Patents by Inventor Hajime Takada

Hajime Takada 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: 20220285410
    Abstract: A photoelectric conversion member included in a photodiode PD2 is disposed at the position overlapping with a section B1, a photoelectric conversion member included in a photodiode PD1 is disposed at the position overlapping with a section B2, and a photoelectric conversion member included in the photodiode PD1 is disposed at the position overlapping with a section B3. A plurality of electrodes 25 each forming a Metal-Insulator-Semiconductor (MIS) structure together with a semiconductor layer 10 is disposed on a front surface FS of the semiconductor layer 10. At least one of the plurality of electrodes 25 overlaps with at least one of eight sections B2 to B9.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 8, 2022
    Inventors: Yoshiaki Takada, Hajime Ikeda, Keisuke Ota, Yoichiro Handa
  • Publication number: 20220096217
    Abstract: The array device of an aspect of the present invention is an array device to be attached to a denture plate and one or more artificial teeth to thereby array the one or more artificial teeth on the denture plate, the array device comprising: a body having one or mere recesses recessed in conformity with crown shapes of the one or more artificial teeth, wherein the body includes one or more positioning portions for positioning the one or more artificial teeth on the denture plate.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 31, 2022
    Inventor: Hajime TAKADA
  • Publication number: 20210236239
    Abstract: A dental prosthetic device design method according to an aspect of the present invention is a method for designing a dental prosthetic device by a computer, the method including: acquiring scan data of maxillary and mandibular dentitions; determining a restoration site of a tooth, based on the scan data; reading out plural pieces of attrition shape data of a tooth related to the restoration site, from maxillary and mandibular tooth shape data sets having plural pieces of attrition shape data with different degrees of attrition for each tooth of the maxillary and mandibular dentitions; selecting attrition shape data from among the plural pieces of attrition shape data, in accordance with the degrees of attrition of the maxillary and mandibular dentitions; placing the selected attrition shape data at the restoration site; and creating shape data of a dental prosthetic device from the attrition shape data placed at the restoration site.
    Type: Application
    Filed: February 1, 2021
    Publication date: August 5, 2021
    Inventors: Hajime TAKADA, Tomoyuki INOUE
  • Patent number: 11066733
    Abstract: It is an object of the present invention to provide a production method of a calcium-based metallic glass alloy molded body for medical use which has a biodegradable property, has a mechanical strength equal to or higher than that of metal materials, and enables complex molding and a wide range of applications. The calcium-based metallic glass alloy molded body for medical use is produced by mixing a metal powder including a calcium powder, alloying the mixed metal powder, and sintering the alloyed mixed metal powder.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: July 20, 2021
    Assignee: TOHOKU UNIVERSITY
    Inventors: Hiroyasu Kanetaka, Guoqiang Xie, Hajime Takada
  • Patent number: 10856820
    Abstract: An auxiliary instrument according to the present invention is an auxiliary instrument for dental use used as a reference of alignment for creating three-dimensional intraoral image data by connecting a plurality of pieces of three-dimensional image data obtained by three-dimensionally measuring an inside of an oral cavity, the auxiliary instrument including a sheet portion having a first surface and a second surface opposed to the first surface, and a plurality of identification portions formed in a thickness direction (Z direction) of the sheet portion from the first surface of the sheet portion, each of the plurality of identification portions having a three-dimensional shape configured to be identified.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: December 8, 2020
    Assignee: KABUSHIKI KAISHA SHOFU
    Inventors: Hajime Takada, Ryohei Kondo
  • Publication number: 20190298280
    Abstract: An auxiliary instrument according to the present invention is an auxiliary instrument for dental use used as a reference of alignment for creating three-dimensional intraoral image data by connecting a plurality of pieces of three-dimensional image data obtained by three-dimensionally measuring an inside of an oral cavity, the auxiliary instrument including a sheet portion having a first surface and a second surface opposed to the first surface, and a plurality of identification portions formed in a thickness direction (Z direction) of the sheet portion from the first surface of the sheet portion, each of the plurality of identification portions having a three-dimensional shape configured to be identified.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Inventors: Hajime TAKADA, Ryohei KONDO
  • Publication number: 20190024223
    Abstract: It is an object of the present invention to provide a production method of a calcium-based metallic glass alloy molded body for medical use which has a biodegradable property, has a mechanical strength equal to or higher than that of metal materials, and enables complex molding and a wide range of applications. The calcium-based metallic glass alloy molded body for medical use is produced by mixing a metal powder including a calcium powder, alloying the mixed metal powder, and sintering the alloyed mixed metal powder.
