Patents by Inventor Daisuke HIRAJO

Daisuke HIRAJO 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).

  • Powder/granular material spreader
    Patent number: 11465855
    Abstract: A powder/granular material spreader that allows easy cleaning of a passage for powder/granular material includes a housing that houses motors, a passage that extends through the housing and provides a passage for the powder/granular material, a roller provided in the passage to feed the powder/granular material and that is driven by one of the motors, and a spinner driven by the motor to spread the powder/granular material. The passage includes an integral first wall that shields the motor from the passage, an integral second wall that shields the motor from the passage, and an opening located at an inlet of the passage. The opening is integral with the first wall and the second wall. The housing includes an integral cover that covers tops and sides of the motors, and fits over an outer surface of the opening. A seal is provided at a location where the opening and the cover are connected with each other.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: October 11, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Ryu Shinomiya, Masanori Yoshihara, Daisuke Hirajo, Masaru Nakazawa, Satoshi Kato
  • POWDER/GRANULAR MATERIAL SPREADER
    Publication number: 20200288695
    Abstract: A powder/granular material spreader that allows easy cleaning of a passage for powder/granular material includes a housing that houses motors, a passage that extends through the housing and provides a passage for the powder/granular material, a roller provided in the passage to feed the powder/granular material and that is driven by one of the motors, and a spinner driven by the motor to spread the powder/granular material. The passage includes an integral first wall that shields the motor from the passage, an integral second wall that shields the motor from the passage, and an opening located at an inlet of the passage. The opening is integral with the first wall and the second wall. The housing includes an integral cover that covers tops and sides of the motors, and fits over an outer surface of the opening. A seal is provided at a location where the opening and the cover are connected with each other.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 17, 2020
    Inventors: Ryu SHINOMIYA, Masanori YOSHIHARA, Daisuke HIRAJO, Masaru NAKAZAWA, Satoshi KATO