Patents by Inventor Tomoaki Yoshioka

Tomoaki Yoshioka 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: 20220097426
    Abstract: A method for manufacturing an elastic body having a two-layer structure includes: forming a first elastic body on a provisional cylinder body having a substantially circular shape in cross section; and forming a second elastic body integrally with the first elastic body, which has been formed on the provisional cylinder body.
    Type: Application
    Filed: May 26, 2021
    Publication date: March 31, 2022
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Toshiaki BABA, Tomoaki YOSHIOKA, Yoko MIYAMOTO, Kazuki KISHI, Yosuke TSUTSUMI
  • Patent number: 11287764
    Abstract: An image forming apparatus includes: a rotating body; a sprocket provided coaxially with the rotating body, the sprocket being configured to rotate integrally with the rotating body; a chain including a holder configured to hold a leading end portion of a recording medium, the chain being wound on the sprocket, the chain being configured to rotate so as to transport the recording medium; an annular shaped transfer belt supported by an opposing member opposing the rotating body at an opposing position, the transfer belt being configured to sandwich the recording medium transported by the chain between the transfer belt and the rotating body at the opposing position, in which an image on an outer peripheral surface of the transfer belt is transferred to the recording medium in response to a transfer bias being applied between the rotating body and the opposing member; and a forming member that supports the transfer belt on an upstream side of the opposing position in a transport direction, the forming member be
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: March 29, 2022
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Tomoaki Yoshioka, Yoko Miyamoto, Toshiaki Baba, Tomohiro Wada, Kazuyoshi Hagiwara
  • Publication number: 20220091544
    Abstract: An image forming apparatus includes: a rotating body; a sprocket provided coaxially with the rotating body, the sprocket being configured to rotate integrally with the rotating body; a chain including a holder configured to hold a leading end portion of a recording medium, the chain being wound on the sprocket, the chain being configured to rotate so as to transport the recording medium; an annular shaped transfer belt supported by an opposing member opposing the rotating body at an opposing position, the transfer belt being configured to sandwich the recording medium transported by the chain between the transfer belt and the rotating body at the opposing position, in which an image on an outer peripheral surface of the transfer belt is transferred to the recording medium in response to a transfer bias being applied between the rotating body and the opposing member; and a forming member that supports the transfer belt on an upstream side of the opposing position in a transport direction, the forming member be
    Type: Application
    Filed: May 5, 2021
    Publication date: March 24, 2022
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Tomoaki YOSHIOKA, Yoko MIYAMOTO, Toshiaki BABA, Tomohiro WADA, Kazuyoshi HAGIWARA
  • Publication number: 20220082979
    Abstract: A cylinder member includes: a cylinder body having a cylindrical shape; a sheet member wound on the cylinder body; a first attachment portion provided at one end portion of the sheet member in a circumferential direction, the first attachment portion being detachably attached to the cylinder body; and a second attachment portion provided at the other end portion of the sheet member in the circumferential direction, the second attachment portion being detachably attached to the cylinder body.
    Type: Application
    Filed: May 13, 2021
    Publication date: March 17, 2022
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Tomoaki YOSHIOKA, Kazuki KISHI, Kazuyoshi HAGIWARA, Yoko MIYAMOTO, Toshiaki BABA
  • Publication number: 20220075293
    Abstract: A transfer member includes: an inner layer; an outer layer provided on an outer periphery of the inner layer; and a surface layer provided on an outer periphery of the outer layer, both end portions of the surface layer in circumferential directions extending in the circumferential directions from both end portions of the outer layer in the circumferential directions.
    Type: Application
    Filed: November 16, 2021
    Publication date: March 10, 2022
    Applicant: FUJIFILM BUSINESS INNOVATION CORP.
    Inventors: Koichiro YUASA, Kazuyoshi HAGIWARA, Kei TANAKA, Tomoaki YOSHIOKA, Toshiaki BABA, Yoko MIYAMOTO, Hirotaka TANAKA
  • Publication number: 20220075294
    Abstract: A transfer member includes: an inner layer; and an outer layer that is adhered to the inner layer and has a hardness lower than a hardness of the inner layer.
