Patents by Inventor Sangarange Don Atula SANDANAYAKA

Sangarange Don Atula SANDANAYAKA 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).

  • Current-injection organic semiconductor laser diode, method for producing same and program
    Patent number: 11955776
    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: Grant
    Filed: February 16, 2023
    Date of Patent: April 9, 2024
    Assignees: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, KOALA Tech Inc.
    Inventors: Sangarange Don Atula Sandanayaka, Fatima Bencheikh, Kenichi Goushi, Jean-Charles Ribierre, Chihaya Adachi, Takashi Fujihara, Toshinori Matsushima
  • Organic light-emitting element
    Patent number: 11930654
    Abstract: An organic light-emitting device having a perovskite layer having a thickness of 50 nm or more has a low drive voltage and a high power efficiency, and can suppress interelectrode short-circuiting and current leakage.
    Type: Grant
    Filed: March 2, 2023
    Date of Patent: March 12, 2024
    Assignee: KYULUX, INC.
    Inventors: Toshinori Matsushima, Chihaya Adachi, Chuanjiang Qin, Sangarange Don Atula Sandanayaka, Fatima Bencheikh, Takeshi Komino
  • Continuous-wave organic thin-film distributed feedback laser and electrically driven organic semiconductor laser diode
    Patent number: 11909177
    Abstract: Disclosed are a current excitation type organic semiconductor laser containing a pair of electrodes, an organic laser active layer and an optical resonator structure between the pair of electrodes and a laser having an organic layer on a distributed feedback grating structure. The lasers include a continuous-wave laser, a quasi-continuous-wave laser and an electrically driven semiconductor laser diode.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: February 20, 2024
    Assignees: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, KOALA TECH INC.
    Inventors: Chihaya Adachi, Sangarange Don Atula Sandanayaka, Toshinori Matsushima, Kou Yoshida, Jean-Charles Ribierre, Fatima Bencheikh, Kenichi Goushi, Takashi Fujihara
  • CONTINUOUS-WAVE ORGANIC THIN-FILM DISTRIBUTED FEEDBACK LASER AND ELECTRICALLY DRIVEN ORGANIC SEMICONDUCTOR LASER DIODE
    Publication number: 20230283050
    Abstract: Disclosed are a current excitation type organic semiconductor laser containing a pair of electrodes, an organic laser active layer and an optical resonator structure between the pair of electrodes and a laser having an organic layer on a distributed feedback grating structure. The lasers include a continuous-wave laser, a quasi-continuous-wave laser and an electrically driven semiconductor laser diode.
    Type: Application
    Filed: May 11, 2023
    Publication date: September 7, 2023
    Inventors: Chihaya ADACHI, Sangarange Don Atula SANDANAYAKA, Toshinori MATSUSHIMA, Kou YOSHIDA, Jean-Charles RIBIERRE, Fatima BENCHEIKH, Kenichi GOUSHI, Takashi FUJIHARA
  • ORGANIC LIGHT-EMITTING ELEMENT
    Publication number: 20230225147
    Abstract: An organic light-emitting device having a perovskite layer having a thickness of 50 nm or more has a low drive voltage and a high power efficiency, and can suppress interelectrode short-circuiting and current leakage.
    Type: Application
    Filed: March 2, 2023
    Publication date: July 13, 2023
    Inventors: Toshinori MATSUSHIMA, Chihaya ADACHI, Chuanjiang QIN, Sangarange Don Atula SANDANAYAKA, Fatima BENCHEIKH, Takeshi KOMINO
  • CURRENT-INJECTION ORGANIC SEMICONDUCTOR LASER DIODE, METHOD FOR PRODUCING SAME AND PROGRAM
    Publication number: 20230198230
    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 16, 2023
    Publication date: June 22, 2023
    Inventors: Sangarange Don Atula SANDANAYAKA, Fatima BENCHEIKH, Kenichi GOUSHI, Jean-Charles RIBIERRE, Chihaya ADACHI, Takashi FUJIHARA, Toshinori MATSUSHIMA
  • Current-injection organic semiconductor laser diode, method for producing same and program
    Patent number: 11626710
    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 excitor density and the electric field intensity distribution of the resonant optical mode during current injection to emit laser light.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: April 11, 2023
    Assignees: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, KOALA TECH INC.
