Patents by Inventor Taichi Urayama

Taichi Urayama 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: 20110052286
    Abstract: An image bearing member-protecting agent which is supplied to an image bearing member for protecting the image bearing member, the image bearing member-protecting agent including a fatty acid metal salt and an inorganic lubricant, wherein the image bearing member-protecting agent is formed by compression molding of powder containing at least the fatty acid metal salt and the inorganic lubricant, and wherein the image bearing member-protecting agent satisfies the relation 1.0<A/B, where A denotes a density at end portions in the longitudinal direction of the image bearing member-protecting agent and B denotes a density at a central portion in the longitudinal direction of the image bearing member-protecting agent.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 3, 2011
    Inventors: Taichi Urayama, Hiroshi Nakai, Kunio Hasegawa, Shinya Tanaka
  • Publication number: 20110038656
    Abstract: A protecting agent-supplying device which supplies, to an image bearing member, an image bearing member-protecting agent for protecting the image bearing member, wherein the image bearing member-protecting agent contains at least a fatty acid zinc salt and boron nitride, and wherein the protecting agent-supplying device supplies the image bearing member-protecting agent to the image bearing member so that the amount of zinc (Zn) present on a surface of the image bearing member satisfies the relation 0.4?Zn?2.5 (Atomic %) and the amount of boron (B) present on the surface of the image bearing member satisfies the relation 0.2?B?30.2 (Atomic %).
    Type: Application
    Filed: August 10, 2010
    Publication date: February 17, 2011
    Applicant: Ricoh Company, Ltd.
    Inventors: Kunio Hasegawa, Hiroshi Nakai, Shinya Tanaka, Taichi Urayama
  • Publication number: 20110008088
    Abstract: The image forming method includes applying a protective agent including a fatty acid metal salt to a surface of an image bearing member; forming an electrostatic latent image on the surface of the image bearing member; and developing the electrostatic latent image with a developer including toner and boron nitride to form a visual image. The image forming apparatus includes an image bearing member; a latent image forming device configured to form an electrostatic latent image on a surface of the image bearing member; developing device configured to develop the electrostatic latent image with a developer including toner and boron nitride to form a visual image on the surface of the image bearing member; and a protective agent applying device configured to apply a protective agent including a fatty acid metal salt to the surface of the image bearing member.
    Type: Application
    Filed: July 13, 2010
    Publication date: January 13, 2011
    Inventors: Hiroshi Nakai, Kunio Hasegawa, Shinya Tanaka, Taichi Urayama
  • Publication number: 20100310291
    Abstract: The present invention provides an image-bearing member protecting agent, which has a block shape and is used in an image forming process where the image-bearing member protecting agent is applied or attached to a surface of an image bearing member while being scraped off with a roll-shaped brush, the image-bearing member protecting agent including: a fatty acid metal salt, wherein the image-bearing member protecting agent includes a plurality of small blocks and has such an orientation that one or more of the small blocks are easily separated from other small blocks, and a plurality of oriented surfaces of the plurality of small blocks are arranged in a laminated state in a substantially same direction.
    Type: Application
    Filed: June 2, 2010
    Publication date: December 9, 2010
    Inventors: Shinya Tanaka, Hiroshi Nakai, Kunio Hasegawa, Taichi Urayama
  • Publication number: 20100239309
    Abstract: An image-bearing member protecting agent including a fatty acid metal salt, and an inorganic lubricant, wherein the image-bearing member protecting agent is a solid formed by compression molding a particulate or granulated raw material containing the fatty acid metal salt and the inorganic lubricant, and applied or adhered to a surface of an image bearing member, and wherein the image-bearing member protecting agent has a front surface which is a side of the image-bearing member protecting agent. to be used at the beginning, and a rear surface which is a side thereof to be left when most of the image-bearing member protecting agent is used up, and the image-bearing member protecting agent has a density decreasing from the front surface toward the rear surface.
    Type: Application
    Filed: March 11, 2010
    Publication date: September 23, 2010
    Inventors: Shinya Tanaka, Hiroshi Nakai, Kunio Hasegawa, Taichi Urayama
  • Publication number: 20100209143
    Abstract: An image forming apparatus includes an image bearing member configured to bear a toner image, a protective layer forming device configured to apply a protective agent to a surface of the image bearing member with a brush-shaped protective agent applicator, and a surface roughness maintainer configured to maintain a surface roughness Ry of a contact surface of the protective agent with the brush-shaped protective agent applicator at 500 ?m or less. The protective agent is a solid material in which a granular material comprising a fatty acid metallic salt is compressed.
    Type: Application
    Filed: February 17, 2010
    Publication date: August 19, 2010
    Inventors: Hiroshi Nakai, Kunio Hasegawa, Shinya Tanaka, Taichi Urayama