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).
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Patent number: 11967648Abstract: The impurity concentration in the oxide semiconductor film is reduced, and a highly reliability can be obtained.Type: GrantFiled: October 17, 2022Date of Patent: April 23, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Masahiro Watanabe, Mitsuo Mashiyama, Kenichi Okazaki, Motoki Nakashima, Hideyuki Kishida
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Patent number: 11959165Abstract: 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: GrantFiled: April 13, 2021Date of Patent: April 16, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Tetsunori Maruyama, Yuki Imoto, Hitomi Sato, Masahiro Watanabe, Mitsuo Mashiyama, Kenichi Okazaki, Motoki Nakashima, Takashi Shimazu
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Publication number: 20240093324Abstract: 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: ApplicationFiled: January 7, 2022Publication date: March 21, 2024Inventors: Taizo MAKINO, Masahiro YAMAZAKI
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Publication number: 20240079499Abstract: 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: ApplicationFiled: October 19, 2023Publication date: March 7, 2024Inventors: Masahiro TAKAHASHI, Kengo AKIMOTO, Shunpei YAMAZAKI
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Publication number: 20240004380Abstract: 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: ApplicationFiled: August 24, 2021Publication date: January 4, 2024Inventors: Masayoshi OJIMA, Masahiro YAMAZAKI, Kenji SATO, Yutaka KOBAYASHI, Hideyuki GOTOU
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Publication number: 20230400235Abstract: 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: ApplicationFiled: May 25, 2023Publication date: December 14, 2023Inventor: Masahiro YAMAZAKI
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Publication number: 20230140650Abstract: 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: ApplicationFiled: April 5, 2021Publication date: May 4, 2023Inventors: Taizo MAKINO, Masahiro YAMAZAKI
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Publication number: 20230071252Abstract: 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: ApplicationFiled: January 29, 2021Publication date: March 9, 2023Applicants: KUREHA CORPORATION, JAPAN AEROSPACE EXPLORATION AGENCYInventors: Masahiro YAMAZAKI, Kayoko ONIZAWA, Keita TAKAMURA, Eiji MIYAZAKI, Keiichi YANAGASE, Aki GOTO
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Publication number: 20230074399Abstract: 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: ApplicationFiled: November 10, 2022Publication date: March 9, 2023Applicant: TOKYO ELECTRON LIMITEDInventor: Masahiro YAMAZAKI
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Patent number: 11524321Abstract: 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: GrantFiled: July 2, 2020Date of Patent: December 13, 2022Assignee: TOKYO ELECTRON LIMITEDInventor: Masahiro Yamazaki
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Patent number: 11519785Abstract: 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: GrantFiled: July 24, 2018Date of Patent: December 6, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Masahiro Yamazaki, Katsumi Shibayama, Ryusuke Kitaura, Ryosuke Koike, Go Tanaka
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Publication number: 20220363590Abstract: 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: ApplicationFiled: July 26, 2022Publication date: November 17, 2022Applicant: AGC INC.Inventor: Masahiro YAMAZAKI
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Publication number: 20220331460Abstract: 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: ApplicationFiled: October 1, 2020Publication date: October 20, 2022Inventors: Shunsuke ABE, Kazuhiko SHIMIZU, Kayoko ONIZAWA, Masahiro YAMAZAKI, Aki GOTO, Keiichi YANAGASE, Eiji MIYAZAKI, Yusuke UCHIUMI, Eri FUKUI
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Patent number: 11477508Abstract: 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: GrantFiled: September 24, 2020Date of Patent: October 18, 2022Assignee: MAXELL, LTD.Inventors: Takashi Matsubara, Mayumi Nakade, Masahiro Yamazaki, Hiroyuki Higaki
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Publication number: 20220321938Abstract: 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: ApplicationFiled: June 23, 2022Publication date: October 6, 2022Inventors: Takashi MATSUBARA, Mayumi NAKADE, Masahiro YAMAZAKI, Hiroyuki HIGAKI
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Patent number: 11453925Abstract: 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: GrantFiled: July 28, 2017Date of Patent: September 27, 2022Assignee: Nippon Steel CorporationInventors: Takeshi Miki, Yuji Arai, Yusuke Mihara, Yohsuke Uchida, Masahiro Yamazaki, Masayuki Yamamoto
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Publication number: 20220136469Abstract: 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: ApplicationFiled: February 13, 2020Publication date: May 5, 2022Inventors: Taizo MAKINO, Masahiro YAMAZAKI, Tomohiko OMURA, Yuji ARAI, Osamu ENDO, Naoki SERIZAWA, Tatsuya MASUDA
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Publication number: 20220112572Abstract: 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: ApplicationFiled: February 13, 2020Publication date: April 14, 2022Inventors: Taizo MAKINO, Masahiro YAMAZAKI, Yuji ARAI, Osamu ENDO, Naoki SERIZAWA, Tatsuya MASUDA
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Patent number: 11255730Abