Patents by Inventor Akihiro Mizutani

Akihiro Mizutani 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).

  • Publication number: 20240080185
    Abstract: A result confirmation unit (204) computes a state space probability that is a probability that a verification target device (300) has not correctly prepared a state space having a quantum state stored therein, a Pauli measurement probability that is a probability that the verification target device (300) has not correctly performed Pauli Z measurement and Pauli X measurement, and a magic state probability that is a probability that the verification target device (300) has not generated a magic state of CCZ. Then, using the state space probability, the Pauli measurement probability, and the magic state probability, the result confirmation unit (204) computes a degree of approximation between a quantum state and the magic state of CCZ at the verification target device (300) and measurement accuracies of the Pauli Z measurement and the Pauli X measurement on the quantum state at the verification target device (300).
    Type: Application
    Filed: October 31, 2023
    Publication date: March 7, 2024
    Applicants: Mitsubishi Electric Corporation, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Akihiro MIZUTANI, Ryo HIROMASA, Yusuke AIKAWA, Yuki TAKEUCHI, Seiichiro TANI
  • Publication number: 20230010795
    Abstract: A random-number generation unit (301) generates a random bit string. A light-source control unit (302) generates as transmission signal, using a light source, light pulses each of which corresponds to each bit value in the random bit string generated by the random-number generation unit, and emits the light pulses to a reception apparatus. A transmission-side information acquisition unit (305) acquires from a light-source measurement apparatus which has measured the light pulses and has estimated a physical characteristic, the physical characteristic, and acquires from the reception apparatus, a signal reception result of the transmission signal. A transmission-side information generation unit (303) generates a secret key, using the random bit string, the physical characteristic, and the signal reception result.
    Type: Application
    Filed: September 16, 2022
    Publication date: January 12, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventor: Akihiro MIZUTANI
  • Patent number: 11243171
    Abstract: A plurality of illumination elements obliquely irradiating an inspection target region in irradiation directions different from each other and equiangularly spaced around an image capturing part in a state where each of a low-angle, intermediate-angle, and high-angle illumination parts has a different irradiation angle are sequentially turned on and off. An image of the image captured region is captured every time each of the plurality of illumination elements is turned on. A determination image generation part specifies an inspection-excluded region based on at least one of maximum luminance image data and minimum luminance image data of three types of captured image data each corresponding to an irradiation angle of each illumination part and generates determination image data for the image captured region other than the inspection-excluded region. A defect determination part determines existence of a defect based on the determination image data.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: February 8, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Takafumi Terahai, Akihiro Mizutani
  • Patent number: 11226295
    Abstract: A plurality of illumination elements configured to irradiate an inspection target region with illumination light obliquely at an identical angle in respective directions different from each other and equiangularly spaced from each other around an image capturing part are sequentially turned on and off. The image capturing part generates a plurality of pieces of captured image data by capturing an image of the target region in a normal direction when each of the plurality of illumination elements is turned on. A determination image generation part generates minimum luminance image data in which a minimum value among luminance values of the plurality of pieces of captured image data at an identical pixel position is set as a luminance value at the pixel position, and then generates determination image data based on the minimum luminance image data. A defect determination part determines existence of a defect based on the determination image data.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: January 18, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Anna Koseki, Akihiro Mizutani, Takafumi Terahai
  • Publication number: 20210018446
    Abstract: A plurality of illumination elements obliquely irradiating an inspection target region in irradiation directions different from each other and equiangularly spaced around an image capturing part in a state where each of a low-angle, intermediate-angle, and high-angle illumination parts has a different irradiation angle are sequentially turned on and off. An image of the image captured region is captured every time each of the plurality of illumination elements is turned on. A determination image generation part specifies an inspection-excluded region based on at least one of maximum luminance image data and minimum luminance image data of three types of captured image data each corresponding to an irradiation angle of each illumination part and generates determination image data for the image captured region other than the inspection-excluded region. A defect determination part determines existence of a defect based on the determination image data.