    Type: Application
    Filed: November 18, 2021
    Publication date: March 10, 2022
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Hirotaka TANAKA, Tomoaki YOSHIOKA, Yoko MIYAMOTO, Toshiaki BABA, Koichiro YUASA, Kazuyoshi HAGIWARA, Kei TANAKA
  • Patent number: 11256198
    Abstract: A transfer device includes: an annular transfer belt including an outer surface, a toner image being transferred to the outer surface of the annular transfer belt; a transfer unit including a transfer cylinder; and a facing roller member that is in contact with an inner surface of the transfer belt, in which the transfer cylinder includes a base material, and a surface layer wound around an outer circumference of the base material, the surface layer being replaceable with respect to the base material, the transfer cylinder has a transfer region where the toner image is transferred from the transfer belt to a recording medium in a state where the recording medium is sandwiched between the transfer cylinder and the outer surface of the transfer belt, the surface layer includes an elastic layer, the surface layer has a thickness of 6.0 mm or more and 10 mm or less and an Asker C hardness of 45° or more and 65° or less, and the facing roller member faces the transfer cylinder in the transfer region.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: February 22, 2022
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Tomoaki Yoshioka, Yoko Miyamoto, Toshiaki Baba
  • Publication number: 20220050407
    Abstract: A transfer device includes: an annular transfer belt including an outer surface, a toner image being transferred to the outer surface of the annular transfer belt; a transfer unit including a transfer cylinder; and a facing roller member that is in contact with an inner surface of the transfer belt, in which the transfer cylinder includes a base material, and a surface layer wound around an outer circumference of the base material, the surface layer being replaceable with respect to the base material, the transfer cylinder has a transfer region where the toner image is transferred from the transfer belt to a recording medium in a state where the recording medium is sandwiched between the transfer cylinder and the outer surface of the transfer belt, the surface layer includes an elastic layer, the surface layer has a thickness of 6.0 mm or more and 10 mm or less and an Asker C hardness of 45° or more and 65° or less, and the facing roller member faces the transfer cylinder in the transfer region.
    Type: Application
    Filed: June 3, 2021
    Publication date: February 17, 2022
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Tomoaki YOSHIOKA, Yoko MIYAMOTO, Toshiaki BABA
  • Patent number: 11201294
    Abstract: The invention provides a photoelectric conversion element exhibiting excellent photoelectric conversion efficiency even in a case where the photoelectric conversion film is a thin film. Also, the invention provides an optical sensor and an imaging element including the photoelectric conversion element. The invention provides a compound applied to the photoelectric conversion element. The photoelectric conversion element of the invention includes a conductive film, a photoelectric conversion film, and a transparent conductive film, in this order, in which the photoelectric conversion film contains a compound represented by Formula (1).
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: December 14, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Eiji Fukuzaki, Tomoaki Yoshioka
  • Publication number: 20210380881
    Abstract: An object of the present invention is to provide a luminescent particle having an emission maximum wavelength in a long wavelength range of 680 nm or longer and exhibiting a high quantum yield; and a compound having an emission maximum wavelength in a long wavelength range of 680 nm or longer and exhibiting a high quantum yield in the particles. According to the present invention, provided is a luminescent particle containing at least one kind of compound represented by Formula (1) (definitions of substituents in the formula are as set forth in the description) and a particle.
    Type: Application
    Filed: August 19, 2021
    Publication date: December 9, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Kousuke WATANABE, Naoyuki HANAKI, Kouitsu SASAKI, Tomoaki YOSHIOKA, Kazuhei KANEKO, Yoshinori KANAZAWA
  • Patent number: 11171165
    Abstract: The present invention provides a photoelectric conversion element including a photoelectric conversion film having a narrow half-width of absorption peak and an excellent photoelectric conversion efficiency, and an imaging element, an optical sensor, and a compound. The photoelectric conversion element according to the present invention includes a conductive film, a photoelectric conversion film, and a transparent conductive film, in this order, in which the photoelectric conversion film contains a compound represented by Formula (1).
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: November 9, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Eiji Fukuzaki, Tomoyuki Mashiko, Tomoaki Yoshioka, Koichi Iwasaki
  • Publication number: 20210318634
    Abstract: Provided is an image forming apparatus, including: an image holder configured to hold an image formed using an electrographic process; a transfer body that faces the image holder and is configured to contact the image holder while rotating to form a secondary transfer region; an application unit configured to apply a voltage for charging the secondary transfer region; and a charge unit that faces a region other than the secondary transfer region of the transfer body and is configured to charge a surface of the transfer body with a polarity opposite to an applied voltage of the application unit.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Koichiro YUASA, Toshiaki BABA, Yoko MIYAMOTO, Takeshi YASUDA, Hirotaka TANAKA, Masaaki TAKAHASHI, Tomoaki YOSHIOKA
  • Patent number: 11136500
    Abstract: An object of the present invention is to provide a luminescent particle having an emission maximum wavelength in a long wavelength range of 680 nm or longer and exhibiting a high quantum yield; and a compound having an emission maximum wavelength in a long wavelength range of 680 nm or longer and exhibiting a high quantum yield in the particles. According to the present invention, provided is a luminescent particle containing at least one kind of compound represented by Formula (1) (definitions of substituents in the formula are as set forth in the description) and a particle.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: October 5, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Kousuke Watanabe, Naoyuki Hanaki, Kouitsu Sasaki, Tomoaki Yoshioka, Kazuhei Kaneko, Yoshinori Kanazawa
  • Publication number: 20210294246
    Abstract: Provided is an image forming apparatus including: an annular transfer belt having an outer surface on which an image is transferred; a transferring unit including a transfer cylinder having a transfer area that sandwiches a recording medium with the outer surface of the transfer belt to transfer the image from the outer surface of the transfer belt to the recording medium, and a pair of first rotating bodies disposed on both axial end sides of the transfer cylinder; a pair of circulating members each being wound around the first rotating body and being circulated by rotation of the first rotating bodies; and a holding unit attached to the circulating members, the holding unit configured to hold the recording medium, transport the recording medium with circulation of the circulating members, and pass the recording medium through the transfer area.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 23, 2021
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Tomoaki YOSHIOKA, Mitsuaki KURODA, Kazuyoshi HAGIWARA, Shohei MIYAGAWA, Kei TANAKA, Masaaki TAKAHASHI, Yoko MIYAMOTO, Toshiaki BABA
  • Patent number: 11127869
    Abstract: The invention provides a photoelectric conversion element including a photoelectric conversion film excellent in vapor deposition suitability and exhibiting excellent photoelectric conversion efficiency in a case where the photoelectric conversion film is a thin film, an optical sensor, an imaging element, and a compound. The photoelectric conversion element of the embodiment of the invention includes a conductive film, a photoelectric conversion film, and a transparent conductive film, in this order, in which the photoelectric conversion film contains a compound represented by Formula (1).
