Patents by Inventor Ryota Kubo

Ryota Kubo 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: 11952455
    Abstract: The present invention provides a foam having a surface which solates or gelates after absorption of water and appropriately absorbs the water. The foam is prepared by a foam reaction of a mixture comprising at least one polyol, a compound having at least one isocyanate group, and a hydrophilic polymer.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: April 9, 2024
    Assignee: ALCARE CO., LTD.
    Inventors: Takabumi Kubo, Tomoya Tanaka, Ryota Watanabe
  • Publication number: 20230398808
    Abstract: A pencil lead may achieve high levels of both improved density and improved fixability of a hand-drawn line and also be less likely to stain a hand during writing. Examples of this pencil lead include a pencil lead comprising a black porous fired lead body including at least graphite, wherein at least a compound selected from octyldodecyl erucate, oleyl oleate, octyldodecyl oleate, isopropyl palmitate, 2-ethylhexyl palmitate, and propylene glycol monooleate is impregnated in pores of the porous fired lead body. The pores of the black porous fired lead body are preferably impregnated with at least one selected from a terpene phenolic resin, a rosin ester resin, a ketone resin, and a rosin-modified phenolic resin, in addition to the compound.
    Type: Application
    Filed: October 5, 2021
    Publication date: December 14, 2023
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Hiroyuki ARAI, Ryota KUBO, Masaaki MATSUMOTO
  • Publication number: 20230386723
    Abstract: A noise filter that is capable of efficiently removing noise even in a case where a ferrite core having two divided core portions is used. The noise filter includes a tubular ferrite core. The ferrite core includes two divided core portions. The two divided core portions are configured to be divided along divided end surfaces in an axial direction of the ferrite core. The two divided core portions include a platinum group metal in an amount of 0.5% to 2.0% with respect to the total weight of a ferrite powder.
    Type: Application
    Filed: October 14, 2020
    Publication date: November 30, 2023
    Inventor: Ryota KUBO
  • Publication number: 20230242784
    Abstract: A calcined solid drawing material may be capable of drawing a line excellent in color development and transparent while having a high strength regardless of a black core or a colored core. The calcined solid drawing material may include a skeleton core including at least an extender and a binder component, and a drawn line permeability T of the drawn line is 0.8 or more, as calculated by Equation (I): T=(L*w?L*b)/(L*b?L*p)??(I), wherein L*w is brightness of a drawn line written on white paper, L*b is brightness of a drawn line written on a black paper, and L*p is brightness of the black paper.
    Type: Application
    Filed: June 11, 2021
    Publication date: August 3, 2023
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Ryota KUBO, Satoru BANZAI
  • Publication number: 20210371690
    Abstract: A non-baked pencil lead contains a colorant, a filler, a resin, and cellulose nanofibers.
    Type: Application
    Filed: June 25, 2019
    Publication date: December 2, 2021
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Ryota KUBO, Satoru BANZAI
  • Patent number: 9482991
    Abstract: An image forming apparatus includes an image holding body, a developing device, a transfer device, a collection device, a container, and a transport member. The image holding body includes a surface on which a latent image is formed. The developing device develops the latent image into a visual image with developer. The transfer device transfers the visual image onto a transfer medium. The collection device collects the developer remaining on the surface of the image holding body after the visual image has been transferred. The container contains new developer supplied to the developing device. The image forming apparatus has a channel that has a first sub-channel and a second sub-channel. The developer flows into the first sub-channel from one of the collection device and the container and the second sub-channel from the other of the collection device and the container.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: November 1, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Ryota Kubo, Kiyotoshi Kaneyama, Kuniaki Tanaka, Yoshinobu Kariya, Hideaki Ozawa, Yasutomo Ishii, Yuki Sekura, Tatsuya Soga, Shintaro Hattori
  • Publication number: 20160116863
    Abstract: An image forming apparatus includes an image holding body, a developing device, a transfer device, a collection device, a container, and a transport member. The image holding body includes a surface on which a latent image is formed. The developing device develops the latent image into a visual image with developer. The transfer device transfers the visual image onto a transfer medium. The collection device collects the developer remaining on the surface of the image holding body after the visual image has been transferred. The container contains new developer supplied to the developing device. The image forming apparatus has a channel that has a first sub-channel and a second sub-channel. The developer flows into the first sub-channel from one of the collection device and the container and the second sub-channel from the other of the collection device and the container.
