Patents by Inventor Shigeru Nitta

Shigeru Nitta 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).

  • Operation permission control device and machine having the same mounted thereon
    Patent number: 8659387
    Abstract: A function for authenticating an operator to control whether to permit them to operate a vehicle (20) can be added to the vehicle by simple modification. An operation permission control device (22) is installed on the vehicle (20). The operation permission control device (22) incorporates a relay inserted in the middle of a start signal line (47) connecting a key switch (46) and vehicle start circuit (48) (starter relay of an engine-powered vehicle or main controller of a battery-powered vehicle) and can open and close the start signal line (47). The operation permission control device (22) reads data of a authentication card (34) carried by the operator, collates the read data with preprogrammed data in a removable set memory a (32). If the data match, the device connects the start signal line (47) to enable start of the vehicle.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: February 25, 2014
    Assignees: Komatsu Utility Co., Ltd., Komatsu Ltd.
    Inventors: Shigeru Nitta, Hajime Iida, Manabu Uenosono, Takeshi Kurokawa, Shinichiro Okubo, Kazuaki Ohtsuki
  • Operation Permission Control Device and Machine Having the Same Mounted Thereon
    Publication number: 20090128356
    Abstract: A function for authenticating an operator to control whether to permit them to operate a vehicle (20) can be added to the vehicle by simple modification. An operation permission control device (22) is installed on the vehicle (20). The operation permission control device (22) incorporates a relay inserted in the middle of a start signal line (47) connecting a key switch (46) and vehicle start circuit (48) (starter relay of an engine-powered vehicle or main controller of a battery-powered vehicle) and can open and close the start signal line (47). The operation permission control device (22) reads data of a authentication card (34) carried by the operator, collates the read data with preprogrammed data in a removable set memory a (32). If the data match, the device connects the start signal line (47) to enable start of the vehicle.
    Type: Application
    Filed: July 6, 2006
    Publication date: May 21, 2009
    Applicants: Komatsu Utility Co., Ltd., Komatsu Ltd.
    Inventors: Shigeru Nitta, Hajime Iida, Manabu Uenosono, Takeshi Kurokawa, Shinichiro Okubo, Kazuaki Ohtsuki