    Type: Application
    Filed: October 2, 2020
    Publication date: January 21, 2021
    Applicant: NGK Insulators, Ltd.
    Inventors: Takafumi TERAHAI, Akihiro MIZUTANI
  • Patent number: 10801835
    Abstract: A method for inspecting an end face, comprising: an arrangement step of arranging a honeycomb structure having a partition wall extending from a first end face to a second end face, at a predetermined position using the second end face as a placement face; a first image data for processing acquisition step of acquiring first image data for processing while irradiating the first end face with light having an angle of 40° or more, the angle being an angle formed between the light and an axis being perpendicular to the placement face of the honeycomb structure; a second image data for processing acquisition step of acquiring second image data for processing while irradiating the first end face with light having an angle of less than 40°; and a crack detection step of detecting a crack by comparing the first image data for processing with the second image data for processing.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: October 13, 2020
    Assignee: NGK Insulators, Ltd.
    Inventors: Ayumi Watanabe, Akihiro Mizutani
  • Patent number: 10778872
    Abstract: According to one embodiment, an image processing apparatus includes an image reading device, a storage device, and a control unit. The image reading device reads an image on a sheet. The storage device stores information. The control unit that determines a detection area of an encoded image based on a teacher image which is an image read from a predetermined teacher sheet by the image reading device, records information indicating the detection area in the storage device, detects an encoded image in the detection area among the images read from a sheet to be read after the teacher sheet, and decodes the detected encoded image.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: September 15, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Hiroshi Watanabe, Akihiro Mizutani, Takahiro Hagiwara, Kazuhiro Ogura, Kazuhiro Kamimura, Yoshinori Sato, Hajime Tomizawa, Yusuke Hamada, Sho Sakuma, Koji Endo, Ryo Takimura, Takuya Nishigaki
  • Publication number: 20200162625
    Abstract: In accordance with an embodiment, the image forming apparatus comprises a display section, a connection section and a controller. The connection section connects with a device having a storage section. The controller detects connection and disconnection with the connection section and does not display a first screen displayed on the display section due to the connection with the device if the disconnection is detected.
    Type: Application
    Filed: January 23, 2020
    Publication date: May 21, 2020
    Inventors: Akihiro Mizutani, Hiroshi Watanabe, Toshihiro Ida, Kazuhiro Ogura, Takahiro Hagiwara, Kazuhiro Kamimura, Yusuke Hamada, Koji Endo
  • Patent number: 10475177
    Abstract: An inspection method for a surface of a ceramic body capable of determining any crack more reliably than conventionally done is provided. The method includes a step of performing image capturing of an illuminated region of an inspection surface being illuminated with at least one of first and second illumination light from mutually different directions sandwiching an image capturing means, a step of generating a determination image, and a step of performing determination. When a first determination image is generated based on a first image capturing result obtained under illumination at least with the first illumination light, and a second determination image is generated based on a second image capturing result under illumination at least with the second illumination light, those images are generated so that determination of the presence or absence of any crack can be performed based on a difference between formation manners of shadow regions in those images.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: November 12, 2019
    Assignee: NGK Insulators, Ltd.
