Patents by Inventor Yasumitsu Ban
Yasumitsu Ban 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: 11942700Abstract: An antenna apparatus includes a ground substrate, a feeding point provided on the ground substrate, a first loop antenna of which one end is electrically connected to the feeding point and of which another end is electrically connected to the ground substrate and moreover which operates at a first frequency, and a second loop antenna of which both ends are respectively connected to a first end point and a second end point of the first loop antenna and which operates at a second frequency. A space between the first end point and the second end point forms a gap with a range in which the first loop antenna is capable of resonating at the first frequency.Type: GrantFiled: April 21, 2022Date of Patent: March 26, 2024Assignee: FCNT LIMITEDInventors: Takahiro Shinojima, Yohei Koga, Satoshi Sakita, Tabito Tonooka, Yasumitsu Ban, Manabu Yoshikawa
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Publication number: 20230098428Abstract: An antenna device includes a first antenna having a length corresponding to a first frequency, and arranged along a ground, a second antenna formed by a slot penetrating metal constituting the first antenna, and having a slot length corresponding to a second frequency higher than the first frequency, a first feeder wire for the first frequency, connected from the ground to the first antenna, a metal element for electromagnetic field coupling, arranged in a non-contact state relative to the second antenna, between the slot and the ground; and a second feeder wire for the second frequency, connected from the ground to the metal element.Type: ApplicationFiled: December 6, 2022Publication date: March 30, 2023Applicant: FCNT LIMITEDInventors: Yohei Koga, Yasumitsu Ban, Manabu Yoshikawa
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Publication number: 20220247080Abstract: An antenna apparatus includes a ground substrate, a feeding point provided on the ground substrate, a first loop antenna of which one end is electrically connected to the feeding point and of which another end is electrically connected to the ground substrate and moreover which operates at a first frequency, and a second loop antenna of which both ends are respectively connected to a first end point and a second end point of the first loop antenna and which operates at a second frequency. A space between the first end point and the second end point forms a gap with a range in which the first loop antenna is capable of resonating at the first frequency.Type: ApplicationFiled: April 21, 2022Publication date: August 4, 2022Applicant: FCNT LIMITEDInventors: Takahiro Shinojima, Yohei Koga, Satoshi Sakita, Tabito Tonooka, Yasumitsu Ban, Manabu Yoshikawa
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Publication number: 20220239006Abstract: An antenna apparatus includes a ground substrate, a feeding point provided on the ground substrate, a first conductor device of which one end is electrically connected to the feeding point and which has a plate shape being parallel to the ground substrate, a second conductor device which is arranged between the first conductor device and the ground substrate, of which one end is electrically connected to the ground substrate, and which has a plate shape being parallel to the ground substrate and a connecting portion which electrically connects another end of the first conductor device and another end of the second conductor device to each other. A width of the first conductor device is wider than a width of the second conductor device. Lengths of the first conductor device and the second conductor device are ½ of a wavelength of a radio wave for operating the antenna apparatus.Type: ApplicationFiled: April 12, 2022Publication date: July 28, 2022Applicant: FCNT LIMITEDInventors: Yohei Koga, Tabito Tonooka, Satoshi Sakita, Yasumitsu Ban, Manabu Yoshikawa, Takahiro Shinojima
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Patent number: 11201408Abstract: A non-transitory computer-readable recording medium having stored therein a program that, when a processor coupled to a memory and the processor is configured to execute the program, causes the processor configured to: store, in the memory, a design data of a metal member disposed around the patch antenna having a ground conductor and an antenna element having a power feeding point, and a positional relationship between the metal member and the patch antenna; and determine a relative position between the power feeding point and the metal member so that a center point and the power feeding point of the patch antenna in plan view are located on a perpendicular line to a surface of the metal member on the patch antenna side based on the design data of the metal member and the positional relationship stored in the memory.Type: GrantFiled: November 4, 2019Date of Patent: December 14, 2021Assignee: FUJITSU LIMITEDInventors: Yasumitsu Ban, Manabu Yoshikawa, Yohei Koga
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Publication number: 20210273332Abstract: An electromagnetic wave control device that controls a directionality of radio waves emitted by an antenna, the electromagnetic wave control device includes: a reflector arranged on a side opposite to an emission side of the radio waves of the antenna; and a conductor plate that is arranged on the emission side of the radio waves of the antenna and on which a conductor is formed, wherein in the conductor plate, a plurality of holes formed by opening the conductor is provided in a grid pattern, and has an inner edge length with which the hole positioned at the center resonates in correspondence with one wavelength of a communication wavelength, and the inner edge length of the hole is formed to be longer as going outward from the center.Type: ApplicationFiled: May 18, 2021Publication date: September 2, 2021Applicant: FUJITSU LIMITEDInventors: Yohei Koga, Yasumitsu BAN, Takashi YAMAGAJO, Manabu Yoshikawa, HARUHIKO HORIZOE
