Patents by Inventor Kenichi Ishitsuka

Kenichi Ishitsuka 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: 11737345
    Abstract: Provided are: an organic electronic material which can be easily multilayered and that can be used in substrates, such as resin, that cannot be processed at high temperatures; an ink composition containing the same; an organic thin film formed using said organic electronic material or said ink composition; and an organic electronic element and an organic EL element that are formed using said organic thin film and that have a superior luminous efficacy and emission lifespan than conventional elements. Specifically, provided are: an organic electronic material that is characterized by containing an oligomer or a polymer having a structure that branches into three or more directions and has at least one polymerizable substituent; an ink composition containing said organic electronic material; and an organic thin film prepared using the aforementioned organic electronic material. Further, provided are an organic electronic element and an organic electroluminescent element containing said organic thin film.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: August 22, 2023
    Assignee: RESONAC CORPORATION
    Inventors: Shigeaki Funyuu, Kenichi Ishitsuka, Yousuke Hoshi
  • Publication number: 20220251298
    Abstract: An embodiment of the present invention relates to an organic electronics material which includes a charge-transporting polymer comprising a structural unit represented by formula (1), at least one structural unit selected from the group consisting of structural units represented by formula (2-1) and structural units represented by formula (2-2), a structural unit represented by formula (3), and at least one structural unit selected from the group consisting of structural units represented by formula (4-1) and structural units represented by formula (4-2).
    Type: Application
    Filed: April 26, 2019
    Publication date: August 11, 2022
    Applicant: Showa Denko Materials Co., Ltd.
    Inventors: Kazuyuki KAMO, Iori FUKUSHIMA, Kenichi ISHITSUKA, Takanori MIYA
  • Publication number: 20220216415
    Abstract: An embodiment of the present invention pertains to an organic electronics material containing a charge-transporting polymer which includes: a structural unit represented by formula (1); at least one structural unit selected from the group consisting of a structural unit represented by formula (2-1) and a structural unit represented by formula (2-2); and a structural unit which is represented by formula (3) an of which an amount is 85-100 mol % with respect to the total amount of monovalent structural units.
    Type: Application
    Filed: April 26, 2019
    Publication date: July 7, 2022
    Applicant: Showa Denko Materials Co., Ltd.
    Inventors: Kazuyuki KAMO, Iori FUKUSHIMA, Kenichi ISHITSUKA, Takanori MIYA
  • Publication number: 20210395441
    Abstract: An organic electronic material including a charge transporting polymer having a structure that is represented by Formula (1) and that is branched in three or more directions (in the formula, Rf's are each independently a fluoroalkyl group, a and b are 0 or 1, and a and b are not both 0 at the same time).
    Type: Application
    Filed: September 28, 2018
    Publication date: December 23, 2021
    Applicant: Showa Denko Materials Co., Ltd.
    Inventors: Kazuyuki KAMO, Iori FUKUSHIMA, Tomotsugu SUGIOKA, Kenichi ISHITSUKA, Akihiro YOSHIDA
  • Publication number: 20210340441
    Abstract: An organic electronic material that includes a charge transporting polymer which has a branched structure and has a structural unit having a structure represented by Formula (1).
    Type: Application
    Filed: September 28, 2018
    Publication date: November 4, 2021
    Applicant: Showa Denko Materials Co., Ltd.
    Inventors: Kazuyuki KAMO, Iori FUKUSHIMA, Tomotsugu SUGIOKA, Kenichi ISHITSUKA
  • Patent number: 11118005
    Abstract: Embodiments of the present invention relate to a composition containing a polymer or oligomer (A) and an initiator (B), wherein the polymer or oligomer (A) contains no alkyl groups of 5 or more carbon atoms, contains at least one type of structural unit selected from the group consisting of a structural unit containing an aromatic amine structure and a structural unit containing a carbazole structure, and contains, at one or more terminals, a structural unit containing a thienyl group which may have a substituent, and a degree of solubility of the composition is capable of being changed by applying heat, light, or both heat and light.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: September 14, 2021
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Kazuyuki Kamo, Hirotaka Sakuma, Kenichi Ishitsuka, Tomotsugu Sugioka, Yuki Yoshinari, Ryo Honna, Daisuke Ryuzaki
  • Publication number: 20210179771
    Abstract: One embodiment relates to a charge transport polymer containing a molecular chain and terminal groups bonded to the molecular chain, wherein the terminal groups include a terminal group P containing a polymerizable functional group and a terminal group EW containing an aromatic hydrocarbon group substituted with an electron-withdrawing substituent, the terminal group P includes a terminal group represented by formula (P1) shown below, and among the carbon atoms contained in the ring of the aromatic hydrocarbon group, if the carbon atom that is bonded to the molecular chain is numbered 1, and numbers are assigned in order to the adjoining carbon atoms, then the electron-withdrawing substituent is bonded to a carbon atom numbered 1+2n (wherein n is an integer of 1 or greater).
