Patents by Inventor Katsuaki Takeuchi

Katsuaki Takeuchi 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).

  • Publication number: 20240136177
    Abstract: A template substrate including a first seed region and a growth restricting region that are aligned in a first direction, and a first semiconductor part positioned above the template substrate are provided, the first semiconductor part includes a first base positioned above the first seed region, and a first wing connected to the first base, the first wing facing the growth restricting region with a first void space interposed therebetween, the first wing includes an edge positioned above the growth restricting region, and a ratio of a width of the first void space with respect to a thickness of the first void space in the first direction is equal to or larger than 5.0.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 25, 2024
    Applicant: KYOCERA CORPORATION
    Inventors: Takeshi KAMIKAWA, Yuta AOKI, Kazuma TAKEUCHI, Katsuaki MASAKI, Fumio YAMASHITA
  • Patent number: 11148424
    Abstract: A printing apparatus comprises a main tank, an intermediate tank, and a control unit controlling an amount of the ink stored in the intermediate tank by a normal replenishing operation for increasing an ink remaining amount to a normal amount more than a first reference amount by feeding the ink from the main tank to the intermediate tank if the ink remaining amount falls below the first reference amount. The control unit controls the amount of the ink stored in the intermediate tank by an extraordinary replenishing operation for increasing the ink remaining amount to a second reference amount by feeding the ink from the main tank to the intermediate tank if the ink remaining amount falls below the second reference amount less than the first reference amount when the main tank held is exchanged.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: October 19, 2021
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Yuto Suzuki, Katsuaki Takeuchi, Mitsuru Tanemoto
  • Patent number: 11040538
    Abstract: An inkjet printer includes a maintenance solution supply mechanism. In response to switching of a three-way valve provided in an ink pipe, a maintenance solution is supplied from a maintenance tank to each head through a maintenance pipe. The maintenance tank is a common tank. This suppresses size increase of the printer compared to provision of an individual maintenance tank for each head. The maintenance pipe is connected to the ink pipe at a position downstream of an intermediary tank. This eliminates the need of replacement of ink in the intermediary tank by the maintenance solution during supply of the maintenance solution. This allows reduction in the consumptions of the ink and the maintenance solution.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: June 22, 2021
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Yuto Suzuki, Katsuaki Takeuchi, Mitsuru Tanemoto
  • Patent number: 10906336
    Abstract: An upstream drive roller transports an elongate medium. An upstream tension sensor detects tension of the medium. A downstream drive roller transports the medium. A downstream tension sensor detects tension of the medium in a position between the upstream and downstream drive rollers. A control unit controls transportation of the medium by operating the upstream drive roller based on a first difference which is a difference between a first detection value and a target value, operating the downstream drive roller based on a second difference which is a difference between a second detection value and a target value, and when a specific condition is satisfied, further operating the downstream driver roller with an adjustment value, which is based on the first difference, added to the second difference.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: February 2, 2021
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Shoji Kakimoto, Osamu Morizono, Katsuaki Takeuchi
  • Publication number: 20200262208
    Abstract: A printing apparatus comprises a main tank, an intermediate tank, and a control unit controlling an amount of the ink stored in the intermediate tank by a normal replenishing operation for increasing an ink remaining amount to a normal amount more than a first reference amount by feeding the ink from the main tank to the intermediate tank if the ink remaining amount falls below the first reference amount. The control unit controls the amount of the ink stored in the intermediate tank by an extraordinary replenishing operation for increasing the ink remaining amount to a second reference amount by feeding the ink from the main tank to the intermediate tank if the ink remaining amount falls below the second reference amount less than the first reference amount when the main tank held is exchanged.
