Patents Assigned to Citizen Holdings Co., Ltd.
  • Publication number: 20160002562
    Abstract: [Problem] To provide a lubricating oil composition for a timepiece, said composition being excellent in wear resistance and extreme pressure properties. [Solution] The lubricating oil composition for a timepiece according to the present invention contains a lubricant component (A) containing a base oil (A1), at least one antiwear agent (B) selected from a neutral phosphate ester (B-1) and a neutral phosphite ester (B-2), and an antioxidant (C), and is characterized in that the total acid number of the composition is not more than 0.8 mgKOH/g, the antiwear agent (B) is contained in an amount of 0.1 to 15 parts by mass based on 100 parts by mass of the lubricant component (A), and the antioxidant (C) is contained in an amount of 0.01 to 3 parts by mass based on 100 parts by mass of the lubricant component (A), and the neutral phosphate ester (B-1) is represented by the following general formula (b-1) and the neutral phosphite ester (B-2) is represented by the following general formula (b-2).
    Type: Application
    Filed: January 14, 2014
    Publication date: January 7, 2016
    Applicants: CITIZEN WATCH CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventor: Yuji AKAO
  • Patent number: 9229584
    Abstract: The present invention is directed to the provision of an information input apparatus that can change the projection position of an input image by tracking a target object and can detect an information input to the input image. More specifically, the invention provides an information input apparatus includes a projection unit which projects an input image, a projection position changing unit which changes the projection position of the input image, a detection sensor which detects the position of a detection target, and an information detection unit which causes the projection position changing unit to change the projection position of the input image by tracking the position of the detection target detected by the detection sensor, and which detects an information input to the input image based on data supplied from the detection sensor.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: January 5, 2016
    Assignee: CITIZEN HOLDINGS CO., LTD.
    Inventors: Masafumi Ide, Masaya Suzuki, Yosuke Abe, Takaaki Nozaki, Akio Yoshinaga, Yuji Noda
  • Patent number: 9232573
    Abstract: In a first aspect of the present inventive subject matter, a lighting device includes a substrate, a light-emitting element electrically mounted on the substrate, a frame member including a white-colored resin and surrounding the light-emitting element, and a light-transmitting resin in which the light-emitting element and the frame member are embedded. Also, it is suggested that the frame member further includes a light-shielding member entirely sealed by the white-colored resin.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: January 5, 2016
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventor: Junji Miyashita
  • Publication number: 20150382420
    Abstract: The purpose of the present invention is to provide an LED drive circuit that is capable of ameliorating insufficient lighting and improving power utilization efficiency.
    Type: Application
    Filed: February 18, 2014
    Publication date: December 31, 2015
    Applicants: CITIZEN HOLDINGS CO., LTD., CITIZEN ELECTRONICS CO., LTD.
    Inventors: Keisuke Sakai, Takashi Akiyama, Satoshi Goto, Shigehisa Watanabe, Tatsuro Yamada
  • Patent number: 9226364
    Abstract: The purpose of the present invention is to provide an LED lighting circuit, which can normally light an LED even if an alternating current power supply is an electronic transformer, an LED illuminating device, and a socket for an LED illuminating unit. Disclosed is an LED lighting circuit includes a rectifier circuit for rectifying an AC output from an AC power supply, an LED drive unit, which drives the LED by having rectifying output inputted thereto from the rectifying circuit, a reverse current preventing unit, which is provided between the rectifying circuit and the LED drive unit, and a terminal voltage control unit, which reduces the output terminal voltage of the rectifying circuit in the case where the alternating current output from the alternating current power supply is unstable or stopped. Also provided are an LED illuminating device, and a socket for an LED illuminating unit.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: December 29, 2015
    Assignees: CITIZEN HOLDINGS CO., LTD., CITIZEN ELECTRONICS CO., LTD.
