Patents Assigned to Citizen Watch Co., Ltd.
  • Patent number: 10801710
    Abstract: An LED lighting device capable of discharging heat generated from a light emitting element to the outside the LED lighting device. An LED lighting device includes: a plurality of light emitting elements; a mounted substrate on which the light emitting elements are mounted; and an electrode portion configured to supply a current to the light emitting elements from outside the LED lighting device. On the mounted substrate, a wiring substrate is located. On the upper surface of the mounted substrate, the mounted substrate includes: a light emitting region in which the plurality of light emitting elements are mounted; an exposed region which is located on the outer side of the light emitting region and through which the upper surface of the mounted substrate is exposed; and a wiring region which is located on the outer side of the light emitting region and in which the wiring substrate is located.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: October 13, 2020
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Takashi Iino, Sadato Imai
  • Publication number: 20200319605
    Abstract: A radio wave watch includes: an exterior case; a dial plate disposed within the exterior case; a substrate disposed on a rear side of the dial plate within the exterior case; a first ground layer disposed on the substrate; an antenna that has a planar emitting electrode disposed between a center of the exterior case and an inner wall surface of the exterior case and opposed to the first ground layer, a planar short-circuit part electrically connecting an end part of the emitting electrode to the first ground layer, and a connecting part connecting the emitting electrode to a receiving circuit of the substrate; and a second ground layer disposed on an opposite side to the emission electrode side across the short-circuit part on the substrate and having a width equal to or greater than a width of the short-circuit part.
    Type: Application
    Filed: September 18, 2018
    Publication date: October 8, 2020
    Applicant: CITIZEN WATCH CO., LTD.
    Inventors: Yoshiyasu WATANABE, Ken KITAMURA, Shuji NAKA, Akira KATO
  • Patent number: 10793935
    Abstract: An object of the present invention is to provide a clock screw having a deep interference film blue color that contributes to decorativeness while also having superior scratch resistance and corrosion resistance, and a method for producing the same. The means for solving provided by the present invention consists of: a clock screw comprising a screw base material made of steel containing carbon at 0.5% by weight to 1.0% by weight, an oxide layer of the steel on the screw base material having a thickness of 60 nm to 80 nm, and a fluorine coating film on the oxide layer; and, a method for producing the clock screw comprising: a step for preparing the screw base material, a step for forming the oxide layer by heating the screw base material for 30 minutes or longer at a temperature of 300° C. or lower in an air atmosphere, and a step for forming the fluorine coating film on the oxide layer.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: October 6, 2020
    Assignee: CITIZEN WATCH CO., LTD.
    Inventors: Haruko Yamazaki, Yoshiro Hirai
  • Patent number: 10796892
    Abstract: A sample mounting plate which is used for mass spectrometry according to MALDI process and which is provided with at least one sample loading spot for mounting a sample on a substrate, wherein: a hydrophilic surface produced by a first hydrophilic film is formed within the sample loading spot on a surface of the substrate provided with the sample loading spot; a hydrophobic surface produced by a hydrophobic film is formed on the outside of the hydrophilic surface; and a boundary part, in which a hydrophilic member or a second hydrophilic film having a higher hydrophilicity than the first hydrophilic film is exposed, is formed at the boundary between the hydrophilic surface and the hydrophobic surface.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: October 6, 2020
    Assignees: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Kazuhiro Toriumi, Tomoki Kuratomi
  • Patent number: 10793968
    Abstract: A method of production of a high insulation resistance, high strength langatate-based single crystal and a langatate-based single crystal are provided. That is, a method of production of a langatate-based single crystal using the Czochralski method of pulling up a crystal from a starting material solution so as to grow a langatate-based single crystal, comprising placing the starting material solution of the single crystal in a platinum crucible and growing the single crystal using the Z-axis as the growth axis in a growth atmosphere of a mixed gas comprising an inert gas in which an oxidizing gas is contained in an amount greater than 5 vol %.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: October 6, 2020
    Assignees: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Ikuo Takahashi, Takayuki Aoki, Youichi Nonogaki, Yoshitaka Kinoshita
  • Patent number: 10793771
    Abstract: A phosphor film includes phosphor particles, a thermally-conductive filler, and a hinder bonding the phosphor particles and the thermally-conductive filler together. The thermally-conductive filler includes glass particles and/or alumina particles. A weight ratio of a weight of the binder to a total weight of the phosphor particles and the thermally-conductive filler is in a range of 0.1 wt % to 5.0 wt %.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: October 6, 2020
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Norihiko Kobayashi, Hiroaki Hara, Hiroo Kajiwara
  • Publication number: 20200309869
    Abstract: To provide a magnetic sensor element and a magnetic sensor device that can be easily manufactured and can reduce a loss of light to the extent possible. The above-described problem is solved by a magnetic sensor element comprising a planar lightwave circuit (11) provided with a light branching part (12), an input optical fiber (19) and an output optical fiber (20) connected to the planar lightwave circuit (11), a metal magnetic body type light transmitting film (30) that is provided on one end surface of the planar lightwave circuit (11) and transmits light entered from the input optical fiber (19), and a reflecting film (40) that is provided on the metal magnetic body type light transmitting film (30) and reflects the transmitted light. The output optical fiber (20) is a polarization-plane maintaining optical fiber, and the input optical fiber (19) and the output optical fiber (20) are aligned and connected to the planar lightwave circuit (11).
