Patents by Inventor Keiichi Mori

Keiichi Mori 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: 20250017494
    Abstract: An authentication device includes an image acquisition unit, an identification unit, and an authentication unit. The image acquisition unit acquires an image of an eye of a subject. The identification unit identifies the colored pattern of a colored contact lens worn by the subject by comparing a reference image with the image of the eye. The authentication unit identifies the subject, using a feature in a region other than a colored region of the colored pattern in the iris region of the eye.
    Type: Application
    Filed: September 26, 2024
    Publication date: January 16, 2025
    Applicant: NEC Corporation
    Inventors: Takashi SHIBATA, Shoji YACHIDA, Chisato FUNAYAMA, Masato TSUKADA, Yuka OGINO, Keiichi CHONO, Emi KITAGAWA, Yasuhiko YOSHIDA, Yusuke MORI
  • Publication number: 20250017495
    Abstract: An authentication device includes an image acquisition unit, an identification unit, and an authentication unit. The image acquisition unit acquires an image of an eye of a subject. The identification unit identifies the colored pattern of a colored contact lens worn by the subject by comparing a reference image with the image of the eye. The authentication unit identifies the subject, using a feature in a region other than a colored region of the colored pattern in the iris region of the eye.
    Type: Application
    Filed: September 26, 2024
    Publication date: January 16, 2025
    Applicant: NEC CORPORATION
    Inventors: Takashi SHIBATA, Shoji Yachida, Chisato Funayama, Masato Tsukada, Yuka Ogino, Keiichi Chono, Emi Kitagawa, Yasuhiko Yoshida, Yusuke Mori
  • Publication number: 20240305173
    Abstract: A motor control device includes an MCU and a predriver configuring at least a part of a circuit for controlling driving of a motor. The MCU includes a communication timing judgment portion, judging whether or not a timing is to execute a communication between the MCU and the predriver and outputting a communication execution command when the timing is judged to be a timing to execute the communication between the MCU and the predriver; and a communication portion, executing the communication between the MCU and the predriver when the communication execution command is input. The communication timing judgment portion judges a timing that does not overlap with a timing at which noise occurs due to a factor other than the communication between the MCU and the predriver as the timing to execute the communication between the MCU and the predriver.
    Type: Application
    Filed: December 17, 2023
    Publication date: September 12, 2024
    Applicants: MITSUBA Corporation, Honda Motor Co., Ltd.
    Inventors: MIYA YAMADA, KOTA FUKASHIRO, MASAHIRO FUEKI, KEIICHI MORI, YUJI MINODA
  • Patent number: 12019158
    Abstract: A distance-measuring imaging device includes: a controller which repeatedly performs outputting of an emission signal instructing light emission and outputting of an exposure signal instructing exposure; a light source unit which performs light emission a plurality of times in accordance with the emission signal repeatedly outputted by the controller; and an imaging unit which includes a solid-state imaging element for performing exposure a plurality of times in accordance with the exposure signal repeatedly outputted by the controller and which generates an imaging signal through the exposure performed the plurality of times.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: June 25, 2024
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Mitsuhiko Otani, Seiji Nakamura, Keiichi Mori
  • Patent number: 12002978
    Abstract: Provided is an alkaline secondary battery including: a stacked-cell battery in which multiple single cell elements having a configuration of an alkaline secondary battery are stacked; and a box-shaped case made of resin in which the stacked-cell battery is housed vertically. The box-shaped case has a bottom, a pair of long-side walls parallel to the stacked-cell battery, a pair of short-side walls perpendicular to the stacked-cell battery, and a lid part. The lid part has a vulnerable portion having a smaller thickness than other portions of the lid part, the thickness of the vulnerable portion is 0.1 to 1.0 mm, and a proportion of an area of the vulnerable portion with respect to a total area of the lid part in a plan view is 10 to 40%.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: June 4, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Yuichi Gonda, Keiichi Mori, Genta Terazawa
  • Patent number: 11942650
    Abstract: Provided is a battery module including: a metal module housing that has a closed interior space; and multiple secondary batteries that have a vertically long shape and are housed vertically in the interior space and juxtaposed parallel to each other. The module housing has an upper excess space above the secondary batteries in the interior space, the upper excess space being capable of mitigating a pressure increase in the module housing due to ignition of gas generated in the event of an abnormality in the secondary batteries.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: March 26, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Yuichi Gonda, Keiichi Mori, Seiji Hayakawa
  • Publication number: 20240075725
    Abstract: A stretchable film contains an olefin-based elastomer and an inorganic filler, has an air permeability measured by an Oken air permeability tester of 5000 s/100 ml or less, and a permanent strain in at least one direction of 20% or less.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 7, 2024
    Inventor: Keiichi MORI
  • Patent number: 11812173
    Abstract: An imaging apparatus includes a light emitter, a pixel section, and a signal processor which calculates distance information of a subject. The pixel section includes a photoelectric converter, first and second read-out gates, and a plurality of charge accumulators including a first charge accumulator and a second charge accumulator. The first read-out gate is activated in a first period and deactivated in a second period. The second read-out gate is activated in the first period and the second period. The signal processor calculates the distance information based on a total amount of signal charges accumulated in the charge accumulators in the first period and the second period and a difference between an amount of signal charges accumulated in the second charge accumulator in the first period and the second period and an amount of the signal charge accumulated in the first charge accumulator in the first period.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: November 7, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Keiichi Mori, Junichi Matsuo, Mitsuhiko Otani, Mayu Ogawa
  • Publication number: 20230151170
    Abstract: A stretch film (1) contains an olefin elastomer and an inorganic filler (3). Stress at 50% elongation is 6.0 N or more and 15.0 N or less, and moisture permeability is 1000 g/(m2ยท24 h) or more.
