Patents by Inventor Kazuo Takada
Kazuo Takada 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: 11926531Abstract: Flaky alumina particles including mullite in a surface layer of the flaky alumina particles. A method for producing flaky alumina particles including forming a mixture by mixing together an aluminum compound that contains elemental aluminum, a molybdenum compound that contains elemental molybdenum, and silicon or a silicon compound that contains elemental silicon, the aluminum compound being in an amount greater than or equal to 50 mass %, calculated as Al2O3, the molybdenum compound being in an amount less than or equal to 40 mass %, calculated as MoO3, the silicon or the silicon compound being in an amount of 0.5 mass % or greater and less than 10 mass %, calculated as SiO2, relative to a total mass of the flaky alumina particles taken as 100 mass %; and firing the mixture.Type: GrantFiled: July 26, 2018Date of Patent: March 12, 2024Assignee: DIC CorporationInventors: Shingo Takada, Kazuo Itoya, Jian-Jun Yuan, Takayuki Kanematsu, Masamichi Hayashi, Fumihiko Maekawa, Yoshiyuki Sano
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Publication number: 20240049359Abstract: An information processing apparatus includes a first communication section configured to communicate with a communication terminal through a first communication channel, and a second communication section configured to communicate with the communication terminal through a second communication channel different from the first communication channel, wherein the first communication section is used for transmission of connection information for establishing the second communication channel with the communication terminal, wherein the second communication section is configured to establish the second communication channel based on the connection information.Type: ApplicationFiled: August 22, 2023Publication date: February 8, 2024Inventors: Isao Soma, Naoki Miyabayashi, Yoshihiro Yoneda, Seiji Kuroda, Yasuharu Ishikawa, Kazuo Takada
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Patent number: 11778694Abstract: There is provided an information processing apparatus including a first communication section configured to communicate with a communication terminal through a first communication channel, and a second communication section configured to communicate with the communication terminal through a second communication channel different from the first communication channel, wherein the first communication section is used for transmission of connection information for establishing the second communication channel with the communication terminal, wherein the second communication section is configured to establish the second communication channel based on the connection information, and wherein the information processing apparatus is connected to a network based on a connection instruction transmitted across the second communication channel, and receives service data by which to run the information processing apparatus from a service providing apparatus via the network.Type: GrantFiled: October 15, 2021Date of Patent: October 3, 2023Assignee: INTERDIGITAL CE PATENT HOLDINGS, SASInventors: Isao Soma, Naoki Miyabayashi, Yoshihiro Yoneda, Seiji Kuroda, Yasuharu Ishikawa, Kazuo Takada
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Patent number: 11678229Abstract: There is provided a communication apparatus including: a first communication unit having a first communication range; a second communication unit having a second communication range wider than the first communication range; a control unit which transmits a request signal for starting communication via the second communication unit from the first communication unit to another communication apparatus, and transmits authentication information from the second communication unit to the another communication apparatus in the case where it is determined that communication with the another communication apparatus via the second communication unit is possible based on a response signal after the first communication unit receives the response signal in response to the request signal; and a notification unit which notifies a user after the second communication unit receives a result of authentication based on the authentication information.Type: GrantFiled: November 6, 2020Date of Patent: June 13, 2023Assignee: Sony CorporationInventors: Kazuo Takada, Isao Soma, Seiji Kuroda, Yasuharu Ishikawa, Yoshihiro Yoneda, Naoki Miyabayashi
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Patent number: 11563393Abstract: A control device 10 for a rotary apparatus 1 includes a driving circuit 40 configured to apply a driving voltage to a stepping motor 20 that rotates an output gear 74, and a control circuit 30 configured to output, to the driving circuit 40, driving pulses in a number corresponding to a driving target included in a driving command signal from the outside. The control circuit 30 includes a driving-pulse output unit 61 configured to output the driving pulse in the number corresponding to the driving target, a position-information acquiring unit 52 configured to acquire position information from a potentiometer 75 that reads a rotating position of the output gear 74 of the rotary apparatus 1, and a rotation-abnormality determining unit 59 configured to determine, based on the position information acquired by the position-information acquiring unit 52, whether a rotation abnormality has occurred in the rotary apparatus 1.Type: GrantFiled: December 14, 2020Date of Patent: January 24, 2023Assignee: MINEBEA MITSUMI Inc.Inventors: Kazuo Takada, Takayuki Matsui, Haruka Miyaji, Hideo Sano