    Type: Application
    Filed: September 28, 2018
    Publication date: October 1, 2020
    Applicants: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD., SHINSHU UNIVERSITY
    Inventors: Toshiya KUBO, Mitsunori MIYAMOTO, Toshiro SATO
  • Patent number: 10780708
    Abstract: In a printer that drives by a ribbon motor (302), a winding axle that holds an ink ribbon positioned between a thermal head that performs a photographic printing operation with respect to a photographic medium conveyed along a sub-scanning direction and a platen that opposes the photographic print head with the photographic medium between the photographic print head and the platen, a flywheel (303) is coupled to a shaft of the ribbon motor (302), and a rotational force of the ribbon motor (302) is transmitted to the winding axle, via a worm gear (501) and a helical gear (502).
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: September 22, 2020
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN SYSTEMS JAPAN CO., LTD.
    Inventors: Masao Yoshizawa, Takeshi Yamazaki
  • Patent number: 10773533
    Abstract: A printer includes a transport roller (driving roller, driven roller, counter roller) that is disposed in a casing, and configured to transport a sheet to be fed from roll paper, an image forming portion (thermal head) that is disposed in a cover (upper cover) of the casing, and configured to form an image on the sheet; and a platen roller that is disposed in the casing to face the image forming portion (thermal head). The image forming portion (thermal head) is movable in transport directions (feeding direction, drawing back direction) of the sheet, and the platen roller is movable in directions substantially vertical to the transport directions (feeding direction, drawing back direction).
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: September 15, 2020
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN SYSTEMS JAPAN CO., LTD.
    Inventor: Yutaka Inokuchi
  • Publication number: 20200282502
    Abstract: A machine tool includes: a cutting tool; rotating means; feeding means; and vibration means for reciprocatingly vibrating the cutting tool and the workpiece relative to each other; wherein the cutting process is carried out by a relative rotation of the workpiece and the cutting tool, and feeding of the cutting tool, to thereby move the cutting tool continuously along a plurality of predetermined movement paths each having a different machining feeding direction. The machine tool further includes vibration restriction means that operates as the movement of the cutting tool changes from one movement path of two consecutive movement paths to the other movement path, for restricting the reciprocating vibration for a predetermined period from the movement starting position of the movement paths, and starting the reciprocating vibration after the lapse of said predetermined period.
    Type: Application
    Filed: October 4, 2018
    Publication date: September 10, 2020
    Applicants: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.
    Inventors: Takaichi NAKAYA, Kazuhiko SANNOMIYA, Hiroshi SHINOHARA
  • Publication number: 20200285211
    Abstract: A mobile device includes a drive unit for which correspondence between a command that is input and a drive signal that is output to an operation unit is predetermined, and a controller configured to output the command to the drive unit and cause the operation unit to operate. The controller includes a storage unit storing therein a user program including script language and outputs the command in accordance with the user program.
    Type: Application
    Filed: March 5, 2020
    Publication date: September 10, 2020
    Applicant: CITIZEN WATCH CO., LTD.
    Inventors: Daisuke MATSUOH, Ryutaro UEMURA
  • Publication number: 20200287989
    Abstract: A program management system includes: a terminal device having a terminal processing unit capable of executing processing to create a computer program, and a terminal communication unit capable of transmitting the computer program created by the terminal processing unit to an outside; and an external device having an external device storage unit storing therein the computer program transmitted from the terminal device, and an external device processing unit capable of executing processing to give approval to the computer program stored in the external device storage unit. The external device storage unit stores therein appropriateness of approval of the computer program as first status information together with the computer program. The external device processing unit is capable of executing processing to manage the computer program based on the first status information.
    Type: Application
    Filed: March 4, 2020
    Publication date: September 10, 2020
    Applicant: CITIZEN WATCH CO., LTD.
