Patents by Inventor Chihaya Adachi

Chihaya Adachi 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).

  • Long Persistent Luminescence Emitter and Long Persistent Luminescent Element
    Publication number: 20180346807
    Abstract: The invention discloses a long persistent luminescence emitter which has an electron-donating molecule that is stable in the radical cation state and an electron-accepting molecule that is stable in the radical anion state and from which luminescence is observed at 10 K after photo-irradiation of the long persistent luminescence emitter stops. According to the disclosed invention, persistent luminescence can be exhibited for a long time with only organic compounds without the use of any rare-earth elements.
    Type: Application
    Filed: August 7, 2018
    Publication date: December 6, 2018
    Inventors: Ryota KABE, Chihaya ADACHI
  • LIGHT-EMITTING MATERIAL, ORGANIC LIGHT-EMITTING DEVICE, AND COMPOUND
    Publication number: 20180337347
    Abstract: A compound represented by the general formula (1) is useful as a light-emitting material. R1, R3, and R5 each represent a cyano group, or R1, R2, R4, and R5 each represent a cyano group; and the others of R1 to R6 each represent a group represented by any one of the following general formula (4), etc.
    Type: Application
    Filed: July 20, 2018
    Publication date: November 22, 2018
    Inventors: Masatsugu TANEDA, Katsuyuki SHIZU, Hiroyuki TANAKA, Hiroki NODA, Hajime NAKANOTANI, Chihaya ADACHI
  • TWO-DIMENSIONAL PEROVSKITE FORMING MATERIAL, STACKED STRUCTURE, ELEMENT, AND TRANSISTOR
    Publication number: 20180337357
    Abstract: A two-dimensional perovskite forming material with an ammonium halide group disposed on its surface can achieve a high carrier mobility. Preferably, the two-dimensional perovskite forming material includes a monolayer that has such an ammonium halide group at a terminal of its molecular structure, and the ammonium halide group in the monolayer is disposed in an ordered fashion on the surface of the material.
    Type: Application
    Filed: November 16, 2016
    Publication date: November 22, 2018
    Inventors: Toshinori MATSUSHIMA, Chuanjiang QIN, Chihaya ADACHI
  • LIGHT-EMITTING MATERIAL, AND ORGANIC LIGHT-EMITTING ELEMENT
    Publication number: 20180315929
    Abstract: The compound represented by the following general formula is useful as a light-emitting material for an organic light-emitting device. Z1, Z2 and Z3 in the following general formula each independently represent a substituent.
    Type: Application
    Filed: April 25, 2018
    Publication date: November 1, 2018
    Inventors: Chihaya ADACHI, Tetsuya NAKAGAWA, Jie LI
  • Light-emitting material, organic light-emitting device, and compound
    Patent number: 10050215
    Abstract: A compound represented by the general formula (1) is useful as a light-emitting material. R1, R3, and R5 each represent a cyano group, or R1, R2, R4, and R5 each represent a cyano group; and the others of R1 to R6 each represent a group represented by any one of the following general formula (4), etc.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: August 14, 2018
    Assignee: KYULUX, INC.
    Inventors: Masatsugu Taneda, Katsuyuki Shizu, Hiroyuki Tanaka, Hiroki Noda, Hajime Nakanotani, Chihaya Adachi
  • Light-emitting material, organic light-emitting device, and compound
    Patent number: 10043981
    Abstract: A compound represented by the general formula (1) is useful as a light-emitting material. In the general formula (1), Ar1 to Ar3 each represent a substituted or unsubstituted aryl group, provided that at least one of Ar1 to Ar3 each represent a carbazolyl group having an N-position substituted with a group containing an electron withdrawing group.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: August 7, 2018
    Assignee: KYULUX, INC.
    Inventors: Hiroki Noda, Masatsugu Taneda, Katsuyuki Shizu, Hiroyuki Tanaka, Chihaya Adachi
  • Compound having diazatriphenylene ring structure, and organic electroluminescent device
    Patent number: 10032995
    Abstract: A compound that emits fluorescence and delayed fluorescence is provided as a material for an organic electroluminescent device of high efficiency, and an organic photoluminescent device and an organic electroluminescent device of high efficiency and high luminance are provided using this compound. The compound of a general formula (1) having a diazatriphenylene ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: July 24, 2018
    Assignee: Kyulux, Inc.