    Inventors: Hisashi Fukasawa, Takashi Akiyama
  • Patent number: 9222424
    Abstract: An internal combustion engine fitted with a combustion pressure detection device includes: an internal combustion engine having a combustion chamber, a pressure detection device having a housing, a diaphragm, and a detection member, and having a shoulder part. The diaphragm is provided on the front end side of the housing and the detection member arranged inside the housing and behind the diaphragm, allowing it to detect the pressure working via the diaphragm. Also provided is a second seal member in a ring shape that seals the opening in the combustion chamber and the housing in the shoulder part of the housing in the pressure detection device.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 29, 2015
    Assignees: CITIZEN FINEDEVICE CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventors: Kazuo Takahashi, Yoshihiko Soga, Tsuyoshi Misaizu
  • Patent number: 9224720
    Abstract: In an aspect of the present invention, a light-emitting device includes a substrate; a first electrode and a second electrode arranged on an upper surface of the substrate with a gap between the first electrode and the second electrode, the gap being positioned at a central portion of the upper surface of the substrate; a first light-emitting diode element electrically mounted on the first electrode; and a second light-emitting diode element electrically mounted on the second electrode, wherein the first electrode includes a first inner portion and a first outer portion that are two equal area portions divided at a center line of the first electrode, and the first light-emitting diode element is mounted on the first outer portion of the first electrode, and wherein the second electrode includes a second inner portion and a second outer portion that are two equal area portions divided at a center line of the second electrode, and the second light-emitting diode element is mounted on the second outer portion of
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: December 29, 2015
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventors: Junji Miyashita, Kosuke Tsuchiya, Nodoka Oyamada
  • Patent number: 9220142
    Abstract: A light-emitting device includes a mounting area that includes a first end and a second end opposite to the first end, a first electrode group disposed adjacent to the first end of the mounting area, a second electrode group disposed adjacent to the second end of the mounting area, a plurality of files each in that a plurality of light-emitting elements are arranged in the mounting area to extend from a vicinity of the first end of the light-emitting area to a vicinity of the second end of the mounting area and electrically connected in series with each other of the light-emitting elements in each file. Light-emitting elements included in two or more files can be a light-emitting block to be lighted together through electrodes of the first electrode group and the second electrode group.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: December 22, 2015
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventors: Takakazu Yano, Masato Asahina, Arata Shimozawa, Koichi Fukasawa
  • Publication number: 20150364451
    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: Application
    Filed: June 15, 2015
    Publication date: December 17, 2015
    Applicants: CITIZEN ELECTRONICS CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventors: Toshiyuki Mizuno, Kazuya Ishihara, Akira Watanabe, Yasuo Nakanishi
  • Patent number: 9212991
    Abstract: A refractive index measurement apparatus includes a light source, a measurement cell including a sample as an object of refractive index measurement and diffracting light incident from the light source, a detector that detects the amount of diffracted light in at least one diffraction order other than zero order of diffracted light exiting from the measurement cell, and a control unit that determines refractive index of the sample based on the measured value of the amount of diffracted light by the detector. The measurement cell includes two substrates disposed so as to be opposed to each other and a diffraction grating disposed between the two substrates, and the diffraction grating has a plurality of members whose width decreases stepwise as approaching from one of the substrates to the other of the substrates, the sample being filled in the space between the substrates not occupied by the diffraction grating.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: December 15, 2015
    Assignee: CITIZEN HOLDINGS CO., LTD.
    Inventors: Yuka Saito, Nobuyuki Hashimoto
  • Patent number: 9214446
    Abstract: The present invention is directed to provide a method of manufacturing an optical module in which optical devices are optically aligned with high precision regardless of elastic return of bonding bumps. The invention provides a method of manufacturing an optical module including the steps of forming bumps for bonding made of metal on a substrate, and bonding a second optical device on the bonding bumps by applying a load so that the bumps for bonding are deformed only by a predetermined amount from a position where a first optical device and the second optical device are optically coupled most efficiently and, after that, releasing the load.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: December 15, 2015
    Assignee: CITIZEN HOLDINGS CO., LTD.
    Inventor: Kaoru Yoda
  • Patent number: 9212408
    Abstract: A decorative part comprising a hardening layer having a pink Au alloy coating film on a surface of the part. The hardening layer is obtainable by laminating a base layer, a primary layer and a finishing layer from the side of a substrate. The base layer comprises a metal layer comprising one metal or two or more metals selected from Hf, Ti and Zr and, superimposed thereon, a compound layer comprising the same metal constituting the metal layer and further comprising nitrogen, carbon or oxygen. The primary layer has a laminating structure such that an Au alloy layer, and a compound layer comprising one metal or two or more metals selected from Hf, Ti and Zr and further comprising nitrogen, carbon or oxygen are laminated one after the other. The finishing layer comprises an Au alloy layer.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: December 15, 2015
    Assignee: CITIZEN HOLDINGS CO., LTD.
    Inventors: Junji Satoh, Yoshitsugu Shibuya, Maki Hayakawa, Ryota Koike
  • Publication number: 20150345763
    Abstract: In accordance with a first aspect of the present inventive subject matter, a lighting device includes light-emitting elements arranged in lines that are extended in parallel with one another, the light-emitting elements being divided into groups each including the same number of light-emitting elements, a first connecting electrode is disposed adjacent to one end portion of the lines extended, a second connecting electrode is disposed adjacent to another end portion of the lines extended, and the light-emitting elements within each group are electrically connected in series with one another by metallic wires and electrically connected in series to the first connecting electrode and to the second connecting electrode. The groups each include the same number of light-emitting elements that are electrically connected in parallel between the first connecting electrode and the second connecting electrode.
    Type: Application
    Filed: August 5, 2015
    Publication date: December 3, 2015
    Applicants: CITIZEN HOLDINGS CO., LTD., CITIZEN ELECTRONICS CO., LTD.
    Inventor: TAKUYA FUNAKUBO
  • Patent number: 9200795
    Abstract: Providing a lighting device wherein provisions are made to be able to provide a sufficiently high dielectric strength while retaining the required heat-sink property even when a module substrate with a plurality of LED elements mounted thereon is reduced in size. A lighting device includes a module substrate on an upper surface of which are mounted a plurality of LED elements, a heat-sink member, having a raised portion, for dissipating heat generated by the plurality of LED elements, and an insulating sheet formed with an opening and interposed between a portion of the lower surface of the module substrate and the heat-sink member, and wherein the raised portion is formed so as to be located via the opening in close proximity to the lower surface of a region where the plurality of LED elements are mounted on the module substrate.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: December 1, 2015
    Assignees: CITIZEN HOLDINGS CO., LTD., CITIZEN ELECTRINOCS CO., LTD.
