Patents by Inventor Masamichi Nakamura

Masamichi Nakamura 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: 20240045429
    Abstract: In order to cause a drone to fly in a stable manner, the present invention is characterized by having: a simulation device that executes, on each of a plurality of pieces of virtual wind condition data, a simulation of an air flow at a location where the drone will fly, outputs a simulation result that is the result of the simulation, and performs a flow field feature amount analysis on the simulation result, thereby calculating a flow field feature amount, and stores the flow field feature amount in an analysis result DB in association with the virtual wind condition data; and a wind condition estimating device that, on the basis of measured wind condition data, acquires a simulation result of the virtual wind condition data corresponding to the measured wind condition data and outputs the acquired simulation result to a drone control device.
    Type: Application
    Filed: March 26, 2020
    Publication date: February 8, 2024
    Inventor: Masamichi NAKAMURA
  • Patent number: 11499854
    Abstract: Provided is a physical quantity detection device capable of improving noise performance of a flow rate detection unit as compared with the related art. The physical quantity detection device 20 includes a plate-like chip package 208 that is arranged to protrude from the flow path of the measurement target gas and has a width W along the flow direction of the measurement target gas. The chip package 208 includes a flow rate detection unit 205, an accelerating flow path 208c, a measurement surface 208a, a non-measurement surface 208b, and a separation flow portion 208d. The cross sectional area of the accelerating flow path 208c is reduced, and the flow rate detection unit 205 is arranged. The separation flow portion 208d partitions the second sub-passage 234b into a measurement flow path facing the measurement surface 208a and a non-measurement flow path facing the non-measurement surface 208b.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: November 15, 2022
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Akira Uenodan, Satoshi Noda, Naoki Saito, Masamichi Nakamura, Takahiro Miki, Nobuaki Gorai, Takayuki Ishikawa
  • Publication number: 20220307876
    Abstract: In the physical quantity detection device, the occurrence of the measurement error is reduced by suppressing the flow bias in the sub-passage and reducing the resistance in the passage. A physical quantity detection device 30 of the present invention includes a measuring portion 310 disposed in a main passage, a sub-passage 330 that takes a gas to be measured from the main passage, a support member 603 that divides a part of the sub-passage into two flow paths of one surface side and the other surface side in a direction intersecting a passage width direction, and a flow rate detection element 602 disposed on one surface of the support member. The sub-passage includes a straight portion 321 in which the support member is disposed and a downstream curved portion 322 that is curved to one side in the passage width direction of the straight portion.
    Type: Application
    Filed: June 12, 2020
    Publication date: September 29, 2022
    Inventors: Masamichi NAKAMURA, Akira UENODAN, Takahiro MIKI, Nobuaki GORAI, Naoki SAITO, Takayuki ISHIKAWA
  • Publication number: 20220128389
    Abstract: Provided is a physical quantity detection device capable of improving noise performance of a flow rate detection unit as compared with the related art. The physical quantity detection device 20 includes a plate-like chip package 208 that is arranged to protrude from the flow path of the measurement target gas and has a width W along the flow direction of the measurement target gas. The chip package 208 includes a flow rate detection unit 205, an accelerating flow path 208c, a measurement surface 208a, a non-measurement surface 208b, and a separation flow portion 208d. The cross sectional area of the accelerating flow path 208c is reduced, and the flow rate detection unit 205 is arranged. The separation flow portion 208d partitions the second sub-passage 234b into a measurement flow path facing the measurement surface 208a and a non-measurement flow path facing the non-measurement surface 208b.
    Type: Application
    Filed: January 23, 2020
    Publication date: April 28, 2022
    Inventors: Akira UENODAN, Satoshi NODA, Naoki SAITO, Masamichi NAKAMURA, Takahiro MIKI, Nobuaki GORAI, Takayuki ISHIKAWA
  • Publication number: 20210080614
    Abstract: To predict a temporal change of weather with high accuracy. A weather prediction system including a prediction unit that calculates weather prediction data for an area including a point targeted for prediction, a correlation calculation unit that calculates a correlation between a weather variable of the weather prediction data at a predetermined time at the point targeted for prediction and a weather variable of the weather prediction data at a time different from the predetermined time at a point other than the point targeted for prediction, an observed value acquisition unit that acquires an observed value of an area including the point other than the point targeted for prediction, and a correction unit that corrects the weather prediction data for the area including the point targeted for prediction based on information on the correlation and the observed value.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 18, 2021
    Inventors: Masamichi NAKAMURA, Masashi FUKAYA
  • Patent number: 10846715
    Abstract: An energy operation system, apparatus, and method capable of stably supplying energy and providing adjustment control based on prediction precision and planning precision for energy supply and demand. An energy operation apparatus includes a demand predictor, planner, evaluator, and solution quality controller. The demand predictor predicts demand and/or a power generation amount of future energy in a management area. The planner prepares a future energy supply plan in the management area based on a prediction. The evaluator evaluates supply and/or demand conditions including at least one of future weather in the management area, energy demand in the management area, a demand density and/or a generation density of future energy in the management area. The solution quality controller controls the quality of at least one of a prediction solution of the demand predictor and the energy supply plan of the planner based on an evaluation result from the evaluator.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: November 24, 2020
    Assignee: HITACHI, LTD.
