Patents by Inventor Kei Yoshida

Kei Yoshida 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).

  • Patent number: 11969793
    Abstract: An additive manufacturing device comprises a lower nozzle that blows out inert gas into a chamber in a horizontal direction through a lower opening portion formed in a lower part of a first side wall constituting the chamber, and an upper nozzle that blows out the inert gas into the chamber through an upper opening portion formed in an upper part of the first side wall, wherein the upper nozzle includes a window nozzle that blows out the inert gas along an inner surface of a window portion of a top board constituting the chamber, and an oblique nozzle that blows out the inert gas obliquely downward from the upper portion of the first side wall.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: April 30, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kei Higashi, Kazuhiro Yoshida, Chikara Kurimura, Takanao Komaki
  • Patent number: 11968894
    Abstract: An organic electroluminescence device includes an anode, an emitting layer and a cathode, in which the emitting layer includes a first compound, a second compound and a third compound. The first compound is a compound represented by a formula (1) below. The second compound has a larger singlet energy than a singlet energy of the first compound. The third compound is a fluorescent compound.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: April 23, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Toshinari Ogiwara, Kei Yoshida, Satomi Tasaki
  • Publication number: 20240107876
    Abstract: An organic electroluminescence device including a cathode, an anode, an emitting layer arranged between the cathode and the anode, and an electron-transporting region arranged between the emitting layer and the cathode, wherein the electron-transporting region includes one or more compounds selected from the group consisting of compounds represented by the following formulas (1) to (4) and a rare earth element, and the electron-transporting region substantially does not include an alkali metal, a compound containing an alkali metal, a metal belonging to Group 13 of the Periodic Table of the Elements, and a compound having a metal belonging to Group 13 of the Periodic Table of the Elements.
    Type: Application
    Filed: December 6, 2021
    Publication date: March 28, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Hiroaki TOYOSHIMA, Masatoshi SAITO, Kei YOSHIDA, Masato MITANI, Sayaka MIZUTANI
  • Publication number: 20240074311
    Abstract: A compound is represented by a formula (1) below. In the formula (1): R1 to R9, R101 to R108, and R111 to R118 are each independently a hydrogen atom, a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms, or the like; Ar12 is a substituted or unsubstituted aryl group having 10 to 30 ring carbon atoms or the like; p is 0 or 1; q is 0 or 1; and p+q is 1 or 2.
    Type: Application
    Filed: June 13, 2023
    Publication date: February 29, 2024
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Shintaro BAN, Yu KUDO, Kei YOSHIDA, Sigma HASHIMOTO, Yoshinao SHIRASAKI
  • Patent number: 11903308
    Abstract: A compound of the following formula (1) and others. R1 to R24, R31 to R35, A1 and A2 are as defined in the specification, n is an integer of 0 to 3, when A1 is an (n+1)-valent residue of benzene, n is an integer of 1 or more, and when n is 0, (A2)0 is a hydrogen atom.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: February 13, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Kei Yoshida, Masatoshi Saito, Ryoji Maeda, Masato Nakamura, Tetsuya Masuda
  • Publication number: 20230373947
    Abstract: A compound represented by Formula (1): The compound can be used as insecticides.
    Type: Application
    Filed: August 2, 2023
    Publication date: November 23, 2023
    Inventors: Kei Yoshida, Takeo Wakita, Hiroyuki Katsuta, Akiyoshi Kai, Yutaka Chiba, Kiyoshi Takahashi, Hiroko Kato, Nobuyuki Kawahara, Michikazu Nomura, Hidenori Daido, Junji Maki, Shinichi Banba
  • Publication number: 20230322673
    Abstract: A compound is represented by a formula (1) below, in which k is an integer of 0 or more, m is an integer of 1 or more, n is an integer of 2 or more. L is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 30 ring carbon atoms, CN is a cyano group, and D1 and D2 are each independently represented by one of a formula (2), a formula (3) and formula (3x) below, D1 and D2 being optionally mutually the same or different.
    Type: Application
    Filed: June 13, 2023
    Publication date: October 12, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Satomi TASAKI, Masahiro KAWAMURA, Toshinari OGIWARA, Hitoshi KUMA, Kei YOSHIDA, Keiji OKINAKA
  • Patent number: 11760742
    Abstract: A compound represented by Formula (1): The compound can be used as insecticides.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: September 19, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kei Yoshida, Takeo Wakita, Hiroyuki Katsuta, Akiyoshi Kai, Yutaka Chiba, Kiyoshi Takahashi, Hiroko Kato, Nobuyuki Kawahara, Michikazu Nomura, Hidenori Daido, Junji Maki, Shinichi Banba
  • Patent number: 11765972
    Abstract: A compound represented by the following formula (1), wherein X1 is O or S, and two or more of Y1, Y2 and Y3 are N, provided that the case where one or both of —Ar1-Ar2 and —Ar3-Ar4 is a p-terphenyl-3-yl group is excluded.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: September 19, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yoshinao Shirasaki, Tetsuya Masuda, Takushi Shiomi, Masatoshi Saito, Kei Yoshida, Masato Nakamura
  • Patent number: 11739061
    Abstract: A compound is represented by a formula (1) below, in which k is an integer of 0 or more, m is an integer of 1 or more, n is an integer of 2 or more. L is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 30 ring carbon atoms, CN is a cyano group, and D1 and D2 are each independently represented by one of a formula (2), a formula (3) and formula (3x) below, D1 and D2 being optionally mutually the same or different.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: August 29, 2023
    Assignee: IDEMITSU KOSAN CO., LTD
    Inventors: Satomi Tasaki, Masahiro Kawamura, Toshinari Ogiwara, Hitoshi Kuma, Kei Yoshida, Keiji Okinaka
  • Publication number: 20230217813
    Abstract: A compound represented by the following formula (1) (L1 is a single bond or an unsubstituted arylene group having 6 to 50 ring carbon atoms, and Ar1 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms).
