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).

  • HOST MATERIAL, FILM AND ORGANIC LIGHT-EMITTING ELEMENT
    Publication number: 20200220094
    Abstract: Using a perovskite-type compound, an inexpensive host material having a high carrier mobility can be provided. Using a perovskite-type compound as a host material, an inexpensive organic light-emitting device having a high emission efficiency can be realized.
    Type: Application
    Filed: July 24, 2018
    Publication date: July 9, 2020
    Inventors: Toshinori MATSUSHIMA, Chihaya ADACHI, Chuanjiang QIN, Sangarange Don Atula SANDANAYAKA, Fatima BENCHEIKH, Takeshi KOMINO
  • Perovskite Film, Method for Producing the Same, Light-emitting device and Solar Cell
    Publication number: 20200203633
    Abstract: Stable perovskite films having substantially-no phase transition within a predetermined temperature range are disclosed. In the films, formation of carrier traps is suppressed. Thermally stable perovskite solar cells and light-emitting devices using the films are also disclosed.
    Type: Application
    Filed: May 15, 2018
    Publication date: June 25, 2020
    Inventors: Chuanjiang QIN, Toshinori MATSUSHIMA, Chihaya ADACHI
  • COMPOSITION OF MATTER FOR USE IN ORGANIC LIGHT-EMITTING DIODES
    Publication number: 20200168814
    Abstract: The present disclosure relates to compounds of Formula (I) as useful materials for OLED's. R is hydrogen or phenyl substituted with at least one alkyl; and D, D? and D? independently have diarylamino or indolyl moiety.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 28, 2020
    Inventors: Yoshitake SUZUKI, YuSeok YANG, Shuo-Hsien CHENG, Jorge AGUILERA-IPARRAGUIRRE, Minki HONG, Naoto NOTSUKA, Cheok-Lam WONG, Makoto YOSHIZAKI, Hayato ENDO, Chin-Yiu CHAN, Masaki TANAKA, Hajime NAKANOTANI, Chihaya ADACHI
  • LONG-PERSISTENT LUMINESCENT COMPOSITION, LONG-PERSISTENT LUMINESCENT DEVICE AND WAVELENGTH CONTROL METHOD
    Publication number: 20200165516
    Abstract: An organic long-persistent luminescent composition containing a first organic compound, a second organic compound and a third organic compound and satisfying the following expression (1) is a long-persistent luminescent material that facilitates emission color control. ES1(A) represents a lowest excited singlet energy level of emission from the first organic compound and the second organic compound, ES1(B) represents a lowest excited singlet energy level of the third organic compound. ES1(B)?ES1(A)?0.
    Type: Application
    Filed: August 7, 2018
    Publication date: May 28, 2020
    Inventors: Ryota KABE, Kazuya JINNAI, Chihaya ADACHI
  • Organic electroluminescent device
    Patent number: 10658596
    Abstract: An organic electroluminescent device having an anode, a cathode, and a light emitting layer between the anode and the cathode, in which the light emitting layer contains a first organic compound, a second organic compound, and a third organic compound that satisfy the following expression (A), the second organic compound is a delayed fluorescent material, and the third organic compound is a light emitting material, is capable of enhancing the light emission efficiency. ES1(A), ES1(B) and ES1(C) represent a lowest singlet excitation energy level of the first, second and third organic compound, respectively.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: May 19, 2020
    Assignee: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Hajime Nakanotani, Chihaya Adachi, Takahiro Higuchi, Taro Furukawa
  • Compound, Light-emitting Lifetime Lengthening Agent, Use of N-type Compound, Film and Light-emitting Device
    Publication number: 20200136056
    Abstract: A light-emitting device having a light-emitting layer containing a delayed fluorescence emitter and an n-type compound has an extended lifetime and high performance. A compound having a triazine ring substituted by a spiro aromatic group can be used as the n-type compound.
    Type: Application
    Filed: May 23, 2018
    Publication date: April 30, 2020
    Inventors: Linsong CUI, Hajime NAKANOTANI, Chihaya ADACHI
  • Organic electroluminescent device comprising delayed fluorescent materials
    Patent number: 10600983
    Abstract: An organic electroluminescent device containing a cathode, an anode, and one or more organic layers containing plural light emitting materials between the cathode and the anode, wherein the organic electroluminescent device is a multiple wavelength light emitting organic electroluminescent device emitting light from the plural light emitting materials, and which is designed so that light that has the shortest wavelength contains delayed fluorescent light can improve light emission efficiency of a short wavelength light and color tone and has a large degree of freedom in design and a simple structure.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: March 24, 2020
    Assignee: KYULUX, INC.
