Patents by Inventor Masahito Tanaka

Masahito Tanaka 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: 11957020
    Abstract: A light-emitting device is described that includes a plurality of partially drivable light sources, and a color conversion component configured to convert at least part of incident light from at least part of the light sources and emit outgoing light falling in a different wavelength region from the incident light, where the color conversion component includes a pyrromethene derivative.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: April 9, 2024
    Assignee: Toray Industries, Inc.
    Inventors: Yasunori Ichihashi, Daisaku Tanaka, Masahito Nishiyama, Keizo Udagawa, Yuka Tatematsu
  • Patent number: 11911150
    Abstract: A light irradiation unit configured to irradiate a measurement part with a light beam that has a wavelength absorbed by glucose and a detection unit configured to detect a photoacoustic signal generated from the measurement part irradiated with the light beam emitted from the light irradiation unit are included. The light irradiation unit irradiates the measurement part by scanning the light beam 2-dimensionally. The measurement part is irradiated with the light beam through raster scanning. For example, the light beam has a beam diameter of about 100 ?m and is scanned at a scanning speed of about 100 ?m/10 ms.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: February 27, 2024
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Katsuhiro Ajito, Michiko Seyama, Daichi Matsunaga, Masahito Nakamura, Yujiro Tanaka
  • Publication number: 20220393634
    Abstract: A processing apparatus acquires a first rise transition that is a rise transition of the temperature of a winding and a second rise transition that is a rise transition of the temperature detected by a temperature sensor in a state where voltage application for raising the temperature of the winding to a predetermined temperature is performed, determines a predetermined temperature characteristic model by calculating a predetermined parameter on the basis of the second rise transition, and further determines a winding temperature characteristic model by calculating a winding related parameter on the basis of the first rise transition.
    Type: Application
    Filed: October 20, 2020
    Publication date: December 8, 2022
    Inventors: Masahito TANAKA, Hitoshi FUKUHARA, Mamoru EGI, Yasushi ONO
  • Patent number: 11408839
    Abstract: The processing device includes: a temperature transition acquisition unit that acquires rising transition of the temperature of the winding in a state in which a first voltage is applied in order to raise a temperature of the winding to a first temperature and further acquires falling transition of the temperature of the winding in a state in which a second voltage is applied in order to lower the temperature of the winding to a second temperature that is lower than the first temperature after the temperature of the winding converges to the first temperature; and a decision unit that calculates stator-related parameters on the basis of the falling transition to decide a stator temperature characteristic mode and further calculates winding-related parameters on the basis of the rising transition and a stator temperature characteristic model to decide a winding temperature characteristic model.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: August 9, 2022
    Assignee: OMRON Corporation
    Inventors: Masahito Tanaka, Mamoru Egi, Yasushi Ono
  • Patent number: 11287805
    Abstract: Provided is a technology of enabling notification, to a user, that the state of a machine system has changed prior to occurrence of machine resonance, irrespective of the direction of a resonance frequency change.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: March 29, 2022
    Assignee: OMRON Corporation
    Inventors: Masahito Tanaka, Mamoru Egi
  • Publication number: 20200338121
    Abstract: A carbon dioxide slow-release pack for skin according to the present invention is a carbon dioxide slow-release pack which has a bag shape for slowly releasing carbon dioxide enclosed therein, thereby bringing the carbon dioxide into contact with the skin, and is formed into a bag shape by at least a resin sheet (A), and the resin sheet (A) satisfies at least the following requirements (A-1) and (A-2): (A-1) A carbon dioxide permeability measured under the conditions of 23° C. and a relative humidity of 0% according to JIS K7126-1 is 20 L/(m2·day·atm) or more, (A-2) An Oken-type air permeability measured at 23° C. according to JIS P8117: 2009 is less than 5 ?m/(Pa·s).
    Type: Application
    Filed: October 17, 2018
    Publication date: October 29, 2020
    Applicants: MITSUI CHEMICALS, INC., KAO CORPORATION
    Inventors: Tomoya MATAYOSHI, Takayuki WATANABE, Michio ERIGUCHI, Masahito TANAKA
  • Publication number: 20200278658
    Abstract: Provided is a technology of enabling notification, to a user, that the state of a machine system has changed prior to occurrence of machine resonance, irrespective of the direction of a resonance frequency change.
