Patents by Inventor Yoshihide NIISATO

Yoshihide NIISATO 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).

  • Liquid discharge head, head module, and liquid discharge apparatus
    Patent number: 11104132
    Abstract: A liquid discharge head includes a nozzle substrate and a cover member. The nozzle substrate includes a liquid discharge surface, a plurality of nozzles, and a continuous recess. The plurality of nozzles is arranged in a nozzle arrangement area on the liquid discharge surface and configured to discharge liquid from the liquid discharge surface. The continuous recess surrounds the nozzle arrangement area on the liquid discharge surface. The cover member is joined to the nozzle substrate with the nozzle arrangement area being exposed. The nozzle arrangement area has a liquid repellency with respect to the liquid. An inside of the recess is lyophilic to the liquid and is provided with an adhesive, and the nozzle substrate is joined to the cover member with the adhesive.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: August 31, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yohsuke Kobayashi, Kaname Morita, Kenshiroh Munetomo, Yoshihide Niisato
  • LIQUID DISCHARGE HEAD, HEAD MODULE, AND LIQUID DISCHARGE APPARATUS
    Publication number: 20200269575
    Abstract: A liquid discharge head includes a nozzle substrate and a cover member. The nozzle substrate includes a liquid discharge surface, a plurality of nozzles, and a continuous recess. The plurality of nozzles is arranged in a nozzle arrangement area on the liquid discharge surface and configured to discharge liquid from the liquid discharge surface. The continuous recess surrounds the nozzle arrangement area on the liquid discharge surface. The cover member is joined to the nozzle substrate with the nozzle arrangement area being exposed. The nozzle arrangement area has a liquid repellency with respect to the liquid. An inside of the recess is lyophilic to the liquid and is provided with an adhesive, and the nozzle substrate is joined to the cover member with the adhesive.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 27, 2020
    Inventors: Yohsuke KOBAYASHI, Kaname MORITA, Kenshiroh MUNETOMO, Yoshihide NIISATO
  • Metal member, liquid discharge head, liquid discharge apparatus, and method for manufacturing metal member
    Patent number: 10632753
    Abstract: A metal member includes an alloy containing platinum-group metal. An amount of the platinum-group metal in an outermost surface of the metal member is higher than the amount of the platinum-group metal in an interior of the metal member.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: April 28, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshihide Niisato, Kenshiroh Munetomo, Kaname Morita
  • METAL MEMBER, LIQUID DISCHARGE HEAD, LIQUID DISCHARGE APPARATUS, AND METHOD FOR MANUFACTURING METAL MEMBER
    Publication number: 20190193403
    Abstract: A metal member includes an alloy containing platinum-group metal. An amount of the platinum-group metal in an outermost surface of the metal member is higher than the amount of the platinum-group metal in an interior of the metal member.
    Type: Application
    Filed: September 25, 2018
    Publication date: June 27, 2019
    Inventors: Yoshihide NIISATO, Kenshiroh MUNETOMO, Kaname MORITA