Patents by Inventor Hidekazu Okada

Hidekazu 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: 10661424
    Abstract: An electric power tool includes a motor, an output shaft, a drive force transmission configured to reduce drive speed of the motor and transmit drive force of the motor to the output shaft; a trigger that can be pulled by a user; a rotation speed changing circuitry configured to change a rotation speed of the output shaft that corresponds to a maximum pulled amount of the trigger to a limited rotation speed that is lower than a maximum rotation speed of the output shaft in a non-limited rotation speed mode; and a rotation speed control circuitry configured to control a rotation speed of the motor in correspondence with a pulled, amount of the trigger to obtain the rotation speed of the output shaft that is changed by the rotation speed changing circuitry.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: May 26, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Fumiaki Sawano, Masaaki Okada, Hidekazu Yuasa
  • Publication number: 20200101586
    Abstract: An electric power tool includes a motor, an output shaft, a drive force transmission configured to reduce drive speed of the motor and transmit drive force of the motor to the output shaft; a trigger that can be pulled by a user; a rotation speed changing circuitry configured to change a rotation speed of the output shaft that corresponds to a maximum pulled amount of the trigger to a limited rotation speed that is lower than a maximum rotation speed of the output shaft in a non-limited rotation speed mode; and a rotation speed control circuitry configured to control a rotation speed of the motor in correspondence with a pulled amount of the trigger to obtain the rotation speed of the output shaft that is changed by the rotation speed changing circuitry.
    Type: Application
    Filed: December 3, 2019
    Publication date: April 2, 2020
    Inventors: Fumiaki SAWANO, Masaaki OKADA, Hidekazu YUASA
  • Publication number: 20200078921
    Abstract: An electric power tool includes a motor, an output shaft, a drive force transmission configured to reduce drive speed of the motor and transmit drive force of the motor to the output shaft; a trigger that can be pulled by a user; a rotation speed changing circuitry configured to change a rotation speed of the output shaft that corresponds to a maximum pulled amount of the trigger to a limited rotation speed that is lower than a maximum rotation speed of the output shaft in a non-limited rotation speed mode; and a rotation speed control circuitry configured to control a rotation speed of the motor in correspondence with a pulled amount of the trigger to obtain the rotation speed of the output shaft that is changed by the rotation speed changing circuitry.
    Type: Application
    Filed: November 15, 2019
    Publication date: March 12, 2020
    Inventors: Fumiaki SAWANO, Masaaki OKADA, Hidekazu YUASA
  • Patent number: 10574860
    Abstract: An image scanner includes: a document table; a document cover; a light source; an image sensor; and a circuit configured to: acquire, as pre-reading black data, the line data that is generated by the image sensor in a state where the light source is turned off; after acquiring the pre-reading black data, acquire, as line image data, the line data that is generated by the image sensor in a state where light is emitted from the light source to an original document supported on the document table; after acquiring the line image data, acquire, as post-reading black data, the line data that is generated by the image sensor in a state where the light source is turned off; determine black reference data based on the post-reading black data and the pre-reading black data; and perform black correction on the line image data based on the black reference data.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: February 25, 2020
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hidekazu Okada
  • Patent number: 10477065
    Abstract: An image scanning apparatus includes a distance detector configured to output a detection signal having a value corresponding to a distance in a main scanning direction from a particular position to a side end of a document sheet being conveyed, and a controller configured to store a first position of the document sheet in a conveyance direction when the distance detector outputs a detection signal having a first value corresponding to a first particular distance, store a second position of the document sheet in the conveyance direction when the distance detector outputs a detection signal having a second value corresponding to a second particular distance, and calculate a skew angle of the document sheet based on the first position and the second position.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: November 12, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hidekazu Okada
  • Publication number: 20190332952
    Abstract: An image pickup system includes an input/output modeling section 24, the input/output modeling section 24 creating, as a population, an image group obtained when a specific target is photographed, (access image), and generating an inference model by using, as teacher data, sequential images selected from the image group created as the population, based on whether the specific target can be accessed, wherein each image of the image group is associated with date and time information and/or position information, and the input/output modeling section 24 generates an inference model for determining based on the date and time information and/or the position information whether a process to the specific target is good or bad.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 31, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Osamu NONAKA, Kazuhiko OSA, Yoichi YOSHIDA, Hirokazu NOZAKI, Masahiro FUJIMOTO, Hidekazu IWAKI, Koji SAKAI, Keiji OKADA, Yoshihisa OGATA
  • Publication number: 20190268505
    Abstract: An image scanner includes: a document table; a document cover; a light source; an image sensor; and a circuit configured to: acquire, as pre-reading black data, the line data that is generated by the image sensor in a state where the light source is turned off; after acquiring the pre-reading black data, acquire, as line image data, the line data that is generated by the image sensor in a state where light is emitted from the light source to an original document supported on the document table; after acquiring the line image data, acquire, as post-reading black data, the line data that is generated by the image sensor in a state where the light source is turned off; determine black reference data based on the post-reading black data and the pre-reading black data; and perform black correction on the line image data based on the black reference data.
