Patents by Inventor Masaaki Takamatsu

Masaaki Takamatsu 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).

  • Publication number: 20240279205
    Abstract: A benzimidazole derivative represented by formula (I) (wherein A1 to A3 and R1 to R6 are as described in the description) or a pharmaceutically acceptable salt thereof, which inhibits activation of STING pathway and, therefore, which is useful as a prophylactic or therapeutic medicine for inflammatory diseases, autoimmune diseases, cancer, etc.
    Type: Application
    Filed: March 24, 2021
    Publication date: August 22, 2024
    Inventors: Takao KIYOI, Hirokazu MATSUMOTO, Shiori TAKAMATSU, Masaaki SAWA
  • Patent number: 12037325
    Abstract: Provided herein are novel compounds having an inhibitory effect on the activation of a STING pathway. The provided compounds are 1,2-diaminobenzimidazole derivatives represented by a compound formula (I) or a pharmaceutically acceptable salt thereof: wherein A1, A2, R1, R2, R3, R4, and R5 are defined in the specification.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: July 16, 2024
    Assignee: CARNA BIOSCIENCES, INC.
    Inventors: Hirokazu Matsumoto, Takao Kiyoi, Shiori Takamatsu, Masaaki Sawa
  • Patent number: 10889244
    Abstract: The lighting control device includes a controller, a diagnosis circuit, a latch circuit, and a logic circuit. The controller outputs a control signal. The diagnosis circuit outputs an irregular signal. The latch circuit decides a state of a forcibly lighting signal. The logic circuit controls a light source in accordance with an ignition signal, the control signal, and the forcibly lighting signal. The logic circuit turns on the light source in accordance with the ignition signal while receiving the forcibly lighting signal, and turns on the light source in accordance with the control signal while not receiving the forcibly lighting signal.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: January 12, 2021
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masatoshi Ueno, Masaaki Takamatsu, Toshiaki Sasaki, Kazuya Kato
  • Patent number: 9884582
    Abstract: A lighting device includes a thermal sensor, power converter circuits and a control circuit. The thermal sensor is configured to measure an internal temperature of a case. The power converter circuits are housed in the case and configured to be connected with different types of light sources, respectively. The control circuit is housed in the case and has priorities that are provided with respect to the different types of light sources according to their respective types. The control circuit is configured to, when the internal temperature is greater than a threshold, control the respective outputs of the power converter circuits so as to preferentially decrease an output for a light source corresponding to a first priority.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: February 6, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kazuya Kato, Toshiaki Nakamura, Akihiro Kishimoto, Kenichi Fukuda, Masaaki Takamatsu
  • Publication number: 20170305328
    Abstract: A lighting device includes a thermal sensor, power converter circuits and a control circuit. The thermal sensor is configured to measure an internal temperature of a case. The power converter circuits are housed in the case and configured to be connected with different types of light sources, respectively. The control circuit is housed in the case and has priorities that are provided with respect to the different types of light sources according to their respective types. The control circuit is configured to, when the internal temperature is greater than a threshold, control the respective outputs of the power converter circuits so as to preferentially decrease an output for a light source corresponding to a first priority.
    Type: Application
    Filed: April 5, 2017
    Publication date: October 26, 2017
    Inventors: Kazuya KATO, Toshiaki NAKAMURA, Akihiro KISHIMOTO, Kenichi FUKUDA, Masaaki TAKAMATSU
  • Patent number: 9709165
    Abstract: In an apparatus for controlling an automatic transmission connected to a prime mover mounted on a vehicle, having a torque converter equipped with a lock-up clutch, when the automatic transmission is gear-shifted to a predetermined gear at deceleration of the vehicle and it is determined that predetermined operating conditions of the vehicle are satisfied, a lock-up clutch engaging circuit is formed through a hydraulic supply circuit. Next it is determined whether engage-position sticking malfunction of the lock-up clutch has occurred based on a ratio of an input rotational speed of the automatic transmission relative to an output rotational speed of the prime mover when the lock-up clutch engaging circuit has been formed, and fail-safe control is then implement when the sticking is determined.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: July 18, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masato Shigenaga, Masaaki Takamatsu, Yusuke Yoshimura
  • Patent number: 9623791
    Abstract: The lighting device includes a control circuit performing dimming control of dimming a light source device according to a desired dimming level. In the dimming control, the control circuit sets a desired current value of amplitude control to a value corresponding to the desired dimming level, and set a desired duty cycle of pulse width modulation control to a predetermined value associated with a dimming subrange containing the desired dimming level, of multiple different dimming subranges of a total dimming range of the light source device. The predetermined value is a duty cycle allowing luminance of the light source device to be equal to upper limit luminance of the associated dimming subrange under a condition where the current value of the current of the light source device is a maximum value.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: April 18, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takahiro Fukui, Masaaki Takamatsu, Kazuya Kato
  • Publication number: 20170072837
    Abstract: The lighting control device includes a controller, a diagnosis circuit, a latch circuit, and a logic circuit. The controller outputs a control signal. The diagnosis circuit outputs an irregular signal. The latch circuit decides a state of a forcibly lighting signal. The logic circuit controls a light source in accordance with an ignition signal, the control signal, and the forcibly lighting signal. The logic circuit turns on the light source in accordance with the ignition signal while receiving the forcibly lighting signal, and turns on the light source in accordance with the control signal while not receiving the forcibly lighting signal.
    Type: Application
    Filed: August 18, 2016
    Publication date: March 16, 2017
    Inventors: Masatoshi UENO, Masaaki TAKAMATSU, Toshiaki SASAKI, Kazuya KATO
  • Publication number: 20170008447
    Abstract: The lighting device includes a control circuit performing dimming control of dimming a light source device according to a desired dimming level. In the dimming control, the control circuit sets a desired current value of amplitude control to a value corresponding to the desired dimming level, and set a desired duty cycle of pulse width modulation control to a predetermined value associated with a dimming subrange containing the desired dimming level, of multiple different dimming subranges of a total dimming range of the light source device. The predetermined value is a duty cycle allowing luminance of the light source device to be equal to upper limit luminance of the associated dimming subrange under a condition where the current value of the current of the light source device is a maximum value.
    Type: Application
    Filed: July 7, 2016
    Publication date: January 12, 2017
    Inventors: Takahiro FUKUI, Masaaki TAKAMATSU, Kazuya KATO
  • Publication number: 20160017989
    Abstract: In an apparatus for controlling an automatic transmission connected to a prime mover mounted on a vehicle, having a torque converter equipped with a lock-up clutch, when the automatic transmission is gear-shifted to a predetermined gear at deceleration of the vehicle and it is determined that predetermined operating conditions of the vehicle are satisfied, a lock-up clutch engaging circuit is formed through a hydraulic supply circuit. Next it is determined whether engage-position sticking malfunction of the lock-up clutch has occurred based on a ratio of an input rotational speed of the automatic transmission relative to an output rotational speed of the prime mover when the lock-up clutch engaging circuit has been formed, and fail-safe control is then implement when the sticking is determined.
    Type: Application
    Filed: July 15, 2015
    Publication date: January 21, 2016
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masato Shigenaga, Masaaki Takamatsu, Yusuke Yoshimura
  • Patent number: 8682554
    Abstract: A control device for controlling an engagement state of a lock-up clutch is provided. A plurality of target slip ratio maps include a normal slip ratio map having a characteristic line of a target slip ratio defined in accordance with an engine load at a normal vehicle running condition and a modified slip ratio map having a characteristic line of the target slip ratio to become a facing calorific value lower than a facing calorific value corresponding to the slip ratio retrieved from the normal slip ratio map. In the case where an estimate value of the facing temperature continues to exceed first threshold temperature for more than predetermined time when to carry out slip control using the normal slip ratio map, control to switch the target slip ratio map from the normal slip ratio map to the modified slip ratio map is carried out.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: March 25, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masaaki Takamatsu, Yutaka Ishikawa, Shinya Abe
  • Patent number: 8498791
    Abstract: A lock-up control apparatus includes a kick-down instruction detector configured to detect a kick-down shift transmission instruction during application of a lock-up clutch. A first lock-up control amount changer is configured to change the lock-up control amount when the kick-down shift transmission instruction is detected. An intermediate gear speed determinator is configured to determine whether the kick-down shift transmission instruction includes an intermediate gear speed shift transmission instruction to an intermediate shift transmission gear speed. A second lock-up control amount changer is configured to change the lock-up control amount when the kick-down shift transmission instruction includes the intermediate gear speed shift transmission instruction. A target gear speed shift transmission instruction detector is configured to detect a target gear speed shift transmission instruction.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: July 30, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Akio Muto, Masaaki Takamatsu, Yasuhiro Ijichi
  • Publication number: 20110130933
    Abstract: A lock-up control apparatus includes a kick-down instruction detector configured to detect a kick-down shift transmission instruction during application of a lock-up clutch. A first lock-up control amount changer is configured to change the lock-up control amount when the kick-down shift transmission instruction is detected. An intermediate gear speed determinator is configured to determine whether the kick-down shift transmission instruction includes an intermediate gear speed shift transmission instruction to an intermediate shift transmission gear speed. A second lock-up control amount changer is configured to change the lock-up control amount when the kick-down shift transmission instruction includes the intermediate gear speed shift transmission instruction. A target gear speed shift transmission instruction detector is configured to detect a target gear speed shift transmission instruction.
    Type: Application
    Filed: November 26, 2010
    Publication date: June 2, 2011
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Akio MUTO, Masaaki Takamatsu, Yasuhiro Ijichi
  • Patent number: 7951042
    Abstract: A control device for an automatic transmission having a torque converter with a lock-up clutch provided between an engine and the automatic transmission, and a lock-up control device for controlling an engaged condition of the lock-up clutch.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: May 31, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshiharu Saitou, Masaaki Takamatsu
  • Publication number: 20100312444
    Abstract: A control device for controlling an engagement state of a lock-up clutch is provided. A plurality of target slip ratio maps include a normal slip ratio map having a characteristic line of a target slip ratio defined in accordance with an engine load at a normal vehicle running condition and a modified slip ratio map having a characteristic line of the target slip ratio to become a facing calorific value lower than a facing calorific value corresponding to the slip ratio retrieved from the normal slip ratio map. In the case where an estimate value of the facing temperature continues to exceed first threshold temperature for more than predetermined time when to carry out slip control using the normal slip ratio map, control to switch the target slip ratio map from the normal slip ratio map to the modified slip ratio map is carried out.
    Type: Application
    Filed: June 9, 2010
    Publication date: December 9, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masaaki TAKAMATSU, Yutaka Ishikawa, Shinya Abe
  • Publication number: 20080182721
    Abstract: A control device for an automatic transmission having a torque converter with a lock-up clutch provided between an engine and the automatic transmission, and a lock-up control device for controlling an engaged condition of the lock-up clutch.
    Type: Application
    Filed: January 24, 2008
    Publication date: July 31, 2008
    Applicant: Honda Motor Co., Ltd.
    Inventors: Yoshiharu SAITOU, Masaaki Takamatsu
  • Patent number: 5957807
    Abstract: In a control apparatus for a hydraulically operated vehicular transmission, the hydraulic pressure of a hydraulic clutch on the engaging side which is engaged at the time of speed changing (engaging pressure) is detected by a hydraulic pressure sensor. When the detected value of the engaging pressure has exceeded a predetermined value, the hydraulic pressure of a hydraulic clutch on the disengaging side to be disengaged at the time of speed changing (disengaging pressure) is reduced to a predetermined low pressure. Even if the detected value of the engaging pressure has exceeded a predetermined value YPC, the decrease in the disengaging pressure down to a predetermined low pressure QUPOFFB is delayed by a predetermined time YTMUP9 at the time of low oil temperature when the detected value of an oil temperature to be detected by an oil temperature sensor is below a predetermined value YTO.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: September 28, 1999
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masaaki Takamatsu, Osahide Miyamoto, Masahide Saito, Toshiyuki Suzuki, Tadahiro Suzuki
  • Patent number: 5565001
    Abstract: A control apparatus for a hydraulically operated vehicular transmission having a plurality of hydraulic engaging elements has an accumulator which is connected in parallel with a hydraulic engaging element for a low-speed transmission train and a back pressure generating source which generates a hydraulic oil pressure to be supplied to a back pressure chamber of the accumulator. The control apparatus includes a changeover valve which can be changed over between a first position in which the back pressure chamber of the accumulator and the back pressure generating source are brought into communication with each other and a second position in which the communication is cut off to lower a pressure in the back pressure chamber. The changeover valve is arranged to be changed over from the second position to the first position when a hydraulic oil pressure in the hydraulic engaging element for the low-speed transmission train has exceeded a predetermined pressure.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: October 15, 1996
    Assignee: Honda Giken Kabushiki Kaisha
    Inventors: Takafumi Sakai, Hideki Wakamatsu, Kenichi Haraguchi, Masaaki Takamatsu