    Type: Application
    Filed: October 10, 2018
    Publication date: September 3, 2020
    Applicant: OMRON Corporation
    Inventors: Masahito TANAKA, Mamoru EGI
  • Patent number: 10720868
    Abstract: Provided is a motor control device having a function of estimating inductance and resistance of a motor for which inductance and resistance thereof are unknown. The motor control device includes a power converter, a current controller which calculates the voltage command input to the power converter using a detection result of a current value of a drive current of the motor, a current command generation unit which specifies a frequency for motor constant calculation on the basis of an electrical time constant of the motor, generates a sine wave of the frequency for motor constant calculation, and inputs the sine wave to the current controller as the current command, and a motor constant calculation unit which obtains a frequency response while the sine wave is input to the current controller as the current command, and calculates resistance and inductance of the motor from the obtained frequency response.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: July 21, 2020
    Assignee: OMRON Corporation
    Inventors: Masahito Tanaka, Yasushi Ono
  • Publication number: 20200093188
    Abstract: A water repellency-imparted fiber article (10) of the present invention includes: a fiber article (1) having a skin-facing surface (1a) and a non-skin-facing surface (1b); and a water repellency-imparting agent attached to the fiber article (1). The fiber article (1) contains a water-absorbent fiber and has water absorbency in terms of a water absorption time of 30 seconds or less as measured in accordance with the dropping method of JIS L-1907. The water repellency-imparted fiber article (10) has a non-skin-side water-repellent region (2) on the non-skin-facing surface (1b) of the fiber article (1), the non-skin-side water-repellent region (2) including a portion to which the water repellency-imparting agent is attached.
    Type: Application
    Filed: December 22, 2017
    Publication date: March 26, 2020
    Applicant: KAO CORPORATION
    Inventors: Masahito TANAKA, Tetsuji KITO, Kenichi OTANI, Hirofumi NAKANISHI
  • Publication number: 20200014319
    Abstract: Provided is a motor control device having a function of estimating inductance and resistance of a motor for which inductance and resistance thereof are unknown. The motor control device includes a power converter, a current controller which calculates the voltage command input to the power converter using a detection result of a current value of a drive current of the motor, a current command generation unit which specifies a frequency for motor constant calculation on the basis of an electrical time constant of the motor, generates a sine wave of the frequency for motor constant calculation, and inputs the sine wave to the current controller as the current command, and a motor constant calculation unit which obtains a frequency response while the sine wave is input to the current controller as the current command, and calculates resistance and inductance of the motor from the obtained frequency response.
    Type: Application
    Filed: March 15, 2019
    Publication date: January 9, 2020
    Applicant: OMRON Corporation
    Inventors: Masahito TANAKA, Yasushi ONO
  • Publication number: 20200011820
    Abstract: The processing device includes: a temperature transition acquisition unit that acquires rising transition of the temperature of the winding in a state in which a first voltage is applied in order to raise a temperature of the winding to a first temperature and further acquires falling transition of the temperature of the winding in a state in which a second voltage is applied in order to lower the temperature of the winding to a second temperature that is lower than the first temperature after the temperature of the winding converges to the first temperature; and a decision unit that calculates stator-related parameters on the basis of the falling transition to decide a stator temperature characteristic mode and further calculates winding-related parameters on the basis of the rising transition and a stator temperature characteristic model to decide a winding temperature characteristic model.
    Type: Application
    Filed: March 15, 2019
    Publication date: January 9, 2020
    Applicant: OMRON Corporation
    Inventors: Masahito TANAKA, Mamoru EGI, Yasushi ONO
  • Patent number: 9932651
    Abstract: A heavy wall and high strength seamless steel pipe having high sour resistance is provided. In particular, a quenching and tempering treatment is conducted to adjust the yield strength to be higher than 450 MPa and adjust the Vickers hardness HV5 that can be measured at an outermost side or an innermost side of the pipe under a 5 kgf load (test load: 49 N) to be 250 HV5 or less.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: April 3, 2018
    Assignee: JFE Steel Corporation
    Inventors: Yasuhide Ishiguro, Mitsuo Kimura, Kenichiro Eguchi, Hiroshi Yokogawa, Tadao Katagiri, Masahito Tanaka
  • Patent number: 9603755
    Abstract: An absorbent member containing a hydrophobic material subjected to hydrophilic treatment, a plurality of through holes passing through the absorbent member in a thickness direction formed at a portion of the absorbent member in a target region (P). The absorbent member has a layer-stacked structure of a plurality of layers, stacked in the thickness direction. The Klemm water absorption height of a lower layer most proximal to the backsheet is higher than that of an upper layer most proximal to the topsheet. The backsheet contains a moisture permeable film including a plurality of microvoids, and having water repellent portions formed by water repellent finishing, on a portion in the target region (P) of a skin-facing surface of the moisture permeable film. A ratio of the total area of portions on which the water repellent finishing is performed to the area of the target region (P) is from 30% to 60%.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: March 28, 2017
    Assignee: KAO Corporation
    Inventor: Masahito Tanaka
  • Publication number: 20160271019
    Abstract: Provided is a cutting device electrically connectable to a conductive wire of a conductive-wire mounted package provided with the conductive wire that allows for electric current to flow to the package with a drug housed therein to detect a change in current flowing state of the conductive wire which is cut along with discharging of the drug from the conductive-wire mounted package. The detecting device includes a holding part configured to hold therein the conductive-wire mounted package and electrically connectable to the conductive wire. The holding part includes a pair of holding pieces that are movable toward and away from each other, and a positioning structure that is provided in at least one of the pair of holding pieces to position the conductive-wire mounted package relative to the holding part.
