Patents by Inventor Atsushi Fujita
Atsushi Fujita 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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Publication number: 20210180990Abstract: A method of position estimation including: a signal detection step in which N (where N is an integer of 3 or more) sensors each detect a magnetic field which is in accordance with a position of a mover and output a detection signal as an electrical signal, the detection signals being displaced in phase by an angle obtained by dividing 360 degrees by N; a crossing detection step in which a crossing detection section sequentially detects a crossing at which each detection signal having been output through the signal detection step crosses another; a subdivision detection step in which a subdivision detection section detects a portion of the detection signal that connects from a crossing to another crossing which is adjacent to that crossing, as one or more subdivision signals; and a line segment joining step in which a line segment joining section sequentially joins the subdivision signals and estimates the position of the mover based on the plural subdivision signals having been joined, to generate an estimateType: ApplicationFiled: February 26, 2021Publication date: June 17, 2021Inventors: Tomohiro FUKUMURA, Atsushi FUJITA, Shota ISHIGAMI
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Publication number: 20210180989Abstract: A method of position estimation including: a signal detection step in which N (where N is an integer of 3 or more) sensors each detect a magnetic field which is in accordance with a position of a mover and output a detection signal as an electrical signal, the detection signals being displaced in phase by an angle obtained by dividing 360 degrees by N; a crossing detection step in which a crossing detection section sequentially detects a crossing at which each detection signal having been output through the signal detection step crosses another; a subdivision detection step in which a subdivision detection section detects a portion of the detection signal that connects from a crossing to another crossing which is adjacent to that crossing, as one or more subdivision signals; and a line segment joining step in which a line segment joining section sequentially joins the subdivision signals and estimates the position of the mover based on the plural subdivision signals having been joined, to generate an estimateType: ApplicationFiled: February 26, 2021Publication date: June 17, 2021Inventors: Tomohiro FUKUMURA, Atsushi FUJITA, Shota ISHIGAMI
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Patent number: 10976182Abstract: A method of position estimation including: a signal detection step in which N (where N is an integer of 3 or more) sensors each detect a magnetic field which is in accordance with a position of a mover and output a detection signal as an electrical signal, the detection signals being displaced in phase by an angle obtained by dividing 360 degrees by N; a crossing detection step in which a crossing detection section sequentially detects a crossing at which each detection signal having been output through the signal detection step crosses another; a subdivision detection step in which a subdivision detection section detects a portion of the detection signal that connects from a crossing to another crossing which is adjacent to that crossing, as one or more subdivision signals; and a line segment joining step in which a line segment joining section sequentially joins the subdivision signals and estimates the position of the mover based on the plural subdivision signals having been joined, to generate an estimateType: GrantFiled: December 18, 2015Date of Patent: April 13, 2021Assignee: NIDEC CORPORATIONInventors: Tomohiro Fukumura, Atsushi Fujita, Shota Ishigami
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Patent number: 10979632Abstract: An imaging apparatus includes an imaging unit configured to capture an image, a generation unit configured to combine images to generate a panoramic image of a wider range than an imaging range of each image based on a plurality of images captured by the imaging unit while an imaging direction is being changed, a storage unit configured to store the panoramic image generated by the generation unit, and a detection unit configured to compare an image captured by the imaging unit and the generated panoramic image, and detect a change in a scene based on a comparison result.Type: GrantFiled: May 15, 2019Date of Patent: April 13, 2021Assignee: Canon Kabushiki KaishaInventor: Atsushi Fujita
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Publication number: 20210058544Abstract: An image capture apparatus that detects, from an image, a subject area and a characteristic area within the subject area is disclosed. The image capture apparatus sets an AF area to the characteristic area and detects a defocus amount for the AF area and defocus amounts for peripheral areas of the AF area. The image capture apparatus corrects the defocus amount detected for the AF area based on the defocus amounts detected for the peripheral areas and adjusts focus of an imaging optical system based on the corrected defocus amount.Type: ApplicationFiled: August 18, 2020Publication date: February 25, 2021Inventor: Atsushi Fujita
