Patents Assigned to CITIZEN FINEDEVICE CO., LTD.
  • 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: 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
  • 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: 10724917
    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: Grant
    Filed: September 21, 2017
    Date of Patent: July 28, 2020
    Assignees: 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: 10718681
    Abstract: A pressure detecting device that detects the combustion pressure in an internal combustion engine includes: a piezoelectric element that outputs a charge signal corresponding to the pressure in a combustion chamber; and a mounting board on which are mounted an integrating circuit that integrates the charge signal outputted by the piezoelectric element and an amplifier circuit that amplifies a voltage signal obtained by integration. On the mounting board are provided: a power receiving terminal that receives a power-supply voltage from a controller; an output terminal that outputs an output signal after amplification to the controller; and a grounding terminal for making the ground of the controller and the mounting board common. Furthermore, in the mounting board, the grounding terminal and grounding ends of the integrating circuit and the amplifier circuit are connected by way of grounding ferrite beads.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: July 21, 2020
    Assignees: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Yuta Kanamori, Tetsuya Aiba, Masanori Yomoyama, Satoshi Sue
  • Patent number: 10665445
    Abstract: A sample loading plate that includes at least one sample mounting spot that mount a sample thereon is provided with a substrate having a conductive surface and an insulating film that is laminated on the conductive surface of the substrate and that has at least an insulating surface, the insulating film being sparsely formed so that the conductive surface of the substrate is partially exposed at least in the sample mounting spot. Thus, a voltage applied to the sample loading plate can effectively place the sample in an electric field. As a result of which, in a mass spectrometric analysis of the sample, there is no charge up of the sample and appropriate ionization becomes possible.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: May 26, 2020
    Assignees: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Kazuhiro Toriumi, Mitsunori Miyamoto, Satoru Fukumoto
  • Patent number: 10577338
    Abstract: New classes of thiadiazole and oxadiazole compounds for use in LC mixtures are disclosed. In an embodiment, the new classes of thiadiazoles and oxadiazoles comprise at least one phenyl ring attached to the heterocyclic ring, where no alkyl, alkenyl or alkynyl tails are attached to the phenyl ring, but one alkyl, alkenyl or alkynyl tail is attached to the other end of the molecule, and a fluoro or cyano group appears in the para position of the phenyl ring. These compounds are disclosed as being effective at inducing smectic A phases in liquid crystal mixtures, particularly in liquid crystal mixtures also possessing a smectic C phase, more particularly in materials possessing a chiral smectic C (ferroelectric) phase.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: March 3, 2020
    Assignee: CITIZEN FINEDEVICE CO., LTD.
    Inventors: William Thurmes, Christopher Gabriel
  • Patent number: 10458328
    Abstract: A combustion pressure sensor has a case member with a joint surface on the side of a tip end and in which an opening portion is provided. A joint surface of a pressure reception member on which a combustion pressure acts is brought into planar contact with the joint surface of the case member so as to block the opening portion. A welding portion joins the joint surfaces to each other. A piezoelectric element stored in the case member converts a pressing force based on the combustion pressure transmitted from the pressure reception member into a signal. On the side of one edge side in at least the one joint surface, the one joint surface is limited to a given depth of welding from the other edge side. A predetermined clearance portion is provided so as to form a predetermined gap with the opposite joint surface and a welding portion is provided which includes at least all the limited joint surface from the other edge side in the one joint surface.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: October 29, 2019
    Assignees: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Kazuo Takahashi, Yoshihiko Soga
  • Patent number: 10247634
    Abstract: A disconnection detection circuit includes: a pull-up resistor to which the detection signal is fed and which connects a signal line connected to the wiring cable to a power supply or a pull-down resistor which connects the signal line to a GND; and a voltage clip circuit 105 which includes a high-voltage clip circuit which is connected between the signal line and the power supply and which clips the voltage of the signal line to the maximum specified voltage and a low-voltage clip circuit which is connected between the signal line and the GND and which clips the voltage of the signal line to the minimum specified voltage.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: April 2, 2019
    Assignees: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Rikoku Nakamura, Masanori Yomoyama, Tetsuya Aiba, Yuta Kanamori
  • Publication number: 20190086281
    Abstract: In piezoelectric sensors, conventional amplification factor adjustment methods involving the cutting of a wiring pattern or use of a laser trimmable resistor are unable to adjust the amplification factor when the sensor is in a completed state. As a result, the production process becomes complex and production costs increase. Further, because the amplification factor adjustment is carried out in a different state from that of the finished product, the problem that the amplification factor is not set correctly in the finished product also occurs. A non-volatile memory is incorporated in an integrated circuit in which are integrated piezoelectric sensor circuit elements. The amplification factor is adjusted by writing data from a writing terminal to change an amplification resistor.
    Type: Application
    Filed: March 21, 2017
    Publication date: March 21, 2019
    Applicants: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Rikoku NAKAMURA, Masanori YOMOYAMA
  • Publication number: 20190078958
    Abstract: A pressure detecting device that detects the combustion pressure in an internal combustion engine includes: a piezoelectric element that outputs a charge signal corresponding to the pressure in a combustion chamber; and a mounting board on which are mounted an integrating circuit that integrates the charge signal outputted by the piezoelectric element and an amplifier circuit that amplifies a voltage signal obtained by integration. On the mounting board are provided: a power receiving terminal that receives a power-supply voltage from a controller; an output terminal that outputs an output signal after amplification to the controller; and a grounding terminal for making the ground of the controller and the mounting board common. Furthermore, in the mounting board, the grounding terminal and grounding ends of the integrating circuit and the amplifier circuit are connected by way of grounding ferrite beads.
