Patents by Inventor Teppei Tanaka

Teppei 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).

  • Publication number: 20220246605
    Abstract: A variable capacitance circuit includes a capacitor array having a first capacitor in which a plurality of MIM capacitors are coupled in parallel and a second capacitor in which a plurality of MIM capacitors are coupled in series, and a switch array having a first switch and a second switch. A shape pattern of at least one of a first electrode of the first capacitor, a first ground shield, a second electrode of the second capacitor, and a second ground shield is set so that a first capacitance difference per 1 LSB between first capacitance values of the first capacitor when the first switch is turned on and off and a second capacitance difference per 1 LSB between second capacitance values of the second capacitor when the second switch is turned on and off are close to each other.
    Type: Application
    Filed: February 2, 2022
    Publication date: August 4, 2022
    Inventors: Atsushi TANAKA, Teppei HIGUCHI
  • Publication number: 20220243072
    Abstract: A corrosion-resistant member including: a metal base material (10); and a corrosion-resistant coating (30) formed on the surface of the base material (10). The corrosion-resistant coating (30) is a stack of a magnesium fluoride layer (31) and an aluminum fluoride layer (32) in order from the base material (10) side. The aluminum fluoride layer (32) has a first crystalline region (32A) and a second crystalline region (32B) containing crystalline aluminum fluoride. The first crystalline region (32A) is a region in which diffraction spot arrays having regularity are observed in an electron beam diffraction image obtained by irradiation with electron beams having a beam diameter of 10 nm to 20 nm. The second crystalline region (32B) is a region in which a plurality of diffraction spots is observed but diffraction spot arrays having regularity are not observed in an electron beam diffraction image obtained by irradiation with the above-described electron beams.
    Type: Application
    Filed: February 24, 2021
    Publication date: August 4, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: So MIYAISHI, Masahiro OKUBO, Masayuki YOSHIMURA, Wataru SAKANE, Teppei TANAKA, Saeko NAKAMURA, Saori YAMAKI
  • Publication number: 20220247352
    Abstract: A circuit device includes an oscillation circuit and a processing circuit that generates capacitance control data. The oscillation circuit includes a variable capacitance circuit whose capacitance value is variably controlled based on the capacitance control data, and an oscillation frequency thereof is controlled based on the capacitance value of the variable capacitance circuit. The variable capacitance circuit includes a capacitor array. The capacitor array includes a plurality of capacitors each having a binary-weighted capacitance value, and a plurality of switches that are on-off controlled based on the capacitance control data. The processing circuit outputs the capacitance control data, which is subjected to dithering, so as to switch the capacitance value of the variable capacitance circuit between a first capacitance value and a second capacitance value in a time division manner.
    Type: Application
    Filed: January 28, 2022
    Publication date: August 4, 2022
    Inventors: Yuichi TORIUMI, Hideo HANEDA, Teppei HIGUCHI, Atsushi TANAKA
  • Publication number: 20220195605
    Abstract: A corrosion-resistant member including: a metal base material (10); and a corrosion-resistant coating (30) formed on the surface of the base material (10). The corrosion-resistant coating (30) is a stack of a magnesium fluoride layer (31) and an aluminum fluoride layer (32) in order from the base material (10) side. The aluminum fluoride layer (32) is a stack of a first crystalline layer (32A) containing crystalline aluminum fluoride, an amorphous layer (32B) containing amorphous aluminum fluoride, and a second crystalline layer (32C) containing crystalline aluminum fluoride in order from the magnesium fluoride layer (31) side. The first crystalline layer (32A) and the second crystalline layer (32C) are layers in which diffraction spots are observed in electron beam diffraction images obtained by electron beam irradiation and the amorphous layer (32B) is a layer in which a halo pattern is observed in an electron beam diffraction image obtained by electron beam irradiation.
    Type: Application
    Filed: September 3, 2020
    Publication date: June 23, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: So MIYAISHI, Masahiro OKUBO, Masayuki YOSHIMURA, Wataru SAKANE, Teppei TANAKA, Saeko NAKAMURA, Saori YAMAKI
  • Patent number: 11355344
    Abstract: A chuck plate is disposed between an annealing object and a holding table. The chuck plate has a function of attenuating thermal radiation light radiated from the annealing object and directed toward the holding table. The use of the chuck plate makes it possible to increase the accuracy of temperature measured by detection of thermal radiation light.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: June 7, 2022
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventor: Teppei Tanaka
  • Publication number: 20220114961
    Abstract: A pixel circuit driving method is a method for driving a pixel circuit that includes a drive transistor that supplies a current corresponding to a signal voltage supplied via a signal line, a write transistor connected between the signal line and a gate electrode of the drive transistor, and an organic EL element that emits light in accordance with the current. The pixel circuit driving method includes supplying a reference potential to the gate electrode of the drive transistor before a threshold correction preparation operation of making a gate-source voltage of the drive transistor higher than a threshold voltage of the drive transistor.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 14, 2022
    Applicant: JOLED INC.
