Patents by Inventor Hiroki Kashiwagi

Hiroki Kashiwagi 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).

  • Patent number: 11958975
    Abstract: An asphalt composition containing asphalt and polyester, wherein a content of asphaltene in the asphalt is 18% by mass or more and 40% by mass or less, and a content of the polyester is 1 part by mass or more and 10 parts by mass or less with respect to 100 parts by mass of the asphalt.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: April 16, 2024
    Assignee: KAO CORPORATION
    Inventors: Hiroki Kakiuchi, Ryoichi Hashimoto, Hirotaka Kashiwagi
  • Patent number: 11277843
    Abstract: Provided are a frequency channel allocating section (10) that allocates frequency channels, a terminal reception quality information processing section (6) that calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section (12) that controls a level of transmit power for each subcarrier, and a determining section (10) that checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or is a limited band terminal capable of receiving only part of frequencies, and when the communicating apparatus is the limited band terminal, the transmit power of all or part of subcarriers is decreased in a frequency channel that is adjacent to a reception band allocated to the communicating apparatus and that is allocated to another communicating apparatus.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: March 15, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
  • Publication number: 20210242597
    Abstract: A communications device includes: an antenna radiating a first radio wave having a first polarization direction and a second radio wave having a second polarization direction, the first and second polarization directions being different; a casing provided with an opening through which the first radio wave and the second radio wave pass; and a cover provided to the opening and including a plurality of bars made of metal. The antenna is disposed so that neither the first polarization direction of the first radio wave nor the second polarization direction of the second wave orthogonally intersects with an extending direction of the bars.
    Type: Application
    Filed: January 15, 2021
    Publication date: August 5, 2021
    Inventors: NAOKI SOTOMA, HIROKI KASHIWAGI
  • Publication number: 20200015221
    Abstract: Provided are a frequency channel allocating section (10) that allocates frequency channels, a terminal reception quality information processing section (6) that calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section (12) that controls a level of transmit power for each subcarrier, and a determining section (10) that checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or is a limited band terminal capable of receiving only part of frequencies, and when the communicating apparatus is the limited band terminal, the transmit power of all or part of subcarriers is decreased in a frequency channel that is adjacent to a reception band allocated to the communicating apparatus and that is allocated to another communicating apparatus.
    Type: Application
    Filed: July 22, 2019
    Publication date: January 9, 2020
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: HIROKI KASHIWAGI, YASUHIRO HAMAGUCHI
  • Patent number: 10375697
    Abstract: Provided are a frequency channel allocating section (10) that allocates frequency channels, a terminal reception quality information processing section (6) that calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section (12) that controls a level of transmit power for each subcarrier, and a determining section (10) that checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or is a limited band terminal capable of receiving only part of frequencies, and when the communicating apparatus is the limited band terminal, the transmit power of all or part of subcarriers is decreased in a frequency channel that is adjacent to a reception band allocated to the communicating apparatus and that is allocated to another communicating apparatus.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: August 6, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
  • Patent number: 9832004
    Abstract: The present invention brings about an effect of reducing a deterioration in communication quality that may occur in a communication circuit that can communicate in different communication modes. A communication circuit (100) of an aspect of the present invention includes a control section (109) that (i) controls a reception filter (194) such that respective passbands of a transmission filter (103) and the reception filter (104) are different from each other in a case where a full-duplex communication is made in a FDD mode, and (ii) controls the reception filter (104) such that at least part of the passband of the transmission filter (103) and at least part of the passband of the reception filter (104) overlap each other in a case where a full-duplex communication is made in a TDD mode.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: November 28, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takeshi Wada, Hiroki Kashiwagi
  • Publication number: 20160352495
    Abstract: The present invention brings about an effect of reducing a deterioration in communication quality that may occur in a communication circuit that can communicate in different communication modes. A communication circuit (100) of an aspect of the present invention includes a control section (109) that (i) controls a reception filter (194) such that respective passbands of a transmission filter (103) and the reception filter (104) are different from each other in a case where a full-duplex communication is made in a FDD mode, and (ii) controls the reception filter (104) such that at least part of the passband of the transmission filter (103) and at least part of the passband of the reception filter (104) overlap each other in a case where a full-duplex communication is made in a TDD mode.
    Type: Application
    Filed: December 24, 2014
    Publication date: December 1, 2016
    Inventors: Takeshi WADA, Hiroki KASHIWAGI
  • Publication number: 20160150521
    Abstract: Provided are a frequency channel allocating section (10) that allocates frequency channels, a terminal reception quality information processing section (6) that calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section (12) that controls a level of transmit power for each subcarrier, and a determining section (10) that checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or is a limited band terminal capable of receiving only part of frequencies, and when the communicating apparatus is the limited band terminal, the transmit power of all or part of subcarriers is decreased in a frequency channel that is adjacent to a reception band allocated to the communicating apparatus and that is allocated to another communicating apparatus.
