Patents by Inventor Keita Saitou

Keita Saitou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11029269
    Abstract: A support device comprises a piston rod and a fixed member arranged so that a target object is placed therebetween, and an elastic member is provided to the target object side of the fixed member. A monitoring device includes a heat flux sensor and a detection part. When the target object is supported between the piston rod and the fixed member due to force applied by the piston rod, the heat flux sensor outputs a signal corresponding to the heat flux flowing between the elastic member, which is compressed by the load applied from the piston rod, and the fixed member. Based on the signal output by the heat flux sensor, the detection part detects the support state of the target object supported by the support device, or the size of the target object.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: June 8, 2021
    Assignee: DENSO CORPORATION
    Inventors: Toshikazu Harada, Atusi Sakaida, Toshihisa Taniguchi, Norio Gouko, Keiji Okamoto, Keita Saitou
  • Patent number: 10920803
    Abstract: An air cylinder includes a tubular cylinder and a piston which is moved by pressure of a fluid supplied to a chamber provided inside the cylinder. A monitoring device includes a heat flux sensor and a detection part. The heat flux sensor is provided to the cylinder and detects heat flux that flows between inside and outside of the cylinder due to compression or expansion of the fluid in the chamber caused in accordance with the movement of the piston. The detection part detects the moving state of the piston based on the output signal of the heat flux sensor.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: February 16, 2021
    Assignee: DENSO CORPORATION
    Inventors: Toshikazu Harada, Atusi Sakaida, Toshihisa Taniguchi, Norio Gouko, Keiji Okamoto, Keita Saitou
  • Publication number: 20200325919
    Abstract: An air cylinder includes a tubular cylinder and a piston which is moved by pressure of a fluid supplied to a chamber provided inside the cylinder. A monitoring device includes a heat flux sensor and a detection part. The heat flux sensor is provided to the cylinder and detects heat flux that flows between inside and outside of the cylinder due to compression or expansion of the fluid in the chamber caused in accordance with the movement of the piston. The detection part detects the moving state of the piston based on the output signal of the heat flux sensor.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 15, 2020
    Applicants: DENSO CORPORATION, DENSO CORPORATION
    Inventors: Toshikazu HARADA, Atusi SAKAIDA, Toshihisa TANIGUCHI, Norio GOUKO, Keiji OKAMOTO, Keita SAITOU
  • Publication number: 20190359032
    Abstract: A radiant heater device has an electrode embedded in a substrate part and a plurality of heating parts. The electrodes are formed by material that has low specific resistance. An area occupied by the electrode is restricted. The heating parts are formed by material having high specific resistance in order to generate heat so that radiation is produced. The electrode and the heating part are electrically connected within the substrate part. The plurality of heating parts are arranged in parallel between a pair of electrodes. The electrodes and the heating parts are formed in a film-like shape, and the thermal capacity is reduced. As a result, a temperature of the heating parts rises promptly in response to a turning on of power. In addition, the temperature of the heating parts promptly decreases when an object comes into contact therewith.
    Type: Application
    Filed: August 12, 2019
    Publication date: November 28, 2019
    Inventors: Yasuhiro SAGOU, Takuya KATAOKA, Asami OKAMOTO, Manabu MAEDA, Koji OTA, Masayuki AOYAMA, Kouji KONDOH, Motoki SHIMIZU, Yoshihiko SHIRAISHI, Yoshitarou YAZAKI, Keita SAITOU
  • Patent number: 10481008
    Abstract: In a radiant heat sensor, first and second thermoelectric members are alternately arrayed one by one in a direction along a first surface of a plate-shaped member so as to be separated from each other, and each of the first and second thermoelectric members configure a portion of the first surface. First conductor patterns extend the first surface, disposed on the first surface so as to span a single first thermoelectric member and a single second thermoelectric member that are adjacent to each other, and configure hot contact portions between the first and second thermoelectric members. Second conductor patterns extend along the first surface, disposed on the first surface so as to span a single first thermoelectric member and a single second thermoelectric member that are adjacent to each other, and configure cold contact portions between the first and second thermoelectric members.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: November 19, 2019
    Assignee: DENSO CORPORATION
    Inventors: Keita Saitou, Atusi Sakaida, Toshikazu Harada, Hirohito Matsui, Yukikatsu Ozaki
  • Patent number: 10377022
    Abstract: A power tool which has an anvil 20 that is rotated by a hammer 22 and is housed in a housing, and rotates an output shaft 18 is provided. The anvil 20 and the output shaft 18 are integrally formed into one unit, and a carrier 33 that is rotatable relative to the anvil 20 by a predetermined angle on the same axis is provided. On one portion of an outer circumferential surface of the anvil 20, a relief surface 20a is formed. Cut-out portions 33b are formed at positions opposed to each other of a carrier 33, and by allowing an engaging pin 37 to be interposed therein, a locking mechanism that limits the relative rotation between the anvil 20 and a lock ring 38 is prepared. When the tool main body is manually rotated while the hammer 22 is being stopped, the engaging pin 37 limits the relative rotation between the anvil 20 and the lock ring 38. The locked state between the anvil 20 and the lock ring 38 is released immediately when the rotation of the motor 4 is started.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: August 13, 2019
