Patents by Inventor Tomoya Fujii

Tomoya Fujii 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: 20240085818
    Abstract: An image forming apparatus includes an electrophotographic photoreceptor that has a photosensitive layer constituting a surface of the electrophotographic photoreceptor, a charging device that charges the surface of the electrophotographic photoreceptor, an electrostatic charge image forming device that forms an electrostatic charge image on the charged surface of the electrophotographic photoreceptor, a developing device that accommodates a developer containing a toner which contains toner particles and an external additive, and develops the electrostatic charge image formed on the surface of the electrophotographic photoreceptor by the developer as a toner image, a transfer device that transfers the toner image formed on the surface of the electrophotographic photoreceptor to a surface of a recording medium, and a cleaning device that includes a cleaning blade coming into contact with the surface of the electrophotographic photoreceptor and cleaning at least residual toner particles on the surface of the el
    Type: Application
    Filed: January 16, 2023
    Publication date: March 14, 2024
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Yoshiteru YAMADA, Tomoya SASAKI, Ryosuke FUJII, Hiroko KOBAYASHI, Yuto OKAZAKI
  • Publication number: 20240077809
    Abstract: An electrophotographic photoreceptor includes a conductive substrate, and a lamination type photosensitive layer disposed on the conductive substrate and including a charge generation layer and a charge transport layer, in which the charge transport layer contains a charge transport material, at least one of a polyester resin (PEz) or a polycarbonate resin (PCz) that has at least one of a structure (Z1) represented by Formula (Z1) or a structure (Z2) represented by Formula (Z2) at at least one terminal, and a resin (X) that has at least one of a unit (X1) represented by Formula (X1) or a unit (X2) represented by Formula (X2), a mass proportion of the resin (X) in a total amount of the polyester resin (PEz), the polycarbonate resin (PCz), and the resin (X) in the charge transport layer is 0.
    Type: Application
    Filed: April 13, 2023
    Publication date: March 7, 2024
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Tomoya SASAKI, Ryosuke FUJII, Hiroko KOBAYASHI, Yuto OKAZAKI, Kosuke NARITA
  • Publication number: 20240075745
    Abstract: A printing apparatus includes a removable member including a printing unit, a battery that drives the printing unit, a control board that controls the printing unit, and a body unit that holds the removable member, the battery, and the control board. The removable member and the battery are disposed on a straight line extending in a sub-scanning direction perpendicular to a main scanning direction of the body unit. The control board is disposed in the body unit with a side, as a facing side, of the control board being along a height direction of the printing apparatus and facing the removable member and the battery in the main scanning direction.
    Type: Application
    Filed: January 31, 2022
    Publication date: March 7, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Masatoshi ISHIDA, Tomoya FUJII, Munekazu HIRATA, Kanako ISHIGURE
  • Publication number: 20240004275
    Abstract: A light source device includes: a light source to emit an excitation light beam having a first wavelength; a heat generation member to convert the first wavelength of the excitation light beam emitted from the light source into a light beam having a second wavelength different from the first wavelength; a substrate to which the heat generation member is attached; a motor to rotate the substrate; a bracket to hold the motor; a casing having an opening penetrating through the casing; and a cooling member connected to the bracket. The casing accommodates the light source, the heat generation member, the substrate, and the bracket. The cooling member cools the heat generation member via the bracket; and seals the opening.
    Type: Application
    Filed: June 8, 2023
    Publication date: January 4, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Jun MASHIMO, Tomoya FUJII, Mayu BANNO
  • Publication number: 20240004279
    Abstract: A light source module includes: a light source to emit a light beam having a first wavelength band in a first direction; a first condenser lens to condense the light beam emitted from the light source in the first direction; a condenser optical system to condense the light beam from the first condenser lens in a second direction orthogonal to the first direction to form an irradiation spot; a wavelength converter to convert the first wavelength band of the light beam condensed by the condenser optical system into a light beam having a second wavelength band; a second condenser lens to condense the light beam having the second wavelength band at a predetermined position, a first adjuster to adjust a position of the first condenser lens; and a second adjuster to adjust a position of the second condenser lens.
