Patents by Inventor Yasushi Tanaka

Yasushi 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: 20180284281
    Abstract: Provided is a measurement device or the like that expands a dynamic range easily and promptly as appropriate even when three-dimensional data or the like on some parts of a measurement target object is not acquirable, so that the data can be acquired. A measurement device includes a light source unit that sequentially emits a plurality of beams of distance measurement light to an identical target object, based on predetermined fixed output information, a light reception unit that receives reflected light, from the target object, based on which the measurement device acquires measurement information, and an output value reducing unit and/or an input value reducing unit, the output value reducing unit reducing an output value of the light source unit, the input value reducing unit reducing an input value of the reflected light to the light reception unit.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 4, 2018
    Applicant: TOPCON CORPORATION
    Inventors: Hideki Morita, Ken'ichiro Yoshino, Yasushi Tanaka
  • Publication number: 20180182549
    Abstract: A multilayer ceramic electronic device includes a laminated body having alternately laminated internal electrode layers and dielectric layers. The dielectric layer has a thickness of 0.5 ?m or less. The internal electrode layers contain ceramic particles. A content ratio of the ceramic particles contained in the internal electrode layer is 2 to 15% by representation of cross sectional area.
    Type: Application
    Filed: December 26, 2017
    Publication date: June 28, 2018
    Applicant: TDK CORPORATION
    Inventors: Nobuyuki KOIDE, Toshihiko KANEKO, Yasushi TANAKA
  • Patent number: 9995826
    Abstract: An electronic distance meter includes an optical unit which emits light to a target object and receives the light reflected by the target object with a light receiving element, a measuring unit which calculates a length of round-trip time taken for the light to make a round trip to the target object and measures a distance to the target object according to the round-trip time of the received light, a light receiving system which receives and condenses the light reflected by the target object, and an optical guide which guides the light condensed by the light receiving element to the light receiving system, including a multi-mode graded index fiber and a multi-mode step index fiber coupled with each other.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: June 12, 2018
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Shigenori Nagano, Yasushi Tanaka, Kenichiro Yoshino
  • Patent number: 9904186
    Abstract: A layered, positively-charged electrophotographic photoreceptor, a method for manufacturing the photoreceptor and an electrophotographic apparatus using the photoreceptor are disclosed. The layered, positively-charged electrophotographic photoreceptor includes a conductive support on which is provided a sequential stack composed of a charge transport layer containing at least a first hole transport material and a first binder resin; and a charge generation layer containing at least a charge generation material, a second hole transport material, an electron transport material, and a second binder resin, wherein the charge generation layer and the charge transport layer have a total amount of residual solvents that is 50 ?g/cm2 or less. The photoreceptor is highly sensitive, highly durable, and has excellent image qualities including low image defects from cracks generated due to image memory or contact contamination.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: February 27, 2018
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Seizo Kitagawa, Yasushi Tanaka, Shinjiro Suzuki, Hiroshi Emori, Kazuki Nebashi
  • Patent number: 9644247
    Abstract: A method for manufacturing a high strength press-formed member includes preparing a steel sheet having the composition including by mass %: C: 0.12% to 0.69%, Si: 3.0% or less, Mn: 0.5% to 3.0%, P: 0.1% or less, S: 0.07% or less, Al: 3.0% or less, N: 0.010% or less, Si+Al: at least 0.7%, and remainder as Fe and incidental impurities, heating the steel sheet to a temperature of 750° C. to 1000° C. and retaining the steel sheet in that state for 5 seconds to 1000 seconds; subjecting the steel sheet to hot press-forming at a temperature of 350° C. to 900° C.; cooling the steel sheet to a temperature of 50° C. to 350° C.; heating the steel sheet to a temperature in a temperature region of 350° C. to 490° C.; and retaining the steel sheet at temperature in the temperature region for 5 seconds to 1000 seconds.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: May 9, 2017
    Assignee: JFE Steel Corporation
