Patents by Inventor Tooru Mine

Tooru Mine 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: 11975540
    Abstract: A head chip prevented from deteriorating in printing quality is provided. The head chip is provided with an intermediate plate which has a plurality of columns of communication hole groups for each channel column, the communication hole group having communication holes individually communicated with ejection channels of an actuator plate and arranged in a line in an X direction. The communication holes adjacent to each other in the X direction are arranged so as to be shifted in a Y direction from each other. The intermediate plate is provided with a non-penetrating groove closed by a nozzle plate, and a penetrating hole communicated with the non-penetrating groove, and communicated with an outside of the head chip through a non-ejection channel. A part of the non-penetrating groove is located in an inter-communication hole region.
    Type: Grant
    Filed: October 12, 2022
    Date of Patent: May 7, 2024
    Assignee: SII PRINTEK INC.
    Inventor: Tooru Mine
  • Publication number: 20240083168
    Abstract: There are provided a head chip, a liquid jet head, a liquid jet recording device, and a method of manufacturing a head chip each capable of ensuring an inter-electrode distance of each of channels while achieving narrowing of a pitch of the channels. In the head chip according to an aspect of the present disclosure, an electrical conducting material removal area in which laser irradiation scars are formed throughout an entire area in an X direction of a portion located between a lower end opening of an ejection channel and a lower end opening of a non-ejection channel is disposed in a portion located between the lower end opening of the ejection channel and the lower end opening of the non-ejection channel in a lower surface of an actuator plate.
    Type: Application
    Filed: September 7, 2023
    Publication date: March 14, 2024
    Inventor: Tooru MINE
  • Publication number: 20230117809
    Abstract: A head chip prevented from deteriorating in printing quality is provided. The head chip is provided with an intermediate plate which has a plurality of columns of communication hole groups for each channel column, the communication hole group having communication holes individually communicated with ejection channels of an actuator plate and arranged in a line in an X direction. The communication holes adjacent to each other in the X direction are arranged so as to be shifted in a Y direction from each other. The intermediate plate is provided with a non-penetrating groove closed by a nozzle plate, and a penetrating hole communicated with the non-penetrating groove, and communicated with an outside of the head chip through a non-ejection channel. A part of the non-penetrating groove is located in an inter-communication hole region.
    Type: Application
    Filed: October 12, 2022
    Publication date: April 20, 2023
    Inventor: Tooru MINE
  • Publication number: 20230121264
    Abstract: There are provided a head chip, a liquid jet head, a liquid jet recording device, and a method of manufacturing a head chip each capable of homogenously forming protective films on inner surfaces of channels while dealing with miniaturization of the channels and a decrease in pitch of the channels.
    Type: Application
    Filed: October 11, 2022
    Publication date: April 20, 2023
    Inventors: Tooru MINE, Yuki Yamamura
  • Publication number: 20230120427
    Abstract: A head chip, a liquid jet head, a liquid jet recording device, and a method of manufacturing a head chip each capable of ensuring the tolerance of the displacement between nozzle holes and communication holes while ensuring the bonding area between an actuator plate and an intermediate plate are provided. The head chip according to an aspect of the present disclosure includes an actuator plate, a nozzle plate disposed so as to be opposed to the actuator plate, and an intermediate plate disposed between the actuator plate and the nozzle plate. The communication holes each include a groove part having a lower-side opening part opening toward the nozzle hole, and a penetrating part having an upper-side opening part opening toward an ejection channel.
    Type: Application
    Filed: October 13, 2022
    Publication date: April 20, 2023
    Inventors: Tooru MINE, Suguru MUNAKATA
  • Patent number: 11020968
    Abstract: There are provided a head chip and a method of manufacturing the same, a liquid jet head, and a liquid jet recording device each capable of suppressing a stray capacitance to improve the image quality. The head chip according to an embodiment of the present disclosure is a head chip having an actuator plate adapted to apply pressure to liquid to jet the liquid.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: June 1, 2021
    Assignee: SII PRINTEK INC.
    Inventors: Tomoki Ai, Yuki Yamamura, Tooru Mine
  • Publication number: 20200147964
    Abstract: There are provided a head chip and a method of manufacturing the same, a liquid jet head, and a liquid jet recording device each capable of suppressing a stray capacitance to improve the image quality. The head chip according to an embodiment of the present disclosure is a head chip having an actuator plate adapted to apply pressure to liquid to jet the liquid.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 14, 2020
    Inventors: Tomoki Ai, Yuki Yamamura, Tooru Mine