    Type: Application
    Filed: June 26, 2014
    Publication date: September 22, 2016
    Inventor: Masahito TANAKA
  • Patent number: 8980167
    Abstract: There is provided a cost-effective stainless steel pipe having excellent expandability for oil country tubular goods, the stainless steel pipe having excellent CO2 corrosion resistance under a severe corrosive environment containing CO2, Cl?, and the like. The stainless steel pipe having excellent expandability for oil country tubular goods contains 0.05% or less C, 0.50% or less Si, Mn: 0.10% to 1.50%, 0.03% or less P, 0.005% or less S, 10.5% to 17.0% Cr, 0.5% to 7.0% Ni, 3.0% or less Mo, 0.05% or less Al, 0.20% or less V, 0.15% or less N, and 0.008% or less O, optionally at least one selected from Nb, Cu, Ti, Zr, Ca, B, and W, in a specific content, and the balance being Fe and incidental impurities, wherein a microstructure mainly having a tempered martensitic phase has an austenitic phase content exceeding 20%.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: March 17, 2015
    Assignee: JFE Steel Corporation
    Inventors: Mitsuo Kimura, Yoshio Yamazaki, Masahito Tanaka
  • Patent number: 8840378
    Abstract: A thrust generating apparatus is configured to generate thrust by ejecting water. The thrust generating apparatus includes: a first water lubricated bearing opposed to one side surface and outer peripheral surface of rotor main body and supports a thrust and radial load; a second water lubricated bearing opposed to the other side surface and outer peripheral surface of rotor main body and supports the thrust and radial load; a first water intake port that opens toward a portion of a channel; a second water intake port that opens toward another portion of the channel; a first water conveyance tube through which the water having flowed through the first water intake port is guided to the second water lubricated bearing; and a second water conveyance tube through which the water having flowed through the second water intake port is guided to the first water lubricated bearing.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: September 23, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Masahito Tanaka, Hiromitsu Kiyose, Tetsuro Ikebuchi, Kentaro Nakagawa
  • Publication number: 20140163508
    Abstract: An absorbent member containing a hydrophobic material subjected to hydrophilic treatment, a plurality of through holes passing through the absorbent member in a thickness direction formed at a portion of the absorbent member in a target region (P). The absorbent member has a layer-stacked structure of a plurality of layers, stacked in the thickness direction. The Klemm water absorption height of a lower layer most proximal to the backsheet is higher than that of an upper layer most proximal to the topsheet. The backsheet contains a moisture permeable film including a plurality of microvoids, and having water repellent portions formed by water repellent finishing, on a portion in the target region (P) of a skin-facing surface of the moisture permeable film. A ratio of the total area of portions on which the water repellent finishing is performed to the area of the target region (P) is from 30% to 60%.
    Type: Application
    Filed: December 9, 2013
    Publication date: June 12, 2014
    Applicant: KAO CORPORATION
    Inventor: Masahito TANAKA
  • Publication number: 20140137992
    Abstract: A heavy wall and high strength seamless steel pipe having high sour resistance is provided. In particular, a quenching and tempering treatment is conducted to adjust the yield strength to be higher than 450 MPa and adjust the Vickers hardness HV5 that can be measured at an outermost side or an innermost side of the pipe under a 5 kgf load (test load: 49 N) to be 250 HV5 or less.
    Type: Application
    Filed: June 29, 2012
    Publication date: May 22, 2014
    Applicant: JFE Steel Corporation
    Inventors: Yasuhide Ishiguro, Mitsuo Kimura, Kenichiro Eguchi, Hiroshi Yokogawa, Tadao Katagiri, Masahito Tanaka
  • Patent number: 8708668
    Abstract: A thrust generating apparatus is provided under water and configured to generate thrust by ejecting the water. A rotor main body includes: a first member including a side surface and outer peripheral surface which are opposed to a first water lubricated bearing; a second member including a side surface and outer peripheral surface which are opposed to a second water lubricated bearing; and a third member including a supporting surface contacting an inner peripheral surface of a rotor core. The first to third members are fixed to one another so that each member is detachable.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: April 29, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Masahito Tanaka, Hiromitsu Kiyose, Tetsuro Ikebuchi, Kentaro Nakagawa
  • Patent number: 8512487
    Abstract: A seamless expandable oil country tubular article, which has a superior pipe expansion property in a expanding process at an expand ratio of more than about 30% although having a high strength such as a tensile strength (TS) of about 600 MPa or more, and a manufacturing method thereof, the seamless expandable oil country tubular goods being in an as-rolled state or being processed, optionally necessary, by inexpensive nonthermal-refining type heat treatment.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: August 20, 2013
    Assignee: JFE Steel Corporation
    Inventors: Yoshio Yamazaki, Yukio Miyata, Mitsuo Kimura, Kei Sakata, Masahito Tanaka