    Type: Application
    Filed: March 30, 2017
    Publication date: January 24, 2019
    Inventors: Hiroyasu KANETAKA, Guoqiang XIE, Hajime TAKADA
  • Patent number: 8869394
    Abstract: There is provided a method of connecting electric wires in which connecting strength is improved, and at the same time, dispersion of the connecting strength can be depressed. The method of connecting electric wires includes a step for removing coatings of a plurality of electric wires 51 thereby to expose conductors 52, a step for holding at least two places of a plurality of the electric wires 51, a step for twisting the conductors together while keeping a distance between the two holding places constant, and a step for welding the conductors by ultrasonic welding.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: October 28, 2014
    Assignee: Yazaki Corporation
    Inventors: Yousuke Takayashiki, Hajime Takada, Yoshihiko Watanabe, Kouichirou Matsushita
  • Publication number: 20120234029
    Abstract: The present invention particularly relates to a decrease in a standby power in an outdoor side unit, in an air conditioner comprising an indoor side unit and the outdoor side unit. The air conditioner includes a current detector which detects an alternating current flowing through a power line connecting the indoor side unit to the outdoor side unit, and a switch which performs a circuit communicating operation in a case where a current value detected by this current detector exceeds a predetermined standard value, and the air conditioner has a constitution in which via this switch, an operation of an outdoor side control circuit is started, and with the driving of a motor of the indoor side unit, the outdoor side control circuit is operated.
    Type: Application
    Filed: March 16, 2011
    Publication date: September 20, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Taku Miyauchi, Koichi Saruhashi, Hajime Takada
  • Publication number: 20110296683
    Abstract: There is provided a method of connecting electric wires in which connecting strength is improved, and at the same time, dispersion of the connecting strength can be depressed. The method of connecting electric wires includes a step for removing coatings of a plurality of electric wires 51 thereby to expose conductors 52, a step for holding at least two places of a plurality of the electric wires 51, a step for twisting the conductors together while keeping a distance between the two holding places constant, and a step for welding the conductors by ultrasonic welding.
    Type: Application
    Filed: February 17, 2010
    Publication date: December 8, 2011
    Applicant: YAZAKI CORPORATION
    Inventors: Yousuke Takayashiki, Hajime Takada, Yoshihiko Watanabe, Kouichirou Matsushita
  • Patent number: 7987724
    Abstract: The apparatus and method prevent inspection omission when ultrasonic flaw detection using a transducer array is applied to inspection of a test object being conveyed at a high speed.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: August 2, 2011
    Assignee: JFE Steel Corporation
    Inventor: Hajime Takada
  • Patent number: 7698944
    Abstract: Even in measurement in which the measurement time is limited to a short time, soundness of a spot weld zone can be evaluated with high reliability without being influenced by a positional deviation between an ultrasonic probe and the spot weld zone and the coupling condition between an ultrasonic probe and a metal sheet. Specifically, ultrasonic waves propagating along the surface of a test object are transmitted in a plurality of directions from a plurality of wave sending positions outside the spot weld zone in metal sheets (1a, 1b), and ultrasonic waves propagating along the surface of the test object with propagation paths not including the spot weld zone and ultrasonic waves propagating along the surface of the test object with propagation paths including the spot weld zone are received at a plurality of wave receiving positions outside the spot weld zone to evaluate the soundness of the spot weld zone.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: April 20, 2010
    Assignee: JFE Steel Corporation
    Inventor: Hajime Takada
  • Publication number: 20090241675
    Abstract: The apparatus and method prevent inspection omission when ultrasonic flaw detection using a transducer array is applied to inspection of a test object being conveyed at a high speed.
    Type: Application
    Filed: May 25, 2006
    Publication date: October 1, 2009
    Inventor: Hajime Takada
  • Publication number: 20070240512
    Abstract: Even in measurement in which the measurement time is limited to a short time, soundness of a spot weld zone can be evaluated with high reliability without being influenced by a positional deviation between an ultrasonic probe and the spot weld zone and the coupling condition between an ultrasonic probe and a metal sheet. Specifically, ultrasonic waves propagating along the surface of a test object are transmitted in a plurality of directions from a plurality of wave sending positions outside the spot weld zone in metal sheets (1a, 1b), and ultrasonic waves propagating along the surface of the test object with propagation paths not including the spot weld zone and ultrasonic waves propagating along the surface of the test object with propagation paths including the spot weld zone are received at a plurality of wave receiving positions outside the spot weld zone to evaluate the soundness of the spot weld zone.
    Type: Application
    Filed: August 31, 2005
    Publication date: October 18, 2007
    Inventor: Hajime Takada
  • Publication number: 20050229961
    Abstract: This invention, the mechanical gait stabilizer comprises a sensor, a supporting structure, transmitters and brakes systems enable to brake wheels without any control at the time of people to use a walker with; detecting frictional force by said sensor where a spring detecting changes of floor friction coefficient through changing of frictional force of a sled that touched on a floor and in order to stable the movement of the sled, providing a sled upper structure guidance section on the sled in order to enable said sled upper structure guidance section to move defined area, and increasing a strength that causes from a stretch of spring, which occurs from changes by the detected friction force, by using the lever as a transmitter.
