Patents by Inventor Kouji Fujita

Kouji Fujita 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: 20230366178
    Abstract: A work machine includes a second pilot line that introduces a hydraulic fluid from a pilot hydraulic fluid source to a pilot valve bypassing a first gate lock valve, a second gate lock valve that is disposed on the second pilot line and that is configured to be switched to an open position for allowing the supply of the hydraulic fluid to the pilot valve or a closed position for interrupting the supply of the hydraulic fluid, and a controller that controls the second gate lock valve on the basis of a second remote operation signal transmitted from a remote operation apparatus and that controls the pilot valve according to a first remote operation signal transmitted from the remote operation apparatus. In a state where the first gate lock valve is at a closed position, the second gate lock valve is allowed to be controlled by the controller when stairs are in a retracted state, and is kept at the closed position irrespective of the second remote operation signal when the stairs are in an extended state.
    Type: Application
    Filed: February 3, 2022
    Publication date: November 16, 2023
    Inventors: Teppei SAITOH, Kouji FUJITA, Hideaki ITOU, Hidefumi ISHIMOTO, Ryu NARIKAWA, Tadashi NISHIZAWA
  • Publication number: 20230358014
    Abstract: Provided is a work machine that allows assisting a loading work without giving uncomfortable feeling to an operator. The control device 40 of the work machine 1 includes an allowable range calculation section 46 that calculates an allowable range indicating a range in which the front work device 2 is movable in a height direction allowed in a swing operation; an operation determining section 45 that determines whether the work machine 1 is under a convey operation; and an operation control section 4 that controls a turn operation of a boom 8 such that the position of the front work device 2 in the height direction remains within the allowable range when the work machine 1 is determined to be under the convey operation.
    Type: Application
    Filed: March 1, 2022
    Publication date: November 9, 2023
    Inventors: Ryu NARIKAWA, Kouji FUJITA, Hideaki ITOU, Hidefumi ISHIMOTO, Teppei SAITOH, Tadashi NISHIZAWA
  • Publication number: 20230326267
    Abstract: A vehicle body management system for managing a vehicle body having a power train formed by a plurality of parts including a prime mover, the vehicle body management system including: a processing device that computes an efficiency value of a monitoring target, the monitoring target being the power train or a part or a subsystem of the power train, on the basis of information about the vehicle body, the information being sensed by a sensor provided to the vehicle body; and an output terminal that outputs the efficiency value of the monitoring target, the efficiency value being computed by the processing device, the processing device computing a load parameter of the power train, determining whether the load parameter is larger than a load determination value set in advance, computing the efficiency value of the monitoring target on the basis of input energy and output energy of the monitoring target on condition that the load parameter be larger than the load determination value, and recording the computed ef
    Type: Application
    Filed: May 24, 2021
    Publication date: October 12, 2023
    Inventors: Yoichi IIHOSHI, Satoshi INOSE, Kouji FUJITA, Koichiro EJIRI, Kenji MIZUTANI, Kenichi AJIMA
  • Publication number: 20230316711
    Abstract: An action recognition system includes a controller that computes, in a time division manner, a plurality of feature vectors using as feature quantities information of a machine with respect to running that varies in a time sequence, generates a classification model by classifying the feature vectors into a plurality of clusters and allocating identification IDs to the clusters, generates an ID pattern model by allocating the identification IDs to the feature vectors computed in the time division manner on the basis of the classification model and associating a pattern of the identification IDs that vary in a time sequence according to a predetermined action of the machine with identification information of the predetermined action, generates output information for recognizing the predetermined action on the basis of changes in the identification IDs in the time sequence and the ID pattern model, and controls the display device to output the output information.
    Type: Application
    Filed: November 11, 2021
    Publication date: October 5, 2023
    Inventors: Munetoshi UNUMA, Lu HAN, Hiroshi TSUKUI, Kouji FUJITA, Kenichi AJIMA, Masutaka KUMASAKA, Kouichirou EJIRI
  • Publication number: 20230241647
    Abstract: An article sorting facility includes: a first floor including a plurality of first travel paths; a second floor installed at a different height from the first floor in a vertical direction, and including a plurality of second travel paths; a plurality of first elevation mechanisms connecting terminating ends of the first travel paths to starting ends of the second travel paths; a plurality of second elevation mechanisms connecting terminating ends of the second travel paths to starting ends of the first travel paths; a plurality of receiving sections configured to receive articles from the transport vehicles; and at least one supply section configured to supply the articles to the transport vehicles. The plurality of second travel paths overlap corresponding first travel paths or corresponding receiving sections as viewed in the vertical direction, at least in a partial segment.