    Type: Application
    Filed: October 27, 2017
    Publication date: June 17, 2021
    Inventors: Iori FUKUSHIMA, Hirotaka SAKUMA, Kenichi ISHITSUKA, Kazuyuki KAMO, Shunsuke KODAMA, Tomotsugu SUGIOKA, Tomomi UCHIYAMA, Ryota MORIYAMA, Ryo HONNA
  • Publication number: 20210179770
    Abstract: One embodiment relates to a charge transport polymer containing a molecular chain and terminal groups bonded to the molecular chain, wherein the terminal groups include a terminal group P containing a polymerizable functional group and a terminal group B containing an aromatic hydrocarbon group substituted with a branched or cyclic substituent, and among the carbon atoms contained in the ring of the aromatic hydrocarbon group, if the carbon atom that is bonded to the molecular chain is numbered 1, and numbers are assigned in order to the adjoining carbon atoms, then the branched or cyclic substituent is bonded to a carbon atom numbered 1+2n (wherein n is an integer of 1 or greater).
    Type: Application
    Filed: October 27, 2017
    Publication date: June 17, 2021
    Inventors: Iori FUKUSHIMA, Hirotaka SAKUMA, Kenichi ISHITSUKA, Kazuyuki KAMO, Shunsuke KODAMA, Tomotsugu SUGIOKA, Tomomi UCHIYAMA, Ryota MORIYAMA, Ryo HONNA
  • Publication number: 20210028366
    Abstract: Provided are: an organic electronic material which can be easily multilayered and that can be used in substrates, such as resin, that cannot be processed at high temperatures; an ink composition containing the same; an organic thin film formed using said organic electronic material or said ink composition; and an organic electronic element and an organic EL element that are formed using said organic thin film and that have a superior luminous efficacy and emission lifespan than conventional elements. Specifically, provided are: an organic electronic material that is characterized by containing an oligomer or a polymer having a structure that branches into three or more directions and has at least one polymerizable substituent; an ink composition containing said organic electronic material; and an organic thin film prepared using the aforementioned organic electronic material. Further, provided are an organic electronic element and an organic electroluminescent element containing said organic thin film.
    Type: Application
    Filed: October 13, 2020
    Publication date: January 28, 2021
    Inventors: Shigeaki FUNYUU, Kenichi ISHITSUKA, Yousuke HOSHI
  • Patent number: 10868252
    Abstract: An organic electronic material containing a charge transport polymer for which, in a molecular weight distribution chart measured by GPC, the area ratio accounted for by components having a molecular weight of less than 20,000 is not more than 40%, and the area ratio accounted for by components having a molecular weight of 500 or less is not more than 1%.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: December 15, 2020
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Yuki Yoshinari, Kenichi Ishitsuka, Tomotsugu Sugioka, Shigeaki Funyuu, Shunsuke Ueda, Naoki Asano, Hiroshi Takaira, Iori Fukushima, Daisuke Ryuzaki
  • Patent number: 10840452
    Abstract: One embodiment relates to an organic electronic material containing a charge transport polymer or oligomer, wherein the charge transport polymer or oligomer has a structural unit containing an aromatic amine structure substituted with a fluorine atom.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: November 17, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Shigeaki Funyuu, Tomotsugu Sugioka, Kenichi Ishitsuka, Naoki Asano
  • Patent number: 10840451
    Abstract: Provided are: an organic electronic material which can be easily multilayered and that can be used in substrates, such as resin, that cannot be processed at high temperatures; an ink composition containing the same; an organic thin film formed using said organic electronic material or said ink composition; and an organic electronic element and an organic EL element that are formed using said organic thin film and that have a superior luminous efficacy and emission lifespan than conventional elements. Specifically, provided are: an organic electronic material that is characterized by containing an oligomer or a polymer having a structure that branches into three or more directions and has at least one polymerizable substituent; an ink composition containing said organic electronic material; and an organic thin film prepared using the aforementioned organic electronic material. Further, provided are an organic electronic element and an organic electroluminescent element containing said organic thin film.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: November 17, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Shigeaki Funyuu, Kenichi Ishitsuka, Yousuke Hoshi
  • Publication number: 20200358022
    Abstract: Provided is a production method related to an organic thin film formed using an organic electronic material containing a charge transport compound, the method suppressing any deterioration in performance during film formation and enabling the formation of an organic thin film having excellent performance. The method for producing an organic thin film includes a step of forming a coating film of an organic electronic material containing a charge transport compound, and a step of heating the coating film under an inert gas atmosphere to form an organic thin film.
