Patents by Inventor Yuki OHSHIMA

Yuki OHSHIMA 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: 20250063935
    Abstract: A composition including at least one high-molecular weight charge transport compound having a weight average molecular weight of 10,000 or more and having a crosslinking group; at least one low-molecular weight charge transport compound having a molecular weight of 5,000 or less and having a crosslinking group; and at least one aromatic organic solvent, wherein the low-molecular weight charge transport compound is a compound represented by formula (71) below, and the like. A method for manufacturing an organic electroluminescent element including the step of applying this composition to regions separated by a partition wall layer by printing using an inkjet method, the step of vacuum-drying the printed composition in a vacuum chamber to volatilize the organic solvent, and the step of baking the vacuum-dried composition at high temperature.
    Type: Application
    Filed: May 2, 2024
    Publication date: February 20, 2025
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yuki OHSHIMA, Yoshimasa BANDO, Manabu SAKURAI, Koji ADACHI, Keiko SAITO
  • Publication number: 20250048826
    Abstract: The present invention relates to a material for an emission layer of an organic electroluminescent element, including at least a luminescent material and at least two kinds of compounds respectively selected from at least any two groups among three groups represented by the following (group A), (group B), and (group C). (Group A): a group consisting of a compound represented by the following formula (1-A) and a compound represented by the following formula (1-B); (group B): a compound represented by the following formula (2); and (group C): a group consisting of a compound represented by the following formula (3), a compound represented by the following formula (1-1), and a compound represented by the following formula (1-2) (details of each formula included in (group A) to (group C) are as described in the description).
    Type: Application
    Filed: September 24, 2024
    Publication date: February 6, 2025
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kazuki OKABE, Yuki OHSHIMA, Tsukasa HASEGAWA, Yanjun LI
  • Publication number: 20240400118
    Abstract: A rail vehicle has a return flow path structure formed by a lower tube portion, an upper tube portion, a seat, and an opening or a notch of a seat base. When air flows from the inside of a vehicle cabin to an exhaust port connected to an exhaust air flow path under a floor via the return flow path structure, a direction of a flow passing between an outer periphery of the lower tube portion and an inner periphery of the upper tube portion is opposite to a direction of a flow passing through an inner side of the lower tube portion.
    Type: Application
    Filed: May 29, 2024
    Publication date: December 5, 2024
    Inventors: Daisuke MUTO, Yuki OHSHIMA, Narihiro TOMITA, Takashi YOSHIZAWA, Akitoshi MATSUI, Koki NANKAI, Shintaro YABE, Yuki ICHIKI
  • Publication number: 20240407250
    Abstract: An object of the present invention is to provide a composition for an organic electroluminescent element, which is used for forming an emission layer in an organic electroluminescent element by wet-process film formation, and which has favorable stability of liquid physical properties, in particular, favorable surface tension stability of ink. The present invention relates to a composition for an organic electroluminescent element including a functional material, a specific compound, alkylated naphthalene or diphenyl alkane as a first solvent, and at least one of an aromatic ether and an aromatic ester as a second solvent.
    Type: Application
    Filed: August 8, 2024
    Publication date: December 5, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Manabu SAKURAI, Yuki OHSHIMA, Koichiro IIDA