Patents by Inventor Eiji Muramatsu

Eiji Muramatsu 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: 11476395
    Abstract: A light source that emits light, wherein, in coordinates in a CIE 1931 chromaticity diagram, the light has a color purity included in a region of 2 to 50 in a region surrounded by a line segment WB and a line segment WG that connect coordinates W (0.33, 0.33) indicating an achromatic color with coordinates B (0.091, 0.133) of 480 nm and coordinates G (0.373, 0.624) of 560 nm on a spectral locus, and the spectral locus, and has an area occupied by a continuous spectral wavelength in a wavelength region of 480 to 540 nm, of 15% or more relative to an area of an overall spectral wavelength of the light source at 380 to 780 nm.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: October 18, 2022
    Assignees: ASAHI RUBBER INC., NATIONAL UNIVERSITY CORPORATION SAITAMA UNIVERSITY
    Inventors: Naoya Mashiko, Takashi Kanahira, Masutsugu Tasaki, Eiji Ishiguro, Keiichi Watanuki, Keiichi Muramatsu, Kazunori Kaede
  • Patent number: 11150713
    Abstract: An information processing device includes: a state determination unit that determines a change in a state of connection between the information processing device and an external device or a power supply; a cause selection unit that selects from a plurality of choices, a cause of the determined change in the state of connection; and a processing unit that performs a process in accordance with the selected choice.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: October 19, 2021
    Assignee: NEC CORPORATION
    Inventors: Jun Kobayashi, Eiji Muramatsu
  • Patent number: 10708561
    Abstract: To provide a POS terminal or the like which enables adjustment of white balance of an object to be sufficiently accurate even in the change of external light illuminating the object. The POS terminal includes: an image capture unit which captures an object including a plurality of respectively different reference colors and generates an image; a comparison unit which compares a portion of the image relating to each of the reference colors with a standard image which is a standard of the reference colors; and an adjustment unit which adjusts white balance based on a result of the comparison.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: July 7, 2020
    Assignee: NEC Corporation
    Inventors: Takanori Inoue, Hideo Yokoi, Jun Kobayashi, Eiji Muramatsu, Hiroshi Yamada, Kota Iwamoto, Tetsuo Inoshita, Soma Shiraishi
  • Patent number: 10423946
    Abstract: A POS terminal device capable of improving a recognition rate in a process for recognizing a commodity irrespective of the surrounding environment is provided. A POS terminal device (1) includes a brightness measurement unit (2), an irradiation unit (4), an image pickup unit (6), and a recognition process unit (8). The brightness measurement unit (2) measures the brightness of environmental light around the POS terminal device (1). The irradiation unit (4) irradiates a commodity with light, the light being adjusted according to the brightness of the environmental light measured by the brightness measurement unit (2). The image pickup unit (6) shoots the commodity irradiated with the light by the irradiation unit (4) and thereby generates an image thereof. The recognition process unit (8) performs a process for recognizing the commodity based on the image generated by the shooting performed by the image-pickup unit (6).
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: September 24, 2019
    Assignee: NEC Corporation
    Inventors: Jun Kobayashi, Eiji Muramatsu, Kota Iwamoto, Soma Shiraishi, Tetsuo Inoshita
  • Patent number: 10318945
    Abstract: A POS-terminal device includes: a housing that is provided with a product-reading device including an imaging unit configured to capture a product to generate an image; a product-input unit configured to input the product, the product-input unit including a product-reading frame configured to define an outer edge of an imaging area of the imaging unit; and a reflector configured to reflect a subject image of the product passed over the imaging area, outside the housing.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: June 11, 2019
    Assignee: NEC Corporation
    Inventors: Kazuki Tsuchimochi, Kota Iwamoto, Tetsuo Inoshita, Soma Shiraishi, Hiroshi Yamada, Jun Kobayashi, Eiji Muramatsu, Michio Nagai, Hideo Yokoi
  • Publication number: 20190041523
    Abstract: An advanced map DB 43 stored on a server device 4 includes pulse type information that is configuration information for detecting a landmark using a LIDAR 2. By sending request information D1 including own vehicle position information, the vehicle mounted device 1 receives response information D2 including pulse type information corresponding to a landmark around the own vehicle position and controls the LIDAR 2 on the basis of the received pulse type information.
