Patents by Inventor Mitsuo Okada
Mitsuo Okada 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: 12220628Abstract: A recording medium and server provide a game that improves the interest in and taste of a battle event and increases the interest in and real enjoyment of the entire game. The recording medium provides a game including a predetermined battle event comprising at least one battle. In a battle event of this game, game contents are displayed in a first field, and a player selects therefrom a game content to be used for a battle with an enemy character. The first field is replenished with another game content alternative to the selected game content as needed so that the player can further select an additional game content therefrom.Type: GrantFiled: February 1, 2024Date of Patent: February 11, 2025Assignee: GREE, Inc.Inventors: Yusuke Hisaoka, Makiko Tamura, Yuji Okada, Takahiro Mori, Mitsuo Iwao
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Patent number: 12088155Abstract: A driving circuit drives a stepping motor in synchronization with an input clock using a 2-phase excitation method. A constant current chopper circuit generates a pulse modulation signal such that the detection value of the coil current approaches a current setting value. A detection window generation circuit generates a detection window. The detection window becomes an open state at a timing at which the coil current IOUT becomes smaller than a predetermined threshold value. A logic circuit sets a full-bridge circuit to a high-impedance state when the detection window is in the open state and controls the full-bridge circuit according to the pulse modulation signal when the detection window is in the closed state. In the open state of the detection window, a back electromotive force (BEMF) detection circuit detects the BEMF of the coil. A current value setting circuit controls a current setting value based on the BEMF.Type: GrantFiled: June 3, 2022Date of Patent: September 10, 2024Assignee: ROHM CO., LTD.Inventors: Hiroki Hashimoto, Masanori Tsuchihashi, Mitsuo Okada
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Publication number: 20240291407Abstract: A driver device (1) includes a pulse generation circuit (5) that generates, within one period, a pulse waveform (Spl) with a first voltage level in a first period (T1) and a pulse waveform with a second voltage level in a second period (T2). A control circuit (2) makes the first period equal to a minimum on period (Tminon) to perform a supply mode for the minimum on period and, if at the end of the minimum on period the output current (Iout) has reached the set current value (Iset), the control circuit makes a switch to a decay mode and performs a skip of a switch to the supply mode at the end of the second period.Type: ApplicationFiled: May 3, 2024Publication date: August 29, 2024Inventors: Hiroki HASHIMOTO, Mitsuo OKADA
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Patent number: 11539690Abstract: An application server of an authentication system includes a requesting part that makes a request for possession authentication which is authentication using an authenticator, when the requesting part receives a request for authentication of a user from a terminal, a verifying part that receives an authentication result of the possession authentication and information for verification from the authentication server, and verifies the validity of the authentication server on the basis of the received information for verification, and a providing part that provides a function related to the application to the terminal if the verifying part verifies that the authentication server is valid. The authentication server of the authentication system includes a possession authentication part and a result transmission part that transmits the authentication result of the possession authentication and the information for verification to the application server.Type: GrantFiled: December 14, 2020Date of Patent: December 27, 2022Assignee: Capy Japan Inc.Inventors: Kazuhiro Nakagawa, Takanobu Watanabe, Mitsuo Okada
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Publication number: 20220294318Abstract: A driving circuit drives a stepping motor in synchronization with an input clock using a 2-phase excitation method. A constant current chopper circuit generates a pulse modulation signal such that the detection value of the coil current approaches a current setting value. A detection window generation circuit generates a detection window. The detection window becomes an open state at a timing at which the coil current IOUT becomes smaller than a predetermined threshold value. A logic circuit sets a full-bridge circuit to a high-impedance state when the detection window is in the open state and controls the full-bridge circuit according to the pulse modulation signal when the detection window is in the closed state. In the open state of the detection window, a back electromotive force (BEMF) detection circuit detects the BEMF of the coil. A current value setting circuit controls a current setting value based on the BEMF.Type: ApplicationFiled: June 3, 2022Publication date: September 15, 2022Inventors: Hiroki HASHIMOTO, Masanori TSUCHIHASHI, Mitsuo OKADA
