Patents by Inventor Takana Kaho

Takana Kaho 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).

  • Circuit and wireless device
    Patent number: 11201397
    Abstract: A circuit includes a first input and output terminals to which a current, a voltage, or an electromagnetic wave (referred to as “current or the like” below) is applied, a second input and output terminals to which the current or the like is applied, a first board including a matrix circuit which is formed by a first line and includes a 90-degree hybrid circuit and a delay line, the first line in which one end is connected to the first input and output terminals and a tip of the other end is opened, a second board including a second line in which one end is connected to the second input and output terminals, and a tip of the other end is opened, and a shielding plate including an opening portion.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: December 14, 2021
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takana Kaho, Doohwan Lee, Hirofumi Sasaki, Yasunori Yagi, Takashi Shimizu
  • CIRCUIT AND WIRELESS DEVICE
    Publication number: 20210044014
    Abstract: A circuit includes a first input and output terminals to which a current, a voltage, or an electromagnetic wave (referred to as “current or the like” below) is applied, a second input and output terminals to which the current or the like is applied, a first board including a matrix circuit which is formed by a first line and includes a 90-degree hybrid circuit and a delay line, the first line in which one end is connected to the first input and output terminals and a tip of the other end is opened, a second board including a second line in which one end is connected to the second input and output terminals, and a tip of the other end is opened, and a shielding plate including an opening portion.
    Type: Application
    Filed: February 26, 2019
    Publication date: February 11, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takana KAHO, Doohwan LEE, Hirofumi SASAKI, Yasunori YAGI, Takashi SHIMIZU
  • Receiver
    Patent number: 9136893
    Abstract: A receiver includes a local signal generator, a power phase adjuster, and a frequency converter so as to perform frequency conversion on signals included in a plurality of radio frequency bands. The local signal generator supplies a plurality of local signals. The power phase adjuster adjusts local signals in terms of signal power or relative phases. The frequency converter performs frequency conversion on radio frequency bands by use of local signals adjusted with the power phase adjuster, thus sorting them in a desired frequency range.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: September 15, 2015
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Takana Kaho, Yo Yamaguchi, Hiroyuki Shiba, Doohwan Lee, Takayuki Yamada, Kazunori Akabane, Kazuhiro Uehara
  • RECEIVER
    Publication number: 20120281718
    Abstract: A receiver includes a local signal generator, a power phase adjuster, and a frequency converter so as to perform frequency conversion on signals included in a plurality of radio frequency bands. The local signal generator supplies a plurality of local signals. The power phase adjuster adjusts local signals in terms of signal power or relative phases. The frequency converter performs frequency conversion on radio frequency bands by use of local signals adjusted with the power phase adjuster, thus sorting them in a desired frequency range.
    Type: Application
    Filed: January 12, 2011
    Publication date: November 8, 2012
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takana Kaho, Yo Yamaguchi, Hiroyuki Shiba, Doohwan Lee, Takayuki Yamada, Kazunori Akabane, Kazuhiro Uehara