    Type: Application
    Filed: January 30, 2023
    Publication date: August 3, 2023
    Inventors: Yasuhisa Mishina, Tadasuke Ogawa, Kouji Fujita, Kenichi Ukisu, Nobuhiko Sato, Masaya Miyamoto
  • Patent number: 10650251
    Abstract: In an industrial machine, the work safety is further improved by eliminating blind spots from an image displayed on a monitor. A hydraulic excavator 1 which is the industrial machine is equipped with monitoring cameras 15F, 15B, 15L, 15R mounted in the respective places of a revolving upperstructure 3 in order to capture images for monitoring. A monitor 20 displays camera images 21F, 21B, 21L, 21R obtained by the cameras as well as an icon image 21C of an image illustration of the hydraulic excavator 1. The cameras 15F, 15L, 15R are mounted at the distal ends of support arms 40F, 40L, 40R to be located in positions jutting from a revolving upperstructure main unit 3a of the revolving upperstructure 3, so that a hidden area under the underside of a catwalk 14 provided on the revolving upperstructure 3 falls within the field of view.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: May 12, 2020
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Yoichi Kowatari, Hidefumi Ishimoto, Moritaka Oota, Yoshihiro Inanobe, Hiroyoshi Tanaka, Kouji Fujita, Takashi Kusama
  • Patent number: 10413187
    Abstract: An object of the invention is to provide a technology for further improving scanning performance. Provided is an optical scanning device including: a scanning unit including an optical waveguide configured to guide incident light and emit the light from an emission end, and a vibration unit configured to generate a vibration and vibrate the emission end; and a signal transmission unit configured to transmit a signal to the scanning unit and cause the scanning unit to scan an object, characterized in that the scanning unit includes a first bonding and vibration attenuating unit configured to bond, with an elastic member, an end surface of the vibration unit closer to the emission end and the optical waveguide.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: September 17, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Toshiteru Nakamura, Satoshi Ouchi, Yoshiho Seo, Kouji Fujita, Shinsuke Onoe, Kenichiro Yamada, Tomoto Kawamura
  • Patent number: 10270548
    Abstract: A permissible range of a mobile terminal that operates in cooperation with a target operation device in accordance with a user's whereabouts in a house is dynamically switched. An intercom has a function permission number control unit that generates calling information to require a cooperated operation to be carried out with the mobile terminal. The mobile terminal includes a function permission number storing unit and a CPU. The function permission number storing unit stores function permission numbers respectively set to mobile terminals. When a function permission number transmitted from the intercom is received, the CPU determines whether the function permission number coincides with a function permission number of a function permission information storing unit or not, and sets an application for carrying out the cooperated operation with the intercom to active in a case where they coincide with each other.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: April 23, 2019
    Assignee: Maxell, Ltd.
    Inventor: Kouji Fujita
  • Publication number: 20190042858
    Abstract: In an industrial machine, the work safety is further improved by eliminating blind spots from an image displayed on a monitor. A hydraulic excavator 1 which is the industrial machine is equipped with monitoring cameras 15F, 15B, 15L, 15R mounted in the respective places of a revolving upperstructure 3 in order to capture images for monitoring. A monitor 20 displays camera images 21F, 21B, 21L, 21R obtained by the cameras as well as an icon image 21C of an image illustration of the hydraulic excavator 1. The cameras 15F, 15L, 15R are mounted at the distal ends of support arms 40F, 40L, 40R to be located in positions jutting from a revolving upperstructure main unit 3a of the revolving upperstructure 3, so that a hidden area under the underside of a catwalk 14 provided on the revolving upperstructure 3 falls within the field of view.
    Type: Application
    Filed: October 12, 2018
    Publication date: February 7, 2019
    Inventors: Yoichi KOWATARI, Hidefumi ISHIMOTO, Moritaka OOTA, Yoshihiro INANOBE, Hiroyoshi TANAKA, Kouji FUJITA, Takashi KUSAMA
  • Publication number: 20190007149
    Abstract: A permissible range of a mobile terminal that operates in cooperation with a target operation device in accordance with a user's whereabouts in a house is dynamically switched. An intercom has a function permission number control unit that generates calling information to require a cooperated operation to be carried out with the mobile terminal. The mobile terminal includes a function permission number storing unit and a CPU. The function permission number storing unit stores function permission numbers respectively set to mobile terminals. When a function permission number transmitted from the intercom is received, the CPU determines whether the function permission number coincides with a function permission number of a function permission information storing unit or not, and sets an application for carrying out the cooperated operation with the intercom to active in a case where they coincide with each other.
