Patents Assigned to Citizen Watch Co., Ltd.
  • Patent number: 9991068
    Abstract: A side-push push-button switch is provided in which the strength of a rear surface side of a housing to which a load is particularly applied by outside force caused by the switching operation of a push-button member is increased to stably mount the housing on a circuit board and ensure reliable and secure switching operation. The push-button switch includes a housing, a push-button member, and a holding frame. The housing accommodates a switch contact. The push-button member is disposed on a front-surface center portion of the housing and configured to press the switch contact. The holding frame of a channel shape covers outer surfaces of the housing. Both ends of the holding frame are secured to front-surface side portions of the housing on both sides of the push-button member.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: June 5, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Toyohiko Amano, Mitsunori Miura
  • Patent number: 9981481
    Abstract: Irregularities in the density that can occur in printed images of a thermal transfer printer due to mechanical variations or variations in thermal characteristics in the thermal head are more easily and accurately corrected as compared to cases not having the features of the disclosed invention.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: May 29, 2018
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN SYSTEMS JAPAN CO., LTD.
    Inventors: Yutaka Inokuchi, Takeshi Yamazaki
  • Patent number: 9985182
    Abstract: Provided is a light-emitting apparatus including a board, a resin frame fixed on the board, sets of light-emitting elements mounted in a region on the board surrounded by the resin frame, wherein the light-emitting elements configuring each set are connected in series to each other. The light-emitting apparatus further includes connection electrodes provided on the board and electrically connected to the light-emitting elements and capable of supplying a drive current selectively to the sets of light-emitting elements, and a sealing resin which includes a phosphor mixed therein and excited by light from the light-emitting elements, and is filled so as to bury the region on the board, to seal integrally the light-emitting elements. The thickness of the sealing resin immediately above the light-emitting elements differs for the respective sets, and thereby, a chromaticity of light emitted from the sealing resin differs when each set of light-emitting elements emits the light singly.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: May 29, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Yuka Watanabe, Takakazu Yano
  • Patent number: 9977293
    Abstract: An object of the present invention is to provide electronic eyeglass and liquid crystal lens production methods that eliminate the need for forming a liquid crystal injection path in the liquid crystal lens, while making provisions so as to be able to sufficiently maintain a prescribed gap between substrates. The electronic eyeglass and liquid crystal lens production methods includes the steps of placing a sealing agent so as to form a closed planar region on at least one of first and second transparent substrates, dropping a liquid crystal material into an inside space enclosed by the sealing agent, bonding the other of the transparent substrates onto the one transparent substrate on which the liquid crystal material has been dripped, and filling a resin into a space created outside the sealing agent.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: May 22, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventors: Tomohiro Ando, Kenji Matsumoto, Ayano Tanabe
  • Patent number: 9979586
    Abstract: The phase modulation device (3) includes a first phase modulation element (11) which modulates a phase of a light flux in accordance with a voltage applied to each of a plurality of first electrodes in accordance with a first ratio of a second aberration component to a first aberration component of a wave front aberration generated by an optical system including an objective lens (4); a second phase modulation element (12) which modulates a phase of a light flux in accordance with a voltage applied to each of a plurality of second electrodes in accordance with a second ratio of the second aberration component to the first aberration component; and a control circuit (3) which controls voltages applied to each of first electrodes and each of second electrodes in accordance with a distance from the objective lens to a light focusing position of the light flux.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: May 22, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventor: Ayano Tanabe
  • Publication number: 20180138160
    Abstract: A light-emitting device and a manufacturing method thereof are provided, which device yields light exhibiting an actual hue with a deviation reduced as much as possible from a designed hue value, the light being a mixture of light emitted from a plurality of light-emitting elements mounted densely and excited light from a phosphor contained in a resin sealing the light-emitting elements. The light-emitting device includes a board, a plurality of light-emitting elements mounted densely on the board, a first resin free from any phosphor, placed among the plurality of light-emitting elements, and a second resin containing a phosphor and covering an exposed part of the plurality of light-emitting elements.
    Type: Application
    Filed: February 9, 2016
    Publication date: May 17, 2018
    Applicants: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Sadato Imai, Masahide Watanabe, Hirohiko Ishii, Koki Hirasawa
  • Publication number: 20180128458
    Abstract: Provided is a light-emitting apparatus including a substrate, a plurality of light-emitting units each having a plurality of LED elements mounted on the substrate in a rectangular lattice pattern, wherein each of the light-emitting units has a rectangular light-emitting region, and a lens array including a plurality of lenses provided corresponding to the light-emitting units, respectively, the lens array being arranged on the plurality of light-emitting units, wherein the plurality of lenses is designed such that beams of emission light from the plurality of light-emitting units are collected and radiated so as to overlap with one another at a position distant from the substrate, and a part of the plurality of light-emitting units is arranged to be inclined with respect to a reference direction in a plane of the substrate by an angle different from that of other light-emitting units.
    Type: Application
    Filed: July 20, 2017
    Publication date: May 10, 2018
    Applicants: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: KOICHI FUKASAWA
  • Publication number: 20180123008
    Abstract: An LED package used in a light-emitting device is provided with a function of position correction in mounting by self-alignment, and mounting density of such LED packages is increased. The LED package includes an LED element including an element electrode on a bottom surface, a phosphor layer containing a phosphor and covering a top surface and a side surface of the LED element, and an auxiliary electrode having an upper face bonded to a lower face of the element electrode, wherein the auxiliary electrode is larger than the element electrode, the auxiliary electrode includes a step that makes a lower face smaller than the upper face, and an end portion of the auxiliary electrode on a side where the step is formed is located inside an outer peripheral side of the phosphor layer.