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Publication number: 20210027026Abstract: Provided are a model training method for neural machine translation that enhances an encoder using a monolingual corpus of a target language and improves the accuracy of the entire translator, and a machine translation system for performing the model training method. The machine translation system 1000 uses a monolingual corpus of the target language to obtain multiple pieces of pseudo source language data, thus allowing for obtaining a large amount of pseudo parallel corpus data having diversity. Further, the machine translation system 1000 uses both the pseudo parallel corpus data having diversity, which has been obtained in large quantities, and the base parallel corpus data in a small quantity but with high accuracy, with the applied learning rates changed accordingly, to perform the learning process (training process) for the machine translation model. This allows the machine translation system 1000 to obtain a learned model (machine translation model) with very high accuracy.Type: ApplicationFiled: February 12, 2019Publication date: January 28, 2021Inventors: Kenji IMAMURA, Atsushi FUJITA, Eiichiro SUMITA
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Publication number: 20210003422Abstract: A position estimation method of the present disclosure includes: acquiring learning data from a storage medium that stores the learning data including a sequence of a plurality of measurement values which define a waveform characteristic of a first electrical signal output from a sensor device when a rotor R is rotating; acquiring a sequence of a plurality of detection values which define a waveform characteristic of a second electrical signal output from the sensor device when the rotor starts rotating from a stopped state; and performing matching between an increase/decrease pattern of the sequence of the plurality of measurement values and an increase/decrease pattern of the sequence of the plurality of detection values to estimate a relationship between a rotation position of the rotor when the first electrical signal is output and a rotation position of the rotor when the second electrical signal is output.Type: ApplicationFiled: February 20, 2019Publication date: January 7, 2021Inventors: Shota ISHIGAMI, Atsushi FUJITA
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Patent number: 10703275Abstract: An image generation apparatus includes an image processor and a detector. The image processor generates a composite image viewed from at least one virtual viewpoint, and outputs the generated composite image to a display. The detector detects an indication of a driver intention to drive the host vehicle to a right or to a left relative to a travelling direction of the host vehicle. The image processor generates the composite image viewed from a virtual viewpoint located in front of the host vehicle in the travelling direction, the composite image showing a lateral surface of the host vehicle on a side corresponding to the detected indication of the driver intention. Thus, it is possible to make it easier to check a situation at a time of a right turn, a left turn, or a travelling direction change.Type: GrantFiled: April 20, 2017Date of Patent: July 7, 2020Assignee: DENSO TEN LimitedInventor: Atsushi Fujita
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Patent number: 10689198Abstract: A conveyor apparatus includes an endless conveyor belt wound around outgoing path side guide pulleys in turn along a helical conveyance path in a bent state where the belt is folded in two in a width direction such that an upper edge portion thereof is supported by the outgoing path side guide pulleys, and wound around returning path side guide pulleys in turn along the helical conveyance path in the bent state where the belt is folded in two in the width direction such that the upper edge portion is supported by the returning path side guide pulleys, and folded back at each turning positions of a horizontal conveyance unit located at an upper side and a horizontal conveyance unit located at a lower side of the support frame and being in an expanded state where the belt expanded in the width direction in a vicinity of the turning position.Type: GrantFiled: June 28, 2017Date of Patent: June 23, 2020Assignees: Furukawa Industrial Machinery Systems Co., Ltd., Bando Chemical Industries, Ltd.Inventors: Hiromi Katamata, Tsuyoshi Kitazawa, Ayumu Yokomaku, Akihisa Fujikake, Atsushi Fujita
