Patents by Inventor Hiroaki Yoshitake
Hiroaki Yoshitake 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: 11474196Abstract: A radar device includes: plural unit antennas, each including plural antenna elements configured to transmit or receive a radio wave, the plural antenna elements being aligned in a predetermined direction in a plane and connected by a transmission line. The plural unit antennas include a first unit antenna having plural antenna elements arranged asymmetrically with respect to a virtual straight line parallel to the predetermined direction, the virtual straight line passing through an antenna phase center of the first unit antenna, and a second unit antenna having plural antenna elements arranged asymmetrically with respect to a virtual straight line parallel to the predetermined direction passing through an antenna phase center of the second unit antenna. The plural antenna elements of the second unit antenna are arranged in a manner substantially symmetrical to the plural antenna elements of the first unit antenna with respect to the virtual straight line.Type: GrantFiled: March 19, 2019Date of Patent: October 18, 2022Assignee: DENSO TEN LimitedInventors: Hiromasa Sanada, Hiroaki Yoshitake, Norihisa Nishimoto
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Patent number: 11411319Abstract: An antenna apparatus according to an embodiment includes a linear feed line and a radiating element that protrudes laterally from a first side of the feed line. The radiating element is formed by a conductive pattern, and an opening pattern is located in a portion of the feed line from which the radiating element protrudes. The opening pattern extends into a portion of the radiating element.Type: GrantFiled: March 12, 2019Date of Patent: August 9, 2022Assignee: DENSO TEN LimitedInventors: Hiroaki Yoshitake, Norihisa Nishimoto
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Patent number: 10957981Abstract: An antenna device for transmitting and receiving radio waves by an antenna element formed as a conductive pattern on a substrate, and the antenna element includes: a first element part which is electrically connected to a power supply line; and two second element parts which are electrically connected to the first element part via connection lines, the connection lines being different from the power supply line.Type: GrantFiled: March 15, 2019Date of Patent: March 23, 2021Assignee: DENSO TEN LimitedInventors: Hiroaki Yoshitake, Junzoh Tsuchiya, Norihisa Nishimoto
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Patent number: 10734734Abstract: An antenna device according to an embodiment includes a main line, radiating elements, and feed lines. The radiating elements are arranged along the main line and radiate radio waves. The feed lines connect the main line and the respective radiating elements. Moreover, the feed lines are inserted into the respective radiating elements by inserted lengths so that an electrical coupling degree between one of the feed lines and corresponding one of the radiating elements is larger as the one feed line is located closer to a leading end than a base end of the main line.Type: GrantFiled: July 6, 2018Date of Patent: August 4, 2020Assignee: DENSO TEN LimitedInventor: Hiroaki Yoshitake
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Publication number: 20200058997Abstract: An antenna device for transmitting and receiving radio waves by an antenna element formed as a conductive pattern on a substrate, and the antenna element includes: a first element part which is electrically connected to a power supply line; and two second element parts which are electrically connected to the first element part via connection lines, the connection lines being different from the power supply line.Type: ApplicationFiled: March 15, 2019Publication date: February 20, 2020Applicant: DENSO TEN LimitedInventors: Hiroaki YOSHITAKE, Junzoh TSUCHIYA, Norihisa NISHIMOTO
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Publication number: 20190369207Abstract: A radar device includes: plural unit antennas, each of the plural unit antennas including plural antenna elements configured to transmit or receive a radio wave, the plural antenna elements being aligned in a predetermined direction in a plane and connected by a transmission line. The plural unit antennas include a first unit antenna, plural antenna elements of which being asymmetrically arranged with respect to a virtual straight line parallel to the predetermined direction, the virtual straight line passing through an antenna phase center of the first unit antenna, and a second unit antenna, plural antenna elements of which being asymmetrically arranged with respect to a virtual straight line parallel to the predetermined direction passing through an antenna phase center of the second unit antenna. The plural antenna elements of the second unit antenna are arranged in a manner substantially symmetrical to the plural antenna elements of the first unit antenna with respect to the virtual straight line.Type: ApplicationFiled: March 19, 2019Publication date: December 5, 2019Applicant: DENSO TEN LimitedInventors: Hiromasa SANADA, Hiroaki YOSHITAKE, Norihisa NISHIMOTO
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Publication number: 20190312357Abstract: An antenna apparatus according to an embodiment includes a linear feed line and a radiating element that protrudes laterally from a first side of the feed line. The radiating element is formed by a conductive pattern, and an opening pattern is located in a portion of the feed line from which the radiating element protrudes. The opening pattern extends into a portion of the radiating element.Type: ApplicationFiled: March 12, 2019Publication date: October 10, 2019Applicant: DENSO TEN LimitedInventors: Hiroaki YOSHITAKE, Norihisa NISHIMOTO
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Patent number: 10340605Abstract: There is provided a planar antenna device having a first antenna and a second antenna arranged on a front surface of a substrate to be set in parallel to an up and down direction. The first antenna and the second antenna are arranged such that the magnitude of the difference between the lengths of predetermined sections of the transmission line parts becomes one of a positive odd multiple of a half wavelength of the guide wavelength of electric waves which can be transmitted in the transmission line parts and a positive even multiple of a half wavelength of the guide wavelength. The predetermined sections are provided in sections from the connection parts to the antenna elements.Type: GrantFiled: February 14, 2018Date of Patent: July 2, 2019Assignee: DENSO TEN LimitedInventor: Hiroaki Yoshitake