    Type: Application
    Filed: March 10, 2021
    Publication date: May 18, 2023
    Inventor: Keiichi MORI
  • Patent number: 11561290
    Abstract: A distance image generating device includes a light emitter that emits light pulses; a light receiver that includes light receiving elements and receives reflected light; a distance calculator that generates a distance image based on an amount of the reflected light; and a light amount adjuster that determines an emission count in accordance with which the light emitter is to emit the light pulses and an exposure count in accordance with which the light receiver is to receive the reflected light based on the distance image and causes the light emitter to emit the light pulses in accordance with the determined emission count and the light receiver to receive the reflected light in accordance with the determined exposure count. The distance calculator calculates the distance based on an amount of the reflected light received at the exposure count by the light receiver.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: January 24, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Taichi Nagata, Keiichi Mori
  • Patent number: 11448757
    Abstract: In a distance measuring device that measures a distance to an object using a round-trip time of light, a solid-state image sensor includes a plurality of pixel groups capable of being exposed independently, and causes each of the plurality of pixel groups to receive, at a different exposure time, reflected light from the object that is originally pulsed radiation light from a light emitter. A light emission and exposure controller cyclically and intermittently exposes each of the plurality of pixel groups of the solid-state image sensor at the different exposure time to obtain pixel signals of types corresponding to a time difference between the reflected light and the radiation light, and a signal processor obtains information about the distance to the object according to pixel signals of adjacent pixels exposed at different exposure times for each of the plurality of pixel groups.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: September 20, 2022
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Keiichi Mori, Seiji Nakamura
  • Patent number: 11402508
    Abstract: A distance-measuring system includes: a plurality of light sources; a light source controller that controls the plurality of light sources; an imager that generates a distance image for each reflection light emitted by the plurality of light sources and reflected by a subject; a reliability level output unit that outputs a reliability level for each distance image; and an image compositor that composites a plurality of distance images. The emission areas of the plurality of light sources which emit light at different angles relative to an optical axis of the imager have a common emission area to which light is emitted in common, and the image compositor exclusively selects pixels to be composited from the plurality of distance images for an outside of the common emission area, and determines pixels to be composited based on the reliability level for the common emission area to generate a composite distance image.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: August 2, 2022
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Koji Matsuura, Keiichi Mori
  • Publication number: 20220163641
    Abstract: A multipath detection device includes: a signal controller; a light emitter; a light receiver; a data holder that holds reference data on a depth in a non-multipath environment; a signal processor that calculates a first depth and a second depth, the first depth being determined based on a ratio between (i) an amount of light received through light exposure during a first timing and (ii) an amount of light received through light exposure during a second timing, the second depth being determined based on a ratio between (iii) an amount of light received through light exposure during a third timing and (iv) an amount of light received through light exposure during a fourth timing; and a determiner that determines presence or absence of multipath using the reference data and a difference between the first depth and the second depth.
    Type: Application
    Filed: June 28, 2021
    Publication date: May 26, 2022
    Inventors: Megumi NAGATA, Keiichi MORI
  • Publication number: 20220123402
    Abstract: Provided is an alkaline secondary battery including: a stacked-cell battery in which multiple single cell elements having a configuration of an alkaline secondary battery are stacked; and a box-shaped case made of resin in which the stacked-cell battery is housed vertically. The box-shaped case has a bottom, a pair of long-side walls parallel to the stacked-cell battery, a pair of short-side walls perpendicular to the stacked-cell battery, and a lid part. The lid part has a vulnerable portion having a smaller thickness than other portions of the lid part, the thickness of the vulnerable portion is 0.1 to 1.0 mm, and a proportion of an area of the vulnerable portion with respect to a total area of the lid part in a plan view is 10 to 40%.