    Type: Application
    Filed: June 9, 2023
    Publication date: January 4, 2024
    Inventors: Tomoya FUJII, Yuuto AKIBA, Kazuhiro FUJITA, Takashi SASAKI
  • Publication number: 20230266652
    Abstract: A light source device includes: a light emitter including a light emitting surface to emit first light having a first wavelength in a light emitting direction; an optical system to condense the first light having the first wavelength at a light condensed position; and a wavelength converter including a wavelength conversion region to convert the first light having the first wavelength to second light having a second wavelength. A center axis of the wavelength converter is parallel to the light emitting surface, the light emitter is at a position adjacent to one end of the wavelength converter in the light emitting direction in a plane orthogonal to the center axis of the wavelength converter, and the light condensed position of the optical system is closer to the light emitter than another end of the wavelength converter opposite to the one end in the light emitting direction in the plane.
    Type: Application
    Filed: February 14, 2023
    Publication date: August 24, 2023
    Inventors: Tomoya FUJII, Jun MASHIMO, Yuuto AKIBA
  • Publication number: 20220249339
    Abstract: Disclosed are: a method for suppressing adhesion of air harmful substances, including applying a metal oxide (A) having an average primary particle diameter dA of 800 nm or less to skin in an amount of 0.03 mg/cm2 or more to suppress adhesion of air pollutants to the skin, and a method for suppressing adhesion of air pollutants, including applying an external preparation to skin to suppress adhesion of air pollutants to the skin, wherein the external preparation contains the component (AI), and the component (BI), the component (BII) or the component (BIII), and the ratio by mass of the content of the component (BI), the component (BII) or the component (BIII) to the content of the component (AI) in the external preparation each falls within a specific range. Component (AI): a hydrophobized metal oxide having an average primary particle diameter dAI of 800 nm or less. Component (BI): an ester oil. Component (BII): a nonvolatile hydrocarbon oil. Component (BIII): a nonvolatile silicone oil.
    Type: Application
    Filed: June 4, 2020
    Publication date: August 11, 2022
    Applicant: KAO CORPORATION
    Inventors: Jia SHI, Tomoya FUJII, Hiroyuki TAKIZAWA
  • Publication number: 20220233419
    Abstract: Disclosed is a method for suppressing adhesion of air harmful substances, including applying an external preparation to skin to suppress adhesion of air pollutants to the skin, wherein the external preparation contains the following component (A) and component (B), and the ratio by mass of the content of the component (A) to the content of the component (B) in the external preparation [(A)/(B)] is 0.30 or more and 5.0 or less. Component (A): a metal oxide having an average primary particle diameter dA of 800 nm or less. Component (B): non-disintegrable particles having an average particle diameter DB of 1 ?m or more and 10 ?m or less.
    Type: Application
    Filed: June 4, 2020
    Publication date: July 28, 2022
    Applicant: KAO CORPORATION
    Inventors: Tomoya FUJII, Hiroyuki TAKIZAWA
  • Publication number: 20220202662
    Abstract: Disclosed are: a particle-containing composition that contains inorganic particles (A) and particles (B) other than the particles (A), wherein the inorganic particles (A) are at least one selected from the group consisting of easily disintegrable inorganic particles (A1) having an average particle diameter DA1 of 1 ?m or more and 50 ?m or less, and having a surface roughness Ra of 10 nm or more and 50 nm or less, and inorganic particles (A2) having an average particle diameter DA2 of less than 1 ?m, and having an average primary particle diameter dA2 of 3 nm or more and 50 nm or less, and the particles (B) are particles having an average particle diameter DB of 1 ?m or more and 50 ?m or less, and coated on the surfaces thereof with a polymer (C) having a hydrogen bond-accepting bond or a hydrogen bond-accepting functional group; and a method for producing the particle-containing composition, and a method for suppressing adhesion of air harmful substances using the particle-containing composition.