    Type: Application
    Filed: January 17, 2020
    Publication date: August 20, 2020
    Inventors: Yuto Suzuki, Katsuaki Takeuchi, Mitsuru Tanemoto
  • Publication number: 20200094574
    Abstract: An inkjet printer includes a maintenance solution supply mechanism. In response to switching of a three-way valve provided in an ink pipe, a maintenance solution is supplied from a maintenance tank to each head through a maintenance pipe. The maintenance tank is a common tank. This suppresses size increase of the printer compared to provision of an individual maintenance tank for each head. The maintenance pipe is connected to the ink pipe at a position downstream of an intermediary tank. This eliminates the need of replacement of ink in the intermediary tank by the maintenance solution during supply of the maintenance solution. This allows reduction in the consumptions of the ink and the maintenance solution.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 26, 2020
    Inventors: Yuto Suzuki, Katsuaki Takeuchi, Mitsuru Tanemoto
  • Publication number: 20170165986
    Abstract: An upstream drive roller transports an elongate medium. An upstream tension sensor detects tension of the medium. A downstream drive roller transports the medium. A downstream tension sensor detects tension of the medium in a position between the upstream and downstream drive rollers. A control unit controls transportation of the medium by operating the upstream drive roller based on a first difference which is a difference between a first detection value and a target value, operating the downstream drive roller based on a second difference which is a difference between a second detection value and a target value, and when a specific condition is satisfied, further operating the downstream driver roller with an adjustment value, which is based on the first difference, added to the second difference.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 15, 2017
    Inventors: Shoji KAKIMOTO, Osamu Morizono, Katsuaki Takeuchi
  • Patent number: 9079406
    Abstract: A controller in the example of this invention operates to perform flushing by ejecting three types in size of ink droplets, i.e., smaller, middle and larger ink droplets, from each of nozzles. Then the controller operates an ink-droplet detector to perform an ejection test to detect ejection conditions. Thereafter, the controller operates an ink supply section to perform cleaning in accordance with results of the test. A combination in size of unejected ink droplets indicates a defective condition of the nozzle. Consequently, varying the degree of cleaning the nozzles in accordance with the size of the unejected ink droplets may achieve cleaning in a shorter time of period. As a result, time for cleaning the nozzle can be suppressed. This leads to a decreased proportion of maintenance to a starting time in an apparatus and increased availability of the apparatus.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 14, 2015
    Assignee: Screen Holdings Co., Ltd.
    Inventors: Takaharu Yamamoto, Ryoichi Naoe, Katsuaki Takeuchi
  • Patent number: 9044940
    Abstract: An inkjet printing apparatus for printing images on printing paper by discharging ink while moving inkjet heads and the printing paper relative to each other. The apparatus includes an inkjet head holder for holding the inkjet heads, a controller for operating a plurality of motors to move the inkjet head holder vertically at least between a printing position and an origin position, and a monitoring unit for monitoring, during a vertical movement caused by the controller, synchronous rotations of the plurality of motors, and corresponding directions of rotation of the plurality of motors.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: June 2, 2015
    Assignees: SCREEN HOLDINGS CO., LTD., RICOH COMPANY, LTD.
    Inventors: Ryouichi Naoe, Mitsuru Tanemoto, Katsuaki Takeuchi
  • Patent number: 8870332
    Abstract: A transport device includes a plurality of transporting sections to transport a printing medium; a divided accelerating interval setting section to set a transportation speed in a divided accelerating interval corresponding to a time generated by dividing a time where the transportation speed of the printing medium changes from 0 to a given value in accordance with an acceleration rate; a divided decelerating interval setting section to set a transportation speed in a divided decelerating interval corresponding to a time generated by dividing a time where the transportation speed of the printing medium changes from the given value to 0 in accordance with an decelerating rate; including a basic shaft transporting section configured to be driven at the transportation speed set for every divided accelerating interval or for every divided decelerating interval for transporting the printing medium; and a controller for controlling the foregoing sections.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: October 28, 2014
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventors: Katsuaki Takeuchi, Shoji Kakimoto
  • Publication number: 20140232779
    Abstract: The transport device includes a plurality of transporting sections to transport a printing medium; a divided accelerating interval setting section to set a transportation speed in a divided accelerating interval corresponding to a time generated by dividing a time where the transportation speed of the printing medium changes from 0 to a given value in accordance with an acceleration rate; a divided decelerating interval setting section to set a transportation speed in a divided decelerating interval corresponding to a time generated by dividing a time where the transportation speed of the printing medium changes from the given value to 0 in accordance with an decelerating rate; including a basic shaft transporting section configured to be driven at the transportation speed set for every divided accelerating interval or for every divided decelerating interval for transporting the printing medium; and a controller for controlling the foregoing sections.
    Type: Application
    Filed: December 20, 2013
    Publication date: August 21, 2014
    Applicant: DAINIPPON SCREEN MFG. CO., LTD.
    Inventors: Katsuaki TAKEUCHI, Shoji Kakimoto
  • Publication number: 20140009534
    Abstract: A controller in the example of this invention operates to perform flushing by ejecting three types in size of ink droplets, i.e., smaller, middle and larger ink droplets, from each of nozzles. Then the controller operates an ink-droplet detector to perform an ejection test to detect ejection conditions. Thereafter, the controller operates an ink supply section to perform cleaning in accordance with results of the test. A combination in size of unejected ink droplets indicates a defective condition of the nozzle. Consequently, varying the degree of cleaning the nozzles in accordance with the size of the unejected ink droplets may achieve cleaning in a shorter time of period. As a result, time for cleaning the nozzle can be suppressed. This leads to a decreased proportion of maintenance to a starting time in an apparatus and increased availability of the apparatus.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 9, 2014
    Applicant: Dainippon Screen Mfg. Co., Ltd.
    Inventors: Takaharu Yamamoto, Ryoichi Naoe, Katsuaki Takeuchi