Patents Assigned to Pacific Industrial Co., Ltd.
  • Patent number: 10583698
    Abstract: When receiving a transmission signal, a reception controller obtains a pulse count value of each of rotation sensor units. Next, the reception controller compares, with a threshold, the difference between the obtained pulse count value and a previously obtained pulse count value. The reception controller identifies, based on the result of comparison between the difference between pulse count values and the threshold, the positions of wheel assemblies, in each of which a transmitter is provided.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: March 10, 2020
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventor: Yasuhisa Tsujita
  • Patent number: 10556471
    Abstract: A tire condition detecting device includes a controlling section that determines whether there is an anomaly in the tire based on the condition of the tire detected by the condition detecting section. A protocol that is designated by a trigger device is defined as a first protocol, and protocols that are not designated by the trigger device are defined as second protocols. When determining that there is no anomaly in the tire, the controlling section causes the transmission section to transmit only the data signals using the first protocol. When determining that there is an anomaly in the tire, the controlling section causes the transmission section to transmit the data signals using the second protocols in addition to the data signals using the first protocol.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: February 11, 2020
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Yasuhisa Tsujita, Takashi Takeyama
  • Patent number: 10525779
    Abstract: Each of transmitters attached to respective wheel assemblies transmits transmission data when the wheel assembly reaches any of specific angles set at equal angular intervals. A receiver mounted in the vehicle obtains the rotation angles of the wheel assemblies from a rotation angle detecting section upon reception of the transmission data and obtains specific rotation angles by correcting the obtained rotation angles by using the value of the angle difference between the specific angles. The specific rotation angles are values that can be regarded as rotation angles that are obtained upon reception of the transmission data transmitted at the same specific angle. The receiver identifies the correspondence between ID codes included in the transmission data and the wheel assemblies by using the specific rotation angles.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: January 7, 2020
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventor: Yasuhisa Tsujita
  • Patent number: 10479148
    Abstract: A reception control section obtains a rotation angle of each wheel assembly when a reception circuit receives transmission data. The reception control section calculates the absolute value of the difference between the obtained rotation angle and a previously obtained rotation angle. The reception control section determines whether the absolute value of the difference is included in a reference range or a specific range. The reference range includes 0. The specific range includes the angle difference between specific angles.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: November 19, 2019
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Yasuhisa Tsujita, Keiyu Fujii
  • Patent number: 10464380
    Abstract: The tire state detecting device includes a calculating unit that calculates an acceleration difference of the gravitational acceleration value acquired at a first acquiring angle and the gravitational acceleration value acquired at a second acquiring angle; a storage unit that stores a correction formula defined in advance based on an angular difference between the adjacent acquiring angles and an angular difference of the first acquiring angle and the second acquiring angle, and corrects the first acquiring angle to an angle determined in advance from the acceleration difference; a transmission unit that transmits a transmission signal including information indicating the angle determined in advance in addition to information indicating the state of the tire; and a control unit that causes the transmission signal to be transmitted to a wheel position specifying device.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: November 5, 2019
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventor: Takao Araya
  • Patent number: 10428968
    Abstract: A valve core capable of suppressing manufacturing costs, including: a first core cylinder body, a second core cylinder body having a valve opening on an opposite side to the first, a movable member having a valve body which opens and closes the valve opening at the front end of a shaft section linearly movably extending through the insides of the core cylinder bodies, an elastic member in contact with the movable member and the first body and biasing to sandwich the second body between the first and valve body, and a pair of fitting sections including a first and a second fitting section on the core cylinder bodies and which are rotatably fitted and are separable from each other without interfering. The fitting sections have cylindrical shapes that are detachably fitted to each other, and the first section has a stepped surface with which the second section is in contact.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: October 1, 2019
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Masahiko Yamamoto, Masatoshi Aimoto
  • Patent number: 10432329
    Abstract: A transmitter includes a transmitter control section, which generates transmission data to be transmitted to a receiver. The transmission data contains variable data and verification data. The verification data is data for causing a verifying section of the receiver to verify an ID code registered in the transmitter against an ID code registered in the receiver. The transmitter control section is capable of switching between a first state and a second state. The first state is a state in which fixed data representing identification information is transmitted as the verification data. The second state is a state in which computation data computed from the variable data and the fixed data is transmitted as the verification data.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: October 1, 2019
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventor: Yasuhisa Tsujita
  • Publication number: 20190250645
    Abstract: An object is to provide a more compact motor-operated valve than conventional ones. The motor-operated valve according to the present disclosure includes a first housing chamber housing a first valve body, a second housing chamber housing a second valve body, and an intermediate chamber interposed therebetween, which are arranged in a line. A shaft is placed to connect the first valve body and the second valve body. The first valve body is fitted into a first fitting portion in the first housing chamber so as to be linearly movable. The second valve body is fitted into a second fitting portion in the second housing chamber so as to be linearly movable. An inside of the first fitting portion and an inside of the second fitting portion communicate with an inside of the intermediate chamber through an air passage provided in the shaft.
