Patents Assigned to Saginomiya Seisakusho, Inc.
  • Patent number: 10837683
    Abstract: A throttling device is equipped with a valve seat in which a valve port for connecting a primary chamber and a secondary chamber is formed, a needle valve, a needle section which is inserted into the valve port, a guide section for guiding a slide shaft of the needle valve, and a coil spring for biasing the needle valve in a valve-closing direction. The guide section and the coil spring are positioned on the primary chamber side. The coil spring is covered by a stopper section. A gap between the stopper section and a main body case functions as a main body path for delivering a refrigerant from the primary chamber to the valve port.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: November 17, 2020
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Yasumasa Takada, Yuichiro Toyama, Hiroki Denda, Yoshihisa Arai, Junichi Yokota
  • Patent number: 10840827
    Abstract: A vibration energy harvester includes: a first electrode; and a second electrode that can be displaced relative to the first electrode along a predetermined vibrating direction. At least either of a surface of the first electrode and a surface of the second electrode facing opposite each other is electrically charged. Power is generated as the second electrode becomes displaced causing a change in electrostatic capacitance between the first electrode and the second electrode. A range having included therein at least a vibrational center of the second electrode, over which the electrostatic capacitance remains unchanged even as the second electrode is displaced, is set.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 17, 2020
    Assignees: The University of Tokyo, Saginomiya Seisakusho, Inc.
    Inventors: Hiroshi Toshiyoshi, Hiroyuki Fujita, Hisayuki Ashizawa, Hiroyuki Mitsuya, Kazunori Ishibashi
  • Patent number: 10833607
    Abstract: An electret element includes: an Si layer, an SiO2 layer formed at a surface of the Si layer; and an electret formed at the SiO2 layer near an interface of the SiO2 layer and the Si layer.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: November 10, 2020
    Assignees: The University of Tokyo, Saginomiya Seisakusho, Inc.
    Inventors: Hiroyuki Fujita, Gen Hashiguchi, Hisayuki Ashizawa, Hiroyuki Mitsuya, Kazunori Ishibashi
  • Patent number: 10711912
    Abstract: (Problem) The invention is to provide to a solenoid valve drive control device, in which though the magnetic path is normally composed (i.e. the plunger is attached to the attracting member), it is never determined by mistake as the dropout, and it is never entered into the reabsorption mode of the plunger. (Resolution Approach) The invention is a solenoid valve drive control device of the invention, in which by controlling of the zero cross timing generation device 72, after application of the electric current to the solenoid 66 is started at zero cross timing by the switching device 68, when the current value that flows to the solenoid 66 detected by the electric current sensing device 78 reaches the circuit protection electric current value Ic (?A), a stabilization mode that repeats the ON-OFF cycle plural times (four times of the total in the Embodiment of FIG. 4), in which application of the electric current to the solenoid 66 is interrupted by the switching means 84, is operated (see A5-A8 in FIG. 4).
    Type: Grant
    Filed: September 3, 2016
    Date of Patent: July 14, 2020
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Yuji Kanai, Ryusuke Suzuki
  • Patent number: 10566912
    Abstract: A vibration-driven energy harvester includes: a fixed electrode; a movable electrode that is disposed so as to face opposite the fixed electrode and is allowed to move relative to the fixed electrode; and an ionic liquid disposed between the fixed electrode and the movable electrode which face opposite each other, wherein: power is generated as an external vibration moves the movable electrode, causing a change in at least one of an area of an electrical double layer formed on two sides of an interface of the fixed electrode and the ionic liquid and an area of an electrical double layer formed on two sides of an interface of the movable electrode and the ionic liquid.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: February 18, 2020
    Assignees: The University of Tokyo, Saginomiya Seisakusho, Inc.
    Inventors: Hiroyuki Fujita, Hiroyuki Mitsuya
  • Patent number: 10541091
    Abstract: Provided is a contact structure for a switch, in which a contact region is increased, a conduction failure can be more precluded, and the operational reliability of the switch can be improved by allowing contact points between contacts to be line contacts. The contact structure for a switch includes a pair of contacts that are opposed to each other to open or close the switch by allowing the contacts to come into contact with or to separate from each other, wherein a contact surface of a first contact is formed into a concave shape provided with a projection and a recess; a contact surface of a second contact is formed into a rounded surface; and the projection of the first contact and the rounded surface of the second contact are configured to come into contact with each other.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: January 21, 2020
    Assignee: Saginomiya Seisakusho, Inc.
