Patents by Inventor Masahiro Yamazaki

Masahiro Yamazaki 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: 11967648
    Abstract: The impurity concentration in the oxide semiconductor film is reduced, and a highly reliability can be obtained.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: April 23, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Masahiro Watanabe, Mitsuo Mashiyama, Kenichi Okazaki, Motoki Nakashima, Hideyuki Kishida
  • Patent number: 11959165
    Abstract: There have been cases where transistors formed using oxide semiconductors are inferior in reliability to transistors formed using amorphous silicon. Thus, in the present invention, a semiconductor device including a highly reliable transistor formed using an oxide semiconductor is manufactured. An oxide semiconductor film is deposited by a sputtering method, using a sputtering target including an oxide semiconductor having crystallinity, and in which the direction of the c-axis of a crystal is parallel to a normal vector of the top surface of the oxide semiconductor. The target is formed by mixing raw materials so that its composition ratio can obtain a crystal structure.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: April 16, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Tetsunori Maruyama, Yuki Imoto, Hitomi Sato, Masahiro Watanabe, Mitsuo Mashiyama, Kenichi Okazaki, Motoki Nakashima, Takashi Shimazu
  • Publication number: 20240093324
    Abstract: A steel pipe for pressure piping subjected to autofrettage has an average hardness at its outer layer region of 1.20 times or more of an average hardness at its inner layer region. When an outer diameter is D, and an inner diameter is d, a measured value of a residual stress at an outer surface is denoted by ?o1, a measured value of a residual stress at an outer surface after halving is denoted by ?o2, and a measured value of a residual stress at an inner surface after the halving is denoted by ?i2, an estimated value ?i1 of a residual stress at the inner surface of the steel pipe is determined by [?i1=(??i2)/(A×(t/T)2?1)], [t/T=((?o2??o1)/(A×(?o2??o1)?C×?i2))1/2], [A=3.9829× exp(0.1071×(D/d)2)], and [C=?3.3966×exp(0.0452×(D/d)2)] is ?150 MPa or less.
    Type: Application
    Filed: January 7, 2022
    Publication date: March 21, 2024
    Inventors: Taizo MAKINO, Masahiro YAMAZAKI
  • Publication number: 20240079499
    Abstract: To provide an oxide semiconductor film having stable electric conductivity and a highly reliable semiconductor device having stable electric characteristics by using the oxide semiconductor film. The oxide semiconductor film contains indium (In), gallium (Ga), and zinc (Zn) and includes a c-axis-aligned crystalline region aligned in the direction parallel to a normal vector of a surface where the oxide semiconductor film is formed. Further, the composition of the c-axis-aligned crystalline region is represented by In1+?Ga1??O3(ZnO)m (0<?<1 and m=1 to 3 are satisfied), and the composition of the entire oxide semiconductor film including the c-axis-aligned crystalline region is represented by InxGayO3(ZnO)m (0<x<2, 0<y<2, and m=1 to 3 are satisfied).
    Type: Application
    Filed: October 19, 2023
    Publication date: March 7, 2024
    Inventors: Masahiro TAKAHASHI, Kengo AKIMOTO, Shunpei YAMAZAKI
  • Publication number: 20240004380
    Abstract: A data analysis unit includes a validity determination unit that calculates a determination factor for determining the validity of a data analysis process to determine the validity of the data analysis process, and displays the validity determination result on a display device.
    Type: Application
    Filed: August 24, 2021
    Publication date: January 4, 2024
    Inventors: Masayoshi OJIMA, Masahiro YAMAZAKI, Kenji SATO, Yutaka KOBAYASHI, Hideyuki GOTOU
  • Publication number: 20230400235
    Abstract: A gas engine air-conditioning device includes an outdoor unit having a gas engine, a first cooling water circulation flow passage and a second cooling water circulation flow passage, a first radiator, a second radiator, a water passage switch valve, a gas engine direct current power generator, a motor, a compressor, a condenser, and first fan, and a second fan, and is configured such that during heating, cooling water is circulated through the first cooling water circulation flow passage by a water passage switch valve, high-temperature passing air is sent from the first radiator, which reaches a high temperature, to the condenser by the first fan, and a refrigerant compressed by the compressor is circulated to an indoor unit, and during cooling, the cooling water is caused to flow through the second cooling water circulation flow passage by the water passage switch valve.
