Patents by Inventor Koshi Sasaki

Koshi Sasaki 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).

  • Motor control device in electric motor-operated vehicle
    Patent number: 5764009
    Abstract: An electric motor control for a series-wound DC motor for providing speed control and also for controlling regenerative braking. The regenerative braking is energized either when the accelerator pedal is released and/or when a brake pedal is depressed. In addition, the control circuit limits the total vehicle speed and brakes the vehicle if it is stopped and begins to roll due to gravity.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: June 9, 1998
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Mitsuo Fukaya, Hiroaki Takechi, Koshi Sasaki
  • Process for producing aromatic carboxylic acid
    Patent number: 5760288
    Abstract: Provided is a process for producing an aromatic carboxylic acid by oxidizing an aromatic compound having an alkyl group or a partially-oxidized alkyl group with a molecular-oxygen-containing gas in an aqueous medium, characterized in that a compound in which a transition metal is incorporated into a heteropoly-acid skeleton having a deficient structural moiety is used as a catalyst.In accordance with the present invention, the aromatic carboxylic acid can be produced efficiently at low costs.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: June 2, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yoshio Asahi, Yosuke Iida, Koshi Sasaki, Yuji Mizuho
  • Surface-modified molded product of synthetic resin and process for producing it
    Patent number: 5626910
    Abstract: A process for producing a surface-modified molded product of synthetic resin, which comprises contacting a fluorine-containing gas to the surface of a molded product of synthetic resin and then contacting a polymerizable monomer to form a new polymer layer on the surface of the molded product.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: May 6, 1997
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yasuo Tanabe, Koshi Sasaki, Hidehiko Ohara, Naoshi Imaki
  • Fluorine-containing polyolefin non-woven fabric and method of manufacturing the same
    Patent number: 5484651
    Abstract: A fluorine-containing, polyolefin fiber non-woven fabric having enhanced resistance to degradation when exposed to a potassium hydride solution is produced by exposing a polyolefin fiber non-woven fabric to a gaseous atmosphere comprising F.sub.2 and O.sub.2 gases in certain volumetric ratios.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: January 16, 1996
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Koshi Sasaki, Hidehiko Ohara, Naoshi Imaki