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Publication number: 20220321038Abstract: The application includes a rotating device 1 that includes a variable resistor, a voltage output line configured to output a voltage, and an adjustment resistor. A resistance value Rx of the adjustment resistor is set to a value between a minimum value RxMin determined in a manner for a ratio of an adjustment voltage Vx in a case of having the adjustment resistor to a reference voltage Vo in a case of not having the adjustment resistor to become greater than or equal to a predetermined value, and a maximum value RxMax determined in a manner for noise generated on the voltage output from the voltage output line with the contact position located within a dead zone of a position sensor 80 to become less than or equal to a predetermined value.Type: ApplicationFiled: March 28, 2022Publication date: October 6, 2022Inventors: Kazuo TAKADA, Haruka MIYAJI, Azusa IKEGAMI
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Publication number: 20220294313Abstract: To provide a motor inhibiting emission of electromagnetic noise (EMC) to the outside and a rotary apparatus including the motor. The rotary apparatus of the present disclosure includes: a housing; a motor arranged inside the housing; a circuit board arranged inside the housing and electrically connected to the motor; and a flexible wiring board electrically connecting the motor to the circuit board, the motor including a frame formed with a conductive member, the frame electrically connected via the flexible wiring board to a ground of the circuit board.Type: ApplicationFiled: May 31, 2022Publication date: September 15, 2022Inventors: Haruka MIYAJI, Kazuo TAKADA, Shigeki MIYAJI, Takayuki MATSUI
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Patent number: 11381139Abstract: To provide a motor inhibiting emission of electromagnetic noise (EMC) to the outside and a rotary apparatus including the motor. The rotary apparatus (10) of the present disclosure includes: a housing (20); a motor (40) arranged inside the housing (20); a circuit board (50) arranged inside the housing (20) and electrically connected to the motor (40); and a flexible wiring board (44) electrically connecting the motor (40) to the circuit board (50), the motor (40) including a frame (41a) formed with a conductive member, the frame (41a) electrically connected via the flexible wiring board (44) to a ground of the circuit board (50).Type: GrantFiled: February 22, 2019Date of Patent: July 5, 2022Assignee: MINEBEA MITSUMI INC.Inventors: Haruka Miyaji, Kazuo Takada, Shigeki Miyaji, Takayuki Matsui
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Patent number: 11317343Abstract: An information processing device includes: an exchange unit configured to exchange information concerning a communication state with, respect to a server using a first communication with another information processing device which becomes the other party of communication in a second communication; and a method selection unit configured to select a transmission/reception method of content data with respect to another information processing device using the second communication based on the information exchanged by the exchange unit in accordance with the communication state of each device with respect to the server using the first communication.Type: GrantFiled: January 5, 2011Date of Patent: April 26, 2022Assignee: Sony CorporationInventors: Naoki Miyabayashi, Yasuharu Ishikawa, Kazuo Takada, Tomoyuki Nakayama, Takayuki Inamori, Masahiro Sueyoshi
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Publication number: 20220039203Abstract: There is provided an information processing apparatus including a first communication section configured to communicate with a communication terminal through a first communication channel, and a second communication section configured to communicate with the communication terminal through a second communication channel different from the first communication channel, wherein the first communication section is used for transmission of connection information for establishing the second communication channel with the communication terminal, wherein the second communication section is configured to establish the second communication channel based on the connection information, and wherein the information processing apparatus is connected to a network based on a connection instruction transmitted across the second communication channel, and receives service data by which to run the information processing apparatus from a service providing apparatus via the network.Type: ApplicationFiled: October 15, 2021Publication date: February 3, 2022Inventors: Isao Soma, Naoki Miyabayashi, Yoshihiro Yoneda, Seiji Kuroda, Yasuharu Ishikawa, Kazuo Takada