    Type: Application
    Filed: May 25, 2023
    Publication date: December 14, 2023
    Inventor: Masahiro YAMAZAKI
  • Publication number: 20230140650
    Abstract: A steel pipe for pressure piping can be subjected to autofrettage. When an outer diameter of the pipe is D, an inner diameter is d, and a yield stress is ?y, and when a measured value of an outer surface residual stress is ?o1, a measured value of an outer surface residual stress after halving is ?o2, and a measured value of an inner surface residual stress after the halving is ?i2, D/d is 1.2 or more, an estimated value ?i1 of inner surface residual stress is [?i1=(??i2)/(A×(t/T)2?1)], where [t/T=((?o2??o1)/(A×(?o2??o1)?C×?i2))1/2], [A=3.9829×exp(0.1071×(D/d)2)], and [C=?3.3966×Exp(0.0452×(D/d)2)] satisfies [1.1×F×?y??i1?0.8×F×?y], and (F=(0.3×(3?D/d)2?1) when 1.2?D/d?3.0, and F=?1 when D/d>3.0).
    Type: Application
    Filed: April 5, 2021
    Publication date: May 4, 2023
    Inventors: Taizo MAKINO, Masahiro YAMAZAKI
  • Publication number: 20230071252
    Abstract: An antibacterial molded article that can further increase antibacterial performance. The present invention for achieving the above object is related to an antibacterial molded article including a resin molded article. The resin molded article has an antibacterial area on a surface of the resin molded article, the antibacterial area having a prominent protrusion ratio of 3% or greater and 25% or less. Alternatively, the resin molded article has an antibacterial area on a surface of the resin molded article, the antibacterial area having: a maximum height of profile defined by JIS B 0601 (2013) of 100 nm or greater and less than 500 nm, and a plurality of capture protrusions having a height of not less than half the maximum height of profile (Rz), in which an average distance between the plurality of capture protrusions is 1.5 ?m or greater and 7 ?m or less.
    Type: Application
    Filed: January 29, 2021
    Publication date: March 9, 2023
    Applicants: KUREHA CORPORATION, JAPAN AEROSPACE EXPLORATION AGENCY
    Inventors: Masahiro YAMAZAKI, Kayoko ONIZAWA, Keita TAKAMURA, Eiji MIYAZAKI, Keiichi YANAGASE, Aki GOTO
  • Publication number: 20230074399
    Abstract: A cleaning method is provided. In the cleaning method, residues of elements of a group for a common semiconductor material in a chamber are removed with plasma of a halogen-containing gas. Residues of metal elements of groups 12 and 13 and groups 14 and 15 in the chamber are removed with plasma of a hydrocarbon-containing gas. A C-containing material in the chamber is removed with plasma of an O-containing gas. Further, the removing with the plasma of the halogen-containing gas, the removing with the plasma of the hydrocarbon-containing gas, and the removing with the plasma of the O-containing gas are performed in that order or the removing with the plasma of the hydrocarbon-containing gas, the removing with the plasma of the O-containing gas, and the removing with the plasma of the halogen-containing gas are performed in that order X times where X?1.
    Type: Application
    Filed: November 10, 2022
    Publication date: March 9, 2023
    Applicant: TOKYO ELECTRON LIMITED
    Inventor: Masahiro YAMAZAKI
  • Patent number: 11524321
    Abstract: A cleaning method is provided. In the cleaning method, residues of elements of a group for a common semiconductor material in a chamber are removed with plasma of a halogen-containing gas. Residues of metal elements of groups 12 and 13 and groups 14 and 15 in the chamber are removed with plasma of a hydrocarbon-containing gas. A C-containing material in the chamber is removed with plasma of an O-containing gas. Further, the removing with the plasma of the halogen-containing gas, the removing with the plasma of the hydrocarbon-containing gas, and the removing with the plasma of the O-containing gas are performed in that order or the removing with the plasma of the hydrocarbon-containing gas, the removing with the plasma of the O-containing gas, and the removing with the plasma of the halogen-containing gas are performed in that order X times where X?1.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: December 13, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventor: Masahiro Yamazaki
  • Patent number: 11519785
    Abstract: A light detector includes a substrate, a membrane disposed on a surface of the substrate, a first and a second electrode post supporting the membrane. The first electrode post includes a first main body portion having a tubular shape spreading from a first electrode pad toward a side opposite to the substrate, and a first flange portion provided in an end portion at the side opposite to the substrate in the first main body portion. The first flange portion is provided with a first sloped surface inclined so as to approach the substrate as it goes away from the first main body portion. A first wiring layer reaches an inner surface of the first main body portion through the first sloped surface. The second electrode post and the second wiring layer are formed similarly to the first electrode post and the first wiring layer.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: December 6, 2022
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Masahiro Yamazaki, Katsumi Shibayama, Ryusuke Kitaura, Ryosuke Koike, Go Tanaka
  • Publication number: 20220363590
    Abstract: The present invention relates to a glass composition including: Li2O; and, as represented by mol % based on oxides, from 60% to 67% of SiO; from 20% to 29% of B2O3; from 3% to 9% of CaO; and from 3% to 6% of Al2O3, in which a molar ratio (Li2O:Na2O:K2O) among a Li2O content, a Na2O content, and a K2O content is 1:(0-1.9):(0-0.9).
    Type: Application
    Filed: July 26, 2022
    Publication date: November 17, 2022
    Applicant: AGC INC.
    Inventor: Masahiro YAMAZAKI
  • Publication number: 20220331460
    Abstract: The present invention is to provide an antibacterial molded article that can increase options for the material and shape of the molded article, and a method for manufacturing the same. The object is achieved by an antibacterial molded article containing a plastic molded article, the plastic molded article having a rough region having an arithmetic average roughness Ra of a roughness curve in accordance with JIS B 0601 (2013) of 0.14 ?m or greater and 0.72 ?m or less provided on a surface with which bacteria can come into contact.
    Type: Application
    Filed: October 1, 2020
    Publication date: October 20, 2022
    Inventors: Shunsuke ABE, Kazuhiko SHIMIZU, Kayoko ONIZAWA, Masahiro YAMAZAKI, Aki GOTO, Keiichi YANAGASE, Eiji MIYAZAKI, Yusuke UCHIUMI, Eri FUKUI
  • Patent number: 11477508
    Abstract: A portable terminal includes a receiving unit which receives content information, an external device communication unit which conducts communication with an external information device, a display unit which displays the content information received by the receiving unit, an acquiring unit which acquires identification information identifying the content information displayed by the display unit, an operation unit which receives an operation indication from a user, and a control unit which conducts control such that if a transmission indication of the identification information is received by the operation unit while the content information is being displayed, the identification information acquired by the acquiring unit is transmitted to the external information device and the display of the content information by the display unit is terminated.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: October 18, 2022
    Assignee: MAXELL, LTD.
    Inventors: Takashi Matsubara, Mayumi Nakade, Masahiro Yamazaki, Hiroyuki Higaki
  • Publication number: 20220321938
    Abstract: A portable terminal includes a receiving unit which receives content information, an external device communication unit which conducts communication with an external information device, a display unit which displays the content information received by the receiving unit, an acquiring unit which acquires identification information identifying the content information displayed by the display unit, an operation unit which receives an operation indication from a user, and a control unit which conducts control such that if a transmission indication of the identification information is received by the operation unit while the content information is being displayed, the identification information acquired by the acquiring unit is transmitted to the external information device and the display of the content information by the display unit is terminated.
    Type: Application
    Filed: June 23, 2022
    Publication date: October 6, 2022
    Inventors: Takashi MATSUBARA, Mayumi NAKADE, Masahiro YAMAZAKI, Hiroyuki HIGAKI
  • Patent number: 11453925
    Abstract: A seamless steel pipe is provided that has a chemical composition which consists of, by mass %, C: 0.10 to 0.20%, Si: 0.05 to 1.0%, Mn: 0.05 to 1.2%, P?0.025%, S?0.005%, Cu?0.20%, N?0.007%, Ni: 0.20 to 0.50%, Cr: 0.30% or more and less than 0.50%, Mo: 0.30 to 0.50%, Nb: 0.01 to 0.05%, Al: 0.001 to 0.10%, B: 0.0005 to 0.0020%, Ti: 0.003 to 0.050%, V: 0.01 to 0.20%, a total of any one or more elements among Ca, Mg and REM: 0 to 0.025%, and the balance: Fe and impurities, and for which Pcm (=C+(Si/30)+(Mn/20)+(Cu/20)+(Ni/60)+(Cr/20)+(Mo/15)+(V/10)+5B)?0.30. The steel micro-structure includes, in area %, tempered martensite ?90%. The tensile strength is 980 MPa or more, and a Charpy impact value at ?40° C. using a 2 mm V-notch test specimen is 75 J/cm2 or more.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: September 27, 2022
    Assignee: Nippon Steel Corporation
    Inventors: Takeshi Miki, Yuji Arai, Yusuke Mihara, Yohsuke Uchida, Masahiro Yamazaki, Masayuki Yamamoto
  • Publication number: 20220136469
    Abstract: A steel pipe for a fuel injection pipe has a chemical composition consisting of, by mass %: C: 0.17 to 0.27%, Si: 0.05 to 0.40%, Mn: 0.30 to 2.00%, P: 0.020% or less, S: 0.0100% or less, O: 0.0040% or less, Ca: 0.0010% or less, Al: 0.005 to 0.060%, N: 0.0020 to 0.0080%, Ti: 0.005 to 0.015%, Nb: 0.015 to 0.045%, Cr: 0 to 1.00%, Mo: 0 to 1.00%, Cu: 0 to 0.50%, Ni: 0 to 0.50%, V: 0 to 0.15%, and the balance: Fe and impurities. The metal micro-structure consists substantially of tempered martensite, or tempered martensite and tempered bainite. The hardness is within the range of 350 to 460 HV1. A lattice spacing of a (211) diffraction plane measured by CoK? characteristic X-ray diffraction is 1.1716 ? or less, and a half-value width of the (211) diffraction plane is 1.200° or less. The number density of cementite having a diameter of 50 nm or more is 20/?m2 or less.