    Type: Application
    Filed: February 19, 2016
    Publication date: February 7, 2019
    Inventors: Eiji MURAMATSU, Yoshinori ABE, Kazutoshi KITANO, Kenji MITO, Takeshi KODA
  • Publication number: 20180225831
    Abstract: The present invention provides an image processing an image processing device. The image processing device obtains first image including a specific object such as confidential documents or a person, and generate second image such that the particular object is encrypted. Then, the image processing device outputs first image or second image according to the viewer's attribute. This achieves protection of the secret object appearing in first image while the viewer is able to referring to the image freely.
    Type: Application
    Filed: August 3, 2016
    Publication date: August 9, 2018
    Applicant: NEC Corporation
    Inventor: Eiji MURAMATSU
  • Publication number: 20180181940
    Abstract: A POS terminal device is provided with: a memory unit for storing subject information in which a subject and specific information are associated; an imaging unit for imaging a subject and generating an image; and a specific information estimation unit for estimating, on the basis of the subject information, the specific information associated with the subject imaged by the imaging unit.
    Type: Application
    Filed: March 25, 2015
    Publication date: June 28, 2018
    Inventors: Nozomu FUJIWARA, KOTA IWAMOTO, tetsuo inoshita, SOMA SHIRAISHI, HIROSHI YAMADA, JUN KOBAYASHI, EIJI MURAMATSU
  • Publication number: 20180089725
    Abstract: A product information management apparatus includes a product specifying unit that specifies a product that was approached by a user in an actual store; an association unit that generates association information, which is information associating the product specified by the product specifying unit with the user or related information relating to the information associating the product with the user; and a recording unit that records the association information in a memory unit so as to be able to be viewed by the user.
    Type: Application
    Filed: March 18, 2016
    Publication date: March 29, 2018
    Applicant: NEC CORPORATION
    Inventors: Eiji MURAMATSU, Jun KOBAYASHI, Shinichi ANAMI
  • Publication number: 20170185985
    Abstract: When the presence of a subject is detected within the image-capturing range of an image sensor, a frame image is created to acquire the identifier of a corresponding product. A feature quantity of the frame image is stored in a storage device in connection with the acquired identifier, and product information associated with the identifier is acquired from a product information DB to perform sales processing.
    Type: Application
    Filed: March 25, 2015
    Publication date: June 29, 2017
    Applicant: NEC Corporation
    Inventors: Tomoyuki HARADA, Kota IWAMOTO, Tetsuo INOSHITA, Soma SHIRAISHI, Hiroshi YAMADA, Jun KOBAYASHI, Eiji MURAMATSU, Hideo YOKOI
  • Publication number: 20170180693
    Abstract: To provide a POS terminal or the like which enables adjustment of white balance of an object to be sufficiently accurate even in the change of external light illuminating the object. The POS terminal includes: an image capture unit which captures an object including a plurality of respectively different reference colors and generates an image; a comparison unit which compares a portion of the image relating to each of the reference colors with a standard image which is a standard of the reference colors; and an adjustment unit which adjusts white balance based on a result of the comparison.
    Type: Application
    Filed: March 18, 2015
    Publication date: June 22, 2017
    Inventors: Takanori INOUE, Hideo YOKOI, Jun KOBAYASHI, Eiji MURAMATSU, Hiroshi YAMADA, Kota IWAMOTO, Tetsuo INOSHITA, Soma SHIRAISHI
  • Publication number: 20170178108
    Abstract: A POS-terminal device includes: a housing that is provided with a product-reading device including an imaging unit configured to capture a product to generate an image; a product-input unit configured to input the product, the product-input unit including a product-reading frame configured to define an outer edge of an imaging area of the imaging unit; and a reflector configured to reflect a subject image of the product passed over the imaging area, outside the housing.
