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).
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Publication number: 20240080185Abstract: 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: ApplicationFiled: October 31, 2023Publication date: March 7, 2024Applicants: Mitsubishi Electric Corporation, NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Akihiro MIZUTANI, Ryo HIROMASA, Yusuke AIKAWA, Yuki TAKEUCHI, Seiichiro TANI
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Publication number: 20230010795Abstract: 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: ApplicationFiled: September 16, 2022Publication date: January 12, 2023Applicant: Mitsubishi Electric CorporationInventor: Akihiro MIZUTANI
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Patent number: 11243171Abstract: 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: GrantFiled: October 2, 2020Date of Patent: February 8, 2022Assignee: NGK Insulators, Ltd.Inventors: Takafumi Terahai, Akihiro Mizutani
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Patent number: 11226295Abstract: 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: GrantFiled: May 8, 2019Date of Patent: January 18, 2022Assignee: NGK Insulators, Ltd.Inventors: Anna Koseki, Akihiro Mizutani, Takafumi Terahai
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Publication number: 20210018446Abstract: 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: ApplicationFiled: October 2, 2020Publication date: January 21, 2021Applicant: NGK Insulators, Ltd.Inventors: Takafumi TERAHAI, Akihiro MIZUTANI
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Patent number: 10801835Abstract: 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: GrantFiled: April 19, 2018Date of Patent: October 13, 2020Assignee: NGK Insulators, Ltd.Inventors: Ayumi Watanabe, Akihiro Mizutani
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Patent number: 10778872Abstract: 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: GrantFiled: July 16, 2019Date of Patent: September 15, 2020Assignee: TOSHIBA TEC KABUSHIKI KAISHAInventors: Hiroshi Watanabe, Akihiro Mizutani, Takahiro Hagiwara, Kazuhiro Ogura, Kazuhiro Kamimura, Yoshinori Sato, Hajime Tomizawa, Yusuke Hamada, Sho Sakuma, Koji Endo, Ryo Takimura, Takuya Nishigaki
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Publication number: 20200162625Abstract: 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: ApplicationFiled: January 23, 2020Publication date: May 21, 2020Inventors: Akihiro Mizutani, Hiroshi Watanabe, Toshihiro Ida, Kazuhiro Ogura, Takahiro Hagiwara, Kazuhiro Kamimura, Yusuke Hamada, Koji Endo
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Patent number: 10475177Abstract: 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: GrantFiled: September 6, 2017Date of Patent: November 12, 2019Assignee: NGK Insulators, Ltd.Inventors: Ryota Kurahashi, Akihiro Mizutani, Takafumi Terahai
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Publication number: 20190342469Abstract: 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: ApplicationFiled: July 16, 2019Publication date: November 7, 2019Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Hiroshi WATANABE, Akihiro MIZUTANI, Takahiro HAGIWARA, Kazuhiro OGURA, Kazuhiro KAMIMURA, Yoshinori SATO, Hajime TOMIZAWA, Yusuke HAMADA, Sho SAKUMA, Koji ENDO, Ryo TAKIMURA, Takuya NISHIGAKI
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Publication number: 20190265172Abstract: 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: ApplicationFiled: May 8, 2019Publication date: August 29, 2019Applicant: NGK Insulators, Ltd.Inventors: Anna Koseki, Akihiro Mizutani, Takafumi Terahai
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Publication number: 20190199889Abstract: 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: ApplicationFiled: June 8, 2018Publication date: June 27, 2019Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Hiroshi WATANABE, Akihiro Mizutani, Takahiro Hagiwara, Kazuhiro Ogura, Kazuhiro Kamimura, Yoshinori Sato, Hajime Tomizawa, Yusuke Hamada, Sho Sakuma, Koji Endo, Ryo Takimura, Takuya Nishigaki
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Patent number: 10306095Abstract: 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: GrantFiled: March 15, 2018Date of Patent: May 28, 2019Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki KaishaInventors: Akihiro Mizutani, Hiroshi Watanabe, Toshihiro Ida, Kazuhiro Ogura, Takahiro Hagiwara, Kazuhiro Kamimura, Yusuke Hamada, Koji Endo, Yoshinori Sato, Sho Sakuma
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Publication number: 20190045006Abstract: 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: ApplicationFiled: October 8, 2018Publication date: February 7, 2019Inventors: Akihiro Mizutani, Takahiro Hagiwara, Shinji Makishima, Toshihiro Ida, Yusuke Hamada, Hiroshi Watanabe, Ken Sakuta
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Publication number: 20190028603Abstract: 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: ApplicationFiled: March 15, 2018Publication date: January 24, 2019Inventors: Akihiro MIZUTANI, Hiroshi WATANABE, Toshihiro IDA, Kazuhiro OGURA, Takahiro HAGIWARA, Kazuhiro KAMIMURA, Yusuke HAMADA, Koji ENDO, Yoshinori SATO, Sho SAKUMA
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Patent number: 10165147Abstract: 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: GrantFiled: August 30, 2016Date of Patent: December 25, 2018Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Toshihiro Ida, Hiroshi Watanabe, Kazuhiro Ogura, Takahiro Hagiwara, Shinji Makishima, Akihiro Mizutani, Yusuke Hamada, Ken Sakuta
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Patent number: 10063729Abstract: 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: GrantFiled: March 17, 2017Date of Patent: August 28, 2018Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Takahiro Hagiwara, Hiroshi Watanabe, Akihiro Mizutani, Toshihiro Ida, Yusuke Hamada, Koji Endo, Kazuhiro Kamimura, Kazuhiro Ogura
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Publication number: 20180238683Abstract: 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: ApplicationFiled: April 19, 2018Publication date: August 23, 2018Applicant: NGK INSULATORS, LTD.Inventors: Ayumi WATANABE, Akihiro Mizutani
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Publication number: 20180227454Abstract: 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: ApplicationFiled: March 17, 2017Publication date: August 9, 2018Inventors: Takahiro Hagiwara, Hiroshi Watanabe, Akihiro Mizutani, Toshihiro Ida, Yusuke Hamada, Koji Endo, Kazuhiro Kamimura, Kazuhiro Ogura
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Patent number: 10042591Abstract: 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: GrantFiled: December 13, 2016Date of Patent: August 7, 2018Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Takahiro Hagiwara, Shinji Makishima, Koji Endo, Hiroshi Watanabe, Akihiro Mizutani, Toshihiro Ida, Yusuke Hamada, Kazuhiro Ogura, Takeo Nishijima