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).
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Patent number: 11958975Abstract: 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: GrantFiled: November 12, 2019Date of Patent: April 16, 2024Assignee: KAO CORPORATIONInventors: Hiroki Kakiuchi, Ryoichi Hashimoto, Hirotaka Kashiwagi
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Patent number: 11277843Abstract: 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: GrantFiled: July 22, 2019Date of Patent: March 15, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
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Publication number: 20210242597Abstract: 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: ApplicationFiled: January 15, 2021Publication date: August 5, 2021Inventors: NAOKI SOTOMA, HIROKI KASHIWAGI
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Publication number: 20200015221Abstract: 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: ApplicationFiled: July 22, 2019Publication date: January 9, 2020Applicant: SHARP KABUSHIKI KAISHAInventors: HIROKI KASHIWAGI, YASUHIRO HAMAGUCHI
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Patent number: 10375697Abstract: 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: GrantFiled: January 28, 2016Date of Patent: August 6, 2019Assignee: Sharp Kabushiki KaishaInventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
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Patent number: 9832004Abstract: 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: GrantFiled: December 24, 2014Date of Patent: November 28, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Takeshi Wada, Hiroki Kashiwagi
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Publication number: 20160352495Abstract: 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: ApplicationFiled: December 24, 2014Publication date: December 1, 2016Inventors: Takeshi WADA, Hiroki KASHIWAGI
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Publication number: 20160150521Abstract: 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: ApplicationFiled: January 28, 2016Publication date: May 26, 2016Applicant: SHARP KABUSHIKI KAISHAInventors: HIROKI KASHIWAGI, YASUHIRO HAMAGUCHI
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Patent number: 9295067Abstract: [Object] To implement wireless communication also with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies.Type: GrantFiled: January 4, 2011Date of Patent: March 22, 2016Assignee: Sharp Kabushiki KaishaInventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
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Patent number: 9203531Abstract: 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: GrantFiled: September 26, 2013Date of Patent: December 1, 2015Assignee: SHARP KABUSHIKI KAISHAInventors: Hideaki Shinmei, Hiroki Kashiwagi, Shoichi Shitara, Kazuhiko Ikehata, Masamori Tokuda
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Publication number: 20150326325Abstract: 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: ApplicationFiled: September 26, 2013Publication date: November 12, 2015Applicant: SHARP KABUSHIKI KAISHAInventors: Hideaki SHINMEI, Hiroki KASHIWAGI, Shoichi SHITARA, Kazuhiko IKEHATA, Masamori TOKUDA
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Patent number: 8355391Abstract: 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: GrantFiled: December 27, 2011Date of Patent: January 15, 2013Assignee: Sharp Kabushiki KaishaInventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
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Patent number: 8351414Abstract: 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: GrantFiled: December 27, 2011Date of Patent: January 8, 2013Assignee: Sharp Kabushiki KaishaInventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
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Patent number: 8335478Abstract: 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: GrantFiled: July 30, 2008Date of Patent: December 18, 2012Assignee: Sharp Kabushiki KaishaInventor: Hiroki Kashiwagi
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Patent number: 8279809Abstract: 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: GrantFiled: October 12, 2011Date of Patent: October 2, 2012Assignee: Sharp Kabushiki KaishaInventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
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Publication number: 20120113923Abstract: 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: ApplicationFiled: December 27, 2011Publication date: May 10, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Hiroki KASHIWAGI, Yasuhiro HAMAGUCHI
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Publication number: 20120113924Abstract: 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: ApplicationFiled: December 27, 2011Publication date: May 10, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Hiroki KASHIWAGI, Yasuhiro HAMAGUCHI
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Publication number: 20120082254Abstract: 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: ApplicationFiled: October 12, 2011Publication date: April 5, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Hiroki KASHIWAGI, Yasuhiro HAMAGUCHI
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Patent number: 8150442Abstract: [Object] To implement wireless communication also with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies.Type: GrantFiled: December 2, 2005Date of Patent: April 3, 2012Assignee: Sharp Kabushiki KaishaInventors: Hiroki Kashiwagi, Yasuhiro Hamaguchi
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Publication number: 20110110356Abstract: To implement wireless communication also with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies.Type: ApplicationFiled: January 4, 2011Publication date: May 12, 2011Inventors: Hiroki KASHIWAGI, Yasuhiro HAMAGUCHI