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: September 21, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Tomoaki Yoshioka, Eiji Fukuzaki, Kimiatsu Nomura
  • Publication number: 20210286294
    Abstract: An image forming apparatus includes: an annular transfer belt having an outer surface on which an image is transferred; a nip portion that forms a nip region for nipping a recording medium with an outer surface of the transfer belt; a facing portion that faces the nip region from an inner side of the transfer belt and transfers the image from the transfer belt to the recording medium in the nip region by charging the transfer belt; and a transport unit including a holding portion that holds the recording medium, transports the recording medium by moving the holding portion, and causes the recording medium together with the holding portion to pass the nip region while holding the recording medium at the holding portion.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 16, 2021
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Tomoaki YOSHIOKA, Masaaki TAKAHASHI, Kazuyoshi HAGIWARA, Yoko MIYAMOTO, Toshiaki BABA
  • Patent number: 11024813
    Abstract: A photoelectric conversion element has a conductive film, a photoelectric conversion film, and a transparent conductive film in this order, in which the above-described photoelectric conversion film contains a compound represented by Formula (1). In Formula (1), R1 and R2 each independently represent an alkyl group, an aryl group, or a heteroaryl group. R1 and R2 may be linked to each other to form a ring. R3 represents an alkyl group, an aryl group, or a heteroaryl group. A represents a ring at least containing one carbon atom and one cationic nitrogen atom.
    Type: Grant
    Filed: May 5, 2019
    Date of Patent: June 1, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Tomoaki Yoshioka
  • Publication number: 20210135121
    Abstract: A first object of the present invention is to provide a photoelectric conversion element which includes a photoelectric conversion film having a narrow half-width of an absorption peak and has excellent heat resistance. Moreover, a second object of the present invention is to provide an imaging element and an optical sensor. Furthermore, a third object of the present invention is to provide a novel compound. A photoelectric conversion element according to the embodiment of the present invention includes a conductive film, a photoelectric conversion film, and a transparent conductive film in this order, in which the photoelectric conversion film contains a compound represented by Formula (1).
    Type: Application
    Filed: November 25, 2020
    Publication date: May 6, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Tomoyuki MASHIKO, Tomoaki YOSHIOKA, Eiji FUKUZAKI
  • Publication number: 20210135128
    Abstract: The present invention is to provide a photoelectric conversion element having excellent heat resistance. In addition, an imaging element and an optical sensor which include the photoelectric conversion element are provided. Furthermore, a compound applied to the photoelectric conversion element is provided. A photoelectric conversion element according to the present invention includes a conductive film, a photoelectric conversion film, and a transparent conductive film, in this order, in which the photoelectric conversion film contains a compound represented by Formula (1). In Formula (1), Y1 represents a group represented by Formula (1-1) or a group represented by Formula (1-2).
    Type: Application
    Filed: January 11, 2021
    Publication date: May 6, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Tomoaki YOSHIOKA, Tomoyuki MASHIKO, Koichi IWASAKI
  • Patent number: 10886479
    Abstract: The present invention provides a photoelectric conversion element exhibiting excellent responsiveness, and excellent photoelectric conversion efficiency in a case where the photoelectric conversion film is a thin film, an optical sensor, an imaging element which include the photoelectric conversion element, and a compound. The photoelectric conversion element of the present invention includes a conductive film, a photoelectric conversion film, and a transparent conductive film, in this order, in which the photoelectric conversion film contains a compound represented by Formula (1) and having a structure represented by Formula (2).
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: January 5, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Tomoaki Yoshioka, Kimiatsu Nomura, Eiji Fukuzaki