    Inventors: Chihaya Adachi, Takuma Yasuda, Katsuyuki Shizu, Takehiro Takahashi, Kazunori Togashi
  • Compound having substituted triphenylene ring structure, and organic electroluminescent device
    Patent number: 10026903
    Abstract: An organic compound having an excellent electron injection and transport performance is provided as a material for a low-power-consumption organic electroluminescent device. A low-power-consumption organic electroluminescent device is also provided by using the compound. The compound is a compound of general formula (1) or (2) having a substituted bipyridyl and triphenylene ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and uses the compound as constituent material of at least one of the organic layers.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: July 17, 2018
    Assignees: Hodogaya Chemical Co., Ltd., Kyushu University, National University Corporation
    Inventors: Chihaya Adachi, Kazunori Togashi, Norimasa Yokoyama, Shintaro Nomura
  • ORGANIC ELECTROLUMINESCENT DEVICE
    Publication number: 20180190924
    Abstract: An organic electroluminescent device having a structure of at least an anode 2, a light-emitting layer 3, an electron transporting layer 5 and a cathode 6 layered in that order, and having a charge trap concentration reducing layer 4 in the interface between the light-emitting layer 3 and the electron transporting layer 5 can suppress performance deterioration with time in driving to prolong the lifetime thereof.
    Type: Application
    Filed: June 30, 2016
    Publication date: July 5, 2018
    Inventors: Ping Kuen Daniel TSANG, Chihaya ADACHI
  • Organic electroluminescent device
    Patent number: 10014487
    Abstract: An organic electroluminescent device comprising at least two organic layers including a light emitting layer (5) and a delayed fluorescent exciplex layer (7) containing a donor compound and an acceptor compound, between a pair of electrodes (2, 9) is highly efficient in formation of a singlet excited state and enables high light emission efficiency.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: July 3, 2018
    Assignee: KYULUX, INC.
    Inventors: Kenichi Goushi, Yuta Hirayama, Chihaya Adachi
  • ORGANIC ELECTRO-LUMINESCENT ELEMENT AND BIOINSTRUMENTATION DEVICE
    Publication number: 20180149595
    Abstract: An organic EL element having a luminescence peak in a near-infrared range comprises a positive electrode, a negative electrode, and at least one organic layer including a luminescent layer located between the positive electrode and the negative electrode. The luminescent layer comprises a host material, a delayed fluorescent material and a luminescent material. The LUMO and HOMO energy levels of the delayed fluorescent material and the luminescent material, the absorption spectrum of the luminescent material, and the emission spectrum of the delayed fluorescent material satisfy predetermined relationships.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 31, 2018
    Applicants: Kyushu University, National University Corporation, HAMAMATSU PHOTONICS K.K.
    Inventors: Chihaya ADACHI, Hajime NAKANOTANI, Takahiko YAMANAKA, Shigeo HARA, Toru HIROHATA
  • ORGANIC ELECTRO-LUMINESCENT ELEMENT AND BIOINSTRUMENTATION DEVICE
    Publication number: 20180151810
    Abstract: An organic electro-luminescent element having a luminescence peak in a near-infrared range, comprising a positive electrode, a negative electrode, and at least one organic layer including a luminescent layer located between the positive electrode and the negative electrode, wherein the luminescent layer comprises a host material, a delayed fluorescent material and a luminescent material, wherein each of the delayed fluorescent material and the luminescent material have a structure with two or three benzene rings bonded to an N atom.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 31, 2018
    Applicants: Kyushu University, National University Corporation, HAMAMATSU PHOTONICS K.K.
    Inventors: Chihaya ADACHI, Hajime NAKANOTANI, Takahiko YAMANAKA, Shigeo HARA, Toru HIROHATA
  • Light-emitting material, and organic light-emitting element
    Patent number: 9985215
    Abstract: The compound represented by the following general formula is useful as a light-emitting material for an organic light-emitting device. Z1, Z2 and Z3 in the following general formula each independently represent a substituent.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: May 29, 2018
    Assignee: KYULUX, INC.
    Inventors: Chihaya Adachi, Tetsuya Nakagawa, Jie Li
  • Organic metal complex, light emitting material, delayed fluorescent material, and organic light emitting device
    Patent number: 9957260
    Abstract: An organic metal complex represented by the following general formula is useful as a light emitting material for an organic electroluminescent device and others. X represents O, S or —N(R7)—; Y represents O, S or —N(—SO2—R8)—; R1 to R8 represent H, an alkyl group or an aryl group; at least one of Z1 and Z2 represents a phenoxazin-10-yl group, a phenothiazin-10-yl group, a phenazin-10-yl group, etc.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: May 1, 2018
    Assignees: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD., DYDEN CO.