    Type: Application
    Filed: May 7, 2021
    Publication date: July 6, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Masatoshi SAITO, Kei YOSHIDA, Tetsuya MASUDA
  • Publication number: 20230200226
    Abstract: A compound represented by the following formula (1), wherein L1 is a single bond or an arylene group, and Ar1 and Ar2 are an unsubstituted aryl group.
    Type: Application
    Filed: May 7, 2021
    Publication date: June 22, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Masatoshi SAITO, Kei YOSHIDA
  • Publication number: 20230167072
    Abstract: A compound that further improves the capability of an organic electroluminescent device, an organic electroluminescent device having a further improved device capability, and an electronic device including the organic electroluminescent device are provided. A compound represented by the following formula (1): wherein the symbols in the formula (1) are defined in the description, an organic electroluminescent device including the compound, and an electronic device including the organic electroluminescent device.
    Type: Application
    Filed: October 27, 2022
    Publication date: June 1, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kei YOSHIDA, Masatoshi SAITO, Masato NAKAMURA, Sayaka MIZUTANI, Masato MITANI, Yoshinori AOYAMA, Ryota TAKAHASHI
  • Publication number: 20230159554
    Abstract: A compound having anticancer activity, or a pharmaceutically acceptable salt thereof is provided. Used is a compound represented by the following formula (I) or a pharmaceutically acceptable salt thereof: (wherein, L1 and L2 are the same or different and each represents a group represented by one formula selected from the group consisting of formulas (A) to (F), and S represents a group represented by one formula selected from the group consisting of formulas (S1) to (S18)).
    Type: Application
    Filed: January 25, 2023
    Publication date: May 25, 2023
    Applicant: KYOWA KIRIN CO., LTD.
    Inventors: Kenji UCHIDA, Ryohei KAWAI, Keisuke YAMAMOTO, Toshimi KANAI, Hideo IKOTA, Takashi IMAEDA, Kei YOSHIDA
  • Publication number: 20230126981
    Abstract: An organic electroluminescence device includes: an anode; an emitting layer; and a cathode, the emitting layer containing a first material, a second material and a third material, the first material being a fluorescent material, the second material being a delayed fluorescent material, the third material having a singlet energy larger than a singlet energy of the second material.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 27, 2023
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Toshinari OGIWARA, Kei YOSHIDA, Ryohei HASHIMOTO, Yumiko MIZUKI
  • Publication number: 20230127629
    Abstract: An organic electroluminescent device includes a cathode, an anode, and organic layers intervening between the cathode and the anode, where the organic layers include a light emitting layer and an electron transporting layer, where the electron transporting layer contains a compound A represented by formula (1), and the light emitting layer contains a host material B represented by formula (10):
    Type: Application
    Filed: February 4, 2021
    Publication date: April 27, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kei YOSHIDA, Masatoshi SAITO, Masato NAKAMURA, Tetsuya MASUDA
  • Publication number: 20230124891
    Abstract: A compound represented by the following formula (1) and having a molecular weight of 650 or more: wherein Cz, n, Y1, Y2, Ar1, Ar2, L1, L2, L3, L4, R1, R2, R3, R4, R5, and R6 are as defined in the description, and an organic electroluminescent device which contains the compound.
    Type: Application
    Filed: February 4, 2021
    Publication date: April 20, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kei YOSHIDA, Masatoshi SAITO, Masato NAKAMURA, Tetsuya MASUDA
  • Publication number: 20230123170
    Abstract: A compound represented by formula (I), a material for an organic electroluminescence device having the specific compound, an organic electroluminescence device of the specific compound, an electronic equipment having the organic electroluminescence device and the use of the compound of formula (I) in an organic electroluminescence device, where in formula (I), R1 and R1? each independently represent a C1 to C6 alkyl group; R2 represents a substituted or unsubstituted C6 to C24 aryl group, a substituted or unsubstituted heteroaryl group having 3 to 9 carbon atoms, or CN; L represents a substituted or unsubstituted C6 to C40 arylene group; m is 0 to 5; and n is 1, 2 or 3:
    Type: Application
    Filed: February 5, 2021
    Publication date: April 20, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Heinz WOLLEB, Michelle GROARKE, Fabrice ECKES, Masatoshi SAITO, Kei YOSHIDA, Natalia CHEBOTAREVA
  • Patent number: 11629152
    Abstract: A compound having anticancer activity, or a pharmaceutically acceptable salt thereof is provided. Used is a compound represented by the following formula (I) or a pharmaceutically acceptable salt thereof: (wherein, L1 and L2 are the same or different and each represents a group represented by one formula selected from the group consisting of formulas (A) to (F), and S represents a group represented by one formula selected from the group consisting of formulas (S1) to (S18)).
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: April 18, 2023
    Assignee: KYOWA KIRIN CO., LTD.
    Inventors: Kenji Uchida, Ryohei Kawai, Keisuke Yamamoto, Toshimi Kanai, Hideo Ikota, Takashi Imaeda, Kei Yoshida
  • Publication number: 20230108999
    Abstract: A compound represented by formula (1): wherein R1 to R10, R11 to R14, L, and Ar are as defined in the description, a material for organic electroluminescence device containing the compound, an organic electroluminescence device containing the compound, and an electronic device containing the organic electroluminescence device are provided.
    Type: Application
    Filed: December 8, 2020
    Publication date: April 6, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kei YOSHIDA, Masatoshi SAITO, Tomokatsu KUSHIDA