Patents by Inventor Takashi Takeyama

Takashi Takeyama 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: 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
  • Publication number: 20190329604
    Abstract: A transmitter includes a condition detecting section, which detects a condition of a tire, a memory section, which stores identification information, a transmitting section, which transmits a data signal, a trigger receiving section, which receives a trigger signal transmitted from a trigger device, and a controlling section. When the trigger receiving section receives the trigger signal, the controlling section generates data corresponding to the trigger signal and causes the transmitting section to transmit the data signal, which includes the generated data. The controlling section generates encrypted data when the trigger receiving section receives a trigger signal of unmodulated waves. The controlling section generates non-encrypted data that includes the identification information when the trigger receiving section receives a trigger signal of modulated waves.
    Type: Application
    Filed: October 30, 2017
    Publication date: October 31, 2019
    Inventors: Takashi TAKEYAMA, Yasuhisa TSUJITA
  • Patent number: 10422264
    Abstract: A work machine provided with an exhaust gas purifying device includes a selective catalytic reducing device that performs treatment on exhaust gas of an engine, and a reducing agent injection device that injects a reducing agent into exhaust gas to be supplied to the selective catalytic reducing device. The work machine is provided with a housing that delimits an engine room accommodating the engine and the exhaust gas purifying device. The housing includes a top board that covers the engine room above the engine, and an exhaust duct that is provided in the top board and discharges the air in the engine room to the outside of the engine room. A part of a reducing agent supply pipe for guiding the reducing agent to the reducing agent injection device is disposed in the exhaust duct in a position above the reducing agent injection device.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: September 24, 2019
    Assignee: KCM Corporation
    Inventors: Yoshihiro Itou, Hiroyuki Kizaki, Takashi Takeyama
  • Publication number: 20190275848
    Abstract: A transmitter is mounted on each of a plurality of wheel assemblies included in a vehicle. The transmitter executes a process in accordance with a command included in a trigger signal. The transmitter includes a pressure sensor that detects the tire pressure, a transmission unit that transmits a data signal including a detection result of the pressure sensor to a receiver, a trigger reception unit that receives the trigger signal, and a controller that controls the transmitter. When the trigger reception unit receives the trigger signal including a command shifting a state of the transmitter to a standby state, the controller shifts the state of the transmitter to the standby state. Further, when the trigger reception unit receives the trigger signal including a command designating a mode while the state of the transmitter is the standby state, the controller sets the designated mode.
    Type: Application
    Filed: December 1, 2017
    Publication date: September 12, 2019
    Inventors: Takashi Takeyama, Takahito Obata
  • Patent number: 10308019
    Abstract: The present invention addresses the problem of enabling a charge control-type inkjet printer to enable real-time control during an operation and to maintain optimal printing conditions while operating. This charge control-type inkjet printer is provided with: a printing head including a nozzle unit for discharging ink; a pressure reduction valve for adjusting the pressure of the ink to be supplied to the nozzle unit of the printing head; and an ink container for accommodating the ink to be supplied to the nozzle unit of the printing head, wherein an imaging unit is further provided which images an image of ink that is discharged from the nozzle unit and is in a particulate state.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: June 4, 2019
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Hiromichi Takeyama, Masahiko Ogino, Keisuke Nagai, Takashi Sato
  • Patent number: 10301995
    Abstract: An oxidation catalyst device is placed so that a central axis of the oxidation catalyst device may be oriented along a right and left direction of a work vehicle; a reducing agent injection device is placed so that a central axis of the reducing agent injection device may be oriented along a front and rear direction of the work vehicle; and a selective catalytic reduction device is placed so that a central axis of the selective catalytic reduction device may be oriented along the front and rear direction of the work vehicle, in which the oxidation catalyst device, the reducing agent injection device, and the selective catalytic reduction device are arranged so as to have a relationship that the central axes thereof become the same in height, and the central axis of the selective catalytic reduction device is placed so as to pass through the oxidation catalyst device.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: May 28, 2019
    Assignee: KCM Corporation
    Inventors: Takashi Takeyama, Hiroyuki Kizaki, Yoshihiro Itou
  • Publication number: 20190084360
    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: Application
    Filed: July 14, 2016
    Publication date: March 21, 2019
    Inventors: Yasuhisa TSUJITA, Takashi TAKEYAMA
  • Patent number: 10066364
    Abstract: A construction machine includes: a cover that covers an engine and a radiator; a radiator fan that is arranged at the rear of a vehicle body frame and discharges exhaust gas toward the rear of the vehicle body frame from the inner space of the cover; an injection device that injects a reducing agent into exhaust gas of the engine; a tank housing section that is arranged at one side of the vehicle body frame, includes an introduction section for introducing outside air, and houses a tank for storing the reducing agent injected by the injection device; and a connection section that is arranged in either the cover or the vehicle body frame and in the tank housing section, connects the inner space of the tank housing section and the inner space of the cover, and allows the outside air and the pipe to pass therethrough, the outside air having been introduced from the introduction section by the suction pressure of the radiator fan, the pipe supplying the reducing agent to the injection device.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: September 4, 2018
    Assignee: KCM Corporation
    Inventors: Yasuo Yamazaki, Takashi Takeyama, Keigo Kikuchi, Akira Shimohira, Keisuke Kobayashi
  • Publication number: 20180238220
    Abstract: A work machine provided with an exhaust gas purifying device includes a selective catalytic reducing device that performs treatment on exhaust gas of an engine, and a reducing agent injection device that injects a reducing agent into exhaust gas to be supplied to the selective catalytic reducing device. The work machine is provided with a housing that delimits an engine room accommodating the engine and the exhaust gas purifying device. The housing includes a top board that covers the engine room above the engine, and an exhaust duct that is provided in the top board and discharges the air in the engine room to the outside of the engine room. A part of a reducing agent supply pipe for guiding the reducing agent to the reducing agent injection device is disposed in the exhaust duct in a position above the reducing agent injection device.
    Type: Application
    Filed: January 5, 2017
    Publication date: August 23, 2018
    Inventors: Yoshihiro ITOU, Hiroyuki KIZAKI, Takashi TAKEYAMA
  • Patent number: 9957695
    Abstract: An exhaust system of a work machine is equipped with a first exhaust system, a second exhaust system, and a third exhaust system. The first exhaust system and the third exhaust system are arranged to be in parallel with respective one ends directed in the same direction. In a plan view, the second exhaust system is arranged with the other end side directed in the same direction as the one end sides of the first exhaust system and the third exhaust system to be in parallel with the first exhaust system and the third exhaust system between the first exhaust system and the third exhaust system and, in a side view, is arranged above the first exhaust system and the third exhaust system.
    Type: Grant
    Filed: December 25, 2015
    Date of Patent: May 1, 2018
    Assignee: KCM CORPORATION
    Inventors: Takashi Takeyama, Keigo Kikuchi, Katsutaka Hara, Masashi Yamashita
  • Publication number: 20170284255
    Abstract: An oxidation catalyst device is placed so that a central axis of the oxidation catalyst device may be oriented along a right and left direction of a work vehicle; a reducing agent injection device is placed so that a central axis of the reducing agent injection device may be oriented along a front and rear direction of the work vehicle; and a selective catalytic reduction device is placed so that a central axis of the selective catalytic reduction device may be oriented along the front and rear direction of the work vehicle, in which the oxidation catalyst device, the reducing agent injection device, and the selective catalytic reduction device are arranged so as to have a relationship that the central axes thereof become the same in height, and the central axis of the selective catalytic reduction device is placed so as to pass through the oxidation catalyst device.
    Type: Application
    Filed: March 7, 2017
    Publication date: October 5, 2017
    Inventors: Takashi TAKEYAMA, Hiroyuki KIZAKI, Yoshihiro ITOU
  • Publication number: 20170284060
    Abstract: A construction machine includes: a cover that covers an engine and a radiator; a radiator fan that is arranged at the rear of a vehicle body frame and discharges exhaust gas toward the rear of the vehicle body frame from the inner space of the cover; an injection device that injects a reducing agent into exhaust gas of the engine; a tank housing section that is arranged at one side of the vehicle body frame, includes an introduction section for introducing outside air, and houses a tank for storing the reducing agent injected by the injection device; and a connection section that is arranged in either the cover or the vehicle body frame and in the tank housing section, connects the inner space of the tank housing section and the inner space of the cover, and allows the outside air and the pipe to pass therethrough, the outside air having been introduced from the introduction section by the suction pressure of the radiator fan, the pipe supplying the reducing agent to the injection device.
    Type: Application
    Filed: October 23, 2015
    Publication date: October 5, 2017
    Applicant: KCM Corporation
    Inventors: Yasuo YAMAZAKI, Takashi TAKEYAMA, Keigo KIKUCHI, Akira SHIMOHIRA, Keisuke KOBAYASHI
  • Publication number: 20170284059
    Abstract: An exhaust system of a work machine is equipped with a first exhaust system, a second exhaust system, and a third exhaust system. The first exhaust system and the third exhaust system are arranged to be in parallel with respective one ends directed in the same direction. In a plan view, the second exhaust system is arranged with the other end side directed in the same direction as the one end sides of the first exhaust system and the third exhaust system to be in parallel with the first exhaust system and the third exhaust system between the first exhaust system and the third exhaust system and, in a side view, is arranged above the first exhaust system and the third exhaust system.
    Type: Application
    Filed: December 25, 2015
    Publication date: October 5, 2017
    Applicant: KCM Corporation
    Inventors: Takashi TAKEYAMA, Keigo KIKUCHI, Katsutaka HARA, Masashi YAMASHITA
  • Patent number: 9458605
    Abstract: A work vehicle including a front work device, contains: a variable displacement hydraulic pump that is driven by an engine and supplies pressure oil to an actuator that drives the front work device; an exhaust gas purification device that purifies nitrogen oxide in exhaust gas discharged from the engine using a reducing agent solution stored in a reducing agent tank; a remaining amount detection device that detects a remaining amount of the reducing agent solution in the reducing agent tank; and a control unit that decreases output torque of the engine and also decreases a rotational speed of the engine in a rated point according to decrease of the remaining amount of the reducing agent solution detected by the remaining amount detection device.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: October 4, 2016
    Assignees: Hitachi Construction Machinery Co., Ltd., KABUSHIKI KAISHA KCM
    Inventors: Koji Hyodo, Takashi Takeyama, Tetsuji Tanaka, Isamu Aoki, Katsutaka Hara, Tatsuo Oouchi
  • Publication number: 20150098783
    Abstract: A work vehicle including a front work device, contains: a variable displacement hydraulic pump that is driven by an engine and supplies pressure oil to an actuator that drives the front work device; an exhaust gas purification device that purifies nitrogen oxide in exhaust gas discharged from the engine using a reducing agent solution stored in a reducing agent tank; a remaining amount detection device that detects a remaining amount of the reducing agent solution in the reducing agent tank; and a control unit that decreases output torque of the engine and also decreases a rotational speed of the engine in a rated point according to decrease of the remaining amount of the reducing agent solution detected by the remaining amount detection device.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 9, 2015
    Inventors: Koji HYODO, Takashi TAKEYAMA, Tetsuji TANAKA, Isamu AOKI, Katsutaka HARA, Tatsuo OOUCHI
  • Patent number: 8855870
    Abstract: A clutch control device for an industrial vehicle includes: a braking force detection device that detects braking force of the industrial vehicle; a speed stage detection device that detects a set speed stage of a transmission; a clutch control device that controls engage/release of a forward clutch so that the forward clutch is released when a clutch cut off condition is judged to be satisfied based upon braking force of the industrial vehicle detected by the braking force detection device; and a switching device that automatically switches the clutch cut off condition in the clutch control device based upon a set speed stage of the transmission detected by the speed stage detection device.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: October 7, 2014
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Koji Hyodo, Takashi Takeyama, Akira Shimohira
  • Publication number: 20120296530
    Abstract: A clutch control device for an industrial vehicle includes: a braking force detection device that detects braking force of the industrial vehicle; a speed stage detection device that detects a set speed stage of a transmission; a clutch control device that controls engage/release of a forward clutch so that the forward clutch is released when a clutch cut off condition is judged to be satisfied based upon braking force of the industrial vehicle detected by the braking force detection device; and a switching device that automatically switches the clutch cut off condition in the clutch control device based upon a set speed stage of the transmission detected by the speed stage detection device.
    Type: Application
    Filed: December 14, 2010
    Publication date: November 22, 2012
    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Koji Hyodo, Takashi Takeyama, Akira Shimohira
  • Patent number: 8085142
    Abstract: A receiver includes two reception antennas, which receive a modulated wave (transmission signal) from each of transmitters, a selection circuit, which alternately selects one of the two reception antennas at a predetermined switching cycle to alternately obtain the modulated wave from the two reception antennas, and a demodulation section, which generates a demodulated signal by demodulating the modulated wave obtained at the selection circuit. The switching cycle is 27 ?s, which is 1/7.4 of the transmission time of data per symbol in the transmission signal from each transmitter, that is, 200 ?s. In other words, the modulated waves from the two reception antennas are alternately obtained at least seven times each while the data of one symbol is transmitted.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: December 27, 2011
    Assignee: Pacific Industrial Co., Ltd.
    Inventors: Shinichi Kawase, Takashi Takeyama, Syuji Aoyama
  • Publication number: 20100109858
    Abstract: A receiver 4 includes two reception antennas 11, which receive a modulated wave (transmission signal) from each of transmitters 3, a selection circuit 12, which alternately selects one of the two reception antennas 11 at a predetermined switching cycle to alternately obtain the modulated wave from the two reception antennas 11, and a demodulation section (15, 16), which generates a demodulated signal by demodulating the modulated wave obtained at the selection circuit 12. The switching cycle is 27 ?s, which is 1/7.4 of the transmission time of data per symbol in the transmission signal from each transmitter 3, that is, 200 ?s. In other words, the modulated waves from the two reception antennas 11 are alternately obtained at least seven times each while the data of one symbol is transmitted.
    Type: Application
    Filed: March 24, 2009
    Publication date: May 6, 2010
    Applicant: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Shinichi KAWASE, Takashi TAKEYAMA, Syuji AOYAMA
  • Patent number: D652061
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: January 10, 2012
    Assignees: Hitachi Construction Machinery Co., Ltd., KCM Corporation
    Inventors: Kazuhiko Hiraoka, Ei Takahashi, Yoshihiro Ito, Kazunori Komatsu, Hiroki Nakazono, Takashi Takeyama, Tadayoshi Aoki, Akira Shimohira, Hirofumi Oouchi