Patents by Inventor Yutaka Matsunaga

Yutaka Matsunaga 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: 20230158098
    Abstract: Provided is a technique that allows for the promotion of energy expenditure. The present invention is a composition for promoting energy expenditure, including, as an active ingredient, a milk protein hydrolysate having an average molecular weight of 220 Daltons or more and 1,000 Daltons or less, a peptide having only Met-Lys-Pro, or a peptide including the amino acid sequence.
    Type: Application
    Filed: March 23, 2018
    Publication date: May 25, 2023
    Applicant: MORINAGA MILK INDUSTRY CO., LTD.
    Inventors: Yutaka Matsunaga, Yasuyuki Sakata, Takumi Yago
  • Publication number: 20200261516
    Abstract: A main object of the present technology is to provide a composition for muscle mass increase capable of effectively increasing muscle mass with fewer side effects and high safety.
    Type: Application
    Filed: October 31, 2017
    Publication date: August 20, 2020
    Applicant: MORINAGA MILK INDUSTRY CO., LTD.
    Inventors: Kazuya Toda, Junichi Minami, Yutaka Matsunaga
  • Patent number: 9621009
    Abstract: An electric power tool, which uses a DC brushless motor as a drive source and controls the DC brushless motor by a switching element, can include a tubular housing main body portion accommodating the DC brushless motor, and a grip portion protruding from a side portion of the housing main body portion. The switching element is arranged inside the grip portion, and is spaced apart from an electronic circuit board for an electronic component for operating the switching element.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: April 11, 2017
    Assignee: MAKITA CORPORATION
    Inventors: Yutaka Matsunaga, Takeshi Nishimiya
  • Patent number: 9190947
    Abstract: An electric power tool according to the present invention is provided with a tool main body, an induction motor, a power supply unit, and an inverter. The power supply unit and the inverter are integrally incorporated in the tool main body together with the induction motor.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: November 17, 2015
    Assignee: MAKITA CORPORATION
    Inventors: Kenya Yanagihara, Yoshitaka Ichikawa, Motohiro Omura, Yutaka Matsunaga
  • Publication number: 20140312721
    Abstract: An electric power tool, which uses a DC brushless motor as a drive source and controls the DC brushless motor by a switching element, can include a tubular housing main body portion accommodating the DC brushless motor, and a grip portion protruding from a side portion of the housing main body portion. The switching element is arranged inside the grip portion, and is spaced apart from an electronic circuit board for an electronic component for operating the switching element.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 23, 2014
    Applicant: Makita Corporation
    Inventors: Yutaka MATSUNAGA, Takeshi NISHIMIYA
  • Patent number: 8810085
    Abstract: An electric power tool, which uses a DC brushless motor as a drive source and controls the DC brushless motor by a switching element, can include a tubular housing main body portion accommodating the DC brushless motor, and a grip portion protruding from a side portion of the housing main body portion. The switching element is arranged inside the grip portion, and is spaced apart from an electronic circuit board for an electronic component for operating the switching element.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: August 19, 2014
    Assignee: Makita Corporation
    Inventors: Yutaka Matsunaga, Takeshi Nishimiya
  • Patent number: 8678106
    Abstract: A rotary impact tool includes: a hammer rotating by receiving a rotational force of a motor; an anvil rotating by receiving a rotational force of the hammer; and an end tool attached to the anvil, the rotary impact tool being constructed such that when a torque of a value not less than a predetermined value is applied to the anvil from the outside, the hammer is disengaged from the anvil to rotate idle and applies an impact to the anvil in a rotational direction after rotating idle by a predetermined angle, the rotary impact tool including an impact detector configured to detect impacts and a speed switching device configured to switch the rotational speed of the motor, and when the impact detector detects an impact during rotation of the anvil in a tightening direction, the speed switching device switches the rotational speed of the motor from a normal speed to a low speed.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: March 25, 2014
    Assignee: Makita Corporation
    Inventors: Yutaka Matsunaga, Hirokatsu Yamamoto, Katsuna Hayashi, Yoshitaka Ichikawa
  • Patent number: 8410756
    Abstract: A battery pack is provided with a plurality of battery modules; a pack main body that removably receives the plurality of battery modules; a movable member that prohibits the plurality of battery modules from being attached to and removed from the pack main body at a first position; at least one sensor that detects whether the movable member is located at the first position or not; and a controller that performs at least one predetermined processing based on detection by the at least one sensor.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: April 2, 2013
    Assignee: Makita Corporation
    Inventors: Kazuyuki Sakakibara, Hiroshi Murata, Yutaka Matsunaga, Munetoshi Goto
  • Patent number: 8350512
    Abstract: An electric power tool is provided that includes a motor as a driving source, a first operation switch, a first semiconductor switch, and a second semiconductor switch. The first operation switch is operated by a user to be turned ON/OFF. The first semiconductor switch, provided on a current path from the power source to the motor, includes at least one semiconductor switching device. When the first operation switch is OFF, the first semiconductor switch is turned OFF to interrupt the current path. When the first operation switch is ON, the first semiconductor switch is turned ON to close the current path. The second semiconductor switch is provided on the current path in series with the first semiconductor switch and includes at least one semiconductor switching device. The second semiconductor switch closes/interrupts the current path by being turned ON/OFF in accordance with an input control signal.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: January 8, 2013
    Assignee: Makita Corporation
    Inventors: Yutaka Matsunaga, Hidekazu Suda, Takeshi Nishimiya
  • Publication number: 20130000938
    Abstract: A hand-held power tool comprises a motor, an output section which is rotationally driven by the motor, and an output change section which changes the output of the output section in a stepless manner while normally driving the motor. The hand-held power tool is improved so that the output of the output section during working can be smoothly controlled.
    Type: Application
    Filed: October 22, 2010
    Publication date: January 3, 2013
    Applicant: MAKITA CORPORATION
    Inventors: Yutaka Matsunaga, Manabu Tokunaga, Shinji Hirabayashi
  • Patent number: 8346384
    Abstract: A cutting machine of the present invention for cutting a material to be cut, which is placed on a table, with a rotating saw blade, includes an imaging device, a determination device and a stopping device. The imaging device takes a video image of an area on the table and outputs the video image. The determination device makes a determination on whether or not a number of pixels of a specific color, which is previously set, exceeds a predetermined threshold in one frame of image constituting the video image outputted from the imaging device. The stopping device stops rotation of the saw blade when it is determined by the determination device that the number of pixels of the specific color exceeds the predetermined threshold.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: January 1, 2013
    Assignee: Makita Corporation
    Inventors: Kazuhito Murakami, Kazutoki Otake, Hiroshi Murata, Yutaka Matsunaga, Takeshi Nishimiya
  • Patent number: 8215528
    Abstract: A drive tool includes an ejector, a press member, a press detection switch, an operation member, an operation detection switch, a control unit, an operation state detector, and a report unit. The control unit makes the ejector carry out ejection of a fastening tool when the press detection switch and the operation detection switch are turned on. The operation state detector detects a case where the drive tool comes into one of a plurality of kinds of preset operation states which include at least one operation state other than a state of a battery. Report patterns different for each of the plurality of kinds of operation states are set in the report unit. When one of the operation states is detected by the operation state detector, the report unit reports the detection using the report pattern set corresponding to the detected operation state.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: July 10, 2012
    Assignee: Makita Corporation
    Inventors: Yutaka Matsunaga, Hidekazu Suda, Jiro Oda, Kenichi Miyata
  • Patent number: 8179069
    Abstract: An electric power tool includes a direct current motor, at least one switching device, a trigger switch, a control unit, and a drive unit. The control unit sets a driving duty ratio for PWM controlling the direct current motor so as to increase the driving duty ratio in a stepwise manner in accordance with an operation continuation time of the trigger switch during a period from when an operation of the trigger switch is started until when a predetermined start-up time has elapsed.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: May 15, 2012
    Assignee: Makita Corporation
    Inventors: Yutaka Matsunaga, Hirokatsu Yamamoto, Takuya Kusakawa
  • Patent number: 8167183
    Abstract: A lock lever is provided in association with a trigger, and the trigger is configured not to be turned on unless the third operation for unlocking the lock lever is performed, so that it is ensured that an erroneous operation of the trigger is prevented further reliably.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: May 1, 2012
    Assignee: Makita Corporation
    Inventors: Yutaka Matsunaga, Hidekazu Suda, Shinji Hirabayashi
  • Publication number: 20120079799
    Abstract: An electric power tool is provided that includes a motor as a driving source, a first operation switch, a first semiconductor switch, and a second semiconductor switch. The first operation switch is operated by a user to be turned ON/OFF. The first semiconductor switch, provided on a current path from the power source to the motor, includes at least one semiconductor switching device. When the first operation switch is OFF, the first semiconductor switch is turned OFF to interrupt the current path. When the first operation switch is ON, the first semiconductor switch is turned ON to close the current path. The second semiconductor switch is provided on the current path in series with the first semiconductor switch and includes at least one semiconductor switching device. The second semiconductor switch closes/interrupts the current path by being turned ON/OFF in accordance with an input control signal.
    Type: Application
    Filed: December 13, 2011
    Publication date: April 5, 2012
    Applicant: MAKITA CORPORATION
    Inventors: Yutaka MATSUNAGA, Hidekazu SUDA, Takeshi NISHIMIYA
  • Patent number: 8098036
    Abstract: An electric power tool is provided that includes a motor as a driving source, a first operation switch, a first semiconductor switch, and a second semiconductor switch. The first operation switch is operated by a user to be turned ON/OFF. The first semiconductor switch, provided on a current path from the power source to the motor, includes at least one semiconductor switching device. When the first operation switch is OFF, the first semiconductor switch is turned OFF to interrupt the current path. When the first operation switch is ON, the first semiconductor switch is turned ON to close the current path. The second semiconductor switch is provided on the current path in series with the first semiconductor switch and includes at least one semiconductor switching device. The second semiconductor switch closes/interrupts the current path by being turned ON/OFF in accordance with an input control signal.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: January 17, 2012
    Assignee: Makita Corporation
    Inventors: Yutaka Matsunaga, Hidekazu Suda, Takeshi Nishimiya
  • Publication number: 20110315417
    Abstract: A rotary impact tool includes: a hammer rotating by receiving a rotational force of a motor; an anvil rotating by receiving a rotational force of the hammer; and an end tool attached to the anvil, the rotary impact tool being constructed such that when a torque of a value not less than a predetermined value is applied to the anvil from the outside, the hammer is disengaged from the anvil to rotate idle and applies an impact to the anvil in a rotational direction after rotating idle by a predetermined angle, the rotary impact tool including an impact detection means detecting impacts and a speed switching means switching the rotational speed of the motor, and when the impact detection means detects an impact during rotation of the anvil in a tightening direction, the speed switching means switches the rotational speed of the motor from a normal speed to a low speed.
    Type: Application
    Filed: January 14, 2010
    Publication date: December 29, 2011
    Applicant: MAKITA CORPORATION
    Inventors: Yutaka Matsunaga, Hirokatsu Yamamoto, Katsuna Hayashi, Yoshitaka Ichikawa
  • Publication number: 20110187211
    Abstract: An electric power tool, which uses a DC brushless motor as a drive source and controls the DC brushless motor by a switching element, can include a tubular housing main body portion accommodating the DC brushless motor, and a grip portion protruding from a side portion of the housing main body portion. The switching element is arranged inside the grip portion, and is spaced apart from an electronic circuit board for an electronic component for operating the switching element.
    Type: Application
    Filed: July 2, 2009
    Publication date: August 4, 2011
    Applicant: MAKITA CORPORATION
    Inventors: Yutaka Matsunaga, Takeshi Nishimiya
  • Publication number: 20100320969
    Abstract: A battery pack is provided with a plurality of battery modules; a pack main body that removably receives the plurality of battery modules; a movable member that prohibits the plurality of battery modules from being attached to and removed from the pack main body at a first position; at least one sensor that detects whether the movable member is located at the first position or not; and a controller that performs at least one predetermined processing based on detection by the at least one sensor.
    Type: Application
    Filed: August 23, 2010
    Publication date: December 23, 2010
    Applicant: MAKITA CORPORATION
    Inventors: Kazuyuki Sakakibara, Hiroshi Murata, Yutaka Matsunaga, Munetoshi Goto
  • Publication number: 20100237126
    Abstract: A drive tool includes an ejector, a press member, a press detection switch, an operation member, an operation detection switch, a control unit, an operation state detector, and a report unit. The control unit makes the ejector carry out ejection of a fastening tool when the press detection switch and the operation detection switch are turned on. The operation state detector detects a case where the drive tool comes into one of a plurality of kinds of preset operation states which include at least one operation state other than a state of a battery. Report patterns different for each of the plurality of kinds of operation states are set in the report unit. When one of the operation states is detected by the operation state detector, the report unit reports the detection using the report pattern set corresponding to the detected operation state.
    Type: Application
    Filed: September 12, 2008
    Publication date: September 23, 2010
    Applicant: MAKITA CORPORATION
    Inventors: Yutaka Matsunaga, Hidekazu Suda, Jiro Oda, Kenichi Miyata