    Inventors: Sangarange Don Atula Sandanayaka, Fatima Bencheikh, Kenichi Goushi, Jean-Charles Ribierre, Chihaya Adachi, Takashi Fujihara, Toshinori Matsushima
  • Continuous-wave organic thin-film distributed feedback laser and electrically driven organic semiconductor laser diode
    Patent number: 11539190
    Abstract: Disclosed are a current excitation type organic semiconductor laser containing a pair of electrodes, an organic laser active layer and an optical resonator structure between the pair of electrodes and a laser having an organic layer on a distributed feedback grating structure. The lasers include a continuous-wave laser, a quasi-continuous-wave laser and an electrically driven semiconductor laser diode.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: December 27, 2022
    Assignees: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, KOALA TECH INC.
    Inventors: Chihaya Adachi, Sangarange Don Atula Sandanayaka, Toshinori Matsushima, Kou Yoshida, Jean-Charles Ribierre, Fatima Bencheikh, Kenichi Goushi, Takashi Fujihara
  • Film and organic light-emitting device containing perovskite-type compound and organic light-emitting material
    Patent number: 11476435
    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: Grant
    Filed: July 24, 2018
    Date of Patent: October 18, 2022
    Assignee: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Toshinori Matsushima, Chihaya Adachi, Chuanjiang Qin, Sangarange Don Atula Sandanayaka, Fatima Bencheikh, Takeshi Komino
  • CONTINUOUS-WAVE ORGANIC THIN-FILM DISTRIBUTED FEEDBACK LASER AND ELECTRICALLY DRIVEN ORGANIC SEMICONDUCTOR LASER DIODE
    Publication number: 20220311218
    Abstract: Disclosed are a current excitation type organic semiconductor laser containing a pair of electrodes, an organic laser active layer and an optical resonator structure between the pair of electrodes and a laser having an organic layer on a distributed feedback grating structure. The lasers include a continuous-wave laser, a quasi-continuous-wave laser and an electrically driven semiconductor laser diode.
    Type: Application
    Filed: February 17, 2022
    Publication date: September 29, 2022
    Inventors: Chihaya ADACHI, Sangarange Don Atula SANDANAYAKA, Toshinori MATSUSHIMA, Kou YOSHIDA, Jean-Charles RIBIERRE, Fatima BENCHEIKH, Kenichi GOUSHI, Takashi FUJIHARA
  • LASER ELEMENT, COMPOUND, METHOD FOR PRODUCING COMPOUND AND LASING SENSITIZER
    Publication number: 20220294190
    Abstract: Disclosed is a laser device containing a. compound represented by the following formula in a light-emitting layer, R1 and R5 each represent a substituent having a positive Hammett's ?p value, and R2 to R4, and R6 to R15 each represent a hydrogen atom or a substituent.
    Type: Application
    Filed: September 25, 2020
    Publication date: September 15, 2022
    Inventors: Sangarange Don Atula SANDANAYAKA, Kohona Pahala Walawwe Buddhika Sanjeewa Bandara KARUNATHILAKA, Umamahesh BALIJAPALLI, Adikari Mudiyanselage Chathuranganie SENEVIRATHNE, Toshinori MATSUSHIMA, Chihaya ADACHI
  • ELECTRICALLY DRIVEN ORGANIC SEMICONDUCTOR LASER DIODE, AND METHOD FOR PRODUCING SAME
    Publication number: 20220231481
    Abstract: Disclosed is an electrically driven organic semiconductor laser diode comprising a pair of electrodes, an optical resonator structure having a distributed feedback (DFB) structure, and one or more organic layers including a light amplification layer composed of an organic semiconductor, in which the distributed feedback structure is composed of a first-order Bragg scattering region, a two-dimensional distributed feedback, or a circular distributed feedback.
