Patents by Inventor Hitohiro Maeda

Hitohiro Maeda 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).

  • Electronic device
    Patent number: 7312988
    Abstract: An electronic device includes: a body 12 having an electronic component 20, and a cover 14 pivotally attached to the body and having a liquid crystal panel 36. The electronic component of the body is cooled by a fan 22. The liquid crystal panel of the cover is illuminated by a discharge tube 38 and a reflector 40. An air inlet 44 of the cover is arranged being opposed to an air outlet 30 of the body. The discharge tube is cooled by a flow of air produced by the fan for cooling the electronic component of the body. By cooling the discharge tube, the life of the discharge tube is maintained long.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: December 25, 2007
    Assignee: Fujitsu Limited
    Inventor: Hitohiro Maeda
  • Electronic device
    Publication number: 20060158073
    Abstract: An electronic device includes: a body 12 having an electronic component 20, and a cover 14 pivotally attached to the body and having a liquid crystal panel 36. The electronic component of the body is cooled by a fan 22. The liquid crystal panel of the cover is illuminated by a discharge tube 38 and a reflector 40. An air inlet 44 of the cover is arranged being opposed to an air outlet 30 of the body. The discharge tube is cooled by a flow of air produced by the fan for cooling the electronic component of the body. By cooling the discharge tube, the life of the discharge tube is maintained long.
    Type: Application
    Filed: March 14, 2006
    Publication date: July 20, 2006
    Applicant: FUJITSU LIMITED
    Inventor: Hitohiro Maeda
  • Image forming apparatus
    Patent number: 6021286
    Abstract: A developing portion forms a toner image, which corresponds to a recording image, with a toner which has been electrically charged to a predetermined electrical potential. A transfer portion, to which an electric potential, different from the electric potential of the toner image, is applied, transfers the toner image onto a recording medium. A first transfer-electric-potential applying portion applies a transfer electric potential to the transfer portion. A carrying portion carries the recording medium so as to cause the recording medium to pass by the transfer portion. A second transfer-electric-potential applying portion sets the recording medium and the carrying portion to cause the recording medium and the carrying portion to have a predetermined electric potential corresponding to the transfer electric potential of the transfer portion.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: February 1, 2000
    Assignee: Fujitsu Limited
    Inventors: Tsutomu Kawai, Masakazu Kinoshita, Hidenori Fujioka, Hitohiro Maeda