    Type: Application
    Filed: December 10, 2015
    Publication date: January 3, 2019
    Inventor: Kouji FUJITA
  • Patent number: 10145087
    Abstract: To recognize an obstacle such as a working face which may be touched by a revolving upperstructure including a height position thereof at the time of a swing control. A plurality of first cameras 13 for forming bird's eye views which photograph obliquely lower parts of directions different from each other are arranged in a revolving upperstructure 3, a composite bird's eye view 20 is displayed on a display 15, second cameras 16R, 16L for photographing through images including corner parts from a rear end of the revolving upperstructure 3 to side parts within a visual field range are arranged in lower part positions of a swing frame 3a of the revolving upperstructure 3 so as to rotate following swing of the revolving upperstructure 3, and corner part through images 30R, 30L are displayed on the display 15 so as to be superimposed on the composite bird's eye view 20.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: December 4, 2018
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Yoichi Kowatari, Kouji Fujita, Yoshihiro Inanobe, Hiroyoshi Tanaka, Takashi Kusama, Moritaka Oota, Hidefumi Ishimoto
  • Publication number: 20180296094
    Abstract: An object of the invention is to provide a technology for further improving scanning performance. Provided is an optical scanning device including: a scanning unit including an optical waveguide configured to guide incident light and emit the light from an emission end, and a vibration unit configured to generate a vibration and vibrate the emission end; and a signal transmission unit configured to transmit a signal to the scanning unit and cause the scanning unit to scan an object, characterized in that the scanning unit includes a first bonding and vibration attenuating unit configured to bond, with an elastic member, an end surface of the vibration unit closer to the emission end and the optical waveguide.
    Type: Application
    Filed: March 24, 2016
    Publication date: October 18, 2018
    Inventors: Toshiteru NAKAMURA, Satoshi OUCHI, Yoshiho SEO, Kouji FUJITA, Shinsuke ONOE, Kenichiro YAMADA, Tomoto KAWAMURA
  • Publication number: 20180081368
    Abstract: A vehicle that enables information on climb-over/touch on an obstacle to be utilized in lengthening the lives of tires and a vehicle body and maintenance such as replacement/repair is provided. The vehicle includes: a vehicle body 1a running on tires; an environmental recognition device 2 detecting any obstacle ahead of the vehicle body 1a; a touch determination section 4 determining touch on a tire; and a storage section 4a recording information on an obstacle touched/climbed over. The storage section 4a records information on an obstacle determined to have been touched by the touch determination section 4.
    Type: Application
    Filed: March 4, 2016
    Publication date: March 22, 2018
    Inventors: Atsushi WATANABE, Shinichi UOTSU, Kouji FUJITA, Takuya NAKA
  • Publication number: 20170016210
    Abstract: To recognize an obstacle such as a working face which may be touched by a revolving upperstructure including a height position thereof at the time of a swing control. A plurality of first cameras 13 for forming bird's eye views which photograph obliquely lower parts of directions different from each other are arranged in a revolving upperstructure 3, a composite bird's eye view 20 is displayed on a display 15, second cameras 16R, 16L for photographing through images including corner parts from a rear end of the revolving upperstructure 3 to side parts within a visual field range are arranged in lower part positions of a swing frame 3a of the revolving upperstructure 3 so as to rotate following swing of the revolving upperstructure 3, and corner part through images 30R, 30L are displayed on the display 15 so as to be superimposed on the composite bird's eye view 20.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 19, 2017
    Inventors: Yoichi KOWATARI, Kouji FUJITA, Yoshihiro INANOBE, Hiroyoshi TANAKA, Takashi KUSAMA, Moritaka OOTA, Hidefumi ISHIMOTO
  • Publication number: 20160217331
    Abstract: In an industrial machine, the work safety is further improved by eliminating blind spots from an image displayed on a monitor. A hydraulic excavator 1 which is the industrial machine is equipped with monitoring cameras 15F, 15B, 15L, 15R mounted in the respective places of a revolving upperstructure 3 in order to capture images for monitoring. A monitor 20 displays camera images 21F, 21B, 21L, 21R obtained by the cameras as well as an icon image 21C of an image illustration of the hydraulic excavator 1. The cameras 15F, 15L, 15R are mounted at the distal ends of support arms 40F, 40L, 40R to be located in positions jutting from a revolving upperstructure main unit 3a of the revolving upperstructure 3, so that a hidden area under the underside of a catwalk 14 provided on the revolving upperstructure 3 falls within the field of view.
