Patents by Inventor Sazzadur Rahman Khan

Sazzadur Rahman Khan 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).

  • Liquid crystal compositions, mixtures, elements, and dimmable devices
    Patent number: 11186773
    Abstract: Described herein are liquid crystal compositions that can allow for the adjustment of their refractive indices by the application of an electric field. Also described herein are liquid crystal mixtures containing these compositions. In addition, selectively dimmable reverse-mode polymer dispersed liquid crystal (PDLC) elements and devices using these compositions are also described, which are transparent when no or low voltage is applied and opaque when a voltage or high voltage is applied.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: November 30, 2021
    Assignee: Nitto Denko Corporation
    Inventors: Sazzadur Rahman Khan, Shijun Zheng
  • Liquid crystal composition containing a five-membered heterocyclic ring, reverse-mode polymer dispersed liquid crystal element, and associated selectively dimmable device
    Patent number: 11149203
    Abstract: Described herein are liquid crystal compositions containing a five-member heterocyclic ring that can allow for the adjustment of their refractive indices under the application of an electric field. In addition, selectively dimmable reverse-mode polymer dispersed liquid crystal elements and devices using the aforementioned compositions are also described, which are transparent when no voltage is applied and opaque when a voltage is applied.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: October 19, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Sazzadur Rahman Khan, Hiep Luu
  • LIQUID CRYSTAL COMPOSITIONS, MIXTURES, ELEMENTS, AND DIMMABLE DEVICES
    Publication number: 20210189240
    Abstract: Described herein are liquid crystal compositions that can allow for the adjustment of their refractive indices by the application of an electric field. Also described herein are liquid crystal mixtures containing these compositions. In addition, selectively dimmable reverse-mode polymer dispersed liquid crystal (PDLC) elements and devices using these compositions are also described, which are transparent when no or low voltage is applied and opaque when a voltage or high voltage is applied.
    Type: Application
    Filed: April 13, 2017
    Publication date: June 24, 2021
    Applicant: Nitto Denko Corporation
    Inventors: Sazzadur Rahman KHAN, Shijun ZHENG
  • Heterocyclic liquid crystal composition, reverse-mode polymer dispersed liquid crystal element, and selectively dimmable device
    Patent number: 11001757
    Abstract: Described herein are heterocyclic liquid crystal compositions that can allow for the adjustment of their refractive indices by the application of an electric field. In addition, selectively dimmable reverse-mode polymer dispersed liquid crystal (PDLC) elements and devices using these compositions are also described, which are transparent when no voltage is applied and opaque when a voltage is applied.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: May 11, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Sazzadur Rahman Khan, Hiep Luu
  • Heterocyclic liquid crystal composition, reverse-mode polymer dispersed liquid crystal element, and associated selectively dimmable device
    Patent number: 11003008
    Abstract: Heterocyclic liquid crystal compositions that can allow for the adjustment of their refractive indices by the application of an electric field, such as those described by the following formula: are disclosed. Also disclosed are selectively dimmable reverse-mode polymer dispersed liquid crystal (PDLC) elements and devices using the aforementioned compositions, which are transparent when no voltage is applied and opaque when a voltage is applied.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: May 11, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Sazzadur Rahman Khan, Hiep Luu
  • Liquid crystal composition, liquid crystal mixture, reverse-mode polymer dispersed liquid crystal element, and associated selectively dimmable device
    Patent number: 10934486
    Abstract: Described herein are liquid crystal compositions and derivative mixtures thereof that can allow for the adjustment of their refractive indices by the application of an electric field. In addition, selectively dimmable reverse-mode polymer dispersed liquid crystal (PDLC) elements and devices using the aforementioned compositions are also described, which are transparent when no voltage is applied and opaque when a voltage is applied.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: March 2, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Sazzadur Rahman Khan, Hiep Luu, Ekambaram Sambandan
  • HETEROCYCLIC LIQUID CRYSTAL COMPOSITION, REVERSE-MODE POLYMER DISPERSED LIQUID CRYSTAL ELEMENT, AND SELECTIVELY DIMMABLE DEVICE
    Publication number: 20200369957
    Abstract: Described herein are heterocyclic liquid crystal compositions that can allow for the adjustment of their refractive indices by the application of an electric field. In addition, selectively dimmable reverse-mode polymer dispersed liquid crystal (PDLC) elements and devices using these compositions are also described, which are transparent when no voltage is applied and opaque when a voltage is applied.