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Keita Saitou, Shinichirou Satou, Tomomasa Nishikawa, Masanori Watanabe, Takuya Teranishi
  • Publication number: 20190162684
    Abstract: A support device comprises a piston rod and a fixed member arranged so that a target object is placed therebetween, and an elastic member is provided to the target object side of the fixed member. A monitoring device includes a heat flux sensor and a detection part. When the target object is supported between the piston rod and the fixed member due to force applied by the piston rod, the heat flux sensor outputs a signal corresponding to the heat flux flowing between the elastic member, which is compressed by the load applied from the piston rod, and the fixed member. Based on the signal output by the heat flux sensor, the detection part detects the support state of the target object supported by the support device, or the size of the target object.
    Type: Application
    Filed: April 7, 2017
    Publication date: May 30, 2019
    Inventors: Toshikazu HARADA, Atusi SAKAIDA, Toshihisa TANIGUCHI, Norio GOUKO, Keiji OKAMOTO, Keita SAITOU
  • Publication number: 20190154517
    Abstract: A heat flux meter includes a heat flux sensor and a radiation unit. The heat flux sensor has a first surface and a second surface on the opposite side to the first surface. The heat flux sensor is configured to output a sensor signal corresponding to a temperature difference between the first surface side and the second surface side. A radiation unit is configured to release heat from a heat generation source of a target to an external space. The heat flux sensor is arranged on a heat transfer path between the heat generation source and the radiation unit. The heat flux sensor is arranged such that the first surface side thereof is on the heat generation source side of the heat transfer path. The heat flux sensor is arranged such that the second surface side thereof is on the radiation unit side of the heat transfer path.
    Type: Application
    Filed: April 7, 2017
    Publication date: May 23, 2019
    Inventors: Toshikazu HARADA, Atusi SAKAIDA, Toshihisa TANIGUCHI, Norio GOUKO, Keiji OKAMOTO, Keita SAITOU
  • Patent number: 10220812
    Abstract: A heat flux sensor is installed in such a way that heat flux emanating from a biological object present at a predetermined position is detectable. It is determined whether or not a biological object is present at the predetermined position by comparing sensing results of the heat flux sensor with determination criteria. The determination criteria is preset according to heat flux that can be sensed when a biological object is present at the predetermined position. When the sensing results of the heat flux sensor satisfy the determination criteria, in other words, when the heat flux sensed by the heat flux sensor is the heat flux emanating from a biological object, it is determined that a biological object is present at the predetermined position. Consequently, it is possible to realize accurate detection of a biological object.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: March 5, 2019
    Assignee: DENSO CORPORATION
    Inventors: Keita Saitou, Yoshihiko Shiraishi, Yoshitaro Yazaki, Yasuhiro Tanaka, Eijirou Miyagawa, Motoki Shimizu, Toshikazu Harada, Atusi Sakaida, Toshihisa Taniguchi, Norio Gouko
  • Patent number: 10128681
    Abstract: A non-contact power supply control system includes: an electric transmission pad connected to a power source unit; a control unit controlling current supply to the electric transmission pad; a living body detecting means detecting a living body present around the electric transmission pad; a power receiving pad magnetically coupled to the electric transmission pad to excite power, when current is supplied from the power source unit to the electric transmission pad; and a power storage unit storing power excited by the power receiving pad. The living body detecting means are arranged on the road surface side, and the control unit, when determining that no living body is present around the electric transmission pad on the basis of a result from the living body detecting means, controls the power supply unit to supply power to the power storage unit.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: November 13, 2018
    Assignee: DENSO CORPORATION
    Inventors: Yasuhiro Tanaka, Atusi Sakaida, Toshihisa Taniguchi, Norio Gouko, Yoshitaro Yazaki, Yoshihiko Shiraishi, Toshikazu Harada, Keita Saitou
  • Publication number: 20180313725
    Abstract: An abnormality diagnostic apparatus includes: a heat flux sensor that detects heat flux generated by a measurement target continuously from the start of operation of the measurement target or at predetermined time intervals; and a control device that determines whether there is an abnormality based on the result of the detection by the heat flux sensor. In the event of an abnormality in a facility, heat flux generated from the facility by at least one of current, voltage, sound, vibration, and friction changes. Therefore, the use of the heat flux sensor makes it possible to determine the presence or absence of an abnormality in the measurement target without using a plurality of kinds of sensors to measure current, voltage, sound, vibration, and friction.
    Type: Application
    Filed: September 16, 2016
    Publication date: November 1, 2018
    Inventors: Toshikazu HARADA, Atusi SAKAIDA, Toshihisa TANIGUCHI, Norio GOUKO, Yoshihiko SHIRAISHI, Yasuhiro TANAKA, Keita SAITOU, Hirohito MATSUI
  • Patent number: 10113898
    Abstract: A liquid level detector includes: a detecting element having one surface and the other surface opposite to the one surface, the one surface being opposed to a liquid, while being parallel to a height direction of liquid level; a Peltier element provided on the other surface side of the detecting element; and a control unit performing a detection processing for a liquid level of the liquid. The Peltier element forms a heat flow passing through the detecting element from the other surface to the one surface, toward the liquid or a gas. The control unit calculates a liquid level on the basis of an output value of an electrical signal outputted according to the heat flow passing through the detecting element, and a relationship between an output value of the detecting element and a liquid level.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: October 30, 2018
    Assignee: DENSO CORPORATION
    Inventors: Toshikazu Harada, Atusi Sakaida, Toshihisa Taniguchi, Norio Gouko, Yoshitaro Yazaki, Yoshihiko Shiraishi, Yasuhiro Tanaka, Keita Saitou
  • Publication number: 20180306611
    Abstract: A composite sensor includes a first sensor configured to detect a first physical quantity; a second sensor as a sensor of a different type from the first sensor, the second sensor being configured to detect a second physical quantity identical to or correlating with the first physical quantity; and an internal control unit configured to perform failure diagnosis for at least one of the first sensor or the second sensor by comparison between a detection result of the first sensor and a detection result of the second sensor.
    Type: Application
    Filed: October 13, 2016
    Publication date: October 25, 2018
    Inventors: Keita SAITOU, Yoshitaro YAZAKI, Motoki SHIMIZU, Toshikazu HARADA, Atusi SAKAIDA, Toshihisa TANIGUCHI, Norio GOUKO, Hirohito MATSUI
  • Patent number: 10053052
    Abstract: A heat flux sensor is installed in such a way that heat flux emanating from a biological object present at a predetermined position is detectable. It is determined whether or not a biological object is present at the predetermined position by comparing sensing results of the heat flux sensor with determination criteria. The determination criteria is preset according to heat flux that can be sensed when a biological object is present at the predetermined position. When the sensing results of the heat flux sensor satisfy the determination criteria, in other words, when the heat flux sensed by the heat flux sensor is the heat flux emanating from a biological object, it is determined that a biological object is present at the predetermined position. Consequently, it is possible to realize accurate detection of a biological object.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: August 21, 2018
    Assignee: DENSO CORPORATION
    Inventors: Keita Saitou, Yoshihiko Shiraishi, Yoshitaro Yazaki, Yasuhiro Tanaka, Eijirou Miyagawa, Motoki Shimizu, Toshikazu Harada, Atusi Sakaida, Toshihisa Taniguchi, Norio Gouko
  • Publication number: 20180231420
    Abstract: In a radiant heat sensor, first and second thermoelectric members are alternately arrayed one by one in a direction along a first surface of a plate-shaped member so as to be separated from each other, and each of the first and second thermoelectric members configure a portion of the first surface. First conductor patterns extend the first surface, disposed on the first surface so as to span a single first thermoelectric member and a single second thermoelectric member that are adjacent to each other, and configure hot contact portions between the first and second thermoelectric members. Second conductor patterns extend along the first surface, disposed on the first surface so as to span a single first thermoelectric member and a single second thermoelectric member that are adjacent to each other, and configure cold contact portions between the first and second thermoelectric members.