    Inventors: Ryutaro UEMURA, Daisuke MATSUOH
  • Publication number: 20200280923
    Abstract: A portable electronic device includes: a sensor configured to detect a physical amount related to an amount of activity of a user; a communication unit configured to perform wireless communication; a controller configured to control supply of power to the sensor; and a storage unit configured to record, when pairing between the communication unit and an external device used by the user is executed, pairing information between the communication unit and the external device. A permission condition under which the controller permits the supply of power to the sensor includes a condition that pairing information is recorded in the storage unit.
    Type: Application
    Filed: February 27, 2020
    Publication date: September 3, 2020
    Applicant: CITIZEN WATCH CO., LTD.
    Inventors: Daisuke MATSUOH, Ryutaro UEMURA
  • Patent number: 10754299
    Abstract: An electronic watch with a two-coil stepper motor including: a magnetized rotor; a stator including: first and second stator magnetic-pole portions, which are formed so as to oppose to each other through the rotor; and a third stator magnetic-pole portion, which is formed between the first stator magnetic-pole portion and the second stator magnetic-pole portion so as to face the rotor; a coil A to be magnetically coupled to the first stator magnetic-pole portion and the third stator magnetic-pole portion; and a coil B to be magnetically coupled to the second stator magnetic-pole portion and the third stator magnetic-pole portion; and a high-speed drive pulse generation circuit configured to output a drive pulse for driving the rotor to the coil A or the coil B, and wherein the rotor is rotationally driven in increments of 360° due to a drive pulse train formed of the plurality of drive pulses.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: August 25, 2020
    Assignee: CITIZEN WATCH CO., LTD.
    Inventors: Yu Takyoh, Toshiaki Fukushima, Toshinari Maeda, Daisuke Iri, Daisuke Matsuoh, Masatoshi Nishida
  • Patent number: 10744567
    Abstract: The invention provides a control apparatus for a machine tool, which can perform reciprocating vibration in consideration of a vibration frequency, increase flexibility in machining a workpiece, and perform vibration cutting by means of an external spindle or the like without rotating a spindle. The control apparatus and the machine tool include control means. The control means includes an imaginary spindle regarded as a spindle for rotating a workpiece W or a cutting tool. The control means sets the number of rotations of the imaginary spindle and the number of reciprocating vibrations in accordance with a vibration frequency attributable to a cycle during which an operation instruction can be issued.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: August 18, 2020
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.
    Inventors: Kazuhiko Sannomiya, Takaichi Nakaya
  • Patent number: 10744611
    Abstract: In a machine tool, under user set conditions, a cutting tool is fed in a feeding direction while the cutting tool is moved repetitively to cut a workpiece smoothly while separating chips easily. In the machine tool and a control apparatus thereof, control means is configured to set the number of rotations of relative rotation for executing machining of a workpiece, and the number of repetitions of repetitive movement during one rotation of the relative rotation in accordance with a repetitive movement frequency attributable to a cycle during which an operation instruction can be issued.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: August 18, 2020
    Assignees: Citizen Watch Co., Ltd., Citizen Machinery Co., Ltd.
    Inventors: Takaichi Nakaya, Kazuhiko Sannomiya, Hiroshi Shinohara
  • Publication number: 20200251037
    Abstract: A display system includes mobile devices each including a position detection unit that detects a position, a physical quantity detection unit that detects a physical quantity, a display unit that displays an image, and a process unit that can perform a process of controlling the display unit so that the image is displayed. The process unit can perform an overlapping display process in which the process unit controls the display unit so as to display a physical quantity image expressing the physical quantity detected by the physical quantity detection unit in a manner of overlapping on a travel route image expressing a travel route of the mobile device that is determined depending on the position detected by the position detection unit.
    Type: Application
    Filed: February 5, 2020
    Publication date: August 6, 2020
    Applicant: CITIZEN WATCH CO., LTD.
    Inventors: Ryutaro UEMURA, Daisuke MATSUOH, Toshinori OKAZAKI, Shoya KANEKO, Ayaka OHTAKE
  • Patent number: D892919
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: August 11, 2020
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN SYSTEMS JAPAN CO., LTD.
    Inventor: Takeshi Nakatani
  • Patent number: D892920
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: August 11, 2020
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN SYSTEMS JAPAN CO., LTD.
    Inventor: Takeshi Nakatani
  • Patent number: D895559
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: September 8, 2020
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD
    Inventors: Shingo Kuriki, Masahiro Watanabe, Kazuki Matsumura, Yuji Omori