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Patent number: 10633736Abstract: A film formation apparatus includes a carrying unit circulating and carrying an electronic component in a sputtering chamber, a film formation processing unit including a mount surface and a mount member which is mounted on the mount surface, and on which the electronic component is placed. The mount member includes a holding sheet having an adhesive surface, and a non-adhesive surface, and a sticking sheet having a first sticking surface with adhesiveness sticking to the non-adhesive surface, and a second sticking surface with adhesiveness sticking to the mount surface of the tray. The adhesive surface includes a pasting region for pasting the electronic components. The first sticking surface sticks across an entire region of the non-adhesive surface corresponding to at least the pasting region to provide a file formation apparatus which employs a simple structure that is capable of suppressing heating of electronic components.Type: GrantFiled: December 12, 2017Date of Patent: April 28, 2020Assignee: SHIBAURA MECHATRONICS CORPORATIONInventors: Akihiko Ito, Yoshinao Kamo, Shigeki Matsunaka, Atsushi Fujita
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Patent number: 10557029Abstract: An automotive interior and exterior member having high heat, impact, and weather resistance is provided. The automotive interior and exterior member is made of a thermoplastic resin composition containing a specific polycarbonate resin, butyl acrylate-methyl methacrylate-styrene based rubber, a specific hindered phenol based antioxidant, dibutylhydroxytoluene, 1,1,3-tris-(2-methyl-4-hydroxy-5-t-butylphenyl) butane, tris (2,4-di-t-butylphenyl) phosphite, bis (2,4-di-t-butylphenyl) pentaerythritol-diphosphite, a specific benzotriazole based weathering stabilizer, a specific hindered amine based weathering stabilizer, and a specific perinone based colorant.Type: GrantFiled: July 19, 2018Date of Patent: February 11, 2020Assignee: MAZDA MOTOR CORPORATIONInventors: Yohei Ichihara, Atsushi Fujita
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Patent number: 10505478Abstract: In one implementation, a motor module according to the present invention includes: a motor driving circuit 10 to drive a motor M; and a position estimation device 30 to output an estimated position signal of a rotor R of the motor M. It also includes: a motor control circuit 20 to supply a command voltage value to the motor driving circuit 10 in response to a pulse signal; and a variable step-size memory 40 storing variable step-size information, which defines an amount of displacement of the rotor R per pulse of the pulse signal. The estimated position signal is an analog or digital signal. Upon receiving a pulse signal, the motor control circuit 20 determines the command voltage value based on an estimated position value of the rotor R acquired from the position estimation device 30 and the variable step-size information read from the variable step-size memory 40. The motor driving circuit 10 changes the position of the rotor R based on the command voltage value.Type: GrantFiled: February 27, 2017Date of Patent: December 10, 2019Assignee: NIDEC CORPORATIONInventors: Atsushi Fujita, Shota Ishigami, Tomohiro Fukumura
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Publication number: 20190373170Abstract: An imaging apparatus includes an imaging unit configured to capture an image, a generation unit configured to combine images to generate a panoramic image of a wider range than an imaging range of each image based on a plurality of images captured by the imaging unit while an imaging direction is being changed, a storage unit configured to store the panoramic image generated by the generation unit, and a detection unit configured to compare an image captured by the imaging unit and the generated panoramic image, and detect a change in a scene based on a comparison result.Type: ApplicationFiled: May 15, 2019Publication date: December 5, 2019Inventor: Atsushi Fujita
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Patent number: 10368008Abstract: An imaging apparatus is provided which allows acquisition of a plurality of images in response to one instruction to generate images without requiring a user to perform complicated setting operations and advanced knowledge. A control unit in the imaging apparatus selects a photographing parameter to be changed for the auto bracketing from a plurality of photographing parameters based on a result of analysis on an image captured in advance by the imaging unit and sets a variance range of values of the selected photographing parameters based on a category instructed by a user.Type: GrantFiled: June 9, 2014Date of Patent: July 30, 2019Assignee: Canon Kabushiki KaishaInventor: Atsushi Fujita
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Publication number: 20190222152Abstract: In one implementation, a motor module according to the present invention includes: a motor driving circuit 10 to drive a motor M; and a position estimation device 30 to output an estimated position signal of a rotor R of the motor M. It also includes: a motor control circuit 20 to supply a command voltage value to the motor driving circuit 10 in response to a pulse signal; and a variable step-size memory 40 storing variable step-size information, which defines an amount of displacement of the rotor R per pulse of the pulse signal. The estimated position signal is an analog or digital signal. Upon receiving a pulse signal, the motor control circuit 20 determines the command voltage value based on an estimated position value of the rotor R acquired from the position estimation device 30 and the variable step-size information read from the variable step-size memory 40. The motor driving circuit 10 changes the position of the rotor R based on the command voltage value.Type: ApplicationFiled: February 27, 2017Publication date: July 18, 2019Inventors: Atsushi FUJITA, Shota ISHIGAMI, Tomohiro FUKUMURA
