Patents by Inventor Wataru Yoshitomi

Wataru Yoshitomi 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: 11633969
    Abstract: A control unit obtains a captured image of a reference workpiece by a second image capturing unit after a droplet ejected from a droplet ejecting head lands toward a reference mark formed on an upper surface of the reference workpiece, detects a positional deviation amount of a position of the reference mark and a landing position of the droplet based on the captured image, and calculates the correction amounts of the relative positions of a workpiece table and a droplet ejecting head based on the positional deviation amount.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: April 25, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kazuhito Miyazaki, Akira Kakino, Wataru Yoshitomi
  • Patent number: 11623237
    Abstract: Disclosed is droplet ejecting apparatus that ejects droplets of a functional liquid onto a workpiece to draw a pattern. The droplet ejecting apparatus includes: a workpiece table; a droplet ejecting head configured to eject the droplets onto the workpiece placed on the workpiece table; a movement mechanism configured to relatively move the workpiece table and the droplet ejecting head in a main scanning direction and a sub-scanning direction; and a control unit configured to: detect a position of the workpiece or a position of the workpiece table while relatively moving the workpiece table and the droplet ejecting head along a plurality of scanning lines extending in the main scanning direction and set side by side in the sub-scanning direction; and create, based on a detection result, a correction table that indicates a correlation between a position of the movement mechanism and a positional correction amount of the workpiece table.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: April 11, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kazuhito Miyazaki, Akira Kakino, Wataru Yoshitomi
  • Patent number: 11577269
    Abstract: Disclosed is a workpiece processing apparatus that performs a predetermined processing on a workpiece. The workpiece processing apparatus includes: a workpiece table configured to place the workpiece thereon; a processor configured to process the workpiece placed on the workpiece table; a movement mechanism configured to relatively move the workpiece table and the processor; a position measuring device configured to measure a position of the movement mechanism; a detector configured to detect a position of the workpiece placed on the workpiece table; and a corrector configured to calculate a positional correction amount of the workpiece table based on a measurement result of the position measuring device and a detection result of the detector.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: February 14, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Wataru Yoshitomi, Koutarou Onoue, Yasushi Kuranaga, Kazuki Tashima
  • Patent number: 11571706
    Abstract: A droplet ejecting apparatus includes a workpiece table configured to place a workpiece thereon, a droplet ejecting head configured to eject droplets onto the workpiece placed on the workpiece table, a Y-axis linear motor configured to move the workpiece table in a main scanning direction (Y-axis direction), a position detector configured to detect a position of a carriage mark, and a control unit configured to calculate the positional deviation amount in the main scanning direction between a detection position detected by the position detector and a reference position of the carriage mark and correct a droplet ejecting timing of the droplet ejecting head based on the positional deviation amount.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: February 7, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Fumihiro Miyazaki, Kazuhito Miyazaki, Norihide Sagara, Wataru Yoshitomi, Koutarou Onoue
  • Publication number: 20180261472
    Abstract: A control unit obtains a captured image of a reference workpiece by a second image capturing unit after a droplet ejected from a droplet ejecting head lands toward a reference mark formed on an upper surface of the reference workpiece, detects a positional deviation amount of a position of the reference mark and a landing position of the droplet based on the captured image, and calculates the correction amounts of the relative positions of a workpiece table and a droplet ejecting head based on the positional deviation amount.
    Type: Application
    Filed: March 5, 2018
    Publication date: September 13, 2018
    Inventors: Kazuhito MIYAZAKI, Akira KAKINO, Wataru YOSHITOMI
  • Publication number: 20180257100
    Abstract: Disclosed is a workpiece processing apparatus that performs a predetermined processing on a workpiece. The workpiece processing apparatus includes: a workpiece table configured to place the workpiece thereon; a processor configured to process the workpiece placed on the workpiece table; a movement mechanism configured to relatively move the workpiece table and the processor; a position measuring device configured to measure a position of the movement mechanism; a detector configured to detect a position of the workpiece placed on the workpiece table; and a corrector configured to calculate a positional correction amount of the workpiece table based on a measurement result of the position measuring device and a detection result of the detector.
    Type: Application
    Filed: February 26, 2018
    Publication date: September 13, 2018
    Inventors: Wataru Yoshitomi, Koutarou Onoue, Yasushi Kuranaga, Kazuki Tashima
  • Publication number: 20180257101
    Abstract: Disclosed is droplet ejecting apparatus that ejects droplets of a functional liquid onto a workpiece to draw a pattern. The droplet ejecting apparatus includes: a workpiece table; a droplet ejecting head configured to eject the droplets onto the workpiece placed on the workpiece table; a movement mechanism configured to relatively move the workpiece table and the droplet ejecting head in a main scanning direction and a sub-scanning direction; and a control unit configured to: detect a position of the workpiece or a position of the workpiece table while relatively moving the workpiece table and the droplet ejecting head along a plurality of scanning lines extending in the main scanning direction and set side by side in the sub-scanning direction; and create, based on a detection result, a correction table that indicates a correlation between a position of the movement mechanism and a positional correction amount of the workpiece table.
    Type: Application
    Filed: March 5, 2018
    Publication date: September 13, 2018
    Inventors: Kazuhito MIYAZAKI, Akira KAKINO, Wataru YOSHITOMI
  • Publication number: 20180257099
    Abstract: A droplet ejecting apparatus includes a workpiece table configured to place a workpiece thereon, a droplet ejecting head configured to eject droplets onto the workpiece placed on the workpiece table, a Y-axis linear motor configured to move the workpiece table in a main scanning direction (Y-axis direction), a position detector configured to detect a position of a carriage mark, and a control unit configured to calculate the positional deviation amount in the main scanning direction between a detection position detected by the position detector and a reference position of the carriage mark and correct a droplet ejecting timing of the droplet ejecting head based on the positional deviation amount.
    Type: Application
    Filed: February 27, 2018
    Publication date: September 13, 2018
    Inventors: Fumihiro Miyazaki, Kazuhito Miyazaki, Norihide Sagara, Wataru Yoshitomi, Koutarou Onoue