Patents by Inventor Keiko Yutani

Keiko Yutani 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).

  • Equipment unit with imperceptible information recorded thereon being used with an image forming device and an image forming device comprising the same
    Patent number: 7010236
    Abstract: An equipment unit such as a toner cartridge detachably equipped to an image forming device has a product information related to the equipment unit recorded on the outer surface thereof using an organic pigment having infrared reflectiveness that cannot be observed normally with the naked eye.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: March 7, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohji Shinkawa, Hideyuki Nishimura, Takafumi Nagai, Takeshi Murata, Keiko Yutani, Hitoshi Nagahama
  • Image forming device, toner and copy
    Patent number: 6957024
    Abstract: An image forming device 1 comprises an electrophotographic processing unit 48 equipped with a developer 44 including a developing agent containing black toner having infrared reflectiveness, and forms an image having infrared reflective property. The image forming device 1 further comprises a detector 51 for detecting whether the formed toner image has infrared reflective property or not and a control unit for controlling each unit based on the result of detection by the detector 51, so as to form a black image having infrared reflective property in a reliable manner.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: October 18, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohji Shinkawa, Hideyuki Nishimura, Takeshi Murata, Satoshi Machino, Keiko Yutani, Hitoshi Nagahama
  • Image forming device, toner and copy
    Publication number: 20030215249
    Abstract: An image forming device 1 comprises an electrophotographic processing unit 48 equipped with a developer 44 including a developing agent containing black toner having infrared reflectiveness, and forms an image having infrared reflective property. The image forming device 1 further comprises a detector 51 for detecting whether the formed toner image has infrared reflective property or not and a control unit for controlling each unit based on the result of detection by the detector 51, so as to form a black image having infrared reflective property in a reliable manner.
    Type: Application
    Filed: April 28, 2003
    Publication date: November 20, 2003
    Inventors: Kohji Shinkawa, Hideyuki Nishimura, Takeshi Murata, Satoshi Machino, Keiko Yutani, Hitoshi Nagahama
  • Equipment unit for image forming device and image forming device comprising the same
    Publication number: 20030198480
    Abstract: An equipment unit such as a toner cartridge detachably equipped to an image forming device has a product information related to the equipment unit recorded on the outer surface thereof using an organic pigment having infrared reflectiveness that cannot be observed normally with the naked eye.
    Type: Application
    Filed: April 7, 2003
    Publication date: October 23, 2003
    Inventors: Kohji Shinkawa, Hideyuki Nishimura, Takafumi Nagai, Takeshi Murata, Keiko Yutani, Hitoshi Nagahama