    Type: Application
    Filed: January 28, 2016
    Publication date: May 26, 2016
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: HIROKI KASHIWAGI, YASUHIRO HAMAGUCHI
  • Patent number: 9295067
    Abstract: [Object] To implement wireless communication also with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: March 22, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
  • Patent number: 9203531
    Abstract: A wireless circuit (100) which is capable of simultaneously outputting a plurality of transmission signals, including: a transmission signal selection circuit (31) which selectively outputs a detecting object signal out of a plurality of transmission signals; and a detection circuit (33) which detects a power of the detecting object signal thus outputted. This enables to provide, by use of a compact configuration, a technique for individually detecting transmission signals which are simultaneously generated by a respective plurality of transmission circuits.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: December 1, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hideaki Shinmei, Hiroki Kashiwagi, Shoichi Shitara, Kazuhiko Ikehata, Masamori Tokuda
  • Publication number: 20150326325
    Abstract: A wireless circuit (100) which is capable of simultaneously outputting a plurality of transmission signals, including: a transmission signal selection circuit (31) which selectively outputs a detecting object signal out of a plurality of transmission signals; and a detection circuit (33) which detects a power of the detecting object signal thus outputted. This enables to provide, by use of a compact configuration, a technique for individually detecting transmission signals which are simultaneously generated by a respective plurality of transmission circuits.
    Type: Application
    Filed: September 26, 2013
    Publication date: November 12, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hideaki SHINMEI, Hiroki KASHIWAGI, Shoichi SHITARA, Kazuhiko IKEHATA, Masamori TOKUDA
  • Patent number: 8355391
    Abstract: Wireless communication with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies. A frequency channel allocating section allocates frequency channels, a terminal reception quality information processing section calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section controls a level of transmit power for each subcarrier, and a determining section checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or a limited band terminal capable of receiving only part of frequencies.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: January 15, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
  • Patent number: 8351414
    Abstract: Wireless communication with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies. A frequency channel allocating section allocates frequency channels, a terminal reception quality information processing section calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section controls a level of transmit power for each subcarrier, and a determining section checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or a limited band terminal capable of receiving only part of frequencies.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: January 8, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
  • Patent number: 8335478
    Abstract: Provided are a first filter 63a and a second filter 63b each having a pass band in the range of a frequency band that is obtained by, for example, substantially bisecting a frequency band of f1 to f4. In that case, the regions of the first filter 63a and the second filter 63b partially overlap with each other with the center frequency f5 interposed therebetween. In practice, even if the division is not bisection, a configuration is adopted in which a frequency region of the wider band (the first frequency band 61a) closer to a second frequency band 61b side is covered by the second filter 63b. Accordingly, it is possible to suppress the influence of load fluctuation in a multiband-compatible radio communication device.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: December 18, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hiroki Kashiwagi
  • Patent number: 8279809
    Abstract: Wireless communication with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies. A frequency channel allocating section allocates frequency channels, a terminal reception quality information processing section calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section controls a level of transmit power for each subcarrier, and a determining section checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or a limited band terminal capable of receiving only part of frequencies.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: October 2, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
  • Publication number: 20120113923
    Abstract: Wireless communication with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies. A frequency channel allocating section allocates frequency channels, a terminal reception quality information processing section calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section controls a level of transmit power for each subcarrier, and a determining section checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or a limited band terminal capable of receiving only part of frequencies.
    Type: Application
    Filed: December 27, 2011
    Publication date: May 10, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hiroki KASHIWAGI, Yasuhiro HAMAGUCHI
  • Publication number: 20120113924
    Abstract: Wireless communication with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies. A frequency channel allocating section allocates frequency channels, a terminal reception quality information processing section calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section controls a level of transmit power for each subcarrier, and a determining section checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or a limited band terminal capable of receiving only part of frequencies.
    Type: Application
    Filed: December 27, 2011
    Publication date: May 10, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hiroki KASHIWAGI, Yasuhiro HAMAGUCHI
  • Publication number: 20120082254
    Abstract: Wireless communication with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies. A frequency channel allocating section allocates frequency channels, a terminal reception quality information processing section calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section controls a level of transmit power for each subcarrier, and a determining section checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or a limited band terminal capable of receiving only part of frequencies.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 5, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hiroki KASHIWAGI, Yasuhiro HAMAGUCHI
  • Patent number: 8150442
    Abstract: [Object] To implement wireless communication also with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: April 3, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
  • Publication number: 20110110356
    Abstract: To implement wireless communication also with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies.
    Type: Application
    Filed: January 4, 2011
    Publication date: May 12, 2011
    Inventors: Hiroki KASHIWAGI, Yasuhiro HAMAGUCHI