    Type: Application
    Filed: August 3, 2018
    Publication date: November 26, 2020
    Inventors: Sazzadur Rahman Khan, Hiep Luu
  • Photocatalytic element
    Patent number: 10835631
    Abstract: A photocatalytic element including: a photocatalytic layer containing at least one photocatalytic material; and a light emitting source in optical communication with the photocatalytic material, the light emitting source disposed sufficiently proximal to the photocatalytic material to raise the surface temperature of at least some of the photocatalytic material to a temperature between 10° C. and 90° C. is provided.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: November 17, 2020
    Assignee: Nitto Denko Corporation
    Inventors: Ekambaram Sambandan, Sazzadur Rahman Khan, Takuya Fukumura, Hiroyuki Katayama
  • LIQUID CRYSTAL COMPOSITION CONTAINING A FIVE-MEMBERED HETEROCYCLIC RING, REVERSE-MODE POLYMER DISPERSED LIQUID CRYSTAL ELEMENT, AND ASSOCIATED SELECTIVELY DIMMABLE DEVICE
    Publication number: 20200347302
    Abstract: Described herein are liquid crystal compositions containing a five-membered heterocyclic ring that can allow for the adjustment of their refractive indices under the application of an electric field. In addition, selectively dimmable reverse-mode polymer dispersed liquid crystal (PDLC) elements and devices using the aforementioned compositions are also described, which are transparent when no voltage is applied and opaque when a voltage is applied.
    Type: Application
    Filed: January 24, 2019
    Publication date: November 5, 2020
    Inventors: Sazzadur Rahman Khan, Hiep Luu
  • Light-emitting devices for wound healing
    Patent number: 10786683
    Abstract: Methods and devices related to wound healing using phototherapy are described. Some embodiments provide an organic light-emitting diode device, such as a light-emitting device for phototherapy, comprising Ring System 1, Ring System 2, Ring System 3, Ring System 4 or Ring System 5.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: September 29, 2020
    Assignees: Nitto Denko Corporation, The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc.
    Inventors: Sazzadur Rahman Khan, Sheng Li, Amane Mochizuki, Xingjia Wu, Juanita Josephine Anders
  • LIQUID CRYSTAL COMPOSITION CONTAINING A FIVE-MEMBERED HETEROCYCLIC RING, REVERSE-MODE POLYMER DISPERSED LIQUID CRYSTAL ELEMENT, AND ASSOCIATED SELECTIVELY DIMMABLE DEVICE
    Publication number: 20200017768
    Abstract: Described herein are liquid crystal compositions containing a five-member heterocyclic ring that can allow for the adjustment of their refractive indices under the application of an electric field. In addition, selectively dimmable reverse-mode polymer dispersed liquid crystal elements and devices using the aforementioned compositions are also described, which are transparent when no voltage is applied and opaque when a voltage is applied.
    Type: Application
    Filed: February 14, 2018
    Publication date: January 16, 2020
    Inventors: Sazzadur Rahman Khan, Hiep Luu
  • Liquid Crystal Composite, Liquid Crystal Element, and Associated Selectively Dimmable Device
    Publication number: 20190278115
    Abstract: Described herein are reverse-mode polymer dispersed liquid crystal (PDLC) compositions with a plurality of domains. In addition, selectively dimmable reverse-mode PDLC elements and devices using the aforementioned compositions are also described, which are transparent when no voltage is applied and opaque when a voltage is applied.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 12, 2019
    Inventors: Sazzadur Rahman Khan, Sergey Simavoryan, Peng Wang, Masanori Otsuka
  • LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL MIXTURE, REVERSE-MODE POLYMER DISPERSED LIQUID CRYSTAL ELEMENT, AND ASSOCIATED SELECTIVELY DIMMABLE DEVICE
    Publication number: 20190233728
    Abstract: Described herein are liquid crystal compositions and derivative mixtures thereof that can allow for the adjustment of their refractive indices by the application of an electric field. In addition, selectively dimmable reverse-mode polymer dispersed liquid crystal (PDLC) elements and devices using the aforementioned compositions are also described, which are transparent when no voltage is applied and opaque when a voltage is applied.