    Inventors: Ryota Kurahashi, Akihiro Mizutani, Takafumi Terahai
  • Publication number: 20190342469
    Abstract: According to one embodiment, an image processing apparatus includes an image reading device, a storage device, and a control unit. The image reading device reads an image on a sheet. The storage device stores information. The control unit that determines a detection area of an encoded image based on a teacher image which is an image read from a predetermined teacher sheet by the image reading device, records information indicating the detection area in the storage device, detects an encoded image in the detection area among the images read from a sheet to be read after the teacher sheet, and decodes the detected encoded image.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Hiroshi WATANABE, Akihiro MIZUTANI, Takahiro HAGIWARA, Kazuhiro OGURA, Kazuhiro KAMIMURA, Yoshinori SATO, Hajime TOMIZAWA, Yusuke HAMADA, Sho SAKUMA, Koji ENDO, Ryo TAKIMURA, Takuya NISHIGAKI
  • Publication number: 20190265172
    Abstract: A plurality of illumination elements configured to irradiate an inspection target region with illumination light obliquely at an identical angle in respective directions different from each other and equiangularly spaced from each other around an image capturing part are sequentially turned on and off. The image capturing part generates a plurality of pieces of captured image data by capturing an image of the target region in a normal direction when each of the plurality of illumination elements is turned on. A determination image generation part generates minimum luminance image data in which a minimum value among luminance values of the plurality of pieces of captured image data at an identical pixel position is set as a luminance value at the pixel position, and then generates determination image data based on the minimum luminance image data. A defect determination part determines existence of a defect based on the determination image data.
    Type: Application
    Filed: May 8, 2019
    Publication date: August 29, 2019
    Applicant: NGK Insulators, Ltd.
    Inventors: Anna Koseki, Akihiro Mizutani, Takafumi Terahai
  • Publication number: 20190199889
    Abstract: According to one embodiment, an image processing apparatus includes an image reading device, a storage device, and a control unity. The image reading device reads an image on a sheet. The storage device stores information. The control unit that determines a detection area of an encoded image based on a teacher image which is an image read from a predetermined teacher sheet by the image reading device, records information indicating the detection area in the storage device, detects an encoded image in the detection area among the images read from a sheet to be read after the teacher sheet, and decodes the detected encoded image.
    Type: Application
    Filed: June 8, 2018
    Publication date: June 27, 2019
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Hiroshi WATANABE, Akihiro Mizutani, Takahiro Hagiwara, Kazuhiro Ogura, Kazuhiro Kamimura, Yoshinori Sato, Hajime Tomizawa, Yusuke Hamada, Sho Sakuma, Koji Endo, Ryo Takimura, Takuya Nishigaki
  • Patent number: 10306095
    Abstract: An image printing apparatus includes a control section configured to receive original image data, analyze the original image data to acquire address information included in the original image data, and generate a two-dimensional code corresponding to the acquired address information. A printer is then controlled to print the generated two-dimensional code and the original image data.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: May 28, 2019
    Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki Kaisha
    Inventors: Akihiro Mizutani, Hiroshi Watanabe, Toshihiro Ida, Kazuhiro Ogura, Takahiro Hagiwara, Kazuhiro Kamimura, Yusuke Hamada, Koji Endo, Yoshinori Sato, Sho Sakuma
  • Publication number: 20190045006
    Abstract: A display apparatus includes a display unit, a communication unit configured to periodically receive synchronization information for synchronizing a screen of the display unit with a screen of another display apparatus, and a control unit configured to control the display unit to display a first screen corresponding to the received synchronization information when the control unit is not carrying out a predetermined operation, and a second screen that does not correspond to the synchronization information when the control unit is carrying out the predetermined operation.
    Type: Application
    Filed: October 8, 2018
    Publication date: February 7, 2019
    Inventors: Akihiro Mizutani, Takahiro Hagiwara, Shinji Makishima, Toshihiro Ida, Yusuke Hamada, Hiroshi Watanabe, Ken Sakuta
  • Publication number: 20190028603
    Abstract: An image printing apparatus includes a control section configured to receive original image data, analyze the original image data to acquire address information included in the original image data, and generate a two-dimensional code corresponding to the acquired address information. A printer is then controlled to print the generated two-dimensional code and the original image data.