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Patent number: 11178727Abstract: There is provided an information processing apparatus including a first communication section configured to communicate with a communication terminal through a first communication channel, and a second communication section configured to communicate with the communication terminal through a second communication channel different from the first communication channel, wherein the first communication section is used for transmission of connection information for establishing the second communication channel with the communication terminal, wherein the second communication section is configured to establish the second communication channel based on the connection information, and wherein the information processing apparatus is connected to a network based on a connection instruction transmitted across the second communication channel, and receives service data by which to run the information processing apparatus from a service providing apparatus via the network.Type: GrantFiled: May 18, 2020Date of Patent: November 16, 2021Assignee: Sony CorporationInventors: Isao Soma, Naoki Miyabayashi, Yoshihiro Yoneda, Seiji Kuroda, Yasuharu Ishikawa, Kazuo Takada
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Patent number: 11165377Abstract: A control device for a stepping motor capable of hold control that can smoothly reduce an excitation current at a rotation stopping time of the stepping motor is provided. A control device (10) for a stepping motor (20) causes an excitation current to flow in a plurality of coils to rotate a rotor. The control device (10) includes a driving circuit (40) that applies a driving voltage to the coils, and a control circuit (30) that controls the driving voltage. The control circuit (30) performs hold control to move the rotor to a predetermined stop position by changing a magnitude of the excitation current flowing in the coils so that the magnitude of the excitation current becomes close to a target current value that gradually decreases, in a hold time period at a rotation stopping time of the stepping motor (20).Type: GrantFiled: May 23, 2019Date of Patent: November 2, 2021Assignee: MINEBEA MITSUMI INC.Inventors: Ayaka Shimada, Kazuo Takada, Kei Yamazaki
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Patent number: 11139763Abstract: A motor drive control device has a controller and a driver. The controller generates a control signal for controlling driving of a two-phase stepping motor so as to alternately repeat one-phase excitation in which a coil of one phase in coils of two phases of the two-phase stepping motor is excited and two-phase excitation in which the coils of two phases in the coils of the two phases are excited. The driver drives the coils of the two phases, based on the control signal. The controller determines, based on a back electromotive force generated in the coil that was not excited during the one-phase excitation, a period of performing the one-phase excitation, and determines, based on the period of the one-phase excitation performed before the two-phase excitation, a period of performing the two-phase excitation.Type: GrantFiled: July 27, 2020Date of Patent: October 5, 2021Assignee: MINEBEA MITSUMI INC.Inventors: Haruka Miyaji, Kei Yamazaki, Takayuki Matsui, Kazuo Takada, Shigeki Miyaji, Ayaka Shimada
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Publication number: 20210249977Abstract: A control device for a stepping motor capable of hold control that can smoothly reduce an excitation current at a rotation stopping time of the stepping motor is provided. A control device (10) for a stepping motor (20) causes an excitation current to flow in a plurality of coils to rotate a rotor. The control device (10) includes a driving circuit (40) that applies a driving voltage to the coils, and a control circuit (30) that controls the driving voltage. The control circuit (30) performs hold control to move the rotor to a predetermined stop position by changing a magnitude of the excitation current flowing in the coils so that the magnitude of the excitation current becomes close to a target current value that gradually decreases, in a hold time period at a rotation stopping time of the stepping motor (20).Type: ApplicationFiled: May 23, 2019Publication date: August 12, 2021Inventors: Ayaka SHIMADA, Kazuo TAKADA, Kei YAMAZAKI
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Publication number: 20210194399Abstract: A control device 10 for a rotary apparatus 1 includes a driving circuit 40 configured to apply a driving voltage to a stepping motor 20 that rotates an output gear 74, and a control circuit 30 configured to output, to the driving circuit 40, driving pulses in a number corresponding to a driving target included in a driving command signal from the outside. The control circuit 30 includes a driving-pulse output unit 61 configured to output the driving pulse in the number corresponding to the driving target, a position-information acquiring unit 52 configured to acquire position information from a potentiometer 75 that reads a rotating position of the output gear 74 of the rotary apparatus 1, and a rotation-abnormality determining unit 59 configured to determine, based on the position information acquired by the position-information acquiring unit 52, whether a rotation abnormality has occurred in the rotary apparatus 1.Type: ApplicationFiled: December 14, 2020Publication date: June 24, 2021Inventors: Kazuo TAKADA, Takayuki MATSUI, Haruka MIYAJI, Hideo SANO