    Type: Application
    Filed: March 25, 2015
    Publication date: June 22, 2017
    Inventors: Kazuki TSUCHIMOCHI, Kota IWAMOTO, Tetsuo INOSHITA, Soma SHIRAISHI, Hiroshi YAMADA, Jun KOBAYASHI, Eiji MURAMATSU, Michio NAGAI, Hideo YOKOI
  • Publication number: 20170178107
    Abstract: An information processing apparatus includes: a determining unit that determines whether at least a part of an object is present in an image captured or not; and a control unit that performs a control so as to display, on a display apparatus, a guiding sign for guiding the object in the image to a predetermined direction in a case that at least a part of the object is present in the image.
    Type: Application
    Filed: February 26, 2015
    Publication date: June 22, 2017
    Inventors: Kota IWAMOTO, Tetsuo INOSHITA, Soma SHIRAISHI, Hiroshi YAMADA, Jun KOBAYASHI, Eiji MURAMATSU, Hideo YOKOI, Tsugunori TAKATA
  • Publication number: 20170068945
    Abstract: A POS terminal apparatus, a POS system, a commodity recognition method, and a non-transitory computer readable medium storing a program capable of efficiently performing the commodity recognition are provided. The POS terminal apparatus (1) includes a movement-trajectory detection unit (2), a settlement-customer identification unit (4), and a commodity recognition process unit (6). The movement-trajectory detection unit (2) detects movement trajectories of customers in a store by using images taken by at least one image-pickup apparatus. The settlement-customer identification unit (4) identifies a customer who is about to make a settlement for a commodity. The commodity recognition process unit (6) performs a process for recognizing the commodity for the settlement, in which commodities displayed at positions corresponding to the detected movement trajectory for the customer identified by the settlement-customer identification unit (4) are set as candidates.
    Type: Application
    Filed: November 5, 2014
    Publication date: March 9, 2017
    Applicant: NEC Corporation
    Inventors: Kazuki TSUCHIMOCHI, Eiji MURAMATSU, Michio NAGAI, Shinichi ANAMI, Jun KOBAYASHI
  • Publication number: 20170011378
    Abstract: A POS terminal device capable of extracting a commodity image from an image taken by image pickup means in order to contribute to an improvement in the recognition rate of commodities is provided. A POS terminal device (1) includes at least one image pickup unit (2) and a 3D image generation unit (4), and a commodity image extraction unit (6). The image pickup unit (2) generates a plurality of 2D images by shooting a commodity from a plurality of viewpoints, each of the plurality of 2D images corresponding to a respective one of the plurality of viewpoints. The 3D image generation unit (4) generates a 3D image including an image of the commodity by using the plurality of 2D images generated by the image pickup unit (2). The commodity image extraction unit (6) extracts the image of the commodity by using the 3D image.
    Type: Application
    Filed: November 7, 2014
    Publication date: January 12, 2017
    Applicant: NEC Corporation
    Inventors: Takanori INOUE, Eiji MURAMATSU, Michio NAGAI, Shinichi ANAMI, Jun KOBAYASHI
  • Publication number: 20160292662
    Abstract: A POS terminal device capable of improving a recognition rate in a process for recognizing a commodity irrespective of the surrounding environment is provided. A POS terminal device (1) includes a brightness measurement unit (2), an irradiation unit (4), an image pickup unit (6), and a recognition process unit (8). The brightness measurement unit (2) measures the brightness of environmental light around the POS terminal device (1). The irradiation unit (4) irradiates a commodity with light, the light being adjusted according to the brightness of the environmental light measured by the brightness measurement unit (2). The image pickup unit (6) shoots the commodity irradiated with the light by the irradiation unit (4) and thereby generates an image thereof. The recognition process unit (8) performs a process for recognizing the commodity based on the image generated by the shooting performed by the image-pickup unit (6).