    Type: Application
    Filed: November 28, 2018
    Publication date: August 15, 2019
    Applicant: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Kazuhiro KANAMORI, Terumasa MITSU, Takayuki SAKAI
  • Patent number: 10316978
    Abstract: A tire valve unit includes a tire valve and a sensor unit. The tire valve includes a valve stem and a rubber body located on the periphery of the valve stem. The sensor unit includes a sensor mounted on a wheel and a housing that accommodates the sensor and is secured to the tire valve. The tire valve unit is mounted on the wheel by press-fitting the tire valve into a mounting hole in the wheel. The body includes an attaching portion. The tire valve includes an attaching projection that projects in the axial direction of the tire valve from the inside of the attaching portion toward the outside. The tire valve unit further includes a fixture that secures the attaching projection to the housing.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: June 11, 2019
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventor: Hirotake Mori
  • Patent number: 10267434
    Abstract: A motor-operated valve includes a motor, a linear-motion shaft which receives power of the motor and is linearly moved and which includes a valve member that opens and closes a valve port formed at an end of a valve body, and an elastic member which is provided in the valve body and which contacts with an outer circumferential surface of the linear-motion shaft and regulates the lateral movement of the linear-motion shaft.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: April 23, 2019
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Terumasa Mitsu, Osamu Takami
  • Patent number: 10253903
    Abstract: A motor-operated valve includes a base portion which is provided at one end of a stator, a linear-motion shaft which is screwed into a rotor and which is supported by the base portion such that the linear-motion shaft can be moved linearly and cannot be rotated, and a valve member which is provided in the linear-motion shaft and which opens and closes the valve port. A first contacting portion on the rotor and a second contacting portion on the stator or an intermediate member disposed between the rotor and the stator, the first and the second contacting portions and being provided in each of the intermediate member or the stator and the rotor, and contacting with each other in the rotation axis direction of the rotor are biased by a rotor biasing means such that they are pressed onto each other.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: April 9, 2019
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Satoshi Fujimoto, Terumasa Mitsu
  • Patent number: 10180192
    Abstract: Provide is a relief valve in which the flexibility of an attaching position is higher than a conventional relief valve. In the relief valve of the present invention, a discharge hole for discharging a fluid is arranged on a side surface of a cylindrical portion which protrudes from an end surface of a head portion in a bolt-type valve body. A direction change member which changes a direction in which the discharge hole is open to an arbitrary direction is provided. In this way, the relief valve is attached to a fluid device, and then with the direction change member, it is possible to direct the fluid discharge direction to a desired direction, and accordingly, the flexibility of the attaching position of the relief valve is enhanced as compared with the conventional relief valve.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: January 15, 2019
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventor: Keisuke Kojima
  • Patent number: 10166822
    Abstract: Each of a plurality of tire air pressure detectors includes an information retention portion that retains one or more pieces of timing information indicating the time at which the tire air pressure detector has rotated to a specific detector angle in a first time band for withholding transmission of a radio wave signal, and a radio wave transmission control portion that transmits one or more of the pieces of timing information retained in the information retention portion to a receiver in a second time band enabling transmission of the radio wave signal. The receiver includes an axle rotation amount reader portion that receives axle rotation amount information generated in each of a plurality of axle rotation detection portions, and a position determination portion that calculates an axle rotation amount at the point in time at which the tire air pressure detectors have rotated to the specific detector angle.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: January 1, 2019
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Masanori Kosugi, Takao Araya, Koji Okumura
  • Patent number: 10160270
    Abstract: A vehicle is mounted with a pulse detecting unit that detects rotation of a wheel as pulses, a wheel rotation number storage unit that stores the number of pulses in correspondence with time, and a wheel position specifying device that specifies on which of the plurality of wheels the tire state detecting device arranged on each wheel is arranged. The wheel position specifying device includes a reception unit that receives a transmission signal, including a time required for the wheel to make a predetermined number of rotations, transmitted from each tire state detecting device, and a specifying unit that specifies the wheel on which each tire state detecting device is arranged from a difference of the number of pulses counted during the time included in the transmission signal and the number of pulses while the wheel makes the predetermined number of rotations.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: December 25, 2018
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventor: Takao Araya
  • Publication number: 20180361801
    Abstract: A tire condition detection device includes a condition detecting section, a control section, a transmitting section, a receiving section, and battery, which is a power source for the tire condition detection device. When the receiving section continually receives information from an external device, a controller switches the state of the tire condition detection device from a responsive state to a non-responsive state. In the responsive state, the receiving section is maintained in a standby state, in which the receiving section is capable of receiving the information wirelessly transmitted from the external device, and a reception response is performed when the information is received. In the non-responsive state, the reception response by the receiving section is not performed regardless whether the receiving section is maintained in the standby state.