    Inventors: Tetsuro YAMAMOTO, Kenji KOKUDA, Hitoshi TSUGE, Teppei TANAKA
  • Patent number: 11257686
    Abstract: A laser beam from a laser optical system is incident onto a semiconductor wafer. Thermal radiation light from the semiconductor wafer is incident onto an infrared detector. The infrared detector outputs a signal based on the intensity of the thermal radiation light. A processing device calculates a sheet resistance of the semiconductor wafer that is annealed by the laser beam on the basis of an output value of the infrared detector, and outputs a calculation value of the sheet resistance to an output device.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: February 22, 2022
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventor: Teppei Tanaka
  • Publication number: 20210287921
    Abstract: There is provided an annealing device including a heating unit that heats a surface of an annealing object to temporarily melt an outer layer portion, a sensor that detects thermal radiation light from the annealing object heated by the heating unit, and a processing unit that estimates an annealing result of the annealing object on the basis of a waveform showing a temporal change in an intensity of the thermal radiation light detected by the sensor.
    Type: Application
    Filed: June 2, 2021
    Publication date: September 16, 2021
    Inventor: Teppei Tanaka
  • Publication number: 20200312664
    Abstract: A chuck plate is disposed between an annealing object and a holding table. The chuck plate has a function of attenuating thermal radiation light radiated from the annealing object and directed toward the holding table. The use of the chuck plate makes it possible to increase the accuracy of temperature measured by detection of thermal radiation light.
    Type: Application
    Filed: June 12, 2020
    Publication date: October 1, 2020
    Inventor: Teppei Tanaka
  • Publication number: 20200016691
    Abstract: There is provided a laser machining device including a heat radiation measurement unit that measures intensity of heat radiation of a workpiece irradiated with a laser beam, and a determination unit that determines a state of a target by defining an object used in machining work as the target, based on the intensity of the heat radiation measured by the heat radiation measurement unit.
    Type: Application
    Filed: September 4, 2019
    Publication date: January 16, 2020
    Inventors: Teppei Tanaka, Satoshi Aizawa, Takeshi Aiba
  • Publication number: 20190074192
    Abstract: A laser beam from a laser optical system is incident onto a semiconductor wafer. Thermal radiation light from the semiconductor wafer is incident onto an infrared detector. The infrared detector outputs a signal based on the intensity of the thermal radiation light. A processing device calculates a sheet resistance of the semiconductor wafer that is annealed by the laser beam on the basis of an output value of the infrared detector, and outputs a calculation value of the sheet resistance to an output device.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 7, 2019
    Inventor: Teppei Tanaka
  • Patent number: 9247189
    Abstract: An optical module including a plurality of laser diodes and outputting optical beams emitted from the laser diodes includes a radiator unit for radiating heat and a case enclosing the optical module. The case has a first attachment surface to which a red laser diode is attached, a second attachment surface to which a green laser diode is attached, and a corner part where the first and second attachment surfaces intersect with each other. The optical module has a first attachment part, for connecting the case to the radiator unit, in the vicinity of the corner part.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: January 26, 2016
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventors: Seiichi Kato, Masahiko Kamesawa, Teppei Tanaka, Nobuyuki Maki
  • Patent number: 8902723
    Abstract: A fixing structure of an optical component is composed of a device chassis; a holder holding an optical component; first and second plate parts for joint to the device chassis and a connecting part of both the plate parts are formed in the holder; a plurality of joint holes are formed in the second plate part; a U-groove into which the connecting part of the holder is fitted and a plurality of through-holes are formed in the device chassis; and an adhesive that is extended in a circular columnar shape and is made by inserting the holder into the U-groove of the device chassis, and applying a UV-curing adhesive in such a manner that the UV-curing adhesive is bonded to the first plate part of the holder and is continuous to the inside of the joint hole via the inside of the through-hole, and radiating UV light along the through-hole.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: December 2, 2014
    Assignee: Hitachi Media Electronics Co., Ltd.
    Inventors: Hiroaki Furuichi, Yasuo Amano, Teppei Tanaka, Hitoshi Sugawara, Masahiko Kamesawa
  • Publication number: 20140234596
    Abstract: An adhesive structure of an optical component includes a horizontal surface and a vertical surface. In a structure in which an optical component is adhered to a chassis having the horizontal surface and the vertical surface, an adhesive force per unit area of the vertical surface is higher than that per unit area of the horizontal surface.
    Type: Application
    Filed: November 8, 2013
    Publication date: August 21, 2014
    Applicant: Hitachi Media Electronics Co., Ltd.