    Type: Application
    Filed: November 11, 2014
    Publication date: October 6, 2016
    Inventors: Jun Kobayashi, Eiji Muramatsu, Kota Iwamoto, Soma Shiraishi, Tetsuo Inoshita
  • Patent number: 9073449
    Abstract: An efficiency map generating apparatus (100) generates an efficiency map of motors (M) connected to drive wheels of a mobile body and includes an instructed torque detecting unit (111) that detects an instructed torque input for the multiple motors (M), a torque distributing unit (112) that distributes torque to each of the multiple motors (M) based on the instructed torque, a power consumption detecting unit (113) that detects power consumption of the motors (M), a rotation count detecting unit (103) that detects the rotation counts of the motors (M), and an efficiency map generating unit (114) that generates a motor efficiency map (115) based on the torque in multiple combinations, the power consumption, and the rotation counts, where the torque distributing unit (112) causes any of the multiple motors (M) to generate regenerative torque.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: July 7, 2015
    Assignee: PIONEER CORPORATION
    Inventors: Kazutoshi Kitano, Masahiro Kato, Yoshikazu Takeuchi, Kazunobu Hashimoto, Chihiro Kawabata, Eiji Muramatsu
  • Patent number: 9045057
    Abstract: An efficiency map generating apparatus (100) generates an efficiency map of motors (M) connected to drive wheels of a mobile body and includes an instructed torque detecting unit (111) that detects an instructed torque input for the multiple motors (M), a torque distributing unit (112) that distributes torque to each of the multiple motors (M) based on the instructed torque, a power consumption detecting unit (113) that detects power consumption of the motors (M), a rotation count detecting unit (103) that detects the rotation counts of the motors (M), and an efficiency map generating unit (114) that generates a motor efficiency map (115) based on the torque in multiple combinations, the power consumption, and the rotation counts, where the torque distributing unit (112) causes any of the multiple motors (M) to generate regenerative torque.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: June 2, 2015
    Assignee: PIONEER CORPORATION
    Inventors: Kazutoshi Kitano, Masahiro Kato, Yoshikazu Takeuchi, Kazunobu Hashimoto, Chihiro Kawabata, Eiji Muramatsu
  • Patent number: 9014897
    Abstract: A torque distribution apparatus acquires instructed torque input and a motor efficiency map; detects vehicular speed and drive wheel rotational speed; calculates based on the speeds, a relational expression of a slip rate at drive wheels and a friction coefficient; creates based on the relational expression, a performance curve expression that indicates torque-drive wheel rotational speed relations, superimposes the performance curve expression on the motor efficiency map, creates an efficiency variation expression that indicates for each vehicular speed, the torque and efficiency values of the motor efficiency map, and calculates torque that optimizes efficiency, from the efficiency variation expression; calculates within a range of the slip rate being 0 to 0.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: April 21, 2015
    Assignee: Pioneer Corporation
    Inventors: Masahiro Kato, Eiji Muramatsu, Chihiro Kawabata, Kazutoshi Kitano, Kazunobu Hashimoto, Yoshikazu Takeuchi
  • Patent number: 8935032
    Abstract: A torque distribution apparatus acquires an instructed torque input and a motor efficiency map for motors; detects vehicular speed and drive wheel rotational speed; calculates based on the detected speeds, a relational expression of drive wheel slip rate and a friction coefficient; creates based on the relational expression, a performance curve expression indicating relations between torque and the drive wheel rotational speed, superimposes the performance curve expression on the motor efficiency map, creates an efficiency variation expression indicating for each vehicular speed, the torque and efficiency values of the motor efficiency map, and calculates a torque that optimizes efficiency from the efficiency variation expression; calculates based on the instructed torque and the torque optimizing efficiency, a torque distribution value for each motor; and controls torque distribution to each motor, within a range of the slip rate being 0 to 0.2 and based on the torque distribution values.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: January 13, 2015
    Assignee: Pioneer Corporation
    Inventors: Masahiro Kato, Eiji Muramatsu, Chihiro Kawabata, Kazutoshi Kitano, Kazunobu Hashimoto, Yoshikazu Takeuchi