    Type: Application
    Filed: April 2, 2019
    Publication date: August 1, 2019
    Inventors: Sazzadur Rahman Khan, Hiep Luu, Ekambaram Sambandan
  • HETEROCYCLIC LIQUID CRYSTAL COMPOSITION, REVERSE-MODE POLYMER DISPERSED LIQUID CRYSTAL ELEMENT, AND ASSOCIATED SELECTIVELY DIMMABLE DEVICE
    Publication number: 20190187497
    Abstract: Described herein are heterocyclic liquid crystal compositions that can allow for the adjustment of their refractive indices by the application of an electric field, such as those described by the following formula (1) wherein R1, R2, R3, R4, R5, R6, R7, R8, X, Y are as described herein. In addition, selectively dimmable reverse-mode polymer dispersed liquid crystal (PDLC) elements and devices using the aforementioned compositions are also described, which are transparent when no voltage is applied and opaque when a voltage is applied.
    Type: Application
    Filed: August 4, 2017
    Publication date: June 20, 2019
    Inventors: Sazzadur Rahman Khan, Hiep Luu
  • PHOTOCATALYTIC ELEMENT
    Publication number: 20180280559
    Abstract: A photocatalytic element including: a photocatalytic layer containing at least one photocatalytic material; and a light emitting source in optical communication with the photocatalytic material, the light emitting source disposed sufficiently proximal to the photocatalytic material to raise the surface temperature of at least some of the photocatalytic material to a temperature between 10° C. and 90° C. is provided.
    Type: Application
    Filed: October 6, 2016
    Publication date: October 4, 2018
    Inventors: Ekambaram Sambandan, Sazzadur Rahman Khan, Takuya Fukumura, Hiroyuki Katayama
  • Polyphenylene host compounds
    Patent number: 9548458
    Abstract: Polyphenylene compounds such as compounds represented by Formula 1 may be used in electronic devices such as organic light-emitting devices. For example, the compounds may be used as host materials in a light-emitting layer.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: January 17, 2017
    Assignee: NITTO DENKO CORPORATION
    Inventors: Shijun Zheng, Liping Ma, Amane Mochizuki, Qianxi Lai, Sazzadur Rahman Khan, Sheng Li, Brett T. Harding, Hyunsik Chae, Rebecca Romero, David T. Sisk
  • Phototherapy Devices and Methods Comprising Optionally Substituted Quinquiesphenyl Compounds
    Publication number: 20160325113
    Abstract: Methods and devices related to the treatment of diseases using phototherapy are described. Some embodiments provide an organic light-emitting diode device, such as a light-emitting device for phototherapy, comprising Ring System 1, Ring System 2, Ring System 3, Ring System 4 or Ring System 5. Methods of treating disease with phototherapy are also described.
    Type: Application
    Filed: July 18, 2016
    Publication date: November 10, 2016
    Inventors: Sazzadur Rahman Khan, Shijun Zheng, Sheng Li, Amane Mochizuki, Keisaku Okada
  • Light-Emitting Devices for Wound Healing
    Publication number: 20160236007
    Abstract: Methods and devices related to wound healing using phototherapy are described. Some embodiments provide an organic light-emitting diode device, such as a light-emitting device for phototherapy, comprising Ring System 1, Ring System 2, Ring System 3, Ring System 4 or Ring System 5.
    Type: Application
    Filed: February 4, 2016
    Publication date: August 18, 2016
    Inventors: Sazzadur Rahman Khan, Sheng Li, Amane Mochizuki, Xingjia Wu, Juanita Josephine Anders
  • Compounds for use in light-emitting devices
    Patent number: 9373797
    Abstract: Included herein is the compound: and related compounds, and light-emitting devices comprising the same.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: June 21, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Shijun Zheng, Liping Ma, Amane Mochizuki, Qianxi Lai, Sazzadur Rahman Khan, Sheng Li, Brett T. Harding, Hyunsik Chae, Rebecca Romero, David T. Sisk
  • Substituted bipyridines for use in organic light-emitting devices
    Patent number: 9328086
    Abstract: Optionally substituted bipyridine compounds, optionally substituted phenylbipyridine compounds, or optionally substituted bis-phenylbipyridine compounds may be useful in light-emitting devices.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: May 3, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: David T. Sisk, Sazzadur Rahman Khan, Amane Mochizuki