
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tsukasa HASEGAWA, Manuel Emilio OTERO RAMIREZ, Akira ANDO
  • Publication number: 20240352970
    Abstract: A sliding member includes: a semi-annular metal member having a back metal layer arranged on an outer circumferential surface side and a lining layer made of an Al alloy and arranged on an inner circumferential surface side; an adhesive layer stacked on an inner circumferential surface of the metal member and containing Zn as a main component; an intermediate layer stacked on the adhesive layer and containing Ag, Ni, or Co as a main component; and a cover layer stacked on the intermediate layer and containing Bi, Pb, or Sn as a main component. The adhesive layer extends continuously so as to further cover an axial end face of the metal member, and the ratio of a surface area of the adhesive layer covering the axial end face to a surface area of the axial end face is 30% or more.
    Type: Application
    Filed: April 18, 2024
    Publication date: October 24, 2024
    Inventors: Akira ANDO, Tomoyasu SHIROYA
  • Publication number: 20240353769
    Abstract: A compound represented by the formula (1) below is proposed as a novel compound having electron-transporting property which dissolves sufficiently in an organic solvent.
    Type: Application
    Filed: June 25, 2024
    Publication date: October 24, 2024
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tsukasa HASEGAWA, Manuel Emilio OTERO RAMIREZ, Akira ANDO, Hideki GOROUMARU
  • Publication number: 20240345498
    Abstract: A novel compound having electron-transporting property which dissolves sufficiently in an organic solvent is provided.
    Type: Application
    Filed: June 25, 2024
    Publication date: October 17, 2024
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tsukasa HASEGAWA, Manuel Emilio OTERO RAMIREZ, Akira ANDO, Hideki GOROUMARU
  • Publication number: 20240329550
    Abstract: The disclosure provides an electrophotographic photoconductor comprises a photosensitive layer and a protective layer in sequence on a conductive support, wherein the protective layer contains a polymer having a structure represented by the following formula (1) or (2):
    Type: Application
    Filed: May 23, 2024
    Publication date: October 3, 2024
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Akira ANDO
  • Publication number: 20240134296
    Abstract: The present disclosure relates to an electrophotographic photoreceptor including at least a photosensitive layer and a protective layer in sequence on a conductive support, and the protective layer contains a cured product of a curable compound, conductive particles having a band gap of 2.0 eV or more and 3.6 eV or less, and particles having a band gap of 8.0 eV or more.
    Type: Application
    Filed: December 8, 2023
    Publication date: April 25, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Takahiro Choda, Daisuke Yamazaki, Akira Ando
  • Patent number: 11959815
    Abstract: Disclosed herein is a stress sensor that includes a stress detection layer including a laminated body including a first ferromagnetic layer, a first non-magnetic layer, a second ferromagnetic layer, and an antiferromagnetic layer stacked one on another. The antiferromagnetic layer includes Mn, and the magnetization direction of the second ferromagnetic layer is fixed by the exchange bias caused by the exchange coupling with the antiferromagnetic layer. The stress sensor detects a stress by an electric resistance depending upon a relative angle between magnetization directions of the first ferromagnetic layer and the second ferromagnetic layer, the relative angle changing depending upon an externally applied stress.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: April 16, 2024
    Assignees: MURATA MANUFACTURING CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Akira Ando, Daichi Chiba
  • Publication number: 20240048121
    Abstract: A membrane structure (10) includes: a substrate being a Si substrate or an SOI substrate; a buffer film containing ZrO2 and formed on the substrate; and a piezoelectric film (11) formed on the buffer film, a polarization direction in the piezoelectric film (11) being preferentially oriented parallel to the substrate.
    Type: Application
    Filed: March 26, 2021
    Publication date: February 8, 2024
    Applicant: I-PEX Piezo Solutions Inc.
    Inventors: Akio KONISHI, Hiroaki KANAMORI, Akira ANDO, Yuuji HONDA
  • Publication number: 20240027928
    Abstract: An electrophotographic photoreceptor includes: a conductive support; a photosensitive layer on the conductive support; and a protective layer, for example, an outermost layer on a side opposite to the conductive support, wherein the protective layer contains a polymer having a structure represented by the following formula (a): A1-L1-X-L2-A2??(a).
    Type: Application
    Filed: September 27, 2023
    Publication date: January 25, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Akira Ando, Chiyoko Sato
  • Publication number: 20230296995
    Abstract: There is provided an electrophotographic photoreceptor including: a conductive support; and a photosensitive layer and a protective layer containing a cured product obtained by curing a curable compound, which are sequentially disposed on the conductive support. The photoreceptor has a Martens hardness of 255 N/mm2 or more. The photosensitive layer contains at least a hole transport material (HTM), and an energy difference between a HOMO level and a LUMO level of the hole transport material (HTM) is greater than 3.6 eV and 4.0 eV or less.
    Type: Application
    Filed: April 18, 2023
    Publication date: September 21, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Takahiro Choda, Akira Ando
  • Publication number: 20230273535
    Abstract: As an electrophotographic photoreceptor including a protective layer (an outermost layer), a photosensitive layer and a conductive support, wherein the protective layer (the outermost layer) comprises a polymer obtained by polymerizing a compound having a chain polymerizable functional group, and the photosensitive layer comprises a hole transport material satisfying the following formula (1) and an electron transport material satisfying the following formula (2): 600?a??(1) 400?b??(2) in the formula (1), a represents a molecular weight of the hole transport material, and in the formula (2), b represents a molecular weight of the electron transport material.
    Type: Application
    Filed: April 18, 2023
    Publication date: August 31, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Akira Ando, Takahiro Choda
  • Publication number: 20230259046
    Abstract: There is provided an electrophotographic photoreceptor including: a conductive support; and a photosensitive layer and a protective layer containing a cured product obtained by curing a curable compound, which are sequentially disposed on the conductive support. An area ratio A/B is 0.0045 or less, where A is an absorbance area at a wavelength of 1647 cm?1 to 1627 cm?1 and B is an absorbance area of a peak at a wavelength of 1800 cm?1 to 1647 cm?1 in an infrared absorption spectrum measurement of the protective layer. The photosensitive layer contains at least a hole transport material (HTM) and a radical acceptor compound. The electrophotographic photoreceptor is an electrophotographic photoreceptor including a protective layer with a high curing degree and having good initial electrical characteristics, excellent strong exposure characteristics, and excellent transfer repeatability.
    Type: Application
    Filed: April 19, 2023
    Publication date: August 17, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Takahiro Choda, Yuka Nagao, Akira Ando