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Patent number: 11418138Abstract: The task of the present invention is to provide a driving circuit capable of outputting information useful to design or control of a system to outside. The present invention relates to a driving circuit and a driving method of a stepping motor, and an electronic machine using the driving circuit of a stepping motor. A counter electromotive force detection circuit detects a counter EMF generated in a coil. A revolution count detection circuit acquires the revolution count of the stepping motor. A load angle estimating portion calculates a load angle according to the counter EMF and the revolution count. An interface circuit is configured to be capable of outputting angle information associated with the load angle to outside, or accessing the angle information from the outside.Type: GrantFiled: February 24, 2020Date of Patent: August 16, 2022Assignee: ROHM CO., LTD.Inventors: Masanori Tsuchihashi, Hiroki Hashimoto, Mitsuo Okada
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Patent number: 11381184Abstract: There is provided a driving circuit for a stepping motor, including: a counter electromotive force detection circuit configured to detect a counter electromotive force generated in a coil; a current value setting circuit configured to generate a current set value based on the counter electromotive force; a constant current chopper circuit configured to generate a pulse-modulated signal which is pulse-modulated so that a detected value of a coil current flowing through the coil approaches a target amount based on the current set value; and a logic circuit configured to control a bridge circuit connected to the coil according to the pulse-modulated signal, wherein the driving circuit is configured to output the current set value to outside or to access the current set value from the outside.Type: GrantFiled: February 12, 2020Date of Patent: July 5, 2022Assignee: ROHM CO., LTD.Inventors: Hiroki Hashimoto, Masanori Tsuchihashi, Mitsuo Okada, Ryota Kobayashi
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Patent number: 11251728Abstract: A back electromagnetic force detection circuit detects a counter EMF generated in a coil of a stepping motor. A revolution count detection circuit generates a revolution count detection signal. A determining circuit generates a determination signal that is asserted if the revolution count detection signal is stable across multiple consecutive cycles. A current value setting circuit generates a current setting value indicating a target value of a coil current. The current value setting circuit sets the current setting value to a predetermined value in a period in which the determination signal is negated, and adjusts the current setting value according to the counter EMF in a period in which the determination signal is asserted. A constant current chopper circuit generates a pulse modulation signal that modulates by way of having a detection value of a coil current approach close to a target value of the current setting value.Type: GrantFiled: March 11, 2020Date of Patent: February 15, 2022Assignee: ROHM CO., LTD.Inventors: Masanori Tsuchihashi, Mitsuo Okada
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Patent number: 11245347Abstract: The present invention relates to a driving circuit and a driving method for a stepping motor, and an electronic machine using the same. A current value setting circuit generates a current setting value. A constant current chopper circuit generates a pulse modulation signal, which pulse-width modulates by having a detection value of a coil current flowing through a coil approach close to the current setting value. A logic circuit controls a bridge circuit connected to the coil of the stepping motor according to the pulse modulation signal. The current value setting circuit sets the current setting value to a predetermined full-torque setting value in a first period after rotation starts, reduces the current setting value to a predetermined second setting value less than the first setting value in the following second period, and switches to a high-efficiency mode and adjusts the current setting value by means of feedback control.Type: GrantFiled: February 24, 2020Date of Patent: February 8, 2022Assignee: ROHM CO., LTD.Inventors: Masanori Tsuchihashi, Mitsuo Okada, Ryota Kobayashi
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Patent number: 11153312Abstract: In an evaluation device, a receiver part receives, from an authentication device, a hash value of a user identifier for identifying a user, which is generated in a terminal unit used for the login by the user, and information indicating a login environment of the terminal unit, which is encrypted in the terminal unit. A decoding part decodes the encrypted information indicating the login environment of the terminal unit. A risk calculation part calculates an evaluation value that indicates a risk of the login being an unauthorized access based on a statistic related to a degree of similarity between the login environment of the terminal unit and a previous login environment by the user corresponding to the hash value. A transmitter part 120b transmits a comparison result between the calculated evaluation value and a predetermined threshold.Type: GrantFiled: December 4, 2018Date of Patent: October 19, 2021Assignee: Capy Japan Inc.Inventors: Takanobu Watanabe, Mitsuo Okada