    Type: Application
    Filed: March 11, 2020
    Publication date: July 21, 2022
    Inventors: Sangarange Don Atula SANDANAYAKA, Toshinori MATSUSHIMA, Fatima BENCHEIKH, Jean-Charles RIBIERRE, Ryutaro KOMATSU, Shinobu TERAKAWA, Jong Uk KIM, Adikari Mudiyanselage Chathuranganie SENEVIRATHNE, Chihaya ADACHI, Anthony D'ALEO, Takashi FUJIHARA
  • COMPOUND, ORGANIC SEMICONDUCTOR LASER AND METHOD FOR PRODUCING SAME
    Publication number: 20220169608
    Abstract: A compound of the formula (1) exhibits high photoluminescence quantum yields, high radiative decay constant and low ASE thresholds from solution-processed neat and blend films. Ar1 and Ar2 are aryl groups, L is a divalent group having a group of the formula (2), and R is H or a diarylamino group. At least one alkyl group having at least five carbon atoms which are bonded is present in the formula (1).
    Type: Application
    Filed: June 5, 2020
    Publication date: June 2, 2022
    Inventors: Sangarange Don Atula SANDANAYAKA, Adikari Mudiyanselage Chathuranganie SENEVIRATHNE, Toshinori MATSUSHIMA, Chihaya ADACHI, Ebinazar Benjamin NAMDAS, Shih-Chun LO, Van T. N. MAI, Atul SHUKLA, Ilene ALLISON, Sarah K. MCGREGOR
  • CURRENT-INJECTION ORGANIC SEMICONDUCTOR LASER DIODE, METHOD FOR PRODUCING SAME AND PROGRAM
    Publication number: 20220037860
    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 excitor density and the electric field intensity distribution of the resonant optical mode during current injection to emit laser light.
    Type: Application
    Filed: October 19, 2021
    Publication date: February 3, 2022
    Inventors: Sangarange Don Atula SANDANAYAKA, Fatima BENCHEIKH, Kenichi GOUSHI, Jean-Charles RIBIERRE, Chihaya ADACHI, Takashi FUJIHARA, Toshinori MATSUSHIMA
  • Current-injection organic semiconductor laser diode, meihod for producing same and program
    Patent number: 11183815
    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: Grant
    Filed: February 7, 2018
    Date of Patent: November 23, 2021
    Assignee: KOALA TECH INC.
    Inventors: Sangarange Don Atula Sandanayaka, Fatima Bencheikh, Kenichi Goushi, Jean-Charles Ribierre, Chihaya Adachi, Takashi Fujihara, Toshinori Matsushima
  • Organic electroluminescent device, compound and use thereof
    Patent number: 11165027
    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: Grant
    Filed: February 21, 2018
    Date of Patent: November 2, 2021
    Assignees: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE D'AIX-MARSEILLE
    Inventors: Jean-Charles Ribierre, Sangarange Don Atula Sandanayaka, DaeHyeon Kim, Chihaya Adachi, Anthony D'Aleo, Frederic Fages, Elena Zaborova
  • ORGANIC LIGHT-EMITTING ELEMENT
    Publication number: 20200259112
    Abstract: An organic light-emitting device having a perovskite layer having a thickness of 50 nm or more has a low drive voltage and a high power efficiency, and can suppress interelectrode short-circuiting and current leakage.
    Type: Application
    Filed: July 6, 2018
    Publication date: August 13, 2020
    Inventors: Toshinori MATSUSHIMA, Chihaya ADACHI, Chuanjiang QIN, Sangarange Don Atula SANDANAYAKA, Fatima BENCHEIKH, Takeshi KOMINO
  • 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
  • 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
  • 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