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).

  • Patent number: 11925858
    Abstract: 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: Grant
    Filed: February 16, 2022
    Date of Patent: March 12, 2024
    Assignee: GREE, Inc.
    Inventors: Yusuke Hisaoka, Makiko Tamura, Yuji Okada, Takahiro Mori, Mitsuo Iwao
  • Patent number: 11539690
    Abstract: 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: Grant
    Filed: December 14, 2020
    Date of Patent: December 27, 2022
    Assignee: Capy Japan Inc.
    Inventors: Kazuhiro Nakagawa, Takanobu Watanabe, Mitsuo Okada
  • Publication number: 20220294318
    Abstract: 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: Application
    Filed: June 3, 2022
    Publication date: September 15, 2022
    Inventors: Hiroki HASHIMOTO, Masanori TSUCHIHASHI, Mitsuo OKADA
  • Patent number: 11418138
    Abstract: 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: Grant
    Filed: February 24, 2020
    Date of Patent: August 16, 2022
    Assignee: ROHM CO., LTD.
    Inventors: Masanori Tsuchihashi, Hiroki Hashimoto, Mitsuo Okada
  • Patent number: 11381184
    Abstract: 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: Grant
    Filed: February 12, 2020
    Date of Patent: July 5, 2022
    Assignee: ROHM CO., LTD.
    Inventors: Hiroki Hashimoto, Masanori Tsuchihashi, Mitsuo Okada, Ryota Kobayashi
  • Patent number: 11251728
    Abstract: 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: Grant
    Filed: March 11, 2020
    Date of Patent: February 15, 2022
    Assignee: ROHM CO., LTD.
    Inventors: Masanori Tsuchihashi, Mitsuo Okada
  • Patent number: 11245347
    Abstract: 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: Grant
    Filed: February 24, 2020
    Date of Patent: February 8, 2022
    Assignee: ROHM CO., LTD.
    Inventors: Masanori Tsuchihashi, Mitsuo Okada, Ryota Kobayashi
  • Patent number: 11153312
    Abstract: 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: Grant
    Filed: December 4, 2018
    Date of Patent: October 19, 2021
    Assignee: Capy Japan Inc.
    Inventors: Takanobu Watanabe, Mitsuo Okada
  • Publication number: 20210234858
    Abstract: 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 the
    Type: Application
    Filed: March 25, 2021
    Publication date: July 29, 2021
    Applicant: Capy Japan Inc.
    Inventors: Kazuhiro NAKAGAWA, Takanobu WATANABE, Mitsuo OKADA
  • Publication number: 20210234857
    Abstract: 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: Application
    Filed: December 14, 2020
    Publication date: July 29, 2021
    Applicant: Capy Japan Inc.
    Inventors: Kazuhiro NAKAGAWA, Takanobu WATANABE, Mitsuo OKADA
  • Publication number: 20200295683
    Abstract: 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: Application
    Filed: March 11, 2020
    Publication date: September 17, 2020
    Inventors: Masanori TSUCHIHASHI, Mitsuo OKADA
  • Publication number: 20200280272
    Abstract: 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: Application
    Filed: February 24, 2020
    Publication date: September 3, 2020
    Inventors: Masanori TSUCHIHASHI, Hiroki HASHIMOTO, Mitsuo OKADA
  • Publication number: 20200274469
    Abstract: 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: Application
    Filed: February 24, 2020
    Publication date: August 27, 2020
    Inventors: Masanori TSUCHIHASHI, Mitsuo OKADA, Ryota KOBAYASHI
  • Publication number: 20200266739
    Abstract: 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: Application
    Filed: February 12, 2020
    Publication date: August 20, 2020
    Inventors: Hiroki HASHIMOTO, Masanori TSUCHIHASHI, Mitsuo OKADA, Ryota KOBAYASHI
  • Publication number: 20200086206
    Abstract: [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: Application
    Filed: November 20, 2019
    Publication date: March 19, 2020
    Applicant: Capy, Inc.
    Inventor: Mitsuo Okada
  • Patent number: 10525331
    Abstract: [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: Grant
    Filed: July 7, 2014
    Date of Patent: January 7, 2020
    Assignee: Capy, Inc.
    Inventor: Mitsuo Okada
  • Publication number: 20190116181
    Abstract: 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: Application
    Filed: December 4, 2018
    Publication date: April 18, 2019
    Applicant: Capy Japan Inc.
    Inventors: Takanobu WATANABE, Mitsuo OKADA
  • Patent number: 9667612
    Abstract: [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: Grant
    Filed: January 6, 2012
    Date of Patent: May 30, 2017
    Assignee: Capy, Inc.
    Inventor: Mitsuo Okada
  • Publication number: 20160129339
    Abstract: [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: Application
    Filed: July 7, 2014
    Publication date: May 12, 2016
    Applicant: Capy Inc.
    Inventor: Mitsuo Okada
  • Publication number: 20150143495
    Abstract: [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: Application
    Filed: January 6, 2012
    Publication date: May 21, 2015
    Applicant: Capy Inc.
    Inventor: Mitsuo Okada