    Type: Application
    Filed: February 9, 2016
    Publication date: May 3, 2018
    Applicants: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Sadato Imai, Masahide Watanabe, Hirohiko Ishii, Koki Hirasawa, Yuji Omori
  • Patent number: 9956624
    Abstract: A beveling method for beveling the edge of the opening of a cross hole (2-1) formed in a workpiece (W) while rotating a conical tool (1), which has conical cutting blade sections (11-1, 11-2), wherein beveling is carried out so that a surface of the same width is formed on the edge of the opening of the cross hole (2-1) by controlling the height of the conical tool (1) and/or the position of the rotation shaft of the conical tool (1) on the basis of a conic section, which is generated when a cutting blade section (11-1, 11-2) is cut with an imaginary plane (V) that contacts the processing point (P) of the conical tool (1) on the cross hole (2-1), and the shape of the edge of the cross hole (2-1) opening.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: May 1, 2018
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.
    Inventor: Hikaru Takahashi
  • Patent number: 9954148
    Abstract: A light-emitting apparatus that improves the use efficiency of emission light from light-emitting elements by an optical element for light collection and improves the light-emitting intensity in front of the apparatus without increasing the size of the apparatus, and its manufacturing method are provided. The light-emitting apparatus includes light-emitting elements, a substrate on which the light-emitting elements are mounted in a mounted region and a pair of electrodes for supplying power to the light-emitting elements is arranged around the mounted region, a sealing resin that contains a phosphor excited by emission light from the light-emitting elements and seals the light-emitting elements on the mounted region, and an optical element that is placed to cover the sealing resin with a lower end in contact with a flat region between the pair of electrodes and the sealing resin on the substrate and collects light emitted from the light-emitting elements through the sealing resin.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: April 24, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Hiroaki Eguchi, Sadato Imai
  • Publication number: 20180087993
    Abstract: A pressure detection device includes: a cylindrical body made of a conductor; a pressure receiver made of a conductor, the pressure receiver being mounted to one end side of the body and receiving pressure from the outside; a signal generator arranged inside the body, the signal generator being electrically connected to the pressure receiver and generating a signal corresponding to the pressure received by the pressure receiver; and a cover made of an insulator with a lower thermal conductivity than thermal conductivities of the body and the pressure receiver, the cover continuously covering an outer surface of the pressure receiver and a portion of an outer surface of the body, the portion being located at a side closer to the pressure receiver.
    Type: Application
    Filed: September 21, 2017
    Publication date: March 29, 2018
    Applicants: CITIZEN FINEDEVICE CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, CITIZEN WATCH CO., LTD.
    Inventors: Yusuke SATOH, Kazuo TAKAHASHI, Aki SUDO, Keisuke SASAKI, Masakatsu NAGAI
  • Patent number: 9920889
    Abstract: In a first aspect of the present inventive subject matter, a lighting device includes a light source including a light-emitting surface, and a phosphor cover including a spiral surface that covers the light-emitting surface of the light source. In a second aspect of the present inventive subject matter, a phosphor cover including a spiral surface may include one or more layers. In a third aspect of the present inventive subject matter, a method manufacturing a lighting device includes: rolling up a phosphor film from one end to another end to form a roll with spiral surfaces both ends of the roll of the phosphor film.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: March 20, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: Junji Miyashita
  • Patent number: 9920910
    Abstract: In a first aspect of the present invention, it is suggested that a mounting method for mounting light-emitting elements as evenly as possible in a mounting area of a lighting device may permit increased number of light-emitting elements. In a second aspect of the present invention, a lighting device including a substrate with a circular mounting area, a plurality of light-emitting elements configured to be positioned at centers of equal smaller circular areas that are calculated to be equal in size in the circular mounting area, the equal smaller circular areas being equal in size to each other and set as large as possible without an overlapping portion in the circular mounting area, a total area of the equal smaller circular areas being smaller than the circular mounting area, and the light-emitting elements and the equal smaller circular areas being the same in number is suggested.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: March 20, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: Takuya Funakubo
  • Patent number: 9922609
    Abstract: A drive circuit has a ferroelectric liquid crystal panel that operates at a given switching angle and response speed, a sensor that measures temperature, a drive circuit that supplies driving voltage to the ferroelectric liquid crystal panel, a waveform generation circuit that supplies a waveform signal to the drive circuit, and a control circuit that controls the waveform generation circuit; and in a first frame of the driving voltage, outputs during a first interval, a first voltage that is positive and outputs during a second interval that is longer than the first interval, a second voltage that is positive, and in a second frame, outputs during the first interval, the first voltage that is negative and outputs during the second interval that is longer than the first interval, the second voltage that is negative. The control circuit varies the first voltage and the second voltage according to the measured temperature.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: March 20, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventors: Haruki Amakawa, Shinya Kondoh
  • Patent number: D812509
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: March 13, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventor: Ryuji Tonohori
  • Patent number: D812573
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: March 13, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: Kaori Amano
  • Patent number: D813689
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: March 27, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventor: Marie Yoshida
  • Patent number: D813702
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: March 27, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventor: Marie Yoshida
  • Patent number: D819458
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: June 5, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventors: Rido Sasaki, Sosuke Fujimoto
  • Patent number: D819459
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: June 5, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventor: Maiko Kimura