Patents by Inventor Junichi Koshikawa

Junichi Koshikawa 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).

  • Automatic opening/closing device of vehicular opening/closing body and controlling method
    Patent number: 6594567
    Abstract: An automatic opening/closing device of a vehicular opening/closing body, which gradually increases a duty until a rotary pulse cycle is definitely decided at a stage before a jamming determining time comes, thus making it possible to move a backdoor even if a resistance due to self-weight of the backdoor is generated and to prevent a malfunction in which the backdoor is halted or an operation thereof is inverted even under a state where the backdoor does not jam any foreign object.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: July 15, 2003
    Assignee: Ohi Seisakusho Co., Ltd.
    Inventors: Zhenjia Zhou, Junichi Koshikawa
  • Automatic opening/closing device of vehicular opening/closing body and controlling method therefor
    Publication number: 20030018419
    Abstract: An automatic opening/closing device of a vehicular opening/closing body, which gradually increases a duty until a rotary pulse cycle is definitely decided at a stage before a jamming determining time comes, thus making it possible to move a backdoor even if a resistance due to self-weight of the backdoor is generated and to prevent a malfunction in which the backdoor is halted or an operation thereof is inverted even under a state where the backdoor does not jam any foreign object.
    Type: Application
    Filed: July 18, 2002
    Publication date: January 23, 2003
    Inventors: Zhenjia Zhou, Junichi Koshikawa