    Type: Application
    Filed: April 27, 2016
    Publication date: December 20, 2018
    Applicant: Pacific Industrial Co., Ltd.
    Inventors: Koji OKUMURA, Keiyu FUJII
  • Publication number: 20180339561
    Abstract: A tire state monitoring device that is able to stabilize fixing of a sensor unit is provided. A tire state monitoring device includes a tire valve mounted on a tire wheel, a cylindrical nut screwed onto the valve stem of the tire valve, and a sensor unit that detects a tire state and transmits a detection result to an external part. A nut insertion hole, into which the cylindrical nut is inserted, is formed in the sensor unit. An elastic ring member is fitted on the outer peripheral surface of the cylindrical nut and elastically deforms in the radial direction of the cylindrical nut while the cylindrical nut is kept inserted in the nut insertion hole. The sensor unit is held by the cylindrical nut by a resilient force of the elastic ring member.
    Type: Application
    Filed: June 23, 2016
    Publication date: November 29, 2018
    Applicant: PACIFIC INDUSTRIAL CO., LTD.
    Inventor: Takumi SUGINO
  • Patent number: 10124632
    Abstract: A tire condition detecting apparatus includes a condition detecting section, a transmission section, and a transmission-side control section. The transmission section is configured to transmit a signal that contains information related to the condition of the tire to a receiver, which includes a reception-side control section. The reception-side control section identifies the position of the wheel assembly in which the tire condition detecting apparatus is provided based on the received signal strength indication (RSSI) of the signal. The transmission-side control section is configured to cause a position detecting signal and an instruction signal to be transmitted from the transmission section to the receiver. The position detecting signal is configured to cause the reception-side control section to identify the position of the tire condition detecting apparatus.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: November 13, 2018
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventor: Yasuhisa Tsujita
  • Publication number: 20180313240
    Abstract: In an oil pan, an outer surface of an oil pan body is covered with urethane foam material. The outer surface of the oil pan body is cation treated to be a surface-treated layer, and the urethane foam material is adhered to the outer surface of the oil pan body by the surface-treated layer without any gaps therebetween. The oil pan further includes an undulating portion formed on the outer surface of the oil pan body and undulating in an inward and outward direction. The surface-treated layer is formed on the undulating portion and the urethane foam material is adhered to the undulating portion without any gaps therebetween. The undulating portion includes a bowl-shaped recess recessed into a bowl shape toward an inner side of the oil pan body and the urethane foam material is adhered to an entire inner surface of the bowl-shaped recess without any gaps therebetween.
    Type: Application
    Filed: November 6, 2015
    Publication date: November 1, 2018
    Applicant: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Hiroyuki SATO, Tomonari INOUE, Takahiro SHIMIZU
  • Patent number: 10086661
    Abstract: A tire condition detecting apparatus includes a transmitting section, a receiving section, a control section, a property detecting section, and a battery, which is a power source for the apparatus. The control section operates in a control mode that is selected from a normal mode and a power saving mode. In the power saving mode, power consumption associated with reception of the wirelessly transmitted signal from the external device is less than that in the normal mode. When the amount of change in the electrical property of a valve stem detected by the property detecting section exceeds a reference change amount, the control section switches the control mode to the normal mode.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: October 2, 2018
    Assignee: PACIFIC INDUSTRIAL CO., LTD.
    Inventor: Yasuhisa Tsujita
  • Publication number: 20180274690
    Abstract: A valve core capable of suppressing manufacturing costs, including: a first core cylinder body, a second core cylinder body having a valve opening on an opposite side to the first, a movable member having a valve body which opens and closes the valve opening at the front end of a shaft section linearly movably extending through the insides of the core cylinder bodies, an elastic member in contact with the movable member and the first body and biasing to sandwich the second body between the first and valve body, and a pair of fitting sections including a first and a second fitting section on the core cylinder bodies and which are rotatably fitted and are separable from each other without interfering. The fitting sections have cylindrical shapes that are detachably fitted to each other, and the first section has a stepped surface with which the second section is in contact.
    Type: Application
    Filed: March 22, 2016
    Publication date: September 27, 2018
    Applicant: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Masahiko YAMAMOTO, Masatoshi AIMOTO