Patents by Inventor Naoko Yanai

Naoko Yanai 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: 20230293734
    Abstract: The fluorine-containing compound includes: two nitroxide radical-containing groups represented by Formula (1) (R1, R2, R3, and R4 are each independently a C1-10 alkyl group unsubstituted or substituted with a substituent containing no fluorine atoms); and one to three —O—C(CF3)3 groups, in which the nitroxide radical-containing groups are bound to the —O—C(CF3)3 groups through a chain structure with 2 to 17 atoms.
    Type: Application
    Filed: March 9, 2023
    Publication date: September 21, 2023
    Applicant: TDK Corporation
    Inventor: Naoko YANAI
  • Patent number: 8569485
    Abstract: A phenyl-substituted 1,3,5-triazine compound represented by the general formula (1): wherein Ar1 and Ar2 independently represent substituted or unsubstituted phenyl, naphthyl or biphenylyl group; R1, R2 and R3 independently represent hydrogen atom or methyl group; X1 and X2 independently represent substituted or unsubstituted phenylene, naphthylene or pyridylene group; p and q independently represent an integer of 0 to 2; and Ar3 and Ar4 independently represent substituted or unsubstituted pyridyl or phenyl group. This compound is suitable for an organic electroluminescent device.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: October 29, 2013
    Assignees: Tosoh Corporation, Sagami Chemical Research Institute
    Inventors: Tetsu Yamakawa, Hidenori Aihara, Naoko Yanai, Tsuyoshi Tanaka, Yoko Honma, Masaru Sato
  • Publication number: 20120313090
    Abstract: A phenyl-substituted 1,3,5-triazine compound represented by the general formula (1): wherein Ar1 and Ar2 independently represent substituted or unsubstituted phenyl, naphthyl or biphenylyl group; R1, R2 and R3 independently represent hydrogen atom or methyl group; X1 and X2 independently represent substituted or unsubstituted phenylene, naphthylene or pyridylene group; p and q independently represent an integer of 0 to 2; and Ar3 and Ar4 independently represent substituted or unsubstituted pyridyl or phenyl group. This compound is suitable for an organic electroluminescent device.
    Type: Application
    Filed: August 21, 2012
    Publication date: December 13, 2012
    Applicants: SAGAMI CHEMICAL RESEARCH INSTITUTE, TOSOH CORPORATION
    Inventors: Tetsu YAMAKAWA, Hidenori AIHARA, Naoko YANAI, Tsuyoshi TANAKA, Yoko HONMA, Masaru SATO
  • Patent number: 8268997
    Abstract: A phenyl-substituted 1,3,5-triazine compound represented by the general formula (1); wherein Ar1 and Ar2 independently represent substituted or unsubstituted phenyl, naphthyl or biphenylyl group; R1, R2 and R3 independently represent hydrogen atom or methyl group; X1 and X2 independently represent substituted or unsubstituted phenylene, naphthylene or pyridylene group; p and q independently represent an integer of 0 to 2; and Ar3 and Ar4 independently represent substituted or unsubstituted pyridyl or phenyl group. This compound is suitable for an organic electroluminescent device.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: September 18, 2012
    Assignees: Tosoh Corporation, Sagami Chemical Research Institute
    Inventors: Tetsu Yamakawa, Hidenori Aihara, Naoko Yanai, Tsuyoshi Tanaka, Yoko Honma, Masaru Sato
  • Patent number: 7994316
    Abstract: Since the conventional electron transporters have low thermal stability, the organic electroluminescent devices using them are not sufficient in terms of the compatibility of their luminance and luminous efficiency with device lifetime. A 1,3,5-triazine derivative of formula (1) is obtained by a metal catalyst-aided coupling reaction of a compound of formula (2) with a compound of formula (3), and this is used as a composing component of an organic electroluminescent device. [In the formulae, Ar1 and Ar2 represent phenyl group or the like, R1 and R2 represent hydrogen atom or the like, R3 represents methyl or the like, m is an integer of 0 to 2, X represents 2,4-pyridylene or the like, p is 1 or 2, a and b are 1 or 2, a+b is 3, q is 0 or an integer of p or less, M represents —MgR4 group or the like, R4 represents chlorine atom or the like, r is p-q, and Y represents a leaving group.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: August 9, 2011
    Assignees: Tosoh Corporation, Sagami Chemical Research Center
    Inventors: Tetsu Yamakawa, Hidenori Aihara, Naoko Yanai, Tsuyoshi Tanaka, Masaru Sato
  • Publication number: 20100249406
    Abstract: A phenyl-substituted 1,3,5-triazine compound represented by the general formula (1); wherein Ar1 and Ar2 independently represent substituted or unsubstituted phenyl, naphthyl or biphenylyl group; R1, R2 and R3 independently represent hydrogen atom or methyl group; X1 and X2 independently represent substituted or unsubstituted phenylene, naphthylene or pyridylene group; p and q independently represent an integer of 0 to 2; and Ar3 and Ar4 independently represent substituted or unsubstituted pyridyl or phenyl group. This compound is suitable for an organic electroluminescent device.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 30, 2010
    Applicants: TOSOH CORPORATION, SAGAMI CHEMICAL RESEARCH CENTER
    Inventors: Tetsu Yamakawa, Hidenori Aihara, Naoko Yanai, Tsuyoshi Tanaka, Yoko Honma, Masaru Sato
  • Publication number: 20090281311
    Abstract: Since the conventional electron transporters have low thermal stability, the organic electroluminescent devices using them are not sufficient in terms of the compatibility of their luminance and luminous efficiency with device lifetime. A 1,3,5-triazine derivative of formula (1) is obtained by a metal catalyst-aided coupling reaction of a compound of formula (2) with a compound of formula (3), and this is used as a composing component of an organic electroluminescent device. [In the formulae, Ar1 and Ar2 represent phenyl group or the like, R1 and R2 represent hydrogen atom or the like, R3 represents methyl or the like, m is an integer of 0 to 2, X represents 2,4-pyridylene or the like, p is 1 or 2, a and b are 1 or 2, a+b is 3, q is 0 or an integer of p or less, M represents —MgR4 group or the like, R4 represents chlorine atom or the like, r is p-q, and Y represents a leaving group.
    Type: Application
    Filed: August 23, 2006
    Publication date: November 12, 2009
    Applicants: TOSOH CORPORATION, SAGAMI CHEMICAL RESEARCH CENTER
    Inventors: Tetsu Yamakawa, Hidenori Aihara, Naoko Yanai, Tsuyoshi Tanaka, Masaru Sato