    Inventors: Hiroshi Matsuda, Yoshimasa Funakawa, Yasushi Tanaka
  • Publication number: 20160320473
    Abstract: The invention provides a three-dimensional surveying instrument, which comprises a light emitter for emitting a distance measuring light, a light projecting optical unit for irradiating a distance measuring light from the light emitter along a distance measuring optical axis, a light receiving optical unit for receiving a reflection light from an object to be measured, a photodetection element for converting the reflection light as focused at the light receiving optical unit to an electric signal, a scanning unit for scanning a distance measuring light with respect to the object to be measured provided on a frame unit, angle detecting units for detecting an irradiating direction of the distance measuring light as scanned by the scanning unit, a vibration detecting unit for detecting vibration amount of the frame unit, and a control arithmetic unit having a storage unit where a threshold value is stored, wherein the control arithmetic unit controls so that the number of rotations of the scanning unit is gradua
    Type: Application
    Filed: April 13, 2016
    Publication date: November 3, 2016
    Inventors: Hideyuki Matsumoto, Yasushi Tanaka, Shoji Hayashi, Takaaki Saito
  • Patent number: 9284618
    Abstract: A high strength hot-rolled steel sheet with a tensile strength of not less than 590 MPa which exhibits excellent bake hardenability and stretch-flangeability has a chemical composition including, in terms of mass %, C at 0.040 to 0.10%, Si at not more than 0.3%, Mn at 1.7 to 2.5%, P at not more than 0.030%, S at not more than 0.005%, Al at not more than 0.1% and N at 0.006 to 0.025%, and microstructure wherein a bainite phase represents not less than 60%, the total of a ferrite phase and a pearlite phase represents not more than 10%, and the bainite phase includes grains among which cementite grains have been precipitated at not less than 1.4×104 grains/mm2 and the cementite grains have an average grain diameter of not more than 1.5 ?m.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: March 15, 2016
    Assignee: JFE Steel Corporation
    Inventors: Noriaki Kohsaka, Kazuhiro Seto, Hidetaka Kawabe, Yasushi Tanaka
  • Publication number: 20150378021
    Abstract: An electronic distance meter includes an optical unit which emits light to a target object and receives the light reflected by the target object with a light receiving element, a measuring unit which calculates a length of round-trip time taken for the light to make a round trip to the target object and measures a distance to the target object according to the round-trip time of the received light, a light receiving system which receives and condenses the light reflected by the target object, and an optical guide which guides the light condensed by the light receiving element to the light receiving system, including a multi-mode graded index fiber and a multi-mode step index fiber coupled with each other.
    Type: Application
    Filed: June 23, 2015
    Publication date: December 31, 2015
    Inventors: Shigenori Nagano, Yasushi Tanaka, Kenichiro Yoshino
  • Patent number: 9200352
    Abstract: A high strength galvanized steel sheet with excellent appearance that does not have non-uniformity of coating or coating defects or allow linear defects to occur after press forming includes a steel sheet having a ferrite single-phase structure and having a composition containing 0.0005% to 0.0040% by mass of C; 0.1% to 1.0% by mass of Si; 1.0% to 2.5% by mass of Mn; 0.01% to 0.20% by mass of P; 0.015% by mass of less of S; 0.01% to 0.10% by mass of Al; 0.0005% to 0.0070% by mass of N; 0.010% to 0.080% by mass of Ti; 0.0005% to 0.0020% by mass of B; 0.05% to 0.50% by mass of Cu; 0.03% to 0.50% by mass of Ni; and the balance of Fe and incidental impurities.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: December 1, 2015
    Assignee: JFE Steel Corporation
    Inventors: Hayato Saito, Hiromi Yoshida, Takeshi Yokota, Yasushi Tanaka
  • Patent number: 9200343
    Abstract: A high strength steel sheet has tensile strength of at least 1470 MPa and (tensile strength ×total elongation) of at least 29000 MPa·% with a composition including, by mass %, C.: 0.30% to 0.73%, Si: 3.0% or less, Al: 3.0% or less, Si+Al: at least 0.7%, Cr: 0.2% to 8.0%, Mn: 10.0% or less, Cr+Mn: at least 1.0%, P: 0.1% or less, S: 0.07% or less, N: 0.010% or less, and remainder as Fe and incidental impurities; and processing the steel sheet such that microstructure satisfies area ratio of martensite with respect to the microstructure of 15% to 90%; content of retained austenite of 10% to 50%; at least 50% of the martensite is constituted of tempered martensite and area ratio of the tempered martensite with respect to the microstructure is at least 10%; and area ratio of polygonal ferrite with respect to the microstructure is 10% or less.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: December 1, 2015
