Patents by Inventor Rieko SEIKE

Rieko SEIKE 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: 11926155
    Abstract: An inkjet recording device includes an inkjet discharge head including a nozzle through which ink is discharged, a pressure chamber that communicates to the nozzle, and a pressure generator that generates a pressure change in ink in the pressure chamber according to application of a drive signal to cause ink to be discharged from the nozzle; a driver that is disposed outside the ink discharge head and that is provided with a drive circuit that outputs the drive signal; and a wire that electrically connects the driver with the ink discharge head and through which the drive signal output from the drive circuit and applied to the pressure generator. The driver includes a resistance element provided in a transmission path of the drive signal between the drive circuit and the wire. A magnitude of a resistance value of the resistance element corresponds to a length of the wire.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: March 12, 2024
    Assignee: KONICA MINOLTA, INC.
    Inventors: Rieko Seike, Takakazu Kuki
  • Publication number: 20220250380
    Abstract: An inkjet recording device includes an inkjet discharge head including a nozzle through which ink is discharged, a pressure chamber that communicates to the nozzle, and a pressure generator that generates a pressure change in ink in the pressure chamber according to application of a drive signal to cause ink to be discharged from the nozzle; a driver that is disposed outside the ink discharge head and that is provided with a drive circuit that outputs the drive signal; and a wire that electrically connects the driver with the ink discharge head and through which the drive signal output from the drive circuit and applied to the pressure generator. The driver includes a resistance element provided in a transmission path of the drive signal between the drive circuit and the wire. A magnitude of a resistance value of the resistance element corresponds to a length of the wire.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 11, 2022
    Inventors: Rieko SEIKE, Takakazu KUKI