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Patent number: 10847891Abstract: An antenna device includes a ground plane, and an antenna element formed on a first surface of the ground plane, the antenna element including a feed point, a first line extending from the feed point to a first end in a direction away from the first surface, a second line extending along the first surface of the ground plane from the first end of the first line to a second end, and a third line extending along the first surface of the ground plane from the second end of the second line to a third end in a direction different in plan view from an extending direction of the second line.Type: GrantFiled: December 20, 2018Date of Patent: November 24, 2020Assignee: FUJITSU LIMITEDInventors: Yasumitsu Ban, Yohei Koga
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Patent number: 10790588Abstract: A loop antenna includes: a substrate; a first conductor which is provided on a first surface of the substrate, is conductive and is grounded; a second conductor which is formed as a loop to surround the substrate along a surface orthogonal to the first surface, is conductive, is fed on a second surface of the substrate, which is opposite to the first surface, and is electrically connected to the first conductor; and a third conductor which is provided on at least one side surface of the substrate, which intersects the surface on which the second conductor is formed as a loop, is conductive and is electrically connected to the first conductor.Type: GrantFiled: November 9, 2017Date of Patent: September 29, 2020Assignee: FUJITSU LIMITEDInventor: Yasumitsu Ban
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Publication number: 20200194895Abstract: A non-transitory computer-readable recording medium having stored therein a program that, when a processor coupled to a memory and the processor is configured to execute the program, causes the processor configured to: store, in the memory, a design data of a metal member disposed around the patch antenna having a ground conductor and an antenna element having a power feeding point, and a positional relationship between the metal member and the patch antenna; and determine a relative position between the power feeding point and the metal member so that a center point and the power feeding point of the patch antenna in plan view are located on a perpendicular line to a surface of the metal member on the patch antenna side based on the design data of the metal member and the positional relationship stored in the memory.Type: ApplicationFiled: November 4, 2019Publication date: June 18, 2020Applicant: FUJITSU LIMITEDInventors: Yasumitsu Ban, Manabu Yoshikawa, Yohei Koga
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Patent number: 10498020Abstract: An antenna includes, a radiation conductor that is fed by one end, has another end serving as an opened end, and emits or receives radio waves, a first grounding conductor that is installed at the one end side of the radiation conductor and is grounded, a second grounding conductor that is electrically coupled with the first grounding conductor and is formed in a cylindrical shape around the radiation conductor with an elongation direction of the radiation conductor as an axial direction. At least one of the first grounding conductor and the second grounding conductor is electric-field coupled with a conductor where the antenna is installed.Type: GrantFiled: August 24, 2018Date of Patent: December 3, 2019Assignee: FUJITSU LIMITEDInventors: Yasumitsu Ban, Manabu Kai
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Patent number: 10452808Abstract: A non-transitory computer-readable storage medium storing an antenna design program that causes a computer to execute a process, the process including acquiring a target characteristic value of a target antenna when a value of a structure parameter is a predetermined value, based on the predetermined value of the structure parameter, the target characteristic value, and a relation, with respect to a reference antenna, between a value of a structure parameter and a characteristic value, estimating the relation with respect to the target antenna, the reference antenna having a same shape feature as the target antenna, an antenna type of the reference antenna being different from the target antenna, determining a value of the structure parameter for the target antenna such that the characteristic value of the target antenna satisfies a demanded specification based on the estimated relation, and outputting the determined value of the structure parameter.Type: GrantFiled: February 8, 2017Date of Patent: October 22, 2019Assignee: Fujitsu LimitedInventors: Yohei Koga, Manabu Kai, Takashi Yamagajo, Yasumitsu Ban, Hiroyuki Egawa, Kan Fujieda
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Publication number: 20190214733Abstract: An antenna device includes a ground plane, and an antenna element formed on a first surface of the ground plane, the antenna element including a feed point, a first line extending from the feed point to a first end in a direction away from the first surface, a second line extending along the first surface of the ground plane from the first end of the first line to a second end, and a third line extending along the first surface of the ground plane from the second end of the second line to a third end in a direction different in plan view from an extending direction of the second line.Type: ApplicationFiled: December 20, 2018Publication date: July 11, 2019Applicant: FUJITSU LIMITEDInventors: Yasumitsu BAN, Yohei KOGA
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Publication number: 20190074581Abstract: An antenna includes, a radiation conductor that is fed by one end, has another end serving as an opened end, and emits or receives radio waves, a first grounding conductor that is installed at the one end side of the radiation conductor and is grounded, a second grounding conductor that is electrically coupled with the first grounding conductor and is formed in a cylindrical shape around the radiation conductor with an elongation direction of the radiation conductor as an axial direction. At least one of the first grounding conductor and the second grounding conductor is electric-field coupled with a conductor where the antenna is installed.Type: ApplicationFiled: August 24, 2018Publication date: March 7, 2019Applicant: FUJITSU LIMITEDInventors: Yasumitsu BAN, Manabu Kai