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Publication number: 20190161278Abstract: A conveyor apparatus includes an endless conveyor belt wound around outgoing path side guide pulleys in turn along a helical conveyance path in a bent state where the belt is folded in two in a width direction such that an upper edge portion thereof is supported by the outgoing path side guide pulleys, and wound around returning path side guide pulleys in turn along the helical conveyance path in the bent state where the belt is folded in two in the width direction such that the upper edge portion is supported by the returning path side guide pulleys, and folded back at each turning positions of a horizontal conveyance unit located at an upper side and a horizontal conveyance unit located at a lower side of the support frame and being in an expanded state where the belt expanded in the width direction in a vicinity of the turning position.Type: ApplicationFiled: June 28, 2017Publication date: May 30, 2019Applicants: Furukawa Industrial Machinery Systems Co., Ltd., Bando Chemical Industries, Ltd.Inventors: Hiromi Katamata, Tsuyoshi Kitazawa, Ayumu Yokomaku, Akihisa Fujikake, Atsushi Fujita
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Patent number: 10244670Abstract: An electronic component, an electronic component manufacturing apparatus, and an electronic component manufacturing method are provided which enable an electromagnetic wave shielding film formed on a package to achieve an excellent shielding characteristic. An electronic component 10 includes an electromagnetic wave shielding film 13 formed on the top face of a package sealing elements. The thickness of the electromagnetic wave shielding film 13 on the top face of the package 12 is 0.5 to 9 ?m, and the relationship between the average height Rc of the roughness curvature factor of the top face of the package 12 and the thickness Te of the electromagnetic wave shielding film 13 is Rc?2Te.Type: GrantFiled: October 11, 2017Date of Patent: March 26, 2019Assignee: SHIBAURA MECHATRONICS CORPORATIONInventors: Akihiko Ito, Yoshinao Kamo, Shigeki Matsunaka, Atsushi Fujita
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Patent number: 10195768Abstract: There is provided a method capable of manufacturing a mold at low cost, and a method of manufacturing a biocompatible pattern sheet by using the mold. The method of manufacturing a mold having a recessed pattern includes the steps of: forming a silicone resin film by applying a silicone resin solution to a surface of a model having a protrusion pattern; defoaming the silicone resin film by reducing the silicone resin film in pressure; forming the mold by heating and curing the silicone resin film while a base plate is in contact with a face of the silicone resin film, the face being opposite to the model; and releasing the mold from the model after releasing the base plate. The method of manufacturing a pattern sheet uses the mold.Type: GrantFiled: October 5, 2016Date of Patent: February 5, 2019Assignee: FUJIFILM CorporationInventors: Shotaro Ogawa, Aya Mochizuki, Atsushi Fujita, Toshihiro Usa
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Publication number: 20190023888Abstract: An automotive interior and exterior member having high heat, impact, and weather resistance is provided. The automotive interior and exterior member is made of a thermoplastic resin composition containing a specific polycarbonate resin, butyl acrylate-methyl methacrylate-styrene based rubber, a specific hindered phenol based antioxidant, dibutylhydroxytoluene, 1,1,3-tris-(2-methyl-4-hydroxy-5-t-butylphenyl) butane, tris (2,4-di-t-butylphenyl) phosphite, bis (2,4-di-t-butylphenyl) pentaerythritol-diphosphite, a specific benzotriazole based weathering stabilizer, a specific hindered amine based weathering stabilizer, and a specific perinone based colorant.Type: ApplicationFiled: July 19, 2018Publication date: January 24, 2019Applicant: MAZDA MOTOR CORPORATIONInventors: Yohei ICHIHARA, Atsushi FUJITA
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Patent number: 10125237Abstract: A heat radiation sheet having high heat-radiation property and excellent handleability and having sheet properties permitting the sheet to cope with changes in use temperature thereof. Also provided is a heat radiation device using the sheet. The heat radiation sheet comprises: a binder component comprising: (A) a thermoplastic rubber component; (B) a thermosetting rubber component; and (C) a thermosetting rubber curing agent crosslinkable with the thermosetting rubber component (B); and an anisotropic graphite powder oriented into a specified direction in the binder component.Type: GrantFiled: May 22, 2009Date of Patent: November 13, 2018Assignee: HITACHI CHEMICAL COMPANY, LTD.Inventors: Noriji Tashiro, Michiaki Yajima, Tomonori Seki, Atsushi Fujita, Tooru Yoshikawa, Rei Yamamoto