    Type: Application
    Filed: February 13, 2020
    Publication date: May 5, 2022
    Inventors: Taizo MAKINO, Masahiro YAMAZAKI, Tomohiko OMURA, Yuji ARAI, Osamu ENDO, Naoki SERIZAWA, Tatsuya MASUDA
  • Publication number: 20220112572
    Abstract: A steel pipe for a fuel injection pipe has a chemical composition consisting of, by mass %: C: 0.17 to 0.27%, Si: 0.05 to 0.40%, Mn: 0.30 to 2.00%, P: 0.020% or less, S: 0.0100% or less, O: 0.0040% or less, Ca: 0.0010% or less, Al: 0.005 to 0.060%, N: 0.0020 to 0.0080%, Ti: 0.005 to 0.015%, Nb: 0.015 to 0.045%, Cr: 0 to 1.00%, Mo: 0 to 1.00%, Cu: 0 to 0.50%, Ni: 0 to 0.50%, V: 0 to 0.15%, and the balance: Fe and impurities. The metal micro-structure consists substantially of tempered martensite, or tempered martensite and tempered bainite. A prior-austenite grain size number is 9.0 or more. The hardness is within the range of 350 to 460 HV1. When a maximum value of a square root of an area of inclusions observed in a cross section perpendicular to a longitudinal direction of the steel pipe is taken as an (n=1 to 20), a maximum value amax of an is 30.0 ?m or less, and an average value aav of an is 40% or more of amax.
    Type: Application
    Filed: February 13, 2020
    Publication date: April 14, 2022
    Inventors: Taizo MAKINO, Masahiro YAMAZAKI, Yuji ARAI, Osamu ENDO, Naoki SERIZAWA, Tatsuya MASUDA
  • Patent number: 11255730
    Abstract: A light detector includes: a substrate; and a membrane which is supported on a surface of the substrate so that a space is formed between the surface of the substrate and the membrane, in which the membrane includes a first wiring layer and a second wiring layer which are opposite each other with a gap extending along a line having a curved portion interposed therebetween and a resistance layer which is electrically connected to each of the first wiring layer and the second wiring layer and has an electric resistance depending on a temperature, and in which a first edge portion at the side of the line in the first wiring layer and a second edge portion at the side of the line in the second wiring layer respectively continuously extend.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: February 22, 2022
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Masahiro Yamazaki, Katsumi Shibayama, Ryusuke Kitaura
  • Publication number: 20220021924
    Abstract: A portable terminal includes a receiving unit which receives content information, an external device communication unit which conducts communication with an external information device, a display unit which displays the content information received by the receiving unit, an acquiring unit which acquires identification information identifying the content information displayed by the display unit, an operation unit which receives an operation indication from a user, and a control unit which conducts control such that if a transmission indication of the identification information is received by the operation unit while the content information is being displayed, the identification information acquired by the acquiring unit is transmitted to the external information device and the display of the content information by the display unit is terminated.
    Type: Application
    Filed: July 27, 2021
    Publication date: January 20, 2022
    Inventors: Takashi Matsubara, Mayumi Nakade, Masahiro Yamazaki, Hiroyuki Higaki