    Type: Application
    Filed: June 4, 2020
    Publication date: June 30, 2022
    Applicant: KAO CORPORATION
    Inventors: Hiroyuki TAKIZAWA, Moeko ASANO, Tomoya FUJII
  • Patent number: 11235591
    Abstract: An image forming apparatus includes a recording device and an apparatus body to internally house the recording device. The apparatus body includes an attachment unit to be removably mounted in the apparatus body and an apparatus body-side connector. The attachment unit includes an attachment-side connector to be electrically connected to the apparatus body-side connector. The apparatus body also includes a pressing portion to press the attachment unit in a direction in which the attachment-side connector faces the apparatus body-side connector in a state where the attachment unit is attached to the apparatus body. The direction is orthogonal to a mounting direction of the attachment unit. The apparatus body further includes a movable member holding the pressing portion movable between a first position where the pressing portion is closest to the apparatus body-side connector and a second position where the pressing portion is farthest from the apparatus body-side connector.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: February 1, 2022
    Assignee: Ricoh Company Ltd.
    Inventors: Masatoshi Ishida, Kunihiko Nishioka, Yohei Osanai, Satoshi Narai, Tomoya Fujii, Takayuki Andoh, Masashi Ota, Munekazu Hirata
  • Patent number: 11124003
    Abstract: An article includes a body member and a detachable member detachably attached to the body member. One of the body member and the detachable member includes a cover portion having an engaging portion on an inner wall face of the cover portion. The other includes a covered portion that is covered with the cover portion and has an engaged portion on an outer wall face of the covered portion. The engaging portion and the engaged portion are configured to be disengaged by warping the cover portion so that the cover portion displaces to an outer wall face side of the cover portion. The one of the body member and the detachable member includes a finger-applying-position indicator at a position deviated from a portion corresponding to the cover portion, on an outer wall face of the one. The finger-applying-position indicator indicates a position to be applied with fingers of a user.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: September 21, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masashi Ota, Munekazu Hirata, Kunihiko Nishioka, Tomoya Fujii, Yohei Osanai, Satoshi Narai, Masatoshi Ishida, Takayuki Andoh
  • Publication number: 20210276341
    Abstract: A portable image forming apparatus includes a recording section, at least one of a position detection device and a recording material detection device, and an accommodation unit. The recording section is configured to record an image on a recording material. The position detection device is configured to detect a position of the portable image forming apparatus. The recording material detection device is configured to detect presence or absence of the recording material. The accommodation unit includes an image formation material accommodation portion. A projection region of the at least one of the position detection device and the recording material detection device with respect to a virtual plane parallel to a recording surface to face the recording material at least partially overlaps with a projection region of the accommodation unit with respect to the virtual plane.
    Type: Application
    Filed: September 9, 2019
    Publication date: September 9, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Yohei OSANAI, Masatoshi ISHIDA, Tomoya FUJII, Kunihiko NISHIOKA, Munekazu HIRATA, Masashi OTA
  • Publication number: 20210245514
    Abstract: An image forming apparatus, movable to form an image on a recording medium, includes an image forming device, an apparatus body, and a cap. The image forming device includes an image forming face that is configured to face the recording medium. The image forming device is configured to form the image on the recording medium. The apparatus body is configured to support the image forming device. The cap is movable relative to the apparatus body between a capping position to cover the image forming face and a retracted position to be retracted from the image forming face. The retracted position is outside an area in which the image forming face is extended in a scanning direction, as viewed in a normal direction of the image forming face.
    Type: Application
    Filed: January 28, 2021
    Publication date: August 12, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Masatoshi ISHIDA, Tomoya FUJII, Munekazu HIRATA
  • Publication number: 20210245511
    Abstract: An image forming apparatus includes an image forming device, an apparatus body, a cap, and an operation part. The image forming device includes an image forming face configured to face a recording medium. The image forming device is configured to form an image on the recording medium. The apparatus body is configured to support the image forming device. The cap is movable relative to the apparatus body between a capping position to cap the image forming face and a retracted position to be retracted from the image forming face. The operation part is configured to move the cap from the capping position to the retracted position. The operation part is not operable by a force from an object on which the apparatus body is placed.
