Patents by Inventor Hisashi Takisawa
Hisashi Takisawa 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: 8487829Abstract: A shield cover is disposed so as to be opposed to a bottom plate and electromagnetic-shields a signal processing circuit mounted on a rear surface of a circuit board. The shied cover has a ceiling portion which includes a mounter vacuumed portion disposed in a center portion of the ceiling portion and vacuumed by a vacuum nozzle of a mounter, a ring-shaped outer edge disposed from an end of the side wall portion inwardly, and a plurality of beam portions joining the mounter vacuumed portion to the outer edge. An electromagnetic shielding of the signal processing unit is carried out using both of the shield cover and the bottom plate.Type: GrantFiled: June 28, 2010Date of Patent: July 16, 2013Assignee: Mitsumi Electric Co., Ltd.Inventors: Hisashi Takisawa, Takao Kato, Junichi Noro
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Patent number: 8264420Abstract: An antenna device includes an antenna module configured to receive radio waves. A plate has a plurality of first through holes. A cover is coupled with the plate to define a space accommodating the antenna module. The cover includes a rib and a side wall surrounding the antenna module. The side wall has an end face opposing the plate and formed with a plurality of threaded holes. The rib is projected from the end face. A gasket has a part formed with a plurality of openings and is disposed between the rib and the plate. A plurality of screws are respectively screwed into the threaded holes through the first through holes and the openings. At least a part of each of the screws is surrounded by an associated one of the openings.Type: GrantFiled: September 4, 2009Date of Patent: September 11, 2012Assignee: Mitsumi Electric Co., Ltd.Inventors: Kyuichi Sato, Hisashi Takisawa
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Patent number: 8223079Abstract: An antenna device includes an antenna, the antenna including an antenna element, a circuit board, and a planar metallic holder disposed between the antenna element and the circuit board. The antenna device further includes an antenna case accommodating the antenna, and the antenna case include a top cover and a bottom plate serving as a base. The metallic holder supports the antenna element on the base, and includes a flat-shaped portion mounting a bottom surface of the antenna element and a plurality of tabs extending upwards from peripheral edges of the flat-shaped portion. The plurality of tabs includes a pair of front tabs and a pair of rear tabs, and a distance between the pair of front tabs is shorter than a distance between the pair of rear tabs.Type: GrantFiled: October 13, 2009Date of Patent: July 17, 2012Assignee: Mitsumi Electric Co., Ltd.Inventors: Junichi Noro, Kyuichi Sato, Hisashi Takisawa, Toshiaki Aizawa
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Patent number: 8044871Abstract: A hybrid antenna unit includes a circuit board having top and bottom surfaces, a planer antenna element which is mounted on the top surface of the circuit board and which receives first and second radio waves, an antenna base and a top cover that cover the circuit board and the planer antenna element. A bar antenna element stands on the top cover in a slanting position. A processing unit is mounted on the bottom surface of the circuit board and is connected to the planer antenna element. The processing unit processes the first and the second radio waves. A shielding case is mounted on the bottom surface of the circuit board and shields the processing unit. A booster circuit is mounted on the circuit board and is for use in the bar antenna element.Type: GrantFiled: June 11, 2009Date of Patent: October 25, 2011Assignee: Mitsumi Electric Co., Ltd.Inventors: Hisashi Takisawa, Junichi Noro, Takao Kato, Kenichi Kamada, Kyuichi Sato
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Patent number: 8026864Abstract: An antenna element includes: an antenna plate; an antenna probe formed monolithically with the antenna plate and extending in a vertical direction from the antenna plate; a ground plate disposed in parallel to the antenna plate at a distance; and a dielectric spacer disposed between the antenna plate and the ground plate, wherein the antenna probe is bent from an edge of the antenna plate toward a center thereof.Type: GrantFiled: July 27, 2007Date of Patent: September 27, 2011Assignee: Mitsumi Electric Co., Ltd.Inventors: Junichi Noro, Hisashi Takisawa, Takao Kato
