Patents by Inventor Naohiro Masuda

Naohiro Masuda 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: 11400466
    Abstract: To improve actual coating efficiency, the present invention has a coating robot provided with a coating unit configured by a plurality of rotary atomizing type electrostatic coating machines horizontally arranged, and a coating control apparatus that controls the coating unit and the coating robot. A diameter of each of bells is 50 mm or less. The coating material discharge amount of each rotary atomizing type electrostatic coating machine is 400 cc/min or less. A coating distance between each bell and a surface to be coated of a workpiece is controlled between 50 mm to 150 mm. The coating material discharge amounts of the plurality of electrostatic coating machines are controlled for the respective coating machines. The control of the coating material discharge amounts includes a pause of coating material discharge.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: August 2, 2022
    Assignee: Ransburg Industrial Finishing K.K.
    Inventors: Akihiko Arichi, Tatsuya Tanikawa, Masato Miura, Osamu Yoshida, Yoshiji Yokomizo, Naohiro Masuda
  • Patent number: 11213839
    Abstract: A coating device includes a rotary head, a power supply part that applies a voltage to the rotary head, and a control part that controls the power supply part. The rotary head is configured so that a coating material is electrostatically atomized. The control part is configured so as to calculate a discharge current based on a total current flowing from the power supply part to the rotary head and a leak current, and control the power supply part based on the discharge current.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: January 4, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, Trinity Industrial Corporation, Ransburg Industrial Finishing K.K.
    Inventors: Shinji Tani, Akira Numasato, Kazuki Tanaka, Takahito Kondo, Yuki Murai, Yuki Hirai, Atsushi Tomita, Kenji Okamoto, Naohiro Masuda
  • Publication number: 20200094273
    Abstract: A coating device includes a rotary head, a power supply part that applies a voltage to the rotary head, and a control part that controls the power supply part. The rotary head is configured so that a coating material is electrostatically atomized. The control part is configured so as to calculate a discharge current based on a total current flowing from the power supply part to the rotary head and a leak current, and control the power supply part based on the discharge current.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 26, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, Trinity Industrial Corporation, Ransburg Industrial Finishing K.K.
    Inventors: Shinji Tani, Akira Numasato, Kazuki Tanaka, Takahito Kondo, Yuki Murai, Yuki Hirai, Atsushi Tomita, Kenji Okamoto, Naohiro Masuda
  • Patent number: 10543494
    Abstract: PROBLEM TO BE SOLVED: To evolve a spark discharge preventing effect of an electrostatic coating device. SOLUTION: One coating robot has an arm equipped with a plurality of electrostatic coating devices 100 close to each other and the plurality of the electrostatic coating devices 100 is connected in parallel with each other to one high-voltage generator 102. A hollow rotary shaft 108 driven by an air motor 104 is disposed with nine plate-shaped resistors 120 arranged circumferentially at intervals. The nine plate-shaped resistors 120 are connected in series and a high voltage is applied via the resistors 120 to a rotary atomization head 110. The rotary atomization head 110 is made of a semiconductive resin.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: January 28, 2020
    Assignee: Ransburg Industrial Finishing K.K.
    Inventors: Osamu Yoshida, Yoshiji Yokomizo, Naohiro Masuda
  • Publication number: 20170001206
    Abstract: PROBLEM TO BE SOLVED: To evolve a spark discharge preventing effect of an electrostatic coating device. SOLUTION: One coating robot has an arm equipped with a plurality of electrostatic coating devices 100 close to each other and the plurality of the electrostatic coating devices 100 is connected in parallel with each other to one high-voltage generator 102. A hollow rotary shaft 108 driven by an air motor 104 is disposed with nine plate-shaped resistors 120 arranged circumferentially at intervals. The nine plate-shaped resistors 120 are connected in series and a high voltage is applied via the resistors 120 to a rotary atomization head 110. The rotary atomization head 110 is made of a semiconductive resin.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 5, 2017
    Inventors: Osamu Yoshida, Yoshiji Yokomizo, Naohiro Masuda
  • Publication number: 20160303588
    Abstract: To improve actual coating efficiency, the present invention has a coating robot provided with a coating unit configured by a plurality of rotary atomizing type electrostatic coating machines horizontally arranged, and a coating control apparatus that controls the coating unit and the coating robot. A diameter of each of bells is 50 mm or less. The coating material discharge amount of each rotary atomizing type electrostatic coating machine is 400 cc/min or less. A coating distance between each bell and a surface to be coated of a workpiece is controlled between 50 mm to 150 mm. The coating material discharge amounts of the plurality of electrostatic coating machines are controlled for the respective coating machines. The control of the coating material discharge amounts includes a pause of coating material discharge.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 20, 2016
    Inventors: Akihiko Arichi, Tatsuya Tanikawa, Masato Miura, Osamu Yoshida, Yoshiji Yokomizo, Naohiro Masuda