Patents by Inventor Ai Kobayashi

Ai Kobayashi 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: 20190137909
    Abstract: An image forming apparatus fixes a toner image on a transfer material at a fixing portion by applying an AC voltage from an AC power source to a fixing unit and includes a conductive pre-transfer guide on a position at which the transfer material nipped by a transfer portion and the fixing portion is in contact therewith. A capacitor and a Zener diode which is connected to the capacitor in parallel and maintains the pre-transfer guide at a predetermined voltage in a state in which a toner image is transferred to the transfer material nipped by the fixing portion and the transfer portion are arranged between the pre-transfer guide and the ground.
    Type: Application
    Filed: October 30, 2018
    Publication date: May 9, 2019
    Inventors: Kensuke Umeda, Shinsuke Kobayashi, Ai Suzuki
  • Patent number: 5656751
    Abstract: Disclosed is a dichroic crystal including at least one member selected from the group consisting of phtharocyanine, a phtharocyanine derivative, phtharocyanine with a central metal introduced therein, a phtharocyanine derivative with a central metal introduced therein, and iodine. It is precipitated when the iodine is added to a solution containing the member, and it includes the iodine in a form of I.sub.3.sup.- and I.sub.5.sup.- ions. It not only has a high dichroic property but also superb heat resistance and weatherability, so that it is applicable to suspended particles display devices used in severe environments.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: August 12, 1997
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Hiromitsu Tanaka, Hisato Takeuchi, Arimitsu Usuki, Kazuo Tojima, Atsushi Shirasawa, Ai Kobayashi
  • Patent number: 5051718
    Abstract: A thermistor element composed substantially of a vanadium-containing titania having dissolved therein 0.01 to 10 at. %, based on titanium, of vanadium and optionally 10 at. % or less, based on titanium, of at least one element selected from the group containing of cobalt, copper, manganese, iron, nickel, bismuth, strontium, barium, lead and zinc. A gas sensor using the thermistor element as a temperature sensor is described.
    Type: Grant
    Filed: September 18, 1990
    Date of Patent: September 24, 1991
    Assignee: Tokuyama Soda Kabushiki Kaisha
    Inventors: Kazuko Satake, Ai Kobayashi