    Type: Application
    Filed: March 15, 2018
    Publication date: January 24, 2019
    Inventors: Akihiro MIZUTANI, Hiroshi WATANABE, Toshihiro IDA, Kazuhiro OGURA, Takahiro HAGIWARA, Kazuhiro KAMIMURA, Yusuke HAMADA, Koji ENDO, Yoshinori SATO, Sho SAKUMA
  • Patent number: 10165147
    Abstract: An image processing apparatus includes a scanner, a communication interface, and a controller. The controller is configured to generate property and setting data of image data that is generated based on image scanning by the scanner, and control the communication interface to transmit the image data and the property and setting data thereof to a server connected to the image processing apparatus through a network, so that the image data and the property and setting data thereof are stored therein in association with each other.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: December 25, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Toshihiro Ida, Hiroshi Watanabe, Kazuhiro Ogura, Takahiro Hagiwara, Shinji Makishima, Akihiro Mizutani, Yusuke Hamada, Ken Sakuta
  • Patent number: 10063729
    Abstract: According to one embodiment, there is provided a terminal that includes a memory and a processor. The memory stores authentication-related information indicating that a first cloud completes approval of authentication, which is acquired by a terminal from the first cloud that transmits an instruction to perform a job to a job-performing apparatus of which registration is completed based on an instruction from the terminal, if the registration of the job-performing apparatus is completed. The processor retains the authentication-related information in a storage area if the job-performing apparatus is registered with the first cloud, and, if the authentication-related information is not present in the memory after the approval by the first cloud, acquires the authentication-related information from the storage area.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: August 28, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Takahiro Hagiwara, Hiroshi Watanabe, Akihiro Mizutani, Toshihiro Ida, Yusuke Hamada, Koji Endo, Kazuhiro Kamimura, Kazuhiro Ogura
  • Publication number: 20180238683
    Abstract: A method for inspecting an end face, comprising: an arrangement step of arranging a honeycomb structure having a partition wall extending from a first end face to a second end face, at a predetermined position using the second end face as a placement face; a first image data for processing acquisition step of acquiring first image data for processing while irradiating the first end face with light having an angle of 40° or more, the angle being an angle formed between the light and an axis being perpendicular to the placement face of the honeycomb structure; a second image data for processing acquisition step of acquiring second image data for processing while irradiating the first end face with light having an angle of less than 40°; and a crack detection step of detecting a crack by comparing the first image data for processing with the second image data for processing.
    Type: Application
    Filed: April 19, 2018
    Publication date: August 23, 2018
    Applicant: NGK INSULATORS, LTD.
    Inventors: Ayumi WATANABE, Akihiro Mizutani
  • Publication number: 20180227454
    Abstract: According to one embodiment, there is provided a terminal that includes a memory and a processor. The memory stores authentication-related information indicating that a first cloud completes approval of authentication, which is acquired by a terminal from the first cloud that transmits an instruction to perform a job to a job-performing apparatus of which registration is completed based on an instruction from the terminal, if the registration of the job-performing apparatus is completed. The processor retains the authentication-related information in a storage area if the job-performing apparatus is registered with the first cloud, and, if the authentication-related information is not present in the memory after the approval by the first cloud, acquires the authentication-related information from the storage area.
    Type: Application
    Filed: March 17, 2017
    Publication date: August 9, 2018
    Inventors: Takahiro Hagiwara, Hiroshi Watanabe, Akihiro Mizutani, Toshihiro Ida, Yusuke Hamada, Koji Endo, Kazuhiro Kamimura, Kazuhiro Ogura
  • Patent number: 10042591
    Abstract: According to one embodiment, an image forming apparatus includes a processor, a network interface and a display device. The network interface under processor control acquires identification information of a different image forming apparatus on which a user is determined to have use authority based on user identification information of the user. The network interface under processor control also acquires an image forming job registered with the different image forming apparatus based on the acquired identification information of the different image forming apparatus. The display device under processor control displays the image forming job acquired by the network interface.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: August 7, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Takahiro Hagiwara, Shinji Makishima, Koji Endo, Hiroshi Watanabe, Akihiro Mizutani, Toshihiro Ida, Yusuke Hamada, Kazuhiro Ogura, Takeo Nishijima