Patents Assigned to Citizen Watch Co., Ltd.
  • Patent number: 10043954
    Abstract: In a first aspect of the present inventive subject matter, a lighting device includes a light-emitting element that includes a first electrode and a second electrode on a lower surface of the light-emitting element; a phosphor layer directly covering a peripheral side surface of the light-emitting element; and a light-reflecting layer that is in contact with an upper surface of the light-emitting element and in contact with an upper surface of the phosphor layer directly covering the peripheral side surface of the light-emitting element.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: August 7, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: Takashi Iino
  • Patent number: 10044289
    Abstract: The LED drive circuit has a rectifying circuit that rectifies an alternating-current voltage, an LED string including a plurality of LEDs connected in series, a first switch whose one end is connected to a cathode of an LED in a last stage of the LED string, a capacitor whose one end is connected to the other end of the first switch, a second switch that is connected between one end of the capacitor and the anode of the LED in the first stage of the LED string, and a third switch that is connected between the cathode of the LED in the last stage of the LED string and a second terminal of the rectifying circuit, and which turns on when the full-wave rectified voltage is lower than a charge start voltage and turns off when the full-wave rectified voltage is higher than or equal to the charge start voltage.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: August 7, 2018
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN ELECTRONICS CO., LTD.
    Inventor: Takashi Akiyama
  • Publication number: 20180201030
    Abstract: A first feeding unit is configured that is provided in a first printing unit that includes a first recording unit that executes a recording operation for a long strip-like recording medium pulled out from a first holding unit that holds the recording medium in a wound state. The first feeding unit further includes a pair of feeding rollers that sort the recording medium discharged from the first printing unit, to the side of a second printing unit stacked on the first printing unit or to the side opposite to that of the second printing unit. The first feeding unit temporarily accommodates the sorted recording medium and thereafter, feeds the recording medium to a guide path, and sorts the recording medium fed by the pair of feeding rollers, to the side of the second printing unit using a sorting part.
    Type: Application
    Filed: May 31, 2016
    Publication date: July 19, 2018
    Applicants: Citizen Watch Co., Ltd., Citizen Systems Japan Co., Ltd.
    Inventors: Takeshi YAMAZAKI, Akira TAKAHASHI
  • Patent number: 10026877
    Abstract: An LED module according to the present invention includes: a mounting substrate; a first LED group including a plurality of LEDs mounted in a first light-emitting area extending in a first direction on the mounting substrate; a second LED group including a plurality of LEDs mounted in a second light-emitting area located outside the first light-emitting area; a dam material surrounding a periphery of the second light-emitting area; a first fluorescent resin coating the first LED group and causing the first light-emitting area to emit light having a first color temperature; and a second fluorescent resin coating at least the second LED group and causing the second light-emitting area to emit light having a second color temperature higher than the first color temperature, and viscosity of the first fluorescent resin is higher than viscosity of the second fluorescent resin.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 17, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Takashi Akiyama, Tatsuro Yamada, Satoshi Goto
  • Patent number: 10025292
    Abstract: An offset number setting device that freely and easily sets an offset number for a tool to be mounted on a tool holder of a turret surface. A display linkage unit displays a turret surface selection screen on a display, displays a tool holder selection screen on the display by selecting the turret surface, and displays an offset number setting screen on the display by selecting the tool holder. An offset number is therefore set for the tool along with the selection of the turret surface on which the tool is mounted.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: July 17, 2018
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Takanori Shinohara, Shinji Fujita
  • Patent number: 10024517
    Abstract: A lens member includes a light-incident side; a light-exit side that is opposite to the light-incident side, a Fresnel lens arranged on a center axis that passes through a center of the light-incident side, and a diffraction grating structure arranged around a periphery of the Fresnel lens and having a center through which the center axis passes. Also, it is disclosed that the Fresnel lens may include a first Fresnel lens and a second Fresnel lens, the first Fresnel lens includes annular prisms that are divided from a convex lens and having a center through which the center axis of the light-incident side passes, and the second Fresnel lens includes annular prisms that are divided from a TIR lens and arranged around the periphery of the first Fresnel lens, centering around the center axis of the light-incident side.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: July 17, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Junji Miyashita, Yasuaki Kayanuma, Kenji Matsumoto
  • Patent number: 10020291
    Abstract: An LED light emitting device with good color mixing property is provided. The LED light emitting device including a rectangular substrate having a short-side and a long-side and a first LED element, a second LED element and a third LED element that are mounted on a surface of the substrate and emit light with wavelengths different from one another, wherein the first LED element and the second LED element are mounted on the substrate so that a first distance from the short-side to a mounting position of the first LED element in the long-side direction of the substrate and a second distance from the short-side to a mounting position of the second LED element in the long-side direction are the same.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: July 10, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Toshiyuki Mizuno, Kazuya Ishihara, Akira Watanabe, Yasuo Nakanishi
  • Patent number: 10010944
    Abstract: A first driving force transmission part is disposed between an attachment part turning transmission shaft and a tool attachment part. The first driving force transmission part transmits rotary driving force from a side of the attachment part turning transmission shaft to the side of the first turning driving force transmission shaft, and includes a groove, a tenon shaped protrusion, and protrusions. The groove is formed on a tip of a slide shaft of the attachment part turning transmission shaft. The tenon shaped protrusion is formed in the first turning driving force transmission shaft and detachably engages with the groove. The protrusions once releases an engaging posture by pressing the groove that is biased to the engaging posture in an disengaging state when the tool is in the middle of the movement to a predetermined position.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: July 3, 2018
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.