    Inventors: Satoshi Miyakawa, Tomohiro Sakakibara
  • Patent number: 10514314
    Abstract: In a sensor unit, a lower end surface of a terminal block (24) is attached to an upper end surface (12ES1) of a housing (12) by using a silicone-based adhesive in such a way as to cover an upper end surface (14ES1) of a hermetic glass (14). A covering layer (10A) made of a silicone-based adhesive is formed in a given thickness on the entire upper end surface (14ES1) of the hermetic glass (14), from which a group of input-output terminals (40ai) protrude.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: December 24, 2019
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Kazuya Takimoto, Kazunori Hirai, Hideaki Koga
  • Patent number: 10481029
    Abstract: A pressure sensor is disclosed. The pressure sensor includes a pressure sensor unit provided with a pressure detecting element configured to receive a drive voltage from a control substrate and electrically send a pressure detection signal to the control substrate so as to detect a pressure of fluid, and a plurality of electric wires connected to the pressure detecting element so as to supply the drive voltage and drawn to the outside so as to send the pressure detection signal. The pressure sensor may also include a relay substrate connected to the plurality of electric wires and having a converting circuit mounted thereon. The converting circuit converts either or both of the drive voltage supplied from the control substrate and the pressure detection signal sent to the control substrate.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: November 19, 2019
    Assignee: Saginomiya Seisakusho, Inc.
    Inventors: Tatsuya Tanaka, Kazunori Hirai
  • Patent number: 10405103
    Abstract: An electret element includes: an electret film that contains silicon oxide; and a protective film formed over the electret film and constituted of aluminum oxide deposited through an atomic layer deposition method.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: September 3, 2019
    Assignees: National University Corporation Shizuoka University, Saginomiya Seisakusho, Inc.
    Inventors: Gen Hashiguchi, Yuki Nishimori, Shinichi Arioka, Masato Suzuki, Kazunori Ishibashi
  • Patent number: 10309379
    Abstract: A vibration energy harvester includes: a pair of electrodes provided so as to face opposite each other, with at least one of the pair of electrodes allowed to move; and an ion gel provided between the pair of electrodes, which is formed by using an ionic liquid, wherein: as an external vibration causes the electrode to move along a direction in which a distance between the pair of electrodes changes, power is generated through a change in an area of an electric double layer formed on two sides of an interface of each electrode and the ion gel.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: June 4, 2019
    Assignees: The University of Tokyo, Saginomiya Seisakusho, Inc., Central Research Institute of Electric Power Industry
    Inventors: Hiroyuki Fujita, Hiroyuki Mitsuya, Shimpei Ono
  • Patent number: 10222107
    Abstract: In a throttle device, a guide section including a small-diameter hole which slidably guides a guide stem of a needle member is formed upstream side portion from a communicating hole-in a guide tube.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: March 5, 2019
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Yasumasa Takada, Junichi Yokota, Yoshihisa Arai, Yuichiro Toyama, Hiroki Denda
  • Patent number: D858329
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: September 3, 2019
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventor: Kazuya Takimoto
  • Patent number: D860017
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: September 17, 2019
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventor: Kazuya Takimoto
  • Patent number: D860840
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: September 24, 2019
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Kazuya Takimoto, Kazunori Hirai
  • Patent number: D861524
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: October 1, 2019
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Kazuya Takimoto, Kazunori Hirai
  • Patent number: D875889
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: February 18, 2020
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Masahiro Murata, Yutaka Koyama, Daiichiro Kemmotsu, Ryo Mitome, Seiichi Nakano
  • Patent number: D875890
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: February 18, 2020
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Masahiro Murata, Yutaka Koyama, Daiichiro Kemmotsu, Ryo Mitome, Seiichi Nakano
  • Patent number: D875891
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: February 18, 2020
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Masahiro Murata, Yutaka Koyama, Daiichiro Kemmotsu, Ryo Mitome, Seiichi Nakano
  • Patent number: D876589
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: February 25, 2020
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Masahiro Murata, Yutaka Koyama, Daiichiro Kemmotsu, Ryo Mitome, Seiichi Nakano
  • Patent number: D877862
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: March 10, 2020
    Assignee: SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Masahiro Murata, Yutaka Koyama, Daiichiro Kemmotsu, Ryo Mitome, Seiichi Nakano