Patents by Inventor Yoshitaka OKUTSU
Yoshitaka OKUTSU 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: 11346898Abstract: An object is to provide a magnetic sensor module that suppresses a size of a magnetic sensor chip while applying a uniform calibration magnetic field to a magneto-resistive element. Provided is a magnetic sensor module comprising an IC chip having a first coil; and a magnetic sensor chip that is disposed on a surface of the IC chip and includes a first magnetic sensor that detects magnetism in a direction of first axis, wherein a planar shape of the IC chip encompasses a planar shape of the magnetic sensor chip, and the first coil has a planar shape including three or more sides, and is, when seen in a cross section along at least one side of the planar shape, is formed so as to cover a region, in a direction of the one side, of the first magnetic sensor.Type: GrantFiled: June 26, 2020Date of Patent: May 31, 2022Assignees: Asahi Kasei Microdevices Corporation, TDK CorporationInventors: Yoshitaka Okutsu, Masanori Yoshida, Kazuhiro Ishida, Kazuya Watanabe, Hiraku Hirabayashi, Masanori Sakai
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Patent number: 11162772Abstract: A magnetic sensor device includes a composite chip component, and a sensor chip mounted on the composite chip component. The sensor chip includes a first magnetic sensor, a second magnetic sensor, and a third magnetic sensor that detect components of an external magnetic field that are in directions parallel to an X direction, parallel to a Y direction, and parallel to a Z direction, respectively. The composite chip component includes a first magnetic field generator, a second magnetic field generator, and a third magnetic field generator for generating additional magnetic field components that are in directions parallel to the X direction, parallel to the Y direction, and parallel to the Z direction, respectively.Type: GrantFiled: December 2, 2019Date of Patent: November 2, 2021Assignees: TDK CORPORATION, ASAHI KASEI MICRODEVICES CORPORATIONInventors: Kazuya Watanabe, Hiraku Hirabayashi, Yoshitaka Okutsu, Masanori Yoshida
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Patent number: 10976383Abstract: A magnetic sensor device includes three magnetic sensors for detecting components of an external magnetic field that are in three directions, a magnetic field generation section, and a correction processor. The magnetic field generation section generates additional magnetic field components in three directions used for measurements of main- and cross-axis sensitivities of the three magnetic sensors. The correction processor corrects respective detection signals of the three magnetic sensors on the basis of the measurement results of the main- and cross-axis sensitivities of the magnetic sensors.Type: GrantFiled: September 30, 2019Date of Patent: April 13, 2021Assignees: TDK CORPORATION, ASAHI KASEI MICRODEVICES CORPORATIONInventors: Kazuya Watanabe, Yoshitaka Okutsu, Masanori Yoshida
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Publication number: 20200326399Abstract: An object is to provide a magnetic sensor module reducing influence of heat generated from a coil on a magnetic sensor. A conventional method requires, on a magnetic sensor chip, multiple temperature measuring circuits corresponding to multiple magnetic sensors, and many pads for connection to an IC chip. Therefore, the problem is increase in size of the sensor chip mounting the sensors and in manufacturing cost. Provided is a magnetic sensor module comprising an IC chip including a first coil, a first pad connected to one end of the coil, and a second pad to the other end; a magnetic sensor chip disposed on the IC chip's surface, including a first magnetic sensor detecting first axial magnetism; a first external output terminal; a first conductive wire for connecting the first pad and terminal; a second external output terminal; and a second conductive wire for connecting the second pad and terminal.Type: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Applicants: Asahi Kasei Microdevices Corporation, TDK Corporation, TDK CorporationInventors: Masanori YOSHIDA, Yoshitaka OKUTSU, Kazuhiro ISHIDA, Kazuya WATANABE, Hiraku HIRABAYASHI, Masanori SAKAI
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Publication number: 20200326390Abstract: An object is to provide a magnetic sensor module that suppresses a size of a magnetic sensor chip while applying a uniform calibration magnetic field to a magneto-resistive element. Provided is a magnetic sensor module comprising an IC chip having a first coil; and a magnetic sensor chip that is disposed on a surface of the IC chip and includes a first magnetic sensor that detects magnetism in a direction of first axis, wherein a planar shape of the IC chip encompasses a planar shape of the magnetic sensor chip, and the first coil has a planar shape including three or more sides, and is, when seen in a cross section along at least one side of the planar shape, is formed so as to cover a region, in a direction of the one side, of the first magnetic sensor.Type: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Inventors: Yoshitaka OKUTSU, Masanori YOSHIDA, Kazuhiro ISHIDA, Kazuya WATANABE, Hiraku HIRABAYASHI, Masanori SAKAI
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Publication number: 20200191547Abstract: A magnetic sensor device includes a composite chip component, and a sensor chip mounted on the composite chip component. The sensor chip includes a first magnetic sensor, a second magnetic sensor, and a third magnetic sensor that detect components of an external magnetic field that are in directions parallel to an X direction, parallel to a Y direction, and parallel to a Z direction, respectively. The composite chip component includes a first magnetic field generator, a second magnetic field generator, and a third magnetic field generator for generating additional magnetic field components that are in directions parallel to the X direction, parallel to the Y direction, and parallel to the Z direction, respectively.Type: ApplicationFiled: December 2, 2019Publication date: June 18, 2020Applicants: TDK CORPORATION, ASAHI KASEI MICRODEVICES CORPORATIONInventors: Kazuya WATANABE, Hiraku HIRABAYASHI, Yoshitaka OKUTSU, Masanori YOSHIDA
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Publication number: 20200116801Abstract: A magnetic sensor device includes three magnetic sensors for detecting components of an external magnetic field that are in three directions, a magnetic field generation section, and a correction processor. The magnetic field generation section generates additional magnetic field components in three directions used for measurements of main- and cross-axis sensitivities of the three magnetic sensors. The correction processor corrects respective detection signals of the three magnetic sensors on the basis of the measurement results of the main- and cross-axis sensitivities of the magnetic sensors.Type: ApplicationFiled: September 30, 2019Publication date: April 16, 2020Applicants: TDK CORPORATION, ASAHI KASEI MICRODEVICES CORPORATIONInventors: Kazuya WATANABE, Yoshitaka OKUTSU, Masanori YOSHIDA