    Inventor: Atsushi Aoyagi
  • Patent number: 10005291
    Abstract: When sub-images are sequentially transferred and connected together to form a larger image than would be possible with a single transfer operation, the occurrence of a color change in the overlapping region of the sub-images is suppressed and the width of the overlapping region is reduced as much as possible. Color image data are divided into image data of two sub-images containing an overlapping region and having edges that coincide for each color ink transferred to paper. Color values of the color image data in the overlapping region are converted by using a color conversion factor group created in advance for each position on the overlapping region so as to cancel out a color change that occurs in the overlapping region when the sub-images are transferred with one overlapping the other. The image data of the sub-images are corrected by adjusting converted color values in the overlapping region by using a correction factor for print density at each position on the overlapping region.
    Type: Grant
    Filed: December 25, 2015
    Date of Patent: June 26, 2018
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN SYSTEMS JAPAN CO., LTD.
    Inventor: Takeshi Yamazaki
  • Patent number: 10001672
    Abstract: A side edge planar lighting unit includes a light emitting diode, a light guide plate, and a transparent flexible resin between the light emitting diode and the light guide plate. The light emitting diode and the light guide plate are brought into close contact by the transparent flexible resin. The light guide plate includes a light exit face on a first main surface, a reflective face on a side opposite the light exit face, and a recessed portion in a first side edge. The recessed portion includes the light entrance face on a bottom surface, a pair of light entrance side faces facing each other across the light entrance face, and an anti-slip portion made of an uneven structure on at least one of the light entrance side faces. The transparent flexible resin is fitted in the recessed portion of the light guide plate.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: June 19, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Kiyokazu Watanabe, Yoshihiro Sho, Naoya Kashiwagi, Takashi Watanabe, Takumi Miyashita, Toshinobu Katsumata, Takuma Horiuchi, Junji Miyashita, Tomoo Udagawa, Kazuhiro Uwajima
  • Patent number: 9993903
    Abstract: A workpiece supply device is provided that is capable of supplying a workpiece to be machined next in a supplying area of the workpiece outside a machining area while the machining area is closed to control scattering of cutting fluid from the machining area during the machining of the workpiece. A machine tool includes a machining room of the workpiece, a loader room, a dividing wall having an opening part, a main spindle, a workpiece supply device, a delivery device, and an ejection device. The workpiece supply device includes a workpiece holder, a movement mechanism, a cover member, and a coil spring. The coil spring biases the cover member to close the opening part by the cover member such that the workpiece holder holds the workpiece in the loader room during the machining of the workpiece in the machining room.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: June 12, 2018
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.
    Inventor: Shingo Itoh
  • Patent number: 9995889
    Abstract: Provided is a mounting component for an optical fiber that allows a laser device and an optical fiber to be aligned with higher precision while providing protection for the laser device mounted on a substrate.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: June 12, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventors: Kaoru Yoda, Masafumi Ide
  • Publication number: 20180158998
    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, wherein the light is a mixture of light emitted from densely-mounted light-emitting elements and excited light from a phosphor contained in a resin sealing the light-emitting elements. The light-emitting device includes a board, light-emitting elements mounted densely on the board so that light-emitting surfaces thereof face opposite to the board, and a seal resin containing a plurality of different phosphors and covering all of the light-emitting elements, wherein the phosphors are excited by light from the light-emitting elements and deposited on upper surfaces of the light-emitting elements. A space between adjacent light-emitting elements has a length of 5 ?m or more and 120% or less of a median diameter D50 of a phosphor which has the largest average particle size of the phosphors.
    Type: Application
    Filed: May 30, 2016
    Publication date: June 7, 2018
    Applicants: Citizen Electronics Co., Ltd., Citizen Watch Co., Ltd.
    Inventors: Sadato IMAI, Masahide WATANABE, Hirohiko ISHII, Koki HIRASAWA
  • 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: D820693
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: June 19, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventor: Benjamin Cheng Chin Hoi
  • Patent number: D822508
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 10, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventor: Ryuji Tonohori
  • Patent number: D822510
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 10, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventor: Cheng Yu Kwong
  • Patent number: D823136
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 17, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventors: Yasushi Takahashi, Hideki Inoue
  • Patent number: D823139
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 17, 2018
    Assignee: CITIZEN WATCH CO., LTD.
    Inventor: Akihiko Kuroda
  • Patent number: D823269
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: July 17, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Takashi Iino, Nodoka Oyamada