    Type: Application
    Filed: January 20, 2015
    Publication date: July 28, 2016
    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Yoichi KOWATARI, Hidefumi ISHIMOTO, Moritaka OOTA, Yoshihiro INANOBE, Hiroyoshi TANAKA, Kouji FUJITA, Takashi KUSAMA
  • Publication number: 20160078893
    Abstract: An optical information recording and reproducing device performs high-speed reproduction without having to sequentially change the wavelength of a reproduction light source. The device includes: a laser light source which generates a signal light and a reference light; a temperature measurement unit which measures temperature at least at two or more positions; a wavelength adjustment unit which adjusts a wavelength of the laser light source according to a result of measurement by the temperature measurement unit; a temperature distribution calculation unit which calculates a temperature distribution on the basis of the result of measurement by the temperature measurement unit; and a control unit which controls a recording operation and a reproducing operation. The control unit controls permission and prohibition of the recording operation or the reproducing operation according to the temperature distribution calculated by the temperature distribution calculation unit.
    Type: Application
    Filed: August 11, 2015
    Publication date: March 17, 2016
    Inventor: Kouji FUJITA
  • Publication number: 20160049170
    Abstract: During reconstruction, the hologram cannot be reconstructed at high speed. In the present invention, the distance between the optical system base point, which is associated with a recording medium address during recording, and the recording medium is measured, and said distance is recorded in a memory. During reconstruction, distance information, which is the distance of the recording medium from the memory that is associated with a recording medium reconstruction address, is read, and the position of an aperture filter is adjusted at high speed in the optical axis direction on the basis of the read distance information and a distance measurement result for the optical system base point during reconstruction and the recording medium. Thus, the relative positions of the hologram within the recorded medium associated with the optical system during reconstruction and during recording can be matched.
    Type: Application
    Filed: April 10, 2013
    Publication date: February 18, 2016
    Inventor: Kouji FUJITA
  • Patent number: 9190097
    Abstract: In an optical information recording/reproducing device that radiates signal light and reference light to a recording medium, forms a hologram, and records information and emits the reference light to the hologram of the recording medium and reproduces information, a laser light source that generates the signal light and the reference light; a light angle control unit that controls an angle of the reference light incident on the recording medium; a light detecting unit that detects diffracted light when the reference light is radiated; a positioning unit that allocates an address to the recording medium and performs positioning of the recording medium for the address; a tilt measuring unit that measures a tilt of the recording medium; and a control unit that controls the incidence angle of the reference light, on the basis of a tilt measurement result in a recording mode, in a reproduction mode, are included.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: November 17, 2015
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventor: Kouji Fujita
  • Publication number: 20150146511
    Abstract: In an optical information recording/reproducing device that radiates signal light and reference light to a recording medium, forms a hologram, and records information and emits the reference light to the hologram of the recording medium and reproduces information, a laser light source that generates the signal light and the reference light; a light angle control unit that controls an angle of the reference light incident on the recording medium; a light detecting unit that detects diffracted light when the reference light is radiated; a positioning unit that allocates an address to the recording medium and performs positioning of the recording medium for the address; a tilt measuring unit that measures a tilt of the recording medium; and a control unit that controls the incidence angle of the reference light, on the basis of a tilt measurement result in a recording mode, in a reproduction mode, are included.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 28, 2015
    Inventor: Kouji FUJITA
  • Patent number: 8913474
    Abstract: An optical information recording/reproducing apparatus for recording information on a recording medium and/or reproducing information from the recording medium, includes: a laser light source for performing recording and/or reproducing information; a shielding part, using a liquid crystal, that can switch between transmission and interception of laser light emitted from the laser light source; a driving circuit for driving the switching between transmission and interception of the shielding part; a moving part for relatively moving the shielding part and the laser light; and a controlling circuit for controlling the moving part. The moving part relatively moves the shielding part and the laser light so as to switch a region to which the laser light is applied from a first region of the shielding part to a second region thereof different from the first region, in order to prevent the liquid crystal from deteriorating.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: December 16, 2014
    Assignees: Hitachi Consumer Electronics Co., Ltd., Hitachi-LG Data Storage, Inc.
    Inventors: Hirofumi Taguchi, Kouji Fujita, Taku Hoshizawa, Ukyo Ikeda