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Publication number: 20100328179Abstract: A shield cover is disposed so as to be opposed to a bottom plate and electromagnetic-shields a signal processing circuit mounted on a rear surface of a circuit board. The shied cover has a ceiling portion which includes a mounter vacuumed portion disposed in a center portion of the ceiling portion and vacuumed by a vacuum nozzle of a mounter, a ring-shaped outer edge disposed from an end of the side wall portion inwardly, and a plurality of beam portions joining the mounter vacuumed portion to the outer edge. An electromagnetic shielding of the signal processing unit is carried out using both of the shield cover and the bottom plate.Type: ApplicationFiled: June 28, 2010Publication date: December 30, 2010Applicant: Mitsumi Electric Co. Ltd.Inventors: Hisashi TAKISAWA, Takao Kato, Junichi Noro
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Publication number: 20100315305Abstract: A hybrid antenna unit includes a circuit board having top and bottom surfaces, a planer antenna element which is mounted on the top surface of the circuit board and which receives first and second radio waves, an antenna base and a top cover that cover the circuit board and the planer antenna element. A bar antenna element stands on the top cover in a slanting position. A processing unit is mounted on the bottom surface of the circuit board and is connected to the planer antenna element. The processing unit processes the first and the second radio waves. A shielding case is mounted on the bottom surface of the circuit board and shields the processing unit. A booster circuit is mounted on the circuit board and is for use in the bar antenna element.Type: ApplicationFiled: June 11, 2009Publication date: December 16, 2010Applicant: Mitsumi Electric Co., Ltd.Inventors: Hisashi TAKISAWA, Junichi NORO, Takao KATO, Kenichi KAMADA, Kyuichi SATO
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Publication number: 20100117912Abstract: An antenna includes an antenna element, a circuit board, and a planer metallic holder disposed between the antenna element and the circuit board. The metallic holder supports the antenna element on a base.Type: ApplicationFiled: October 13, 2009Publication date: May 13, 2010Applicant: Mitsumi Electric Co. Ltd.Inventors: Junichi Noro, Kyuichi Sato, Hisashi Takisawa, Toshiaki Aizawa
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Patent number: 7710334Abstract: A complex antenna device includes: an antenna base having a main surface and first and second ends opposed to each other; a bar antenna including a metal body and disposed upright on a side of the first end of the antenna base; at least one planar antenna mounted on the main surface of the antenna base between the first and second ends of the antenna base; a metallic member provided on a side of the second end of the antenna base so as to substantially remove physical influence of the bar antenna on the planar antenna.Type: GrantFiled: July 27, 2007Date of Patent: May 4, 2010Assignee: Mitsumi Electric Co., Ltd.Inventors: Junichi Noro, Hisashi Takisawa, Naoto Kondo, Yuichi Saito, Toshiaki Aizawa
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Publication number: 20100090923Abstract: An antenna device includes an antenna module configured to receive radio waves. A plate has a plurality of first through holes. A cover is coupled with the plate to define a space accommodating the antenna module. The cover includes a rib and a side wall surrounding the antenna module. The side wall has an end face opposing the plate and formed with a plurality of threaded holes. The rib is projected from the end face. A gasket has a part formed with a plurality of openings and is disposed between the rib and the plate. A plurality of screws are respectively screwed into the threaded holes through the first through holes and the openings. At least a part of each of the screws is surrounded by an associated one of the openings.Type: ApplicationFiled: September 4, 2009Publication date: April 15, 2010Inventors: Kyuichi Sato, Hisashi Takisawa
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Patent number: 7646345Abstract: A hinge portion is formed on the base portion. An antenna portion is attached to the hinge portion so as to be pivotable thereabout. The hinge portion includes a hinge base having a first shaft formed on one end thereof, a second shaft formed on the other end thereof, and a first protrusion formed on an outer periphery of the second shaft, and a hinge bush rotatably mounted on the first shaft and engaged with the antenna portion. The antenna portion is formed with a hole surrounding the outer periphery of the second shaft. A projection is formed on an inner periphery of the hole. The first protrusion is brought into contact with the projection when the antenna portion is pivoted so as to define a predetermined angle with respect to the base portion.Type: GrantFiled: May 1, 2008Date of Patent: January 12, 2010Assignee: Mitsumi Electric Co., Ltd.Inventors: Hisashi Takisawa, Junichi Noro, Kyuichi Sato, Takao Kato, Arata Togashi