    Assignee: JFE Steel Corporation
    Inventors: Hiroshi Matsuda, Yoshimasa Funakawa, Yasushi Tanaka
  • Patent number: 9121087
    Abstract: A high-strength steel sheet has good ductility and stretch-flangeability and has a tensile strength (TS) of 980 MPa or more. The steel sheet contains 0.17%-0.73% C, 3.0% or less Si, 0.5%-3.0% Mn, 0.1% or less P, 0.07% or less S, 3.0% or less Al, and 0.010% or less N, in which Si+Al is 0.7% or more.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: September 1, 2015
    Assignee: JFE Steel Corporation
    Inventors: Hiroshi Matsuda, Yoshimasa Funakawa, Yasushi Tanaka
  • Patent number: 9053973
    Abstract: A semiconductor device includes a semiconductor substrate, an interlayer insulation film, multiple wiring layers, a first hard film, and an electrical pad. The semiconductor substrate has a semiconductor element. The interlayer insulation film is disposed above the semiconductor substrate. The multiple wiring layers are disposed within the interlayer insulation film. The first hard film is disposed above the interlayer insulation film, and the first hard film is harder than the interlayer insulation film. The electrical pad is disposed above the first hard film, and the electrical pad is used for an external connection. The electrical pad includes a lower layer pad, the upper layer pad, and a second hard film.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: June 9, 2015
    Assignee: DENSO CORPORATION
    Inventors: Kouichi Sawada, Yasushi Tanaka
  • Patent number: 8992697
    Abstract: A high strength press-formed member includes a steel sheet constituting the member including a composition including by mass %, C: 0.12% to 0.69%, Si: 3.0% or less, Mn: 0.5% to 3.0%, P: 0.1% or less, S: 0.07% or less, Al: 3.0% or less, N: 0.010% or less, Si+Al: at least 0.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: March 31, 2015
    Assignee: JFE Steel Corporation
    Inventors: Hiroshi Matsuda, Yoshimasa Funakawa, Yasushi Tanaka
  • Patent number: 8909100
    Abstract: An electrophotographic photoreceptor apparatus is provided and a method of manufacturing such a photoreceptor. The electrophotographic photoreceptor includes a cylindrical substrate. A photosensitive layer is formed on the cylindrical substrate. The photoreceptor has first surface corrugations with a pitch of 0.4 to 0.6 mm in an axial direction of the photoreceptor. Each of the first surface corrugations has a depth of 3.0 to 5.0 ?m.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: December 9, 2014
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Yuki Takahashi, Yasushi Tanaka
  • Patent number: 8840834
    Abstract: An ultra-high strength steel sheet has a tensile strength of 1400 MPa or higher that can achieve both high strength and good formability and an advantageous method for manufacturing the steel sheet and includes a composition including, on a mass basis C: 0.12% or more and 0.50% or less; Si: 2.0% or less; Mn: 1.0% or more and 5.0% or less; P: 0.1% or less; S: 0.07% or less; Al: 1.0% or less; and N: 0.008% or less, with the balance Fe and incidental impurities. The steel microstructure includes, on an area ratio basis, 80% or more of autotempered martensite, less than 5% of ferrite, 10% or less of bainite, and 5% or less of retained austenite; and the mean number of precipitated iron-based carbide grains each having a size of 5 nm or more and 0.5 ?m or less and included in the autotempered martensite is 5×104 or more per 1 mm2.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: September 23, 2014
    Assignee: JFE Steel Coporation
    Inventors: Hiroshi Matsuda, Reiko Mizuno, Yoshimasa Funakawa, Yasushi Tanaka
  • Publication number: 20140199619
    Abstract: A layered, positively-charged electrophotographic photoreceptor, a method for manufacturing the photoreceptor and an electrophotographic apparatus using the photoreceptor are disclosed. The layered, positively-charged electrophotographic photoreceptor includes a conductive support on which is provided a sequential stack composed of a charge transport layer containing at least a first hole transport material and a first binder resin; and a charge generation layer containing at least a charge generation material, a second hole transport material, an electron transport material, and a second binder resin, wherein the charge generation layer and the charge transport layer have a total amount of residual solvents that is 50 ?g/cm2 or less. The photoreceptor is highly sensitive, highly durable, and has excellent image qualities including low image defects from cracks generated due to image memory or contact contamination.