    Type: Application
    Filed: February 20, 2019
    Publication date: August 29, 2019
    Inventor: Hidekazu OKADA
  • Publication number: 20180343361
    Abstract: An image scanning apparatus includes a distance detector configured to output a detection signal having a value corresponding to a distance in a main scanning direction from a particular position to a side end of a document sheet being conveyed, and a controller configured to store a first position of the document sheet in a conveyance direction when the distance detector outputs a detection signal having a first value corresponding to a first particular distance, store a second position of the document sheet in the conveyance direction when the distance detector outputs a detection signal having a second value corresponding to a second particular distance, and calculate a skew angle of the document sheet based on the first position and the second position.
    Type: Application
    Filed: March 20, 2018
    Publication date: November 29, 2018
    Inventor: Hidekazu OKADA
  • Patent number: 10027845
    Abstract: An image scanner includes a controller configured to perform black data acquiring process for each color that includes, in a particular period of time, while controlling a light source to be turned off, controlling each of a plurality of light receiving elements to read an image of an object and transmit read data of the object to a shift register, and in a specific period of time next to the particular period of time, controlling the light source to emit light of a color different from the particular color, and controlling the shift register to output a plurality of pieces of image data of the object as a plurality of pieces of black data for the particular color, the plurality of pieces of image data corresponding to the plurality of pieces of read data of the object transmitted by the plurality of light receiving elements, respectively.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: July 17, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hidekazu Okada
  • Patent number: 9906685
    Abstract: An image scanning apparatus, comprising: a scanning device; a reference member; a correction unit; a controller; and a storage device, the scanning device comprising light receiving elements and a lens array, wherein the controller executes: a preparation process and an executive process, the preparation process comprising: a white reference data obtaining process to obtain white reference data by scanning a white reference original; and a white storing process to obtain white basic data by averaging the white reference data of a particular number of adjoining light receiving elements, wherein the executive process comprises: a reference member data obtaining process to obtain reference member data by scanning the reference member; a lens fluctuation calculation process to calculate fluctuation data of the correction data based on the reference member data; and a correction data generation process to generate the correction data by adding the fluctuation data to the white basic data.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: February 27, 2018
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hidekazu Okada, Takahiro Ikeno
  • Publication number: 20170318188
    Abstract: An image scanner includes a controller configured to perform black data acquiring process for each color that includes, in a particular period of time, while controlling a light source to be turned off, controlling each of a plurality of light receiving elements to read an image of an object and transmit read data of the object to a shift register, and in a specific period of time next to the particular period of time, controlling the light source to emit light of a color different from the particular color, and controlling the shift register to output a plurality of pieces of image data of the object as a plurality of pieces of black data for the particular color, the plurality of pieces of image data corresponding to the plurality of pieces of read data of the object transmitted by the plurality of light receiving elements, respectively.
    Type: Application
    Filed: April 24, 2017
    Publication date: November 2, 2017
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hidekazu OKADA
  • Publication number: 20170280014
    Abstract: An image scanning apparatus, comprising: a scanning device; a reference member; a correction unit; a controller; and a storage device, the scanning device comprising light receiving elements and a lens array, wherein the controller executes: a preparation process and an executive process, the preparation process comprising: a white reference data obtaining process to obtain white reference data by scanning a white reference original; and a white storing process to obtain white basic data by averaging the white reference data of a particular number of adjoining light receiving elements, wherein the executive process comprises: a reference member data obtaining process to obtain reference member data by scanning the reference member; a lens fluctuation calculation process to calculate fluctuation data of the correction data based on the reference member data; and a correction data generation process to generate the correction data by adding the fluctuation data to the white basic data.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 28, 2017
    Inventors: Hidekazu OKADA, Takahiro IKENO
  • Patent number: 9307116
    Abstract: An image reader is provided, which includes a first analog front end unit configured to perform A/D conversion for analog signals that are output via a first group of channels of a number resulting from rounding up, to a closest whole number, an average value between a number of at least one channel for a first image reading unit and a number of channels for a second image reading unit, among analog signals output from the first image reading unit and the second image reading unit, and a second analog front end unit configured to perform A/D conversion for analog signals that are output via a second group of channels other than the channels in the first group, among the analog signals output from the first image reading unit and the second image reading unit.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: April 5, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hidekazu Okada
  • Publication number: 20140240791
    Abstract: An image reader is provided, which includes a first analog front end unit configured to perform A/D conversion for analog signals that are output via a first group of channels of a number resulting from rounding up, to a closest whole number, an average value between a number of at least one channel for a first image reading unit and a number of channels for a second image reading unit, among analog signals output from the first image reading unit and the second image reading unit, and a second analog front end unit configured to perform A/D conversion for analog signals that are output via a second group of channels other than the channels in the first group, among the analog signals output from the first image reading unit and the second image reading unit.