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Publication number: 20210234858Abstract: In the authentication system, the application server includes an authentication requesting part that sends biometric authentication request information to an authentication server for requesting biometric authentication for the user, and a providing part that provides a function related to the application when the authentication succeeds, the authentication server includes a biometric authentication instructing part that sends a push notification including first instruction information to a mobile terminal, which is possessed by the user, when the biometric authentication request information is received, first instruction information instructing performance of the biometric authentication corresponding to the service ID included in said biometric authentication request information, and a result sending part that sends the authentication result to the application server that sent the biometric authentication request information when an authentication result of the biometric authentication corresponding to theType: ApplicationFiled: March 25, 2021Publication date: July 29, 2021Applicant: Capy Japan Inc.Inventors: Kazuhiro NAKAGAWA, Takanobu WATANABE, Mitsuo OKADA
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Publication number: 20210234857Abstract: An application server of an authentication system includes a requesting part that makes a request for possession authentication which is authentication using an authenticator, when the requesting part receives a request for authentication of a user from a terminal, a verifying part that receives an authentication result of the possession authentication and information for verification from the authentication server, and verifies the validity of the authentication server on the basis of the received information for verification, and a providing part that provides a function related to the application to the terminal if the verifying part verifies that the authentication server is valid. The authentication server of the authentication system includes a possession authentication part and a result transmission part that transmits the authentication result of the possession authentication and the information for verification to the application server.Type: ApplicationFiled: December 14, 2020Publication date: July 29, 2021Applicant: Capy Japan Inc.Inventors: Kazuhiro NAKAGAWA, Takanobu WATANABE, Mitsuo OKADA
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Publication number: 20200295683Abstract: The present invention provides a driving circuit capable of appropriately switching to a high-torque mode and a high-efficiency mode. The present invention relates to a driving circuit and a driving method for a stepping motor, and an electronic machine using the same. A back electromagnetic force detection circuit detects a counter EMF generated in a coil of a stepping motor. A revolution count detection circuit generates a revolution count detection signal representing the revolution count of the stepping motor. A determining circuit generates a determination signal that is asserted if the revolution count detection signal is stable across multiple consecutive cycles. A current value setting circuit generates a current setting value indicating a target value of a coil current.Type: ApplicationFiled: March 11, 2020Publication date: September 17, 2020Inventors: Masanori TSUCHIHASHI, Mitsuo OKADA
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Publication number: 20200280272Abstract: The task of the present invention is to provide a driving circuit capable of outputting information useful to design or control of a system to outside. The present invention relates to a driving circuit and a driving method of a stepping motor, and an electronic machine using the driving circuit of a stepping motor. A counter electromotive force detection circuit detects a counter EMF generated in a coil. A revolution count detection circuit acquires the revolution count of the stepping motor. A load angle estimating portion calculates a load angle according to the counter EMF and the revolution count. An interface circuit is configured to be capable of outputting angle information associated with the load angle to outside, or accessing the angle information from the outside.Type: ApplicationFiled: February 24, 2020Publication date: September 3, 2020Inventors: Masanori TSUCHIHASHI, Hiroki HASHIMOTO, Mitsuo OKADA
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Publication number: 20200274469Abstract: The present invention optimizes a current setting value within a short time. The present invention relates to a driving circuit and a driving method for a stepping motor, and an electronic machine using the same. A current value setting circuit generates a current setting value. A constant current chopper circuit generates a pulse modulation signal, which pulse-width modulates by way of having a detection value of a coil current flowing through a coil approach close to the current setting value. A logic circuit controls a bridge circuit connected to a coil of a stepping motor according to the Pulse modulation signal.Type: ApplicationFiled: February 24, 2020Publication date: August 27, 2020Inventors: Masanori TSUCHIHASHI, Mitsuo OKADA, Ryota KOBAYASHI