    Inventors: Junichi Nishide, Kensuke Masui, Hajime Nakanotani, Chihaya Adachi
  • ORGANIC ELECTROLUMINESCENT DEVICE, COMPOUND AND USE THEREOF
    Publication number: 20200058873
    Abstract: A compound represented by the following formula (1) is an excellent near-infrared emitter. R1 to R6 are H or a substituent and R7 is represented by the following formula (2). Ar11 is an aryl group, R11 is a substituent other than an aryl group and n11 is 1 or more.
    Type: Application
    Filed: February 21, 2018
    Publication date: February 20, 2020
    Inventors: Jean-Charles RIBIERRE, Sangarange Don Atula SANDANAYAKA, DaeHyeon KIM, Chihaya ADACHI, Anthony D'ALEO, Frederic FAGES, Elena ZABOROVA
  • Two-dimensional perovskite forming material, stacked structure, element, and transistor
    Patent number: 10563320
    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: Grant
    Filed: November 16, 2016
    Date of Patent: February 18, 2020
    Assignee: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Toshinori Matsushima, Chuanjiang Qin, Chihaya Adachi
  • Host material for delayed fluorescent materials, organic light-emitting device and compound
    Patent number: 10559757
    Abstract: A compound represented by (Tr)n-Z is useful as a host material for delayed fluorescent materials. Tr represents a substituted or unsubstituted triphenylenyl group, and plural Tr's existing in the general formula (1) may be the same as or different from each other. Z represents a carbonyl group or a substituted or unsubstituted, n-valent aromatic hydrocarbon group. n represents an integer of 2 to 6, but when Z is a carbonyl group, n is 2.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: February 11, 2020
    Assignee: KYULUX, INC.
    Inventors: Hirokazu Kuwabara, Takumi Shibata, Takehiro Takahashi, William John Potscavage, Jr., Chihaya Adachi
  • Light-emitting material, and organic electroluminescent device
    Patent number: 10559761
    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: Grant
    Filed: March 1, 2016
    Date of Patent: February 11, 2020
    Assignees: Kyulux, Inc., Hodogaya Chemical Co., Ltd.
    Inventors: Chihaya Adachi, Takehiro Takahashi
  • ORGANIC SEMICONDUCTOR LASER ELEMENT
    Publication number: 20200035921
    Abstract: An organic semiconductor laser device containing a compound represented by the following formula has a low threshold value for laser emission and has excellent laser characteristics. The ring A, the ring B and the ring C each are a aryl ring or a heteroaryl ring; Y1 is B, P, P?O, P?S, Al, Ga, As, Si—R or Ge—R; R is an aryl group or an alkyl group; X1 and X2 each are O, N—R?, S or Se; R? is an aryl group, a heteroaryl group or an alky group.
    Type: Application
    Filed: March 22, 2018
    Publication date: January 30, 2020
    Inventors: Hajime NAKANOTANI, Taro FURUKAWA, Chihaya ADACHI, Takuji HATAKEYAMA
  • CURRENT-INJECTION ORGANIC SEMICONDUCTOR LASER DIODE, METHOD FOR PRODUCING SAME AND PROGRAM
    Publication number: 20200028331
    Abstract: Disclosed is a current-injection organic semiconductor laser diode comprising a pair of electrodes, an optical resonator structure, and one or more organic layers including a light amplification layer composed of an organic semiconductor, which has a sufficient overlap between the distribution of exciton density and the electric field intensity distribution of the resonant optical mode during current injection to emit laser light.
    Type: Application
    Filed: February 7, 2018
    Publication date: January 23, 2020
    Inventors: Sangarange Don Atula SANDANAYAKA, Fatima BENCHEIKH, Kenichi GOUSHI, Jean-Charles RIBIERRE, Chihaya ADACHI, Takashi FUJIHARA, Toshinori MATSUSHIMA
  • Compound, light-emitting material, and organic light-emitting device
    Patent number: 10510977
    Abstract: A compound having a structure represented by the following general formula emits delayed fluorescent light, and is useful as a light-emitting material. One or more of R1, R2, R3, R4, and R5 represent a 9-carbazolyl group having a substituent at at least one of 1-position and 8-position, or a 10-phenoxazyl group or 10-phenothiazyl group having a substituent at at least one of 1-position and 9-position. The balance thereof represents a hydrogen atom or a substituent.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: December 17, 2019
    Assignees: KYULUX, INC., KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Keiro Nasu, Chihaya Adachi, Hajime Nakanotani, YuSeok Yang, Hiroko Nomura
  • COMPOUND, LIGHT EMITTING MATERIAL AND ORGANIC LIGHT EMITTING ELEMENT
    Publication number: 20190378997
    Abstract: A compound having a structure, represented by the following general formula is useful as a light emitting material. At least one of R1 to R9 is a substituent; Y1 to Y3 each are a methylene group, a carbonyl group, a thiocarbonyl group, an imino group, an oxygen atom, a sulfur atom or a sulfonyl group; Z is a nitrogen atom, a boron atom or a phosphine oxide group.