    Type: Application
    Filed: May 9, 2014
    Publication date: August 28, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hidekazu OKADA
  • Patent number: 8724180
    Abstract: An image reader is provided, which includes a first analog front end unit configured to perform A/D conversion for analog signals that are output via a first group of channels of a number resulting from rounding up, to a closest whole number, an average value between a number of at least one channel for a first image reading unit and a number of channels for a second image reading unit, among analog signals output from the first image reading unit and the second image reading unit, and a second analog front end unit configured to perform A/D conversion for analog signals that are output via a second group of channels other than the channels in the first group, among the analog signals output from the first image reading unit and the second image reading unit.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: May 13, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hidekazu Okada
  • Patent number: 8654417
    Abstract: An image reading apparatus includes: a transport unit; a first reading unit which reads one surface of a document transported by the transport unit and generates first read data of a front end portion or a rear end portion of the one surface of the document; a second reading unit which reads the other surface of the document transported by the transport unit and generates second read data of a front end portion or a rear end portion of the other surface of the document; an edge detection unit which performs edge detection processing on each of the first read data and the second read data; and a determination unit which determines that there is double feeding of documents by the transport unit when the edge detection unit detects a plurality of edges from at least either the first read data or the second read data.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: February 18, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hidekazu Okada
  • Patent number: 8446645
    Abstract: An image reading apparatus including a sheet conveyance unit that conveys the sheet via a conveyance path; a reading unit, which is movable within a reading area; an image data generation control unit that is configured to control: the reading unit to read the sheet at the reading position while conveying the sheet through the reading position so as to generate an entire image data of the sheet; and generate an entire image data of the sheet; a determination data generation control unit that is configured to: control the reading unit to read the sheet by the image data generation control unit; and generate a partial image data of the sheet including the leading end portion as a determination data; and a determination unit that determines whether or not a state of conveyance of the sheet is normal based on the determination data.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: May 21, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hidekazu Okada
  • Patent number: 8265510
    Abstract: A multi-function apparatus having a plurality of functions relating to an image processing and configured to selectively realize one of the plurality of functions, including: a plurality of operation keys which are operated by a user so as to control the multi-function apparatus; a display device configured to display an operation view for assisting the user in operating the plurality of operation keys; and a display control section configured to control the display device to display the operation view in which a plurality of images respectively representing the plurality of operation keys are displayed, such that an image of each of at least one active key each as an active one of the plurality of operation keys is displayed in the view in a first manner, while an image of each of at least one inactive key each as an inactive one of the plurality of operation keys is displayed in the view in a second manner which is different from the first manner.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: September 11, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hidekazu Okada, Tatsuya Sato
  • Publication number: 20120133998
    Abstract: An image reading apparatus includes: a transport unit; a first reading unit which reads one surface of a document transported by the transport unit and generates first read data of a front end portion or a rear end portion of the one surface of the document; a second reading unit which reads the other surface of the document transported by the transport unit and generates second read data of a front end portion or a rear end portion of the other surface of the document; an edge detection unit which performs edge detection processing on each of the first read data and the second read data; and a determination unit which determines that there is double feeding of documents by the transport unit when the edge detection unit detects a plurality of edges from at least either the first read data or the second read data.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 31, 2012
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hidekazu OKADA
  • Publication number: 20110242614
    Abstract: An image reader is provided, which includes a first analog front end unit configured to perform A/D conversion for analog signals that are output via a first group of channels of a number resulting from rounding up, to a closest whole number, an average value between a number of at least one channel for a first image reading unit and a number of channels for a second image reading unit, among analog signals output from the first image reading unit and the second image reading unit, and a second analog front end unit configured to perform A/D conversion for analog signals that are output via a second group of channels other than the channels in the first group, among the analog signals output from the first image reading unit and the second image reading unit.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 6, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hidekazu OKADA