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Patent number: 7567214Abstract: A hinge portion is formed on the base portion. An antenna portion is attached to the hinge portion so as to be pivotable thereabout. The hinge portion includes a hinge base having a first shaft formed on one end thereof, a second shaft formed on the other end thereof, and a first protrusion formed on an outer periphery of the second shaft, and a hinge bush rotatably mounted on the first shaft and engaged with the antenna portion. The antenna portion is formed with a hole surrounding the outer periphery of the second shaft. A projection is formed on an inner periphery of the hole. The first protrusion is brought into contact with the projection when the antenna portion is pivoted so as to define a predetermined angle with respect to the base portion.Type: GrantFiled: May 1, 2008Date of Patent: July 28, 2009Assignee: Mitsumi Electric Co., Ltd.Inventors: Hisashi Takisawa, Junichi Noro, Kyuichi Sato, Takao Kato, Arata Togashi
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Publication number: 20090002256Abstract: A hinge portion is formed on the base portion. An antenna portion is attached to the hinge portion so as to be pivotable thereabout. The hinge portion includes a hinge base having a first shaft formed on one end thereof, a second shaft formed on the other end thereof, and a first protrusion formed on an outer periphery of the second shaft, and a hinge bush rotatably mounted on the first shaft and engaged with the antenna portion. The antenna portion is formed with a hole surrounding the outer periphery of the second shaft. A projection is formed on an inner periphery of the hole. The first protrusion is brought into contact with the projection when the antenna portion is pivoted so as to define a predetermined angle with respect to the base portion.Type: ApplicationFiled: May 1, 2008Publication date: January 1, 2009Inventors: Hisashi Takisawa, Junichj Noro, Kyuichi Sato, Takao Kato, Arata Togashi
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Publication number: 20080266184Abstract: A hinge portion is formed on the base portion. An antenna portion is attached to the hinge portion so as to be pivotable thereabout. The hinge portion includes a hinge base having a first shaft formed on one end thereof, a second shaft formed on the other end thereof, and a first protrusion formed on an outer periphery of the second shaft, and a hinge bush rotatably mounted on the first shaft and engaged with the antenna portion. The antenna portion is formed with a hole surrounding the outer periphery of the second shaft. A projection is formed on an inner periphery of the hole. The first protrusion is brought into contact with the projection when the antenna portion is pivoted so as to define a predetermined angle with respect to the base portion.Type: ApplicationFiled: May 1, 2008Publication date: October 30, 2008Inventors: Hisashi Takisawa, Junichi Noro, Kyuichi Sato, Takao Kato, Arata Togashi
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Patent number: 7436366Abstract: A hinge portion is formed on the base portion. An antenna portion is attached to the hinge portion so as to be pivotable thereabout. The hinge portion includes a hinge base having a first shaft formed on one end thereof, a second shaft formed on the other end thereof, and a first protrusion formed on an outer periphery of the second shaft, and a hinge bush rotatably mounted on the first shaft and engaged with the antenna portion. The antenna portion is formed with a hole surrounding the outer periphery of the second shaft. A projection is formed on an inner periphery of the hole. The first protrusion is brought into contact with the projection when the antenna portion is pivoted so as to define a predetermined angle with respect to the base portion.Type: GrantFiled: December 28, 2006Date of Patent: October 14, 2008Assignee: Mitsumi Electric Co., Ltd.Inventors: Hisashi Takisawa, Junichi Noro, Kyuichi Sato, Takao Kato, Arata Togashi
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Patent number: D580420Type: GrantFiled: May 5, 2008Date of Patent: November 11, 2008Assignee: Mitsumi Electric Co., LtdInventors: Hisashi Takisawa, Toshiaki Aizawa, Junichi Noro, Takao Kato
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Patent number: D581910Type: GrantFiled: May 5, 2008Date of Patent: December 2, 2008Assignee: Mitsumi Electric Co., LtdInventors: Hisashi Takisawa, Toshiaki Aizawa, Junichi Noro, Takao Kato
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Patent number: D582400Type: GrantFiled: May 5, 2008Date of Patent: December 9, 2008Assignee: Mitsumi Electric Co., LtdInventors: Hisashi Takisawa, Toshiaki Aizawa, Junichi Noro, Takao Kato
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Patent number: D582905Type: GrantFiled: May 5, 2008Date of Patent: December 16, 2008Assignee: Mitsumi Electric Co., Ltd.Inventors: Hisashi Takisawa, Toshiaki Aizawa, Junichi Noro, Takao Kato
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Patent number: D603382Type: GrantFiled: May 5, 2008Date of Patent: November 3, 2009Assignee: Mitsumi Electric Co., LtdInventors: Hisashi Takisawa, Toshiaki Aizawa, Junichi Noro, Takao Kato