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Publication number: 20190067832Abstract: An antenna device according to an embodiment includes a main line, radiating elements, and feed lines. The radiating elements are arranged along the main line and radiate radio waves. The feed lines connect the main line and the respective radiating elements. Moreover, the feed lines are inserted into the respective radiating elements by inserted lengths so that an electrical coupling degree between one of the feed lines and corresponding one of the radiating elements is larger as the one feed line is located closer to a leading end than a base end of the main line.Type: ApplicationFiled: July 6, 2018Publication date: February 28, 2019Applicant: DENSO TEN LimitedInventor: Hiroaki YOSHITAKE
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Publication number: 20180287265Abstract: There is provided a planar antenna device having a first antenna and a second antenna arranged on a front surface of a substrate to be set in parallel to an up and down direction. The first antenna and the second antenna are arranged such that the magnitude of the difference between the lengths of predetermined sections of the transmission line parts becomes one of a positive odd multiple of a half wavelength of the guide wavelength of electric waves which can be transmitted in the transmission line parts and a positive even multiple of a half wavelength of the guide wavelength. The predetermined sections are provided in sections from the connection parts to the antenna elements.Type: ApplicationFiled: February 14, 2018Publication date: October 4, 2018Applicant: DENSO TEN LimitedInventor: Hiroaki YOSHITAKE
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Patent number: 9972900Abstract: Provided is a distributor capable of reducing insertion loss while suppressing a ratio in power distribution among output lines from being changed. The distributor 4 is a distributor that is connected with an input line Lin and output lines Lo1 to Lo3 respectively formed on a dielectric substrate 10 as microstrip lines, and distributes to the output lines Lo1 to Lo3 high frequency power fed from a feeding point to a branching point through the input line Lin. In addition, the distributor 4 is configured to include a stub area 42 that is formed in the input line Lin, is separated from the branching point 41, and has a rectangular shape wider than line widths of a first area La and a second area Lb of the input line Lin.Type: GrantFiled: August 27, 2015Date of Patent: May 15, 2018Assignees: Fujitsu Ten Limited, Nippon Pillar Packing Co., Ltd.Inventors: Takeshi Okunaga, Akira Nakatsu, Eisuke Hayakawa, Hiroaki Yoshitake
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Patent number: 9705196Abstract: In an antenna, an antenna element interval is reduced without depending on an interval between converters, to widen the range of a phase folding angle to widen a detection angle range. The antenna includes a first antenna element including a feeder line extending from a first converter and a plurality of radiating elements. A second antenna element includes a feeder line extending from a second converter aligned together with the first converter and a plurality of radiating elements. The first and second antenna elements respectively include, at partial line portions of the feeder lines which extend from the converters to closest radiating elements, bend portions which are bent in directions which the bend portions come close to each other. The partial line portions of the first and second antenna elements are disposed so as to be linearly symmetrical about a virtual line.Type: GrantFiled: March 6, 2015Date of Patent: July 11, 2017Assignees: Nippon Pillar Packing Co., Ltd, Fujitsu Ten LimitedInventors: Takeshi Okunaga, Akira Nakatsu, Eisuke Hayakawa, Hiroaki Yoshitake
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Publication number: 20160079674Abstract: Provided is a distributor capable of reducing insertion loss while suppressing a ratio in power distribution among output lines from being changed. The distributor 4 is a distributor that is connected with an input line Lin and output lines Lo1 to Lo3 respectively formed on a dielectric substrate 10 as microstrip lines, and distributes to the output lines Lo1 to Lo3 high frequency power fed from a feeding point to a branching point through the input line Lin. In addition, the distributor 4 is configured to include a stub area 42 that is formed in the input line Lin, is separated from the branching point 41, and has a rectangular shape wider than line widths of a first area La and a second area Lb of the input line Lin.Type: ApplicationFiled: August 27, 2015Publication date: March 17, 2016Applicants: Nippon Pillar Packing Co., Ltd., Fujitsu Ten LimitedInventors: Takeshi Okunaga, Akira Nakatsu, Eisuke Hayakawa, Hiroaki Yoshitake
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Publication number: 20150255870Abstract: In an antenna, an antenna element interval is reduced without depending on an interval between converters, to widen the range of a phase folding angle to widen a detection angle range. The antenna includes a first antenna element including a feeder line extending from a first converter and a plurality of radiating elements. A second antenna element includes a feeder line extending from a second converter aligned together with the first converter and a plurality of radiating elements. The first and second antenna elements respectively include, at partial line portions of the feeder lines which extend from the converters to closest radiating elements, bend portions which are bent in directions which the bend portions come close to each other. The partial line portions of the first and second antenna elements are disposed so as to be linearly symmetrical about a virtual line.Type: ApplicationFiled: March 6, 2015Publication date: September 10, 2015Inventors: Takeshi Okunaga, Akira Nakatsu, Eisuke Hayakawa, Hiroaki Yoshitake