    Inventors: Masayuki OKAMURA, Hiroaki FURUICHI, Teppei TANAKA, Masahiko KAMESAWA, Hitoshi SUGAWARA
  • Publication number: 20140226452
    Abstract: A fixing structure of an optical component is composed of a device chassis; a holder holding an optical component; first and second plate parts for joint to the device chassis and a connecting part of both the plate parts are formed in the holder; a plurality of joint holes are formed in the second plate part; a U-groove into which the connecting part of the holder is fitted and a plurality of through-holes are formed in the device chassis; and an adhesive that is extended in a circular columnar shape and is made by inserting the holder into the U-groove of the device chassis, and applying a UV-curing adhesive in such a manner that the UV-curing adhesive is bonded to the first plate part of the holder and is continuous to the inside of the joint hole via the inside of the through-hole, and radiating UV light along the through-hole.
    Type: Application
    Filed: November 21, 2013
    Publication date: August 14, 2014
    Applicant: Hitachi Media Electronics Co., Ltd.
    Inventors: Hiroaki FURUICHI, Yasuo AMANO, Teppei TANAKA, Hitoshi SUGAWARA, Masahiko KAMESAWA
  • Publication number: 20140055756
    Abstract: An optical module including a plurality of laser diodes and outputting optical beams emitted from the laser diodes includes a radiator unit for radiating heat and a case enclosing the optical module. The case has a first attachment surface to which a red laser diode is attached, a second attachment surface to which a green laser diode is attached, and a corner part where the first and second attachment surfaces intersect with each other. The optical module has a first attachment part, for connecting the case to the radiator unit, in the vicinity of the corner part.
    Type: Application
    Filed: March 27, 2013
    Publication date: February 27, 2014
    Applicant: Hitachi Media Electronics Co., Ltd.
    Inventors: Seiichi KATO, Masahiko KAMESAWA, Teppei TANAKA, Nobuyuki MAKI
  • Publication number: 20140029076
    Abstract: An optical module including a case to hold the optical module, and two sloped surfaces symmetrically formed to enclose a first surface including the optical axis of the optical component in an optical component holder retaining a portion of the optical component, a sloped surface is formed in the case at one position each so as to be formed opposite to the sloped surfaces at two positions of the optical component or optical component holder, and the one sloped surface of the optical component or optical component holder and the one sloped surface of the case at opposite side are symmetrical to the second surface parallel to the first surface and including the side intersecting the surface extending from the sloped surface of the case and the sloped surface of optical component or optical component holder, and the section between these sloped surfaces contains adhesive.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 30, 2014
    Inventors: Seiichi KATO, Atsushi KAZAMA, Masahiko KAMESAWA, Teppei TANAKA, Norio HOSAKA
  • Publication number: 20130242265
    Abstract: In an optical module that aligns light beams from lasers of the three colors of red, green, and blue along a single combined beam optical axis, when the ambient temperature range is wider than the guaranteed operating range of the lasers, relative positional displacements of beam spots of the three colors that are generated due to a displacement or a deformation resulting from a temperature range at a heating time or a cooling time are suppressed. The optical module, which has mounted thereon a plurality of lasers, and emits light beams from the plurality of lasers, includes a cooling device that cools the entire optical module via a case on which the optical module is mounted, and heating devices that are provided on respective laser holders and individually heat the respective lasers.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 19, 2013
    Applicant: HITACHI MEDIA ELECTRONICS CO., LTD.
    Inventors: Seiichi KATO, Atsushi KAZAMA, Yasuo AMANO, Norio HOSAKA, Tsutomu KUROIWA, Teppei TANAKA
  • Patent number: 8499934
    Abstract: There is provided a package structure for packing a flat display unit which improves workability in taking a flat display unit out of a packing box. A lower cushioning material which supports a display portion of the flat display unit from below has a manual insertion portion so that the display portion can be held at a portion close to a lifting person's body when the display portion is taken out of a lower part of the packing box. A reinforcing rib is provided on a front side of the lower cushioning material to prevent damage to the lower cushioning material due to a reduction in strength. To prevent the lower cushioning material from being taken out together with the display portion when the display portion is taken out, a recess is provided in the lower cushioning material so that the recess is caught on a bending portion in the lower part when the display portion is taken out.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: August 6, 2013
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Teppei Tanaka, Yutaka Yamada, Shuji Kato
  • Publication number: 20130003022
    Abstract: A polarizing prism is shaped in the form of a hexahedron. A polarizing beam splitter film (PBS film) is arranged approximately in a diagonal direction of the hexahedron. The polarizing prism holds a relationship of A<B when the dimension thereof in an outgoing direction (Y direction) of a light beam to a screen is A and the dimension thereof in an incident direction (X direction) of a light beam from a light source is B. For example, the polarizing prism is shaped in the form of a rectangular parallelepiped. At a plane on which the light beam is launched from a scanning mirror, one end of the PBS film is placed so as to intersect with the incident plane at an angle of approximately 45° at a position deviated inside by a difference between the dimensions A and B from the end of the incident plane.
    Type: Application
    Filed: June 26, 2012
    Publication date: January 3, 2013
    Inventors: Teppei Tanaka, Takeshi Nakao, Masato Sugiyama, Michio Hatagi, Tomoto Kawamura, Hiromi Kita, Kunikazu Ohnishi