    Type: Application
    Filed: February 28, 2018
    Publication date: December 12, 2019
    Inventors: Yuma ISHIKAWA, Youichi TSUCHIYA, Chihaya ADACHI, Jean-Luc BREDAS, Xiankai CHEN
  • Organic light-emitting device, host material, light-emitting material, and compound
    Patent number: 10497883
    Abstract: A high light emission efficiency can be achieved by the use of a compound represented by the general formula (1) as a host material or a light-emitting material of a light-emitting layer of an organic light-emitting device. X1 to X12 each independently represent C or BH constituting carborane, provided that among X1 to X12, the bonding positions to A and D each represent C, and the other thereof each represent BH; A represents an acceptor bonded to the carborane through an aromatic ring or a heteroaromatic ring; and D represents a donor bonded to the carborane through an aromatic ring or a heteroaromatic ring.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: December 3, 2019
    Assignee: KYULUX, INC.
    Inventors: Chihaya Adachi, Takuma Yasuda, Takuro Nishimoto, Sae Youn Lee
  • Organic electroluminescent device, device array, method for producing organic electroluminescent device, method for controlling emission wavelength of organic electroluminescent device
    Patent number: 10490750
    Abstract: An organic electroluminescent device having a donor layer containing a donor compound, a spacer layer containing a spacer compound, and an acceptor layer containing an acceptor compound in that order, wherein the donor compound and the acceptor compound are compounds to form an exciplex to radiate delayed fluorescence, and the excited triplet energy of the spacer compound is higher than the excited triplet energy of the exciplex, can be controlled to have different emission wavelengths not requiring change of the combination of the donor compound and the acceptor compound therein.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 26, 2019
    Assignee: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Hajime Nakanotani, Taro Furukawa, Chihaya Adachi
  • LIGHT-EMITTING MATERIAL, COMPOUND, AND ORGANIC LIGHT-EMITTING ELEMENT
    Publication number: 20190348611
    Abstract: A compound represented by the following general formula is excellent in light emission properties. R1 and R2 each independently represent a fluorinated alkyl group, D represents a substituent in which Hammett's ?p value is negative, and A represents a substituent in which Hammett's ?p value is positive.
    Type: Application
    Filed: December 21, 2017
    Publication date: November 14, 2019
    Inventors: Yan GENG, Chihaya ADACHI, Hajime NAKANOTANI, Naoto NOTSUKA, Keiro NASU
  • ORGANIC LIGHT-EMITTING ELEMENT, AND LIGHT-EMITTING MATERIAL AND FLUORESCENT BODY USED IN SAME
    Publication number: 20190348617
    Abstract: Disclosed is an organic light-emitting device using a compound capable of emitting delayed fluorescence and capable of undergoing intramolecular hydron transfer. The compound includes, for example, a compound represented by the general formula. X1 to X3 each represent O or S; R1 to R6 each represent nH or a substituent; n, n1 to n3 each represent an integer of 1 to 3.
    Type: Application
    Filed: December 20, 2017
    Publication date: November 14, 2019
    Inventors: Masashi MAMADA, Chihaya ADACHI, Hajime NAKANOTANI, YuSeok YANG
  • LIGHT-EMITTING MATERIAL, ORGANIC LIGHT-EMITTING DEVICE, AND COMPOUND
    Publication number: 20190345095
    Abstract: A compound represented by the general formula (11) is useful as a light-emitting material. R1, R2, R4 and R5 represent a group represented by the general formula (2), R11 to R20 represent a hydrogen atom or a substituent, and L12 represents a substituted or unsubstituted arylene group or a substituted or unsubstituted heteroarylene group.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 14, 2019
    Inventors: Chihaya ADACHI, Takuma YASUDA, Ryosuke KONDO, Masaki NUMATA, Jun-Yun KIM, Inseob PARK