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Publication number: 20200266739Abstract: There is provided a driving circuit for a stepping motor, including: a counter electromotive force detection circuit configured to detect a counter electromotive force generated in a coil; a current value setting circuit configured to generate a current set value based on the counter electromotive force; a constant current chopper circuit configured to generate a pulse-modulated signal which is pulse-modulated so that a detected value of a coil current flowing through the coil approaches a target amount based on the current set value; and a logic circuit configured to control a bridge circuit connected to the coil according to the pulse-modulated signal, wherein the driving circuit is configured to output the current set value to outside or to access the current set value from the outside.Type: ApplicationFiled: February 12, 2020Publication date: August 20, 2020Inventors: Hiroki HASHIMOTO, Masanori TSUCHIHASHI, Mitsuo OKADA, Ryota KOBAYASHI
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Publication number: 20200086206Abstract: [Problem] In the past, a prescribed action could not be executed through an enjoyable operation. [Solution] The information processing device according to one embodiment comprises an output unit for outputting one or more blank areas corresponding to one or more items of blank area information, and one or more objects; a receiving unit for receiving a move command with respect to the object; a mover unit for moving the object in response to a move command received by the receiving unit; and an execution unit for, in cases where the position of an object moved by the mover unit exists in a predetermined positional relationship with respect to the blank area, executing an action that corresponds to the blank area or moved object.Type: ApplicationFiled: November 20, 2019Publication date: March 19, 2020Applicant: Capy, Inc.Inventor: Mitsuo Okada
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Patent number: 10525331Abstract: [Problem] In the past, a prescribed action could not be executed through an enjoyable operation. [Solution] The information processing device according to one embodiment comprises an output unit for outputting one or more blank areas corresponding to one or more items of blank area information, and one or more objects; a receiving unit for receiving a move command with respect to the object; a mover unit for moving the object in response to a move command received by the receiving unit; and an execution unit for, in cases where the position of an object moved by the mover unit exists in a predetermined positional relationship with respect to the blank area, executing an action that corresponds to the blank area or moved object.Type: GrantFiled: July 7, 2014Date of Patent: January 7, 2020Assignee: Capy, Inc.Inventor: Mitsuo Okada
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Publication number: 20190116181Abstract: In an evaluation device, a receiver part receives, from an authentication device, a hash value of a user identifier for identifying a user, which is generated in a terminal unit used for the login by the user, and information indicating a login environment of the terminal unit, which is encrypted in the terminal unit. A decoding part decodes the encrypted information indicating the login environment of the terminal unit. A risk calculation part calculates an evaluation value that indicates a risk of the login being an unauthorized access based on a statistic related to a degree of similarity between the login environment of the terminal unit and a previous login environment by the user corresponding to the hash value. A transmitter part 120b transmits a comparison result between the calculated evaluation value and a predetermined threshold.Type: ApplicationFiled: December 4, 2018Publication date: April 18, 2019Applicant: Capy Japan Inc.Inventors: Takanobu WATANABE, Mitsuo OKADA
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Patent number: 9667612Abstract: [Problem] To selectively provide, in accordance with a user terminal a CAPTCHA that can be easily executed by an operator of the user terminal. [Solution] A web server (11) determines the type of web browser running in a user terminal (13). An authentication server (12) decides a CAPTCHA execution program on the basis of the type of web browser that has been determined. The authentication server (12) executes the decided CAPTCHA execution program to generate problem data and correct answer data. The web server (11) provides the CAPTCHA to the user terminal (13) on the basis of the problem data. The authentication server (12) compares the correct answer data and answer data generated by the user terminal (13), and determines whether authentication has succeeded or failed.Type: GrantFiled: January 6, 2012Date of Patent: May 30, 2017Assignee: Capy, Inc.Inventor: Mitsuo Okada