Patents by Inventor Keijiro Ozaki

Keijiro Ozaki 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).

  • Heater control device and heater control method
    Patent number: 11035275
    Abstract: The present invention provides a heater control device and a heater control method capable of suppressing a maximum value of a current flowing through a current supply circuit to a heater in a reducing agent supplier. The heater control device is a heater control device including: a tank heater for heating a reducing agent stored in a tank; and a piping heater for heating the reducing agent in a flow channel including a supply channel, and includes: a first current supply circuit that supplies a current to the tank heater; a second current supply circuit that supplies a current to the piping heater; a common current supply circuit that connects between a battery and each of the first current supply circuit and the second current supply circuit; and a heater control unit that controls driving of the tank heater and the piping heater.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: June 15, 2021
    Assignee: Bosch Corporation
    Inventors: Keisuke Sakuma, Keijiro Ozaki, Eiichi Kitazawa, Masahiro Yamaguchi
  • HEATER CONTROL DEVICE AND HEATER CONTROL METHOD
    Publication number: 20200102869
    Abstract: The present invention provides a heater control device and a heater control method capable of suppressing a maximum value of a current flowing through a current supply circuit to a heater in a reducing agent supplier. The heater control device is a heater control device including: a tank heater for heating a reducing agent stored in a tank; and a piping heater for heating the reducing agent in a flow channel including a supply channel, and includes: a first current supply circuit that supplies a current to the tank heater; a second current supply circuit that supplies a current to the piping heater; a common current supply circuit that connects between a battery and each of the first current supply circuit and the second current supply circuit; and a heater control unit that controls driving of the tank heater and the piping heater.
    Type: Application
    Filed: November 7, 2017
    Publication date: April 2, 2020
    Inventors: Keisuke Sakuma, Keijiro Ozaki, Eiichi Kitazawa, Masahiro Yamaguchi