    Type: Application
    Filed: July 5, 2016
    Publication date: August 16, 2018
    Inventors: Keita SAITOU, Atusi SAKAIDA, Toshikazu HARADA, Hirohito MATSUI, Yukikatsu OZAKI
  • Publication number: 20180193996
    Abstract: In order to provide a working machine capable of suppressing an increase in size, a working machine that rotates a working tool with motive power of a motor includes a transmission mechanism that transmits a rotational force of the motor to the working tool, a front case in which the transmission mechanism is disposed, a holding tool that is attached to the front case so as to protrude from an outer surface of the case and is gripped by a worker, and an attaching hole which is provided in the front case and to which the holding tool is attached, and the attaching hole penetrates the front case in plan view intersecting with an axis that is a rotation center of the working tool.
    Type: Application
    Filed: June 2, 2016
    Publication date: July 12, 2018
    Inventors: Shota HIRANO, Hiroyuki HANAWA, Keita SAITOU, Naoki SATO
  • Patent number: 9923250
    Abstract: A heat quantity control device has a heat flux sensor arranged between first and second heating elements arranged adjacently to each other, and a control section for controlling a heat quantity of the first and second heating elements. The heat flux sensor has an insulation board made of thermoplastic resin, first and second via holes formed in the insulation board penetrating in a thickness direction thereof. First and second layer connection members are embedded in the first and second via holes, respectively. The first and second layer connection members are made of different metals and alternately connected in series. The control section controls a heat quantity generated in the first and second heating elements based on the electromotive force generated in the heat flux sensors so that a heat flux flowing between the first and second heating elements becomes not more than a predetermined value.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: March 20, 2018
    Assignee: DENSO CORPORATION
    Inventors: Yoshihiko Shiraishi, Atusi Sakaida, Toshihisa Taniguchi, Norio Gouko, Yoshitaro Yazaki, Motoki Shimizu, Eijirou Miyagawa, Yasuhiro Tanaka, Toshikazu Harada, Keita Saitou
  • Publication number: 20170320463
    Abstract: A heat flux sensor is installed in such a way that heat flux emanating from a biological object present at a predetermined position is detectable. It is determined whether or not a biological object is present at the predetermined position by comparing sensing results of the heat flux sensor with determination criteria. The determination criteria is preset according to heat flux that can be sensed when a biological object is present at the predetermined position. When the sensing results of the heat flux sensor satisfy the determination criteria, in other words, when the heat flux sensed by the heat flux sensor is the heat flux emanating from a biological object, it is determined that a biological object is present at the predetermined position. Consequently, it is possible to realize accurate detection of a biological object.
    Type: Application
    Filed: July 24, 2017
    Publication date: November 9, 2017
    Inventors: Keita SAITOU, Yoshihiko SHIRAISHI, Yoshitaro YAZAKI, Yasuhiro TANAKA, Eijirou MIYAGAWA, Motoki SHIMIZU, Toshikazu HARADA, Atusi SAKAIDA, Toshihisa TANIGUCHI, Norio GOUKO
  • Patent number: 9659416
    Abstract: There is provided a heat flux sensor with first and second interlayer connection members composed of different metals from each other of which metal atoms maintain a predetermined crystal structure embedded in first and second via holes of a thermoplastic resin made insulating substrate, the first and the second interlayer connection members are connected in series alternately, and a control unit that performs abnormality determination of a heating element disposed in a vehicle. The heat flux sensor is provided to the heating element and outputs a sensor signal corresponding to heat flux between the heating element and an outside air, and the control unit determines based on the sensor signal that there is abnormality in the heating element when the heat flux between the heating element and the outside air is out of a predetermined range.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: May 23, 2017
    Assignee: DENSO CORPORATION
    Inventors: Yasuhiro Tanaka, Atusi Sakaida, Toshihisa Taniguchi, Norio Gouko, Yoshitaro Yazaki, Yoshihiko Shiraishi, Toshikazu Harada, Motoki Shimizu, Keita Saitou
  • Patent number: D785427
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: May 2, 2017
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Shingo Kosugi, Masanori Okada, Keita Saitou