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Publication number: 20210058830Abstract: There is provided a communication apparatus including: a first communication unit having a first communication range; a second communication unit having a second communication range wider than the first communication range; a control unit which transmits a request signal for starting communication via the second communication unit from the first communication unit to another communication apparatus, and transmits authentication information from the second communication unit to the another communication apparatus in the case where it is determined that communication with the another communication apparatus via the second communication unit is possible based on a response signal after the first communication unit receives the response signal in response to the request signal; and a notification unit which notifies a user after the second communication unit receives a result of authentication based on the authentication information.Type: ApplicationFiled: November 6, 2020Publication date: February 25, 2021Inventors: Kazuo TAKADA, Isao SOMA, Seiji KURODA, Yasuharu ISHIKAWA, Yoshihiro YONEDA, Naoki MIYABAYASHI
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Publication number: 20210044229Abstract: A motor drive control device has a controller and a driver. The controller generates a control signal for controlling driving of a two-phase stepping motor so as to alternately repeat one-phase excitation in which a coil of one phase in coils of two phases of the two-phase stepping motor is excited and two-phase excitation in which the coils of two phases in the coils of the two phases are excited. The driver drives the coils of the two phases, based on the control signal. The controller determines, based on a back electromotive force generated in the coil that was not excited during the one-phase excitation, a period of performing the one-phase excitation, and determines, based on the period of the one-phase excitation performed before the two-phase excitation, a period of performing the two-phase excitation.Type: ApplicationFiled: July 27, 2020Publication date: February 11, 2021Inventors: Haruka MIYAJI, Kei YAMAZAKI, Takayuki MATSUI, Kazuo TAKADA, Shigeki MIYAJI, Ayaka SHIMADA
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Patent number: 10856187Abstract: There is provided a communication apparatus including: a first communication unit having a first communication range; a second communication unit having a second communication range wider than the first communication range; a control unit which transmits a request signal for starting communication via the second communication unit from the first communication unit to another communication apparatus, and transmits authentication information from the second communication unit to the another communication apparatus in the case where it is determined that communication with the another communication apparatus via the second communication unit is possible based on a response signal after the first communication unit receives the response signal in response to the request signal; and a notification unit which notifies a user after the second communication unit receives a result of authentication based on the authentication information.Type: GrantFiled: October 24, 2019Date of Patent: December 1, 2020Assignee: Sony CorporationInventors: Kazuo Takada, Isao Soma, Seiji Kuroda, Yasuharu Ishikawa, Yoshihiro Yoneda, Naoki Miyabayashi
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Publication number: 20200341809Abstract: An electronic device includes one or a plurality of control units configured to execute an application. The control unit includes a classification unit configured to classify the application as one of a plurality of categories according to a processing load and a parameter setting unit configured to set a control parameter for controlling the control unit according to the classified category.Type: ApplicationFiled: April 21, 2020Publication date: October 29, 2020Inventor: KAZUO TAKADA
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Publication number: 20200281045Abstract: There is provided an information processing apparatus including a first communication section configured to communicate with a communication terminal through a first communication channel, and a second communication section configured to communicate with the communication terminal through a second communication channel different from the first communication channel, wherein the first communication section is used for transmission of connection information for establishing the second communication channel with the communication terminal, wherein the second communication section is configured to establish the second communication channel based on the connection information, and wherein the information processing apparatus is connected to a network based on a connection instruction transmitted across the second communication channel, and receives service data by which to run the information processing apparatus from a service providing apparatus via the network.Type: ApplicationFiled: May 18, 2020Publication date: September 3, 2020Inventors: Isao Soma, Naoki Miyabayashi, Yoshihiro Yoneda, Seiji Kuroda, Yasuharu Ishikawa, Kazuo Takada