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Publication number: 20180358703Abstract: An antenna apparatus includes: a conductive pattern formed in each of front and back surfaces of a dielectric, wherein the conductive pattern of the front surface is divided into two with a predetermined gap, and includes a feeding point in the gap, and wherein each of the conductive patterns divided into two is configured to be connected to the conductive pattern of the back surface through a connection portion with a predetermined length provided at a pair of diagonal portions.Type: ApplicationFiled: May 29, 2018Publication date: December 13, 2018Applicant: FUJITSU LIMITEDInventor: Yasumitsu BAN
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Publication number: 20180151956Abstract: A linear antenna includes a first conductor which is formed as a plate and is grounded; and a second conductor which is connected at one end to the first conductor, includes an electrical length obtained by adding ¼ of a designed wavelength to an integer multiple of a half of the designed wavelength, and includes a first section from a folding point to an another end of which the second conductor is an open end along a surface parallel to a surface on which the first conductor is formed, wherein the second conductor is fed at a feed point in the first section, and at least a part of the first section including the feed point is formed to overlap with the first conductor when the first section is projected along a normal direction of the surface on which the first conductor is formed.Type: ApplicationFiled: November 20, 2017Publication date: May 31, 2018Applicant: FUJITSU LIMITEDInventor: Yasumitsu BAN
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Publication number: 20180145410Abstract: A loop antenna includes: a substrate; a first conductor which is provided on a first surface of the substrate, is conductive and is grounded; a second conductor which is formed as a loop to surround the substrate along a surface orthogonal to the first surface, is conductive, is fed on a second surface of the substrate, which is opposite to the first surface, and is electrically connected to the first conductor; and a third conductor which is provided on at least one side surface of the substrate, which intersects the surface on which the second conductor is formed as a loop, is conductive and is electrically connected to the first conductor.Type: ApplicationFiled: November 9, 2017Publication date: May 24, 2018Applicant: FUJITSU LIMITEDInventor: Yasumitsu BAN
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Publication number: 20170235869Abstract: A non-transitory computer-readable storage medium storing an antenna design program that causes a computer to execute a process, the process including acquiring a target characteristic value of a target antenna when a value of a structure parameter is a predetermined value, based on the predetermined value of the structure parameter, the target characteristic value, and a relation, with respect to a reference antenna, between a value of a structure parameter and a characteristic value, estimating the relation with respect to the target antenna, the reference antenna having a same shape feature as the target antenna, an antenna type of the reference antenna being different from the target antenna, determining a value of the structure parameter for the target antenna such that the characteristic value of the target antenna satisfies a demanded specification based on the estimated relation, and outputting the determined value of the structure parameter.Type: ApplicationFiled: February 8, 2017Publication date: August 17, 2017Inventors: Yohei KOGA, Manabu KAI, Takashi YAMAGAJO, Yasumitsu BAN, Hiroyuki EGAWA, Kan FUJIEDA
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Publication number: 20170125880Abstract: An antenna device includes a board including an attachment face for attaching to an object, a rectangular plane antenna element arraying an layer of the board other than the attachment face, including two terminals, and having a longitudinal direction, and a planar parasitic element arraying so as to be adjacent to the plane antenna element in the longitudinal direction.Type: ApplicationFiled: October 20, 2016Publication date: May 4, 2017Applicant: FUJITSU LIMITEDInventors: Yasumitsu BAN, Manabu Kai
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Patent number: 9614284Abstract: A frequency characteristic adjusting jig attached to a loop antenna includes: a conductive first member which is located along an outer periphery of a loop for a portion of a conductor forming the loop antenna, and which is electromagnetically coupled or electrically connected to the portion of the conductor; a conductive second member which is located along the outer periphery of the loop for another portion of the conductor, and which is electromagnetically coupled or electrically connected to the other portion of the conductor; and a conductive third member which connects the first and second members together via a different path than a path formed along the loop. The first and second members are chosen to have a length along the loop such that a frequency characteristic of the loop antenna is shifted according to the length.Type: GrantFiled: July 13, 2015Date of Patent: April 4, 2017Assignee: FUJITSU LIMITEDInventors: Yasumitsu Ban, Manabu Kai
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Patent number: 9563838Abstract: A loop antenna includes first and second conductors configured to have conductivity, the first conductor including first and second patterns, the first pattern being provided along a first surface and including a first feed point, and the second pattern being coupled to the first pattern at a first end of the first surface and being provided to oppose the first pattern; and a second conductor configured to have conductivity, the second conductor including third and fourth patterns, the third pattern being provided on the first surface with a gap generating a capacitance between the first pattern and including a second feed point, the fourth pattern being electrically coupled to the third pattern at a second end opposing the first end on the first surface, the fourth pattern overlapping the second pattern so as to cause capacitive coupling or being connected to the second pattern.Type: GrantFiled: April 22, 2016Date of Patent: February 7, 2017Assignee: FUJITSU LIMITEDInventors: Yasumitsu Ban, Manabu Kai