    Type: Application
    Filed: December 28, 2021
    Publication date: April 21, 2022
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yuichi GONDA, Keiichi MORI, Genta TERAZAWA
  • Publication number: 20220123407
    Abstract: Provided is a battery module including: a metal module housing that has a closed interior space; and multiple secondary batteries that have a vertically long shape and are housed vertically in the interior space and juxtaposed parallel to each other. The module housing has an upper excess space above the secondary batteries in the interior space, the upper excess space being capable of mitigating a pressure increase in the module housing due to ignition of gas generated in the event of an abnormality in the secondary batteries.
    Type: Application
    Filed: December 28, 2021
    Publication date: April 21, 2022
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yuichi GONDA, Keiichi MORI, Seiji HAYAKAWA
  • Publication number: 20220075069
    Abstract: A distance-measuring imaging device includes: a drive controller that outputs a light emission control signal for instructing emission of pulsed light and an exposure control signal for instructing exposure to reflected light; an image capturer that includes a plurality of pixels and outputs an exposure signal of each of the plurality of pixels that has been exposed at a timing of the exposure control signal; a pixel calculator that generates a composite signal with a pixel filter that combines exposure signals of adjacent pixels among the plurality of pixels using a weight coefficient for the exposure signal; and a time-of-flight (TOF) calculator that generates a distance image, based on the composite signal. The pixel calculator includes at least two pixel filters having different composite scale factors, and selects the pixel filter from the at least two pixel filters.
    Type: Application
    Filed: November 16, 2021
    Publication date: March 10, 2022
    Inventors: Seiichiro WAKU, Junichi MATSUO, Haruka TAKANO, Taichi NAGATA, Keiichi MORI, Masayuki MASUYAMA
  • Publication number: 20210389433
    Abstract: An imaging apparatus includes: a light emitter that irradiates a subject with light; and a solid-state imaging device that includes pixel units each of which converts received light into a signal charge, and a signal processor that calculates distance information indicating a distance to the subject. When one or more of the pixel units receive reflected light which is the light irradiated by the light emitter and reflected by the subject, the signal processor (i) calculates the distance information for each of the pixel units by a time-of-flight (TOF) method that uses signal charges, each of the signal charges being the signal charge into which the received light is converted by each of the pixel units, and (ii) calculates, for each of one or more of the pixel units, variation information indicating an amount of variation regarding the distance indicated by the distance information.
    Type: Application
    Filed: August 27, 2021
    Publication date: December 16, 2021
    Inventors: Keiichi MORI, Mayu OGAWA
  • Publication number: 20210377478
    Abstract: An imaging apparatus includes a light emitter, a pixel section, and a signal processor which calculates distance information of a subject. The pixel section includes a photoelectric converter, first and second read-out gates, and a plurality of charge accumulators including a first charge accumulator and a second charge accumulator. The first read-out gate is activated in a first period and deactivated in a second period. The second read-out gate is activated in the first period and the second period. The signal processor calculates the distance information based on a total amount of signal charges accumulated in the charge accumulators in the first period and the second period and a difference between an amount of signal charges accumulated in the second charge accumulator in the first period and the second period and an amount of the signal charge accumulated in the first charge accumulator in the first period.
    Type: Application
    Filed: August 11, 2021
    Publication date: December 2, 2021
    Inventors: Keiichi MORI, Junichi MATSUO, Mitsuhiko OTANI, Mayu OGAWA
  • Patent number: 11163043
    Abstract: A distance measuring device includes: a light emitter which emits light from a light source to a target object; a light receiver which receives reflected light in a group of pixels two-dimensionally disposed, the reflection light being generated through reflection of the light emitted from the light emitter on the target object; a synthesizer which generates a synthesized signal by synthesizing pixel signals read from pixels exposed at different exposure intervals to generate a synthesized signal; and a distance arithmetic operator which calculates a value of distance to the target object based on the synthesized signal and the difference in time between emission and reception of the light.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 2, 2021
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Mayu Nishikawa, Keiichi Mori
  • Publication number: 20210190955
    Abstract: A distance-measuring imaging device includes: a controller which repeatedly performs outputting of an emission signal instructing light emission and outputting of an exposure signal instructing exposure; a light source unit which performs light emission a plurality of times in accordance with the emission signal repeatedly outputted by the controller; and an imaging unit which includes a solid-state imaging element for performing exposure a plurality of times in accordance with the exposure signal repeatedly outputted by the controller and which generates an imaging signal through the exposure performed the plurality of times.
    Type: Application
    Filed: March 5, 2021
    Publication date: June 24, 2021
    Inventors: Mitsuhiko OTANI, Seiji NAKAMURA, Keiichi MORI