    Inventors: Yumi Sakai, Hiroshi Miyazaki, Chihaya Adachi, Naoto Noutsuka
  • MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE, LIGHT-EMITTING MATERIAL, AND ORGANIC ELECTROLUMINESCENT DEVICE
    Publication number: 20180108857
    Abstract: To provide a light-emitting material of a light emitting layer, particularly a dopant material or a host material of a light emitting layer emitting delayed fluorescence, or a material suitable for a hole blocking layer, as a material for an organic electroluminescent device having a high efficiency, and also to provide an organic photoluminescent device or an organic electroluminescent device having a high efficiency and a high luminance, particularly an organic EL device suppressed in the roll-off phenomenon, by using the material. A material for an organic electroluminescent device, containing a benzonitrile derivative of the following general formula (1), and an organic electroluminescent device containing a pair of electrodes and one layer or plural layers including at least a light emitting layer intervening between the electrodes, the organic electroluminescent device using the material.
    Type: Application
    Filed: March 14, 2016
    Publication date: April 19, 2018
    Inventors: Chihaya Adachi, Jun-Ichi Nishide, Yasuhide Hiraga, Takehiro Takahashi
  • Light-emitting material, organic light-emitting device, and compound
    Patent number: 9935272
    Abstract: A compound represented by the following general formula (1) is useful as a light-emitting material. Y1 and Y2 each independently represent N or C(R7); and R1 to R7 each independently represent a hydrogen atom or a substituent, provided that at least one of R1 and R2, and at least one of R5 and R6 represent a group represented by the following general formula (2). Z represent a divalent linking group having a linking chain length of 1 atom; L1 represents a single bond or a substituted or unsubstituted arylene group; and R11 to R18 each independently represent a hydrogen atom or a substituent.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: April 3, 2018
    Assignee: KYULUX, INC.
    Inventors: Hirokazu Kuwabara, Chihaya Adachi
  • LIGHT-EMITTING MATERIAL, AND ORGANIC ELECTROLUMINESCENT DEVICE
    Publication number: 20180047915
    Abstract: To provide a light-emitting material containing a compound having a high excitation triplet level, particularly a host material of a light emitting layer, as a material for an organic electroluminescent device with high efficiency, and also to provide an organic electroluminescent device with high efficiency and high luminance by using the material. A light-emitting material containing a compound having a carbazole ring structure represented by the following general formula (1), and an organic electroluminescent device containing a pair of electrodes and one layer or plural layers including at least a light emitting layer intervening between the electrodes, the light emitting layer containing as a constitutional material thereof the light-emitting material.
    Type: Application
    Filed: March 1, 2016
    Publication date: February 15, 2018
    Inventors: Chihaya Adachi, Takehiro Takahashi
  • COMPOUND HAVING SUBSTITUTED TRIPHENYLENE RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE
    Publication number: 20170338417
    Abstract: An organic compound having an excellent electron injection and transport performance is provided as a material for a low-power-consumption organic electroluminescent device. A low-power-consumption organic electroluminescent device is also provided by using the compound. The compound is a compound of general formula (1) or (2) having a substituted bipyridyl and triphenylene ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and uses the compound as constituent material of at least one of the organic layers.
    Type: Application
    Filed: May 24, 2017
    Publication date: November 23, 2017
    Inventors: Chihaya Adachi, Kazunori Togashi, Norimasa Yokoyama, Shintaro Nomura
  • LIGHT-EMITTING MATERIAL, ORGANIC LIGHT-EMITTING DEVICE, AND COMPOUND
    Publication number: 20170338418
    Abstract: A compound represented by the general formula (1) is useful as a light-emitting material. In the general formula (1), Ar1 to Ar3 each represent a substituted or unsubstituted aryl group, provided that at least one of Ar1 to Ar3 each represent a carbazolyl group having an N-position substituted with a group containing an electron withdrawing group.
    Type: Application
    Filed: August 8, 2017
    Publication date: November 23, 2017
    Inventors: Hiroki NODA, Masatsugu TANEDA, Katsuyuki SHIZU, Hiroyuki TANAKA, Chihaya ADACHI
  • Compound, light emitting material, and organic light emitting device
    Patent number: 9818955
    Abstract: The compound represented by the following general formula is useful as a light emitting material. Ar1 represents an arylene group, Ar2 and Ar3 represent an aryl group, and R1 to R8 represent a hydrogen atom or a substituent, provided that at least one of R1 to R8 represents a diarylamino group.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: November 14, 2017
    Assignee: KYULUX, INC.
    Inventors: Hironori Kaji, Hajime Suzuki, Katsuaki Suzuki, Hajime Oiwa, Atsushi Wakamiya, Tatsuya Fukushima, Furitsu Suzuki, Yasujiro Murata, Katsuyuki Shizu, Chihaya Adachi