    Type: Application
    Filed: May 20, 2015
    Publication date: April 28, 2016
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Ryota KUBO, Kiyotoshi KANEYAMA, Kuniaki TANAKA, Yoshinobu KARIYA, Hideaki OZAWA, Yasutomo ISHII, Yuki SEKURA, Tatsuya SOGA, Shintaro HATTORI
  • Patent number: 8923724
    Abstract: A driving device includes a drive source that generates a force for moving a cleaning member that cleans an elongated member while moving in a longitudinal direction of the elongated member; an overload limiter disposed between an input side and an output side of a transmission unit that transmits the force from the drive source to the cleaning member, the overload limiter interrupting transmission of the force if a magnitude of the force reaches a predetermined magnitude; and a rotation detector disposed in the transmission unit on an output side of the overload limiter, the rotation detector detecting rotation caused by the force.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: December 30, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hirohisa Hoshino, Ryota Kubo
  • Patent number: 8862024
    Abstract: An attachable/detachable body includes a main body, a positioned portion, a transmitted member a contacting portion. The main body of the attachable/detachable body is supported to be attachable to and detachable from a main body of an image forming apparatus. The positioned portion is positioned at a positioning portion provided at the main body of the image forming apparatus. The transmitted member is connected to a transmission member provided at the main body of the image forming apparatus to transmit a drive thereto, the transmitted member transmitting the drive to a driven member provided at the main body of the attachable/detachable body. The contacting portion comes into contact with a contacted portion that is provided at the main body of the image forming apparatus to be connected electrically thereto.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: October 14, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Ryota Kubo, Taro Mitsui
  • Publication number: 20140086601
    Abstract: A driving device includes a drive source that generates a force for moving a cleaning member that cleans an elongated member while moving in a longitudinal direction of the elongated member; an overload limiter disposed between an input side and an output side of a transmission unit that transmits the force from the drive source to the cleaning member, the overload limiter interrupting transmission of the force if a magnitude of the force reaches a predetermined magnitude; and a rotation detector disposed in the transmission unit on an output side of the overload limiter, the rotation detector detecting rotation caused by the force.
    Type: Application
    Filed: February 4, 2013
    Publication date: March 27, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hirohisa HOSHINO, Ryota KUBO
  • Publication number: 20120051781
    Abstract: An attachable/detachable body includes a main body, a positioned portion, a transmitted member a contacting portion. The main body of the attachable/detachable body is supported to be attachable to and detachable from a main body of an image forming apparatus. The positioned portion is positioned at a positioning portion provided at the main body of the image forming apparatus. The transmitted member is connected to a transmission member provided at the main body of the image forming apparatus to transmit a drive thereto, the transmitted member transmitting the drive to a driven member provided at the main body of the attachable/detachable body. The contacting portion comes into contact with a contacted portion that is provided at the main body of the image forming apparatus to be connected electrically thereto.
    Type: Application
    Filed: August 11, 2011
    Publication date: March 1, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Ryota KUBO, Taro MITSUI
  • Patent number: 8027611
    Abstract: There is provided an image forming apparatus including: an image carrier carrying an image; a charging roll charging the image carrier; a cleaning member configured to be brought into contact with the charging roll for cleaning the charging roll; a first holding portion detachably provided in an apparatus main body for holding the image carrier; and a second holding portion provided within the apparatus main body independently from the first holding portion, for holding the cleaning member.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: September 27, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomokazu Kurita, Junichi Ozawa, Ryota Kubo, Mitsuhiro Matsumoto, Shigeo Ohno
  • Publication number: 20110069988
    Abstract: There is provided an image forming apparatus including: an image carrier carrying an image; a charging roll charging the image carrier; a cleaning member configured to be brought into contact with the charging roll for cleaning the charging roll; a first holding portion detachably provided in an apparatus main body for holding the image carrier; and a second holding portion provided within the apparatus main body independently from the first holding portion, for holding the cleaning member.
    Type: Application
    Filed: November 29, 2010
    Publication date: March 24, 2011
    Inventors: TOMOKAZU KURITA, Junichi Ozawa, Ryota Kubo, Mitsuhiro Matsumoto, Shigeo Ohno
  • Patent number: 7860428
    Abstract: There is provided an image forming apparatus including: an image carrier carrying an image; a charging roll charging the image carrier; a cleaning member configured to be brought into contact with the charging roll for cleaning the charging roll; a first holding portion detachably provided in an apparatus main body for holding the image carrier; and a second holding portion provided within the apparatus main body independently from the first holding portion, for holding the cleaning member.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: December 28, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomokazu Kurita, Junichi Ozawa, Ryota Kubo, Mitsuhiro Matsumoto, Shigeo Ohno
  • Publication number: 20070269234
    Abstract: There is provided an image forming apparatus including: an image carrier carrying an image; a charging roll charging the image carrier; a cleaning member configured to be brought into contact with the charging roll for cleaning the charging roll; a first holding portion detachably provided in an apparatus main body for holding the image carrier; and a second holding portion provided within the apparatus main body independently from the first holding portion, for holding the cleaning member.
    Type: Application
    Filed: March 28, 2007
    Publication date: November 22, 2007
    Inventors: Tomokazu Kurita, Junichi Ozawa, Ryota Kubo, Mitsuhiro Matsumoto, Shigeo Ohno
  • Patent number: D1016349
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: February 27, 2024
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventor: Ryota Kubo