Patents by Inventor Mari Yajima

Mari Yajima 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: 20230420749
    Abstract: Provided is a secondary battery electrode additive with which an active material can be coated without heat treatment that is performed at a high temperature for a long period of time, an alkaline component can be neutralized, and the decomposition of an electrolytic solution can be suppressed. For example, provided is a secondary battery electrode additive comprising a boronic acid derivative represented by formula (5). (In the formula, R1-R5 each independently represent a hydrogen atom, an alkyl group, an ester group, a glycol chain, an alkoxy group, or a hydroxy group, and R6 represents a hydrogen atom, a methyl group, or an ethyl group.
    Type: Application
    Filed: November 16, 2021
    Publication date: December 28, 2023
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Tatsuya HATANAKA, Yasushi SAKAIDA, Takahiro KASEYAMA, Mari YAJIMA
  • Patent number: 11670777
    Abstract: The present invention provides a thin film forming composition for energy storage device electrodes, said composition containing a conductive carbon material, a dispersant, a solvent and a polymer that has a partial structure represented by formula (P1) in a side chain. (In the formula, L represents —O— or —NH—; R represents an alkylene group having from 1 to 20 carbon atoms; T represents a substituted or unsubstituted amino group, a nitrogen-containing heteroaryl group having from 2 to 20 carbon atoms or a nitrogen-containing aliphatic heterocyclic group having from 2 to 20 carbon atoms; and * represents a bonding hand.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: June 6, 2023
    Assignee: NISSAN CHEMICAL CORPORATION
    Inventors: Mari Yajima, Takuma Nagahama, Takahiro Kaseyama
  • Publication number: 20230100064
    Abstract: This invention provides a carbon nanotube dispersion that contains carbon nanotubes, a dispersant, a solvent, and a polymer which has a partial structure represented by formula (P1) on a side chain. (In the formula, L represents —O— or —NH—, R represents an alkylene group having 1-20 carbon atoms, T represents a substituted or unsubstituted amino group, a nitrogen-containing heteroaryl group having 2-20 carbon atoms, or a nitrogen-containing aliphatic heterocyclic group having 2-20 carbon atoms, and * represents a bond.
    Type: Application
    Filed: February 24, 2021
    Publication date: March 30, 2023
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Takuma NAGAHAMA, Mari YAJIMA, Yuta KEMMIZAKI
  • Publication number: 20230099896
    Abstract: The present invention provides a thin film forming composition for energy storage device electrodes, said composition containing a conductive carbon material, a dispersant, a solvent and a polymer that has a partial structure represented by formula (P1) in a side chain. (In the formula, L represents —O— or —NH—; R represents an alkylene group having from 1 to 20 carbon atoms; T represents a substituted or unsubstituted amino group, a nitrogen-containing heteroaryl group having from 2 to 20 carbon atoms or a nitrogen-containing aliphatic heterocyclic group having from 2 to 20 carbon atoms; and * represents a bonding hand.
    Type: Application
    Filed: February 24, 2021
    Publication date: March 30, 2023
    Applicant: Nissan Chemical Corporation
    Inventors: Mari YAJIMA, Takuma NAGAHAMA, Takahiro KASEYAMA
  • Publication number: 20210336271
    Abstract: Provided is a composition for forming a thin film for an energy storage device that contains a cationic polymer, and does not contain an electrically conductive carbon material.
    Type: Application
    Filed: August 19, 2019
    Publication date: October 28, 2021
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Mari YAJIMA, Tatsuya HATANAKA, Yasushi SAKAIDA
  • Publication number: 20020007296
    Abstract: The object of the present invention is to provide a technique for furnishing a total information service that can assist a user to achieve a dream. A computer system of the present invention reads out, from a data storage device, client specification information respectively specifying one client and other clients who belong to a genre registered by the one client in advance if client identification information is received from a terminal of the one client. Then, the computer system transmits to the terminal of the one client, display information wherein each of the read client specification information is positioned at a predetermined location. Thus, the client can easily ascertain that there are other participants who share the same dream, and from this, can acquire a sense of comradeship with other participants and a strengthened determination to achieve his or her object. Furthermore, this can provide motivation for communication with other participants.
    Type: Application
    Filed: December 27, 2000
    Publication date: January 17, 2002
    Inventors: Mari Yajima, Yasuhiro Hirano, Takeshi Tomomatsu, Chiaki Yamauchi, Yumi Kuroda, Hiroyuki Takigawa