    Type: Application
    Filed: August 5, 2011
    Publication date: July 17, 2014
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Seizo Kitagawa, Yasushi Tanaka, Shinjiro Suzuki, Hiroshi Emori, Kazuki Nebashi
  • Publication number: 20140191421
    Abstract: A semiconductor device includes a semiconductor substrate, an interlayer insulation film, multiple wiring layers, a first hard film, and an electrical pad. The semiconductor substrate has a semiconductor element. The interlayer insulation film is disposed above the semiconductor substrate. The multiple wiring layers are disposed within the interlayer insulation film. The first hard film is disposed above the interlayer insulation film, and the first hard film is harder than the interlayer insulation film. The electrical pad is disposed above the first hard film, and the electrical pad is used for an external connection. The electrical pad includes a lower layer pad, the upper layer pad, and a second hard film.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 10, 2014
    Applicant: DENSO CORPORATION
    Inventors: Kouichi SAWADA, Yasushi TANAKA
  • Patent number: 8741240
    Abstract: The selective reduction-type catalyst effectively purifies nitrogen oxides contained in exhaust gas from a lean-burn engine such as a boiler, a gas turbine or a lean-burn engine, a diesel engine, even under high SV, as well as having small pressure loss, by supplying by spraying urea water or ammonia water, as a reducing component, to the selective reduction-type catalyst; and an exhaust gas purification apparatus along with an exhaust gas purification method using the same. The selective reduction-type catalyst for selectively reducing a nitrogen oxide by adding urea or ammonia as a reducing agent of the nitrogen oxide to exhaust gas discharged from a lean-burn engine, characterized by coating a catalyst layer including zeolite containing at least an iron element, and a composite oxide of silica, tungsten oxide, ceria and zirconia, as denitration components, at the surface of a monolithic structure-type substrate.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: June 3, 2014
    Assignee: N.E. Chemcat Corporation
    Inventors: Takashi Hihara, Tomoaki Ito, Yasushi Tanaka, Makoto Nagata
  • Publication number: 20140096876
    Abstract: A method for manufacturing a high strength press-formed member includes preparing a steel sheet having the composition including by mass %: C: 0.12% to 0.69%, Si: 3.0% or less, Mn: 0.5% to 3.0%, P: 0.1% or less, S: 0.07% or less, Al: 3.0% or less, N: 0.010% or less, Si+Al: at least 0.7%, and remainder as Fe and incidental impurities, heating the steel sheet to a temperature of 750° C. to 1000° C. and retaining the steel sheet in that state for 5 seconds to 1000 seconds; subjecting the steel sheet to hot press-forming at a temperature of 350° C. to 900° C.; cooling the steel sheet to a temperature of 50° C. to 350° C.; heating the steel sheet to a temperature in a temperature region of 350° C. to 490° C.; and retaining the steel sheet at temperature in the temperature region for 5 seconds to 1000 seconds.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 10, 2014
    Applicant: JFE Steel Corporation
    Inventors: Hiroshi Matsuda, Yoshimasa Funakawa, Yasushi Tanaka
  • Patent number: 8535458
    Abstract: A steel sheet contains, on a mass percent basis, 0.03%-0.12% C, 0.5% or less Si, 0.8%-1.8% Mn, 0.030% or less P, 0.01% or less S, 0.005%-0.1% Al, 0.01% or less N, 0.035%-0.100% Ti, and the balance being Fe and incidental impurities and has microstructures with a fraction of polygonal ferrite of 80% or more, the polygonal ferrite having an average grain size of 5 to 10 ?m. The amount of Ti present in a precipitate having a size of less than 20 nm is 70% or more of the value of Ti* calculated using expression (1): Ti*=[Ti]?48×[N]/14??(1) where [Ti] and [N] represent a Ti content (percent by mass) and a N content percent by mass), respectively, of the steel sheet.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: September 17, 2013
    Assignee: JFE Steel Corporation
    Inventors: Noriaki Kohsaka, Kazuhiro Seto, Reiko Sugihara, Masahide Watabe, Yasushi Tanaka