    Inventors: Ryo Tamura, Takashi Akiyama
  • Publication number: 20150338639
    Abstract: A phase modulation device corrects wave front aberrations generated by an optical system including an objective lens disposed on an optical path of a light flux. The phase modulation device includes a phase modulation element which includes a plurality of electrodes, and modulates the phase of the light flux in accordance with a voltage applied to each electrode, and a control circuit which controls the voltage to be applied to each electrode. The control circuit controls the voltage to be applied to each electrode in such a manner that the light flux is imparted with a phase modulation amount in accordance with a phase modulation profile having a polarity opposite to the polarity of a phase distribution to be determined according to a relational equation representing a relationship between a numerical aperture of the objective lens and a ratio between third-order spherical aberration and fifth-order spherical aberration.
    Type: Application
    Filed: February 1, 2013
    Publication date: November 26, 2015
    Applicant: CITIZEN HOLDINGS CO., LTD.
    Inventors: Kenji MATSUMOTO, Ayano TANABE, Masafumi YOKOYAMA, Nobuyuki HASHIMOTO, Makoto KURIHARA
  • Publication number: 20150337233
    Abstract: [Problem] To provide a lubricating oil composition for a timepiece, said composition being excellent in durability. [Solution] The lubricating oil composition for a timepiece according to the present invention contains a lubricant component (A) containing a base oil (A1), at least one antiwear agent (B) selected from a neutral phosphate ester and a neutral phosphite ester, and an antioxidant (C), and is characterized in that the total acid number of the composition is not more than 0.8 mgKOH/g, the antiwear agent (B) is contained in an amount of 0.1 to 15 parts by mass based on 100 parts by mass of the lubricant component (A), the antioxidant (C) is contained in an amount of 0.01 to 3 parts by mass based on 100 parts by mass of the lubricant component (A), and the composition contains a diphenylamine derivative (C-1) represented by the following general formula (c-1) and a hindered amine compound (C-2) represented by the following general formula (c-2) as the antioxidants (C).
    Type: Application
    Filed: January 14, 2014
    Publication date: November 26, 2015
    Applicants: CITIZEN WATCH CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventor: Yuji AKAO
  • Patent number: 9195114
    Abstract: The invention is directed to the provision of an optical device in which provisions are made to form a gap between an optical waveguide and a substrate without having to form a groove or the like in the substrate and to prevent any stress from being applied to an optical element even when it is heated by a heater for temperature adjustment. More specifically, the invention provides an optical device includes a substrate, an optical element with an optical waveguide formed in a surface thereof that faces the substrate, bonding portions formed on the substrate at positions that oppose each other across the optical waveguide, a heater, formed on at least one of the optical element and the substrate, for heating the optical waveguide, and a micro bump structure formed from a metallic material, wherein the optical element is bonded to the bonding portions via the micro bump structure in such a manner that a gap is formed between the optical waveguide and the substrate.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: November 24, 2015
    Assignee: CITIZEN HOLDINGS CO., LTD.
    Inventors: Masafumi Ide, Takaaki Nozaki, Kaoru Yoda, Yosuke Abe
  • Patent number: 9196801
    Abstract: In a first aspect of the present invention, a lighting device includes a light-emitting element, a frame including a phosphor that can be excited by light emitted from the light-emitting element, the frame having an inner side surface surrounding the light-emitting element and an outer side surface being positioned outside the inner side surface that demarcates a quadrilateral area, and a light-transmitting resin arranged in the quadrilateral area demarcated by the inner side surface of the frame and sealing the light-emitting element that is positioned inside the quadrilateral area, and the light-transmitting resin being further provided in contact with an outer side surface of the frame. In some embodiments, it is disclosed that the light-transmitting resin provided in contact with the outer side surface of the frame may include a diffuser.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: November 24, 2015
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventor: Atsushi Kanemaru
  • Patent number: 9185672
    Abstract: Power consumption when reception is carried out in response to a reception instruction by a user is reduced in a satellite radio-controlled wristwatch.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: November 10, 2015
    Assignees: CITIZEN HOLDINGS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: Akira Kato
  • Publication number: 20150316215
    Abstract: Provided is an LED module which, even when CSP LED devices are arrayed adjacent to each other, emits light at a light emission color of a single LED device and is bright. An LED module includes a module substrate, first LED devices having a lateral surface which is configured of an optically transmissive face, and second LED devices having a lateral surface which is configured of a light blocking face. The first LED devices are mounted upon the module substrate adjacent to the second LED devices such that the translucent faces of the first LED devices and the light blocking faces of the second LED devices are in opposition.
    Type: Application
    Filed: November 29, 2013
    Publication date: November 5, 2015
    Applicants: CITIZEN HOLDINGS CO., LTD., CITIZEN ELECTRONICS CO., LTD.
    Inventor: Masato Togawa