    Type: Application
    Filed: February 27, 2017
    Publication date: March 14, 2019
    Applicants: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Yuta KANAMORI, Tetsuya AIBA, Masanori YOMOYAMA, Satoshi SUE
  • Patent number: 10221782
    Abstract: An in-cylinder pressure detecting apparatus for detecting a pressure in a combustion chamber of an internal combustion engine is provided. The in-cylinder pressure detecting apparatus comprises a pressure detecting element mounted on a tip-portion of a fuel injection device which injects fuel into the combustion chamber, and an amplifying circuit unit having an amplifying circuit which amplifies a signal output from the pressure detecting element and outputs a pressure detection signal. An in-cylinder pressure detecting unit integrated fuel injection device is configured by integrating an in-cylinder pressure detecting unit with the fuel injection device. The in-cylinder pressure detecting unit includes the pressure detecting element, the amplifying circuit unit, and a connecting member connecting the pressure detecting element with the amplifying circuit unit. The in-cylinder pressure detecting unit integrated fuel injection device is mounted on the internal combustion engine.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: March 5, 2019
    Assignees: HONDA MOTOR CO., LTD., CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Shusuke Akazaki, Masanori Yomoyama, Tetsuya Aiba, Kazuo Takahashi, Takayuki Hayashi
  • Publication number: 20190056282
    Abstract: A pressure detection device includes: a piezoelectric element that detects a pressure change via a diaphragm head or the like; a circuit board that is provided with a processing circuit that performs electrical processing with respect to a charge signal outputted from the piezoelectric element; a conductive housing member, which has conductivity and is disposed to cover (house) the circuit board, and which is connected to the ground of the circuit board; and a housing (a leading end side housing, the diaphragm head and a rear end side housing), which houses the piezoelectric element, the circuit board and the housing member, and which is electrically insulated from the piezoelectric element, the circuit board and the housing member.
    Type: Application
    Filed: February 21, 2017
    Publication date: February 21, 2019
    Applicants: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Yuta KANAMORI, Masanori YOMOYAMA, Tetsuya AIBA, Ikuo TAKAHASHI, Hiroshi NAKAGAWA, Kazuo TAKAHASHI, Yusuke SATOH
  • Publication number: 20190027352
    Abstract: A sample loading plate that includes at least one sample mounting spot that mount a sample thereon is provided with a substrate having a conductive surface and an insulating film that is laminated on the conductive surface of the substrate and that has at least an insulating surface, the insulating film being sparsely formed so that the conductive surface of the substrate is partially exposed at least in the sample mounting spot. Thus, a voltage applied to the sample loading plate can effectively place the sample in an electric field. As a result of which, in a mass spectrometric analysis of the sample, there is no charge up of the sample and appropriate ionization becomes possible.
    Type: Application
    Filed: September 17, 2018
    Publication date: January 24, 2019
    Applicants: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Kazuhiro Toriumi, Mitsunori Miyamoto, Satoru Fukumoto
  • Publication number: 20190019661
    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: Application
    Filed: September 17, 2018
    Publication date: January 17, 2019
    Applicants: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Kazuhiro Toriumi, Tomoki Kuratomi
  • Publication number: 20180245237
    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: Application
    Filed: August 18, 2016
    Publication date: August 30, 2018
    Applicants: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Ikuo TAKAHASHI, Takayuki AOKI, Youichi NONOGAKI, Yoshitaka KINOSHITA
  • Patent number: 10054509
    Abstract: There is provided a pressure detection device (10) including: a pressure detection element (21) which receives pressure (P) so as to output a detection signal (Qi) corresponding to the pressure (P); and a processing circuit (30) which processes and outputs the detection signal (Qi) output from the pressure detection element (21), where on a circuit board (40) on which a conductor pattern is formed, an integrated circuit (IC1) including an analog circuit which uses a reference voltage (Vr) set to a predetermined voltage value as an operation reference and converts the detection signal (Qi) into a voltage waveform is mounted, and the processing circuit (30) includes an input circuit 50 which feeds the detection signal (Qi) to the integrated circuit (IC1) and a shield pattern (SHP1) which surrounds the region of at least a part of the input circuit (50) and to which the reference voltage (Vr) is applied.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: August 21, 2018
    Assignees: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Rikoku Nakamura, Masanori Yomoyama, Hitoshi Satsuta
  • Patent number: 9945750
    Abstract: A processing circuit is provided which includes at least an integrator circuit which uses a reference voltage set to have a predetermined magnitude as an operation reference and which integrates a detection signal so as to convert the detection signal into a voltage waveform and a base voltage adjustment circuit which is connected between an input terminal and an output terminal of the integrator circuit and which adjusts the magnitude of a base voltage that is a potential when the detection signal in an output signal output from the integrator circuit is not present.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: April 17, 2018
    Assignees: CITIZEN FINEDEVICE CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventors: Rikoku Nakamura, Masanori Yomoyama, Hitoshi Satsuta
  • 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
  • Publication number: 20180058968
    Abstract: A combustion pressure sensor mounted to a functional component attached to a combustion chamber of an internal combustion engine is provided, wherein a pressure receiving member and a pressure detection element are supported by a housing, the pressure receiving member being a pressure receiving surface for receiving a combustion pressure, the pressure detection element detecting a pressure from the pressure receiving surface, the mounting of the combustion pressure sensor to the functional component is performed by joining the functional component and a connecting member provided to at least one of the pressure receiving member and the housing, and the connecting member is composed of a joint portion and a distortion buffer portion, the joint portion being joined with the functional component, the distortion buffer portion reducing influence of distortion occurring in the joint portion on the pressure receiving member or the housing.
    Type: Application
    Filed: March 2, 2016
    Publication date: March 1, 2018
    Applicants: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Kazuo TAKAHASHI, Takashi IWASHITA