Patents Assigned to Citizen Watch Co., Ltd.
  • Publication number: 20210132918
    Abstract: A computer program production system, a computer program, and a production terminal instrument each cause a computer to execute service block selection processing of selecting a service block program from among selection candidate service block programs, trigger block selection processing of selecting a trigger block program from among selection candidate trigger block programs, action block selection processing of selecting an action block program from among selection candidate action block programs, and production processing of producing an application program by combining the selected block programs.
    Type: Application
    Filed: May 14, 2019
    Publication date: May 6, 2021
    Applicant: CITIZEN WATCH CO., LTD.
    Inventors: Daisuke MATSUOH, Ryutaro UEMURA
  • Publication number: 20210129262
    Abstract: Disclosed is a friction welding method including: a heating step wherein, in relation to joining surfaces (S1, S2) defined by opposite end surfaces of a pair of materials (W1, W2), the pair of materials (W1, W2) are moved from a state in which their axes are unaligned with each other, in a direction for aligning the respective axes with each other, to a prescribed position where the joining surfaces (S1, S2) are brought into contact with each other and friction heated; and a pressure contacting step wherein the pair of materials are brought into pressure contact with each other. The method is characterized in that the heating step and the pressure contacting step are carried out while rotating each of the materials (W1, W2) at the same rotation speed in the same direction, as seen from one side in the axial direction.
    Type: Application
    Filed: October 31, 2018
    Publication date: May 6, 2021
    Applicants: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.
    Inventor: Takaichi NAKAYA
  • Patent number: 10996127
    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: Grant
    Filed: February 21, 2017
    Date of Patent: May 4, 2021
    Assignees: 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: 20210086320
    Abstract: A machine tool (1) includes a spindle (32) supported on a support surface (37a) of a support body (37) with such an orientation that the longitudinal axis of the spindle extends along the support surface (37a). The spindle (32) is movable in a vertical direction that is perpendicular to the longitudinal axis of the spindle (32). The support body (37) is provided with a ventilation hole (80) extending through the support body (37) between the support surface (37a) and a surface (37b) facing in the direction opposite to the support surface (37a), to open toward the spindle (32).
    Type: Application
    Filed: October 3, 2018
    Publication date: March 25, 2021
    Applicants: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.
    Inventors: Koichi YABE, Yosuke ANDO, Yosuke WADA, Wataru KATAGISHI
  • Patent number: 10946450
    Abstract: An automatic lathe includes a positioning block that positions a rod material, the rod material projecting from a main spindle contacting the positioning block, and a sensor that moves in a direction intersecting with a shaft center C direction of the main spindle to detect a cut off condition of the rod material. The positioning block includes a groove that allows movement of the sensor, and moves in the same direction as a movement direction of the sensor between a position that contacts the rod material and a position that has no contact with the rod material. The sensor moves along the path in the position that has no contact with the rod material.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: March 16, 2021
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.
    Inventor: Tomonori Maehara
  • Patent number: 10937607
    Abstract: An electronic switch includes a rubber sheet that includes a first surface, a second surface opposite to the first surface, and a convex portion on the first surface. The convex portion of the rubber sheet includes a semispherical shape.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: March 2, 2021
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: Takahiro Arai
  • Publication number: 20210041835
    Abstract: A variation reduction mechanism of a stop position of a pointer includes a return gear that is driven in conjunction with a time display mechanism, a slip torque spring (friction member) that contacts the return gear to apply a friction force to the return gear to be driven, and a return spring (return spring member) that applies, to the slip torque spring, a torque of the return gear in a direction (dashed line arrow—R direction) opposite to a normal hand movement direction (arrow R direction).
    Type: Application
    Filed: October 24, 2018
    Publication date: February 11, 2021
    Applicant: Citizen Watch Co., Ltd.
    Inventors: Kazuya IMAMURA, Shoichiro MORITA
  • Patent number: 10916389
    Abstract: A push switch which can have a small separation distance from a side surface of a mounting board, when it is mounted on the mounting board through a step, is disclosed. The push switch includes a substrate having a first surface on which a first fixed contact point and a second fixed contact point surrounding the first fixed contact point are formed, a second surface located opposite to the first surface, a third surface extending from the second surface to a corner in a direction perpendicular to the first surface, and a fourth surface extending from the corner parallel to the first surface, and a conductive movable contact point having a peripheral edge is in contact with the second fixed contact point, and a center contacted by the first fixed contact point when the movable contact point is pressed, and the corner includes a groove recessed with respect to at least one of the third surface and the fourth surface.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: February 9, 2021
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventor: Toyohiko Amano
  • Patent number: D911297
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: February 23, 2021
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Masahiro Watanabe, Shingo Kuriki, Kazuki Matsumura
  • Patent number: D912543
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 9, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Ray Chau Hon Ming, Benjamin Cheng Chin Hoi
  • Patent number: D912547
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 9, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Toshihiko Kita
  • Patent number: D912548
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 9, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Takayuki Takahashi
  • Patent number: D912557
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: March 9, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Shoya Kaneko
  • Patent number: D912559
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 9, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Mak Kim Tak, Benjamin Cheng Chin Hoi
  • Patent number: D912561
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: March 9, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Akihiko Kuroda
  • Patent number: D913119
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 16, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Rido Sasaki
  • Patent number: D913120
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 16, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Marie Yoshida
  • Patent number: D913122
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: March 16, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Ryuji Tonohori
  • Patent number: D913123
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: March 16, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Naoaki Okamura, Izumi Kubo
  • Patent number: D917307
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: April 27, 2021
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Akihiko Kuroda