Patents by Inventor YUUICHI MIYASHITA

YUUICHI MIYASHITA 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).

  • Heterocyclic compound for organic electroluminescent device and its application
    Patent number: 9780310
    Abstract: A novel heterocyclic compound for an organic electroluminescent device excellent in long service life and light-emitting characteristics is provided. A cyclic azine compound has at least one substituent (substituent B) selected from a specific group.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: October 3, 2017
    Assignee: TOSOH CORPORATION
    Inventors: Yuji Oka, Nobumichi Arai, Yuuichi Miyashita, Tadahiro Yotsuya, Kana Fujita, Naoki Uchida, Keisuke Nomura, Tsuyoshi Tanaka
  • Audio FM transmitter
    Patent number: 9602053
    Abstract: An audio FM transmitter is disclosed that may achieve high-precision frequency control as well as compact size and low cost by enabling FM modulation using a fractional-N type PLL circuit.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: March 21, 2017
    Assignee: Circuit Design, Inc.
    Inventors: Yukinaga Koike, Yuuichi Miyashita
  • HETEROCYCLIC COMPOUND FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ITS APPLICATION
    Publication number: 20160056388
    Abstract: A novel heterocyclic compound for an organic electroluminescent device excellent in long service life and light-emitting characteristics is provided. A cyclic azine compound has at least one substituent (substituent B) selected from a specific group.
    Type: Application
    Filed: April 18, 2014
    Publication date: February 25, 2016
    Applicant: TOSOH CORPORATION
    Inventors: Yuji OKA, Nobumichi ARAI, Yuuichi MIYASHITA, Tadahiro YOTSUYA, Kana FUJITA, Naoki UCHIDA, Keisuke NOMURA, Tsuyoshi TANAKA
  • AUDIO FM TRANSMITTER
    Publication number: 20150281841
    Abstract: [Problem to be Solved] To provide an audio FM transmitter that achieves high-precision frequency control as well as compact size and low cost by enabling FM modulation using a fractional-N type PLL circuit. [Solution] An audio FM transmitter 1 that analog FM-modulates an audio signal using a PLL modulator 8 and transmits the FM-modulated audio signal includes: the PLL modulator 8; and a controller 11 for outputting a frequency divider setting signal to the PLL modulator 8.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 1, 2015
    Inventors: YUKINAGA KOIKE, YUUICHI MIYASHITA