    Type: Application
    Filed: November 19, 2018
    Publication date: November 12, 2020
    Inventors: Kazuyuki KAMO, Shunsuke KODAMA, Iori FUKUSHIMA, Ryota MORIYAMA, Tomotsugu SUGIOKA, Ryo HONNA, Kenichi ISHITSUKA
  • Publication number: 20200259085
    Abstract: An embodiment of the present invention relates to a treatment liquid which contains an ionic compound and a solvent, and is used for adhering the ionic compound to at least one surface selected from the group consisting of a surface on which a layer having hole transport properties is to be formed, and a surface of a layer having hole transport properties.
    Type: Application
    Filed: April 16, 2020
    Publication date: August 13, 2020
    Inventors: Shigeaki FUNYUU, Naoki ASANO, Kenichi ISHITSUKA
  • Publication number: 20200235312
    Abstract: A charge transport material which can be used for an organic electronic element and contains a charge transport polymer capable of improving the element characteristics is provided, and an ink composition containing the material is also provided. Further, an organic electronic element and an organic EL element having excellent element characteristics, and a display element, an illumination device and a display device that use these elements are also provided. More specifically, an organic electronic material containing a charge transport polymer or oligomer having at least one structural unit containing a substituted or unsubstituted dibenzofuran structure or dibenzothiophene structure is provided.
    Type: Application
    Filed: February 2, 2018
    Publication date: July 23, 2020
    Inventors: Tomotsugu SUGIOKA, Kenichi ISHITSUKA, Yuki YOSHINARI, Ryo HONNA, Hirotaka SAKUMA
  • Publication number: 20200185610
    Abstract: One embodiment relates to an organic electronic material containing a charge transport polymer or oligomer, wherein the charge transport polymer or oligomer has a nitrogen atom and an aromatic hydrocarbon group ArF that is bonded to the nitrogen atom and is substituted with a fluorine atom, and also has a structural unit containing a carbazole structure.
    Type: Application
    Filed: October 12, 2017
    Publication date: June 11, 2020
    Inventors: Tomotsugu SUGIOKA, Shigeaki FUNYUU, Naoki ASANO, Kenichi ISHITSUKA, Yuki YOSHINARI
  • Patent number: 10665786
    Abstract: An embodiment of the present invention relates to a treatment liquid which contains an ionic compound and a solvent, and is used for adhering the ionic compound to at least one surface selected from the group consisting of a surface on which a layer having hole transport properties is to be formed, and a surface of a layer having hole transport properties.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: May 26, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Shigeaki Funyuu, Naoki Asano, Kenichi Ishitsuka
  • Publication number: 20200143954
    Abstract: Disclosed is an organic electronic material comprising charge transporting compounds and ionic compounds having electron-accepting properties and high solubility in a solvent. The organic electronic material is characterized by comprising charge transporting compounds and ionic compounds, and in that at least one of the ionic compounds is any one kind of compounds represented by general formulas (1b)-(3b). (In the formulas Y1-Y6 each independently represent a divalent linking group, R1-R6 each independently represent an electron-attracting organic substituent (these structures can further have substituents and hetero-atoms, and R1, R2 and R3, or, R4-R6 can respectively combine and become a ring shape or a polymer shape) and L represents a monovalent cation.
    Type: Application
    Filed: December 23, 2019
    Publication date: May 7, 2020
    Inventors: Kenichi ISHITSUKA, Shigeaki FUNYUU, Yousuke HOSHI
  • Publication number: 20200106018
    Abstract: Disclosed is an organic electronic material containing a polymer or oligomer having a structural unit that has hole transport properties, and also having an alkyl chain of 6 to 20 carbon atoms. Also disclosed are an ink composition, an organic layer, an organic electronic element, an organic electroluminescent element, a display element, an illumination device and a display device.
    Type: Application
    Filed: March 24, 2017
    Publication date: April 2, 2020
    Inventors: Ryo HONNA, Yuki YOSHINARI, Tomotsugu SUGIOKA, Kenichi ISHITSUKA, Hirotaka SAKUMA, Kazuyuki KAMO, Daisuke RYUZAKI
  • Publication number: 20200083456
    Abstract: One embodiment relates to an organic electronic material containing a charge transport polymer or oligomer having a crosslinking group represented by formula (1) shown below at least at one terminal, and also having a crosslinking group represented by formula (2) shown below at least at one terminal. In formula (1), each of Ra to Rg independently represents a hydrogen atom or a substituent. In formula (2), each of Ra to Rc independently represents a hydrogen atom or a substituent.
    Type: Application
    Filed: February 9, 2017
    Publication date: March 12, 2020
    Inventors: Tomotsugu SUGIOKA, Kenichi ISHITSUKA, Ryo HONNA, Hirotaka SAKUMA