    Type: Application
    Filed: March 30, 2005
    Publication date: October 20, 2005
    Inventors: Shigeo Takizawa, Hajime Takada
  • Patent number: 6777931
    Abstract: The testing results, etc. of surface flaws such as cracks formed in or just below a surface of a body to be detected are displayed using colors within different color regions in the color space when displaying, on the basis of a preset threshold value, the test signal ranging in magnitude from zero to the threshold value and the test signal falling in magnitude beyond the threshold value while changing the color and/or the depth of color little by little within each of the color regions according to the magnitude of the test signal. This enables small flaw signals, etc. to be displayed without exception, thereby preventing small flaws, etc. from being overlooked.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: August 17, 2004
    Assignee: Kawasaki Steel Corporation
    Inventors: Hajime Takada, Ryouichi Sugimoto, Ikuo Yarita
  • Patent number: 6474163
    Abstract: A method and apparatus for ultrasonic flaw detection of line focus type suitable for detection of flaws in nonmetallic materials included in an object. Ultrasonic transmitter and receiver elements of line focus type are opposed at a distance (L) with an object under test placed between them, and a maximum ultrasonic echo is obtained at a distance Lp expressed by: Lp=0.75(FT+FR)−{(CS/CW)−1}t where FT (mm) is the focal length in the medium of the ultrasonic transmitter element of line focus type, FR (mm) is the focal length in the medium of the ultrasonic receiver element line focus type, CS (m/sec) is the speed of ultrasound in an object under test, CW (m/sec) is the speed of ultrasound in the medium, and t (mm) is the thickness of the object under test.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: November 5, 2002
    Assignee: Kawasaki Steel Corporation
    Inventors: Hajime Takada, Akira Torao, Ikuo Yarita
  • Patent number: 6446509
    Abstract: An ultrasonic testing method uses surface waves to prevent false detection of primary cracks, to lower the level of structural noises from grain boundaries, and to improve the detectability in the ultrasonic testing by surface wave testing of hot rolling rolls. A surface wave probe 10 capable of transmitting and receiving a surface wave is provided with a piezoelectric element 10A, a resin wedge 10C disposed on the front surface of the piezoelectric element 10A and a damping block 10B disposed on the back surface. The surface wave probe 10 is driven to produce a short pulse having a pulse length being at most 2.5 times the wavelength of the surface wave to be produced. A coupling liquid medium is supplied to the probe 10 in accordance with the peripheral speed of the roll to be tested. Depending on the height of the reflected waves measured, the grinding allowance of the roll is determined, and the roll is ground according to the thus-determined grinding allowance.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: September 10, 2002
    Assignee: Kawasaki Steel Corporation
    Inventors: Hajime Takada, Ryouichi Sugimoto, Takashi Morii, Ikuo Yarita
  • Patent number: 6341525
    Abstract: An ultrasonic testing method uses surface waves to prevent false detection of primary cracks, to lower the level of structural noises from grain boundaries, and to improve the detectability in the ultrasonic testing by surface wave testing of hot rolling rolls. A surface wave probe 10 capable of transmitting and receiving a surface wave is provided with a piezoelectric element 10A, a resin wedge 10C disposed on the front surface of the piezoelectric element 10A and a damping block 10B disposed on the back surface. The surface wave probe 10 is driven to produce a short pulse having a pulse length being at most 2.5 times the wavelength of the surface wave to be produced. A coupling liquid medium is supplied to the probe 10 in accordance with the peripheral speed of the roll to be tested. Depending on the height of the reflected waves measured, the grinding allowance of the roll is determined, and the roll is ground according to the thus-determined grinding allowance.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: January 29, 2002
    Assignee: Kawasaki Steel Corporation
    Inventors: Hajime Takada, Ryouichi Sugimoto, Takashi Morii, Ikuo Yarita
  • Patent number: 6266983
    Abstract: A flaw detecting method and apparatus for continuously testing a strip that is continuously carried through a liquid includes features for reducing air bubble generation in a liquid. The apparatus includes a liquid, carrying rolls for passage of the strip through the liquid, and ultrasonic testing probes arranged in the liquid for testing the strip. A carrying roll in contact with the liquid is fully immersed. Air bubble generation is inhibited to improve the testing reliability by at least one of (a) shielding the liquid dropping from the portion of the strip leaving the liquid, (b) reducing the dropping force of the liquid onto the liquid surface by inclining the strip, (c) installing the fully immersed carrying roll at a depth of at least 5 mm in the liquid, and (d) using a carrying speed of less than about 200 m/min. Upon manufacturing steel strips, testing is carried out in the stage of hot-rolled steel sheet, or, preferably, in pickling equipment.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: July 31, 2001
    Assignee: Kawasaki Steel Corporation
    Inventors: Hajime Takada, Toshihiro Sasaki, Masato Iri, Makoto Aratani, Hideo Kuguminato, Hidenori Miyake, Masuto Shimizu, Susumu Okada, Yasuo Tomura