Patents by Inventor Shintaro Tasaki

Shintaro Tasaki 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).

  • ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
    Publication number: 20240147846
    Abstract: An organic electroluminescent element including, an anode, a cathode, and an organic layer disposed between the anode and the cathode and including a light emitting zone. The organic layer includes a first layer containing a first compound and a second layer containing a second compound. The first layer and the second layer are different layers.
    Type: Application
    Filed: December 8, 2021
    Publication date: May 2, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Shota TANAKA, Shintaro BAN, Satomi TASAKI, Hiroaki ITOI, Tasuku HAKETA, Yuki NAKANO
  • Mixed bed ion exchange resin system and method of preparation
    Patent number: 6060526
    Abstract: A method for preparing non-agglomerating mixed bed ion exchange resin systems without affecting the ion exchange kinetics of the anion exchange resin component of the mixed bed system is disclosed. Pretreatment of the anion exchange resin component with a sulfonated poly(vinylaromatic) polyelectrolyte is particularly effective in providing non-agglomerated mixed bed systems without affecting ion exchange kinetics. Treatment levels of 10 to 800 milligrams per liter of anion exchange resin with sulfonated poly(vinylaromatic) polyelectrolyte having number average molecular weight from 5,000 to 1,000,000 are particularly preferred.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: May 9, 2000
    Assignee: Rohm and Haas Company
    Inventor: Shintaro Tasaki
  • Mixed bed exchange resin system and method of preparation
    Patent number: 5902833
    Abstract: A method for preparing non-agglomerating mixed bed ion exchange resin systems without affecting the ion exchange kinetics of the anion exchange resin component of the mixed bed system is disclosed. Pretreatment of the anion exchange resin component with a sulfonated poly(vinylaromatic) polyelectrolyte is particularly effective in providing non-agglomerated mixed bed systems without affecting ion exchange kinetics. Treatment levels of 10 to 800 milligrams per liter of anion exchange resin with sulfonated poly(vinylaromatic) polyelectrolyte having number average molecular weight from 5,000 to 1,000,000 are particularly preferred.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: May 11, 1999
    Assignee: Rohm and Haas Company
    Inventor: Shintaro Tasaki