    Type: Application
    Filed: December 18, 2020
    Publication date: August 12, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Masatoshi ISHIDA, Tomoya FUJII, Munekazu HIRATA
  • Patent number: 11035268
    Abstract: A method for regenerating an exhaust gas filter on which soot is deposited, including sequentially conducting: a step 1 of impregnating the filter with a liquid having 50% by mass or more of a component having a boiling point of 550° C. or less when an ambient temperature in the filter is at least 40° C. lower than the boiling point; a step 2 of raising the ambient temperature in the filter after the impregnation to a temperature equal to or higher than the boiling point of the component; and a step 3 of supplying an oxygen-containing gas at a temperature exceeding 550° C. to the filter to burn the soot.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: June 15, 2021
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukio Miyairi, Hiroyuki Nagaoka, Tomoya Fujii
  • Patent number: 11016406
    Abstract: An image forming apparatuses includes an apparatus body configured to house a replacement part. The apparatus body includes a guiding face configured to guide a guided face of the replacement part. The guided face is on a side along a movement direction in which the replacement part moves between a set position in the apparatus body and an attaching and detaching position at which the replacement part is attached to and detached from the apparatus body. The apparatus further include a moving device configured to move the replacement part between the set position and the attaching and detaching position, and a pressing device configured to press the guided face of the replacement part against the guiding face of the apparatus body while the replacement part moves between the set position and the attaching and detaching position.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: May 25, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Masashi Ota, Masatoshi Ishida, Yohei Osanai, Satoshi Narai, Takayuki Andoh, Tomoya Fujii, Kunihiko Nishioka, Munekazu Hirata
  • Patent number: 10882333
    Abstract: An image forming apparatus includes a recording device configured to record an image on a recording medium, a main body configured to house the recording device, and a cover rotatably attached to the main body. The main body includes a recording face to be disposed opposite the recording medium, a first face positioned opposite the recording face, and a second face positioned between the recording face and the first face. The cover includes a first cover portion configured to cover the first face of the main body, and a second cover portion configured to cover at least a portion of the second face, and the second cover portion is configured to house a battery.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: January 5, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Yohei Osanai, Takayuki Andoh, Masatoshi Ishida, Satoshi Narai, Tomoya Fujii, Kunihiko Nishioka, Munekazu Hirata, Masashi Ota
  • Patent number: 10855873
    Abstract: An image forming apparatus includes a body, an image forming device configured to form an image on a recording medium and supported by the body, an attachment configured to be removably attached to the body, and a cover configured to be removably attached to the body. The cover is configured to cover the attachment attached to the body. The attachment is configured to switch a state in use of the image forming apparatus by attaching and removing of the attachment to and from the body.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: December 1, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoya Fujii, Takayuki Andoh, Masatoshi Ishida, Yohei Osanai, Satoshi Narai, Kunihiko Nishioka, Masashi Ota
  • Publication number: 20200309003
    Abstract: A method for regenerating an exhaust gas filter on which soot is deposited, including sequentially conducting: a step 1 of impregnating the filter with a liquid having 50% by mass or more of a component having a boiling point of 550° C. or less when an ambient temperature in the filter is at least 40 ° C. lower than the boiling point; a step 2 of raising the ambient temperature in the filter after the impregnation to a temperature equal to or higher than the boiling point of the component; and a step 3 of supplying an oxygen-containing gas at a temperature exceeding 550° C. to the filter to burn the soot.
    Type: Application
    Filed: February 27, 2020
    Publication date: October 1, 2020
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yukio MIYAIRI, Hiroyuki NAGAOKA, Tomoya FUJII
  • Publication number: 20200230986
    Abstract: An image forming apparatus includes an apparatus body, a cover, a first positioning member, and a second positioning member. The apparatus body includes a mounted portion. The cover is detachably mounted on the apparatus body. The cover includes a mounting portion configured to be mounted on the mounted portion of the apparatus body. The first positioning member is configured to position the cover at a first target position in a first direction with respect to the apparatus body. The second positioning member is configured to position the cover at a second target position in a second direction orthogonal to the first direction with respect to the apparatus body, before the mounting portion is mounted on the mounted portion after the cover is positioned at the first target position by the first positioning member.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 23, 2020
    Inventors: Munekazu HIRATA, Tomoya FUJII, Masatoshi ISHIDA, Kunihiko NISHIOKA, Takayuki ANDOH, Masashi OTA, Yohei OSANAI, Satoshi NARAI