Patents by Inventor Junki NAKAO

Junki NAKAO 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).

  • Patent number: 11937535
    Abstract: Provided are blades 22R, 22C, 22L rotatably driven about rotational axes XL, XC, XR to be able to cut grass on the ground surface, a housing covering the blades 22R, 22C, 22L and having a lower face thereof opened, a water feeding section provided outside the housing, a water discharging section 54 provided inside the housing for discharging cleaning water fed to the water feeding section, and a water feeding pipe 55 connected to/between the water feeding section and the water discharging section 54. The water discharging section 54 discharges water toward an inner wall face of the housing.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: March 26, 2024
    Assignee: Kubota Corporation
    Inventors: Masaki Takaoka, Junki Nakao, Akihito Mihara, Yusaku Matsuoka, Yuki Hirotsu
  • Publication number: 20220192086
    Abstract: Provided are blades 22R, 22C, 22L rotatably driven about rotational axes XL, XC, XR to be able to cut grass on the ground surface, a housing covering the blades 22R, 22C, 22L and having a lower face thereof opened, a water feeding section provided outside the housing, a water discharging section 54 provided inside the housing for discharging cleaning water fed to the water feeding section, and a water feeding pipe 55 connected to/between the water feeding section and the water discharging section 54. The water discharging section 54 discharges water toward an inner wall face of the housing.
    Type: Application
    Filed: June 15, 2021
    Publication date: June 23, 2022
    Inventors: Masaki Takaoka, Junki Nakao, Akihito Mihara, Yusaku Matsuoka, Yuki Hirotsu
  • Patent number: 9976524
    Abstract: A work vehicle is provided with fuel supply lines that include a first fuel supply line that connects a first fuel tank and a junction. A second fuel supply line connects a second fuel tank and the junction. A common supply line connects the junction and a diesel engine. A fuel pump is provided on the common supply line. A first check valve is installed on the first fuel supply line and opens in accordance with a pressure differential between a pressure in the first fuel tank and a pressure in the junction. A second check valve is installed on the second fuel supply line and opens in accordance with a pressure differential between a pressure in the second fuel tank and a pressure in the junction. A fuel return line returns excess fuel from the diesel engine to the first fuel tank and the second fuel tank.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: May 22, 2018
    Assignee: KUBOTA CORPORATION
    Inventors: Masaki Takaoka, Seiya Yoshida, Junki Nakao, Hideki Aoki, Osami Fujiwara, Hiroyuki Tada
  • Publication number: 20160069309
    Abstract: A work vehicle is provided with fuel supply lines that include a first fuel supply line that connects a first fuel tank and a junction. A second fuel supply line connects a second fuel tank and the junction. A common supply line connects the junction and a diesel engine. A fuel pump is provided on the common supply line. A first check valve is installed on the first fuel supply line and opens in accordance with a pressure differential between a pressure in the first fuel tank and a pressure in the junction. A second check valve is installed on the second fuel supply line and opens in accordance with a pressure differential between a pressure in the second fuel tank and a pressure in the junction. A fuel return line returns excess fuel from the diesel engine to the first fuel tank and the second fuel tank.
    Type: Application
    Filed: March 17, 2015
    Publication date: March 10, 2016
    Applicant: KUBOTA CORPORATION
    Inventors: Masaki TAKAOKA, Seiya YOSHIDA, Junki NAKAO, Hideki AOKI, Osami FUJIWARA, Hiroyuki TADA