    Inventors: Tohru Watanabe, Isao Hagiya, Masamichi Nakamura, Yu Ikemoto, Masato Utsumi, Masashi Fukaya, Jyunpei Ogawa, Hiroaki Ogawa, Ikuo Shigemori, Hiroshi Iimura
  • Publication number: 20190369572
    Abstract: An energy operation system, apparatus, and method capable of stably supplying energy and providing adjustment control based on prediction precision and planning precision for energy supply and demand. An energy operation apparatus includes a demand predictor, planner, evaluator, and solution quality controller. The demand predictor predicts demand and/or a power generation amount of future energy in a management area. The planner prepares a future energy supply plan in the management area based on a prediction. The evaluator evaluates supply and/or demand conditions including at least one of future weather in the management area, energy demand in the management area, a demand density and/or a generation density of future energy in the management area. The solution quality controller controls the quality of at least one of a prediction solution of the demand predictor and the energy supply plan of the planner based on an evaluation result from the evaluator.
    Type: Application
    Filed: March 11, 2019
    Publication date: December 5, 2019
    Applicant: HITACHI, LTD.
    Inventors: Tohru WATANABE, Isao HAGIYA, Masamichi NAKAMURA, Yu IKEMOTO, Masato UTSUMI, Masashi FUKAYA, Jyunpei OGAWA, Hiroaki OGAWA, Ikuo SHIGEMORI, Hiroshi IIMURA
  • Patent number: 8963458
    Abstract: The electric tool is powered by a secondary battery as a power source, and includes: an output section configured to be transmitted thereto a rotation of a motor directly or through a decelerator; a voltage measurement section that measures a battery voltage; a storage means that stores, as a reference voltage, a voltage value of the battery voltage measured preliminarily when a motor-lock is occurring; and a control means that controls a driving of the motor. The control means is configured to decide that the motor is being locked and then stop or decelerate the motor upon detecting that the battery voltage measured through the voltage measurement section is maintained lower than or equal to the reference voltage stored in the storage means for a predetermined period of time during the driving of the motor.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: February 24, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Motoharu Muto, Masamichi Nakamura, Masaki Ikeda
  • Patent number: 8534375
    Abstract: An electric power tool includes a body part for outputting a rotational force at one end thereof, a grip part provided to extend from the body part in an intersecting relationship with the body part, and a suspension link provided at the other end of the body part for hanging the body part. The suspension link is configured to ensure that, if the body part is suspended from the suspension link using the suspension link as a pivot point, the electric power tool is kept by a weight balance in a horizontal posture in which the extension direction of the grip part is substantially orthogonal to the vertical direction or an inclined horizontal posture in which the joint portion of the body part and the grip part is positioned at the upper side.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: September 17, 2013
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Matsumoto, Masamichi Nakamura, Hidekazu Yuasa
  • Publication number: 20130193881
    Abstract: The electric tool is powered by a secondary battery as a power source, and includes: an output section configured to be transmitted thereto a rotation of a motor directly or through a decelerator; a voltage measurement section that measures a battery voltage; a storage means that stores, as a reference voltage, a voltage value of the battery voltage measured preliminarily when a motor-lock is occurring; and a control means that controls a driving of the motor. The control means is configured to decide that the motor is being locked and then stop or decelerate the motor upon detecting that the battery voltage measured through the voltage measurement section is maintained lower than or equal to the reference voltage stored in the storage means for a predetermined period of time during the driving of the motor.
    Type: Application
    Filed: September 12, 2011
    Publication date: August 1, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Motoharu Muto, Masamichi Nakamura, Masaki Ikeda
  • Publication number: 20110073340
    Abstract: An electric power tool includes a body part for outputting a rotational force at one end thereof, a grip part provided to extend from the body part in an intersecting relationship with the body part, and a suspension link provided at the other end of the body part for hanging the body part. The suspension link is configured to ensure that, if the body part is suspended from the suspension link using the suspension link as a pivot point, the electric power tool is kept by a weight balance in a horizontal posture in which the extension direction of the grip part is substantially orthogonal to the vertical direction or an inclined horizontal posture in which the joint portion of the body part and the grip part is positioned at the upper side.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 31, 2011
    Applicant: Panasonic Electric Works Power Tools Co., Ltd.
