Patents by Inventor Masayoshi Takahashi

Masayoshi Takahashi 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: 20220158461
    Abstract: The present invention provides a high reliability secondary cell system in which a power supply is multiplexed without using a lead storage battery. This secondary cell system 10 has two or more battery groups comprising a plurality of cells 21 connected in series, each of the battery groups 11, 12, 13 is connected in parallel. Disposed in each battery group 11, 12, 13 are open/close switches 31a, 31b, 32a, 32b, 33a, 33b that disconnect the battery group from a circuit of the secondary cell system 10. This secondary cell system 10 can comprise an active balancer 14 connected in parallel with the battery groups 11, 12, 13.
    Type: Application
    Filed: February 12, 2020
    Publication date: May 19, 2022
    Inventors: Koichi Yamanoue, Masayoshi Takahashi, Daisuke Makio
  • Patent number: 11283952
    Abstract: An image reading apparatus according to the present disclosure includes: a platen glass on which a document is placed; a light source, an image sensor; an image reading unit for optically reading an image of a reading area of the image sensor; a rotatable document cover for covering the platen glass; a cover state detection unit for the document cover; a control unit to detect a sensor output level of the image sensor; and a document size specification unit for the document. The control unit causes the image reading unit to perform a reading operation for specifying the size of the document in the main scanning direction in a state in which the document cover is open, and causes the light source to emit a predetermined light amount in the reading operation, which is larger than the light amount when the document image is read from the document.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: March 22, 2022
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Masayoshi Takahashi
  • Patent number: 11277534
    Abstract: An image reading apparatus includes a reading controller, a data generating circuit unit, a document holder, an opening/closing sensor which provides an output of a first level when the document holder is open by an angle equal to or more than a predetermined angle, and a storage unit which stores an adjustment value. Where a return is made from a power saving mode to an active mode, when an output level of the opening/closing sensor is the first level, the reading controller makes a setting for an operation of the data generating circuit unit based on the adjustment value stored in the storage unit, and then makes the reading unit perform reading for document size detection.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: March 15, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Masayoshi Takahashi
  • Publication number: 20210385345
    Abstract: An image reading apparatus includes a reading controller, a data generating circuit unit, a document holder, an opening/closing sensor which provides an output of a first level when the document holder is open by an angle equal to or more than a predetermined angle, and a storage unit which stores an adjustment value. Where a return is made from a power saving mode to an active mode, when an output level of the opening/closing sensor is the first level, the reading controller makes a setting for an operation of the data generating circuit unit based on the adjustment value stored in the storage unit, and then makes the reading unit perform reading for document size detection.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 9, 2021
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Masayoshi TAKAHASHI
  • Publication number: 20210274058
    Abstract: An image reading apparatus according to the present disclosure includes: a platen glass on which a document is placed; a light source, an image sensor; an image reading unit for optically reading an image of a reading area of the image sensor; a rotatable document cover for covering the platen glass; a cover state detection unit for the document cover; a control unit to detect a sensor output level of the image sensor; and a document size specification unit for the document. The control unit causes the image reading unit to perform a reading operation for specifying the size of the document in the main scanning direction in a state in which the document cover is open, and causes the light source to emit a predetermined light amount in the reading operation, which is larger than the light amount when the document image is read from the document.
    Type: Application
    Filed: February 25, 2021
    Publication date: September 2, 2021
    Inventor: Masayoshi TAKAHASHI
  • Patent number: 10908595
    Abstract: A device includes a catalog storage unit that stores a catalog having versatility; a catalog control unit that specifies the catalog corresponding to a target machine tool to be subjected to state determination based on machine tool information including an item of facility type and acquires the catalog from the catalog storage unit; a feature quantity extraction unit that extracts a feature quantity from sensor data detected from the target machine tool; a sensor data processing unit that performs state determination of the target machine tool based on the feature quantity distribution included in the acquired catalog and the feature quantity extracted from the sensor data; a feature quantity tuning unit that performs tuning of the feature quantity distribution by mapping the extracted feature quantity to the feature quantity distribution; and a catalog updating unit that updates the catalog based on the feature quantity distribution after tuning.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: February 2, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Yuichi Sakurai, Masaaki Maeda, Masayoshi Takahashi, Hideo Sakai
  • Patent number: 10845794
    Abstract: A state identification device includes: a feature amount extraction unit that extracts a feature amount from physical data of a machine tool unit which shifts to a plurality of operation states; a feature amount storage unit in which a region is provided as a storage destination of the extracted feature amount for each of the plurality of operation states to which the machine tool unit shifts; a similarity calculation unit that calculates a similarity between the extracted feature amount and a feature amount stored in the feature amount storage unit; a state determination unit that determines an operation state of the machine tool unit based on the calculated similarity; and a storage destination determination unit that determines the region serving as the storage destination of the extracted feature amount based on a determination result of the state determination unit.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: November 24, 2020
    Assignee: HITACHI, LTD.
    Inventors: Hideo Sakai, Masaaki Maeda, Yuichi Sakurai, Masayoshi Takahashi
  • Publication number: 20200076959
    Abstract: An image reading device includes a light source, a reading portion including an image sensor, an optical member, and a control portion. The image sensor is divided into a first region in which light of the light source is directly received without passing through the optical member and a second region in which light of the light source is received via the optical member. Based on whether a first output value corresponding to an amount of light received in the first region and a second output value corresponding to an amount of light received in the second region are each at a normal level or an abnormal level, the control portion identifies an abnormality.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 5, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Masayoshi TAKAHASHI
  • Publication number: 20190384268
    Abstract: A device includes a catalog storage unit that stores a catalog having versatility; a catalog control unit that specifies the catalog corresponding to a target machine tool to be subjected to state determination based on machine tool information including an item of facility type and acquires the catalog from the catalog storage unit; a feature quantity extraction unit that extracts a feature quantity from sensor data detected from the target machine tool; a sensor data processing unit that performs state determination of the target machine tool based on the feature quantity distribution included in the acquired catalog and the feature quantity extracted from the sensor data; a feature quantity tuning unit that performs tuning of the feature quantity distribution by mapping the extracted feature quantity to the feature quantity distribution; and a catalog updating unit that updates the catalog based on the feature quantity distribution after tuning.
    Type: Application
    Filed: April 26, 2019
    Publication date: December 19, 2019
    Inventors: Yuichi SAKURAI, Masaaki Maeda, Masayoshi Takahashi, Hideo Sakai
  • Publication number: 20190324428
    Abstract: A state identification device includes: a feature amount extraction unit that extracts a feature amount from physical data of a machine tool unit which shifts to a plurality of operation states; a feature amount storage unit in which a region is provided as a storage destination of the extracted feature amount for each of the plurality of operation states to which the machine tool unit shifts; a similarity calculation unit that calculates a similarity between the extracted feature amount and a feature amount stored in the feature amount storage unit; a state determination unit that determines an operation state of the machine tool unit based on the calculated similarity; and a storage destination determination unit that determines the region serving as the storage destination of the extracted feature amount based on a determination result of the state determination unit.
    Type: Application
    Filed: April 12, 2019
    Publication date: October 24, 2019
    Applicant: HITACHI, LTD.
    Inventors: Hideo SAKAI, Masaaki MAEDA, Yuichi SAKURAI, Masayoshi TAKAHASHI
  • Patent number: 10402130
    Abstract: A printing system includes an image forming apparatus that accepts a printing instruction from a mobile terminal, sends an inquiry to a server as to whether a printing reservation corresponding to the accepted printing instruction is managed by the server, and transmits connection information to the mobile terminal if the printing reservation is managed by the server. The image forming apparatus obtains printing data corresponding to the printing instruction from the mobile terminal set in the connected state, executes printing processing using the obtained printing data, and sets communication with the mobile terminal to an unconnected state after execution of the printing processing is complete. If the printing reservation corresponding to the accepted printing instruction is not managed by the server, the printing instruction accepted from the mobile terminal is rejected and the connection information is not transmitted to the mobile terminal.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: September 3, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayoshi Takahashi, Kazuhiko Okazawa, Shigeru Kameyama, Hisashi Enomoto, Tadashi Fukumuro, Yukio Numakami, Ryosuke Sato
  • Patent number: 10389918
    Abstract: A document reading unit includes an R light source, a G light source, a B light source, a UV light source, a lighting control unit, a first photoelectric conversion element, a second photoelectric conversion element, a lens, and an output unit. The first photoelectric conversion element includes an M filter. The second photoelectric conversion element includes a G filter. The output unit outputs outputs of the first photoelectric conversion element and the second photoelectric conversion element at the time of simultaneous lighting of the R and G light sources and an output of the first photoelectric conversion element at the time of simultaneous lighting of the B and UV light sources as the image data, and outputs an output of the second photoelectric conversion element at the time of simultaneous lighting of the B and UV light source as fluorescent color data indicating a fluorescent color region.
    Type: Grant
    Filed: February 3, 2018
    Date of Patent: August 20, 2019
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Masayoshi Takahashi
  • Patent number: 10351451
    Abstract: An object of the present invention is to provide an ozone water having enhanced storage stability and a method for producing the ozone water. An ozone water of the present invention as a means for resolution is produced by dissolving 0.1 ?M to 1 mM of an organic iron compound and 1 to 300 mM of an inorganic salt in a water with ozone-microbubbles generated using an ozone gas at a concentration of 1 to 300 g/Nm3. The half-life of ozone of the ozone water of the present invention is 3 days or longer, for example, when the water filled in an airtight container under atmospheric pressure is stored under a temperature condition of 40° C.
    Type: Grant
    Filed: August 1, 2015
    Date of Patent: July 16, 2019
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventor: Masayoshi Takahashi
  • Patent number: 10250770
    Abstract: An image reading device includes a contact glass, a first lamp, an image sensor, a first lamp, a light absorbing member, and a second lamp. When reading a document, in a first period, the first lamp is turned on while the second lamp is turned off. In a second period, the second lamp is turned on while the first lamp is turned off. On the basis of first image data obtained by reading in the first period and second image data obtained by reading in the second period, the control unit determines whether each pixel in the first image data is a pixel having read document data or not.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: April 2, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Masayoshi Takahashi
  • Publication number: 20190012123
    Abstract: In the image forming apparatus, accepting a printing instruction from the mobile terminal, inquiring whether the management server manages a printing reservation corresponding to a printing instruction when the printing instruction is accepted, transmitting connection information to the mobile terminal when the printing reservation corresponding to the printing instruction is managed as a result of an inquiry, setting communication with the mobile terminal as a connected state when a connection request from the mobile terminal using the connection information, obtaining printing data corresponding to the printing instruction from the mobile terminal set in the connected state, and executing printing processing using the printing data. Communication with the mobile terminal is set to an unconnected state after execution of the printing processing is complete.
    Type: Application
    Filed: August 30, 2018
    Publication date: January 10, 2019
    Inventors: Masayoshi Takahashi, Kazuhiko Okazawa, Shigeru Kameyama, Hisashi Enomoto, Tadashi Fukumuro, Yukio Numakami, Ryosuke Sato
  • Patent number: 10160334
    Abstract: Provided is a power conversion device capable of selectively suppressing harmonic noise in a frequency band and a machine equipped with the power conversion device. The power conversion device includes a switching element (13), a switching signal generation unit (23, 24) for generating a switching control signal for controlling the turning on/off of the switching element (13), and a control unit (18), and is characterized in that the switching control signal generation unit (23, 24) generates the switching control signal including a combination of a pair of symmetrical pulse waveforms having on and off periods that are interchanged with respect to a repeated cycle.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: December 25, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Isao Houda, Masayoshi Takahashi, Hiroki Funato, Hitoshi Akiyama
  • Publication number: 20180227462
    Abstract: A document reading unit includes an R light source, a G light source, a B light source, a UV light source, a lighting control unit, a first photoelectric conversion element, a second photoelectric conversion element, a lens, and an output unit. The first photoelectric conversion element includes an M filter. The second photoelectric conversion element includes a G filter. The output unit outputs outputs of the first photoelectric conversion element and the second photoelectric conversion element at the time of simultaneous lighting of the R and G light sources and an output of the first photoelectric conversion element at the time of simultaneous lighting of the B and UV light sources as the image data, and outputs an output of the second photoelectric conversion element at the time of simultaneous lighting of the B and UV light source as fluorescent color data indicating a fluorescent color region.
    Type: Application
    Filed: February 3, 2018
    Publication date: August 9, 2018
    Inventor: Masayoshi Takahashi
  • Patent number: 10003274
    Abstract: A power conversion device includes: a metal housing; a power semiconductor module that is contained in the metal housing and converts direct electric current to alternating electric current; a capacitor module that is contained in the metal housing and arranged side by side with the power semiconductor module, wherein the capacitor module smoothes the direct electric current supplied to the power semiconductor module; a substrate that has a drive circuit part mounted in a first region, the drive circuit part driving the power semiconductor module, and a control circuit part mounted in a second region, the control circuit part controlling the drive circuit part, wherein the substrate is disposed so as to cover over the metal housing; a base plate that extends in a space in which the second region of the substrate and the capacitor module oppose to each other, and that is electrically connected to the metal housing; and a first noise shielding member that extends in a direction along a boundary between the firs
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: June 19, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Masayoshi Takahashi, Keisuke Fukumasu, Yuki Fujita, Takeshi Kato, Hiroki Funato
  • Patent number: 9991815
    Abstract: A power conversion apparatus is provided with a bus bar connecting a cable connected to an external power supply or load and an internal circuit. To provide this power conversion apparatus with a wiring structure for noise propagation suppression without use of a filter circuit element that causes increase in the volume of the apparatus, the bus bar is provided with an electromagnetic band gap structure. Electromagnetic noise is thereby suppressed from propagating from the power conversion apparatus to the power supply or the load via the cable.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: June 5, 2018
    Assignee: HITACHI, LTD.
    Inventors: Hiroki Funato, Masayoshi Takahashi
  • Publication number: 20180152578
    Abstract: An image reading device includes a contact glass, a first lamp, an image sensor, a first lamp, a light absorbing member, and a second lamp. When reading a document, in a first period, the first lamp is turned on while the second lamp is turned off. In a second period, the second lamp is turned on while the first lamp is turned off. On the basis of first image data obtained by reading in the first period and second image data obtained by reading in the second period, the control unit determines whether each pixel in the first image data is a pixel having read document data or not.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 31, 2018
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Masayoshi Takahashi