    Inventors: Hiroshi MATSUMOTO, Masamichi Nakamura, Hidekazu Yuasa
  • Patent number: 7395873
    Abstract: A power tool includes a grip portion having a vertically extending axis; a main body provided at a top end of the grip portion and having an axis intersecting the vertical axis; a motor; an output portion projecting from the grip portion and rotatingly driven by the motor; a trigger provided for movement along a trigger moving zone; a stopper portion accommodated in the grip portion for protrusion and retraction into and from the trigger moving zone, the stopper portion adapted to selectively make contact with the trigger to thereby limit the maximum pulling amount of the trigger; and a stopper operating portion for operating the stopper portion. The stopper portion is protruded into or retracted from the trigger moving zone by slidingly actuating the stopper operating portion in a crosswise direction perpendicularly intersecting the axis of the main body as viewed from the top.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: July 8, 2008
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Masamichi Nakamura, Yoshikazu Okada
  • Patent number: 7258616
    Abstract: A fixed type constant velocity universal joint having an outer joint member having eight arcuate guide grooves extending in the axial direction in an inner spherical surface, an inner joint member having eight arcuate guide grooves extending in the axial direction in an outer spherical surface. Eight balls are disposed between the guide grooves of the outer joint member and guide grooves of the inner joint member. A cage is interposed between the outer and inner joint members for retaining the balls. A center of the guide grooves of the outer joint member is offset from the center of the inner spherical surface, and the center of the guide grooves of the inner joint member is offset from the center of the outer spherical surface by an equal distance to opposite sides in the axial direction. A relation of 0.45?B/A?0.65 is established, where A represents the wall thickness of the cage, and B represents the radial displacement of balls at a maximum joint angle.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: August 21, 2007
    Assignee: NTN Corporation
    Inventors: Masazumi Kobayashi, Tohru Nakagawa, Tomoshige Kobayashi, Masamichi Nakamura
  • Publication number: 20070023197
    Abstract: A power tool includes a grip portion having a vertically extending axis; a main body provided at a top end of the grip portion and having an axis intersecting the vertical axis; a motor for generating a rotational force; an output portion provided at one axial end of the main body projecting from the grip portion and rotatingly driven by the motor; a trigger provided on an upper output-portion-side surface of the grip portion for movement along a trigger moving zone; a stopper portion accommodated in the grip portion for protrusion and retraction into and from the trigger moving zone, the stopper portion adapted to, when protruded into the trigger moving zone, make contact with the trigger to thereby limit The maximum pulling amount of the trigger; and a stopper operating portion for operating the stopper portion.
    Type: Application
    Filed: July 28, 2006
    Publication date: February 1, 2007
    Applicant: Matsushita Electric Works, Ltd.
    Inventors: Masamichi Nakamura, Yoshikazu Okada
  • Patent number: 7147565
    Abstract: A fixed type constant velocity joint is disclosed in which the angle defined by a straight line connecting a contact point between a cage and an outer joint member and a contact point between the cage and an inner joint member, and the centerline of the cage is made not more than 10 degrees.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: December 12, 2006
    Assignee: NTN Corporation
    Inventors: Tohru Nakagawa, Masazumi Kobayashi, Masamichi Nakamura, Hiroshi Tone
  • Publication number: 20050079918
    Abstract: A fixed type constant velocity universal joint comprising an outer joint member (1) having eight arcuate guide grooves (1b) extending in the axial direction in an inner spherical surface (1a), an inner joint member (2) having eight arcuate guide grooves (2b) extending in the axial direction in an outer spherical surface (2a), eight balls (3) disposed between the guide grooves (1b) of the outer joint member (1) and guide grooves (2b) of the inner joint member (2), and a cage (4) interposed between the outer and inner joint members (1) and (2) for retaining the balls (3), in which center (P) of guide grooves (1b) of the outer joint member (1) is offset from center (O) of inner spherical surface (1a), and center (Q) of guide grooves (2b) of the inner joint member (2) is offset from center (O) of outer spherical surface (2a) by equal distance (PO=QO=F) to opposite sides in the axial direction, and the relation of 0.45?B/A?0.
    Type: Application
    Filed: September 1, 2004
    Publication date: April 14, 2005
    Inventors: Masazumi Kobayashi, Tohru Nakagawa, Tomoshige Kobayashi, Masamichi Nakamura
  • Publication number: 20040180724
    Abstract: A fixed type constant velocity joint is disclosed in which the angle defined by a straight line connecting a contact point between a cage and an outer joint member and a contact point between the cage and an inner joint member, and the centerline of the cage is made not more than 10 degrees.
    Type: Application
    Filed: February 10, 2004
    Publication date: September 16, 2004
    Inventors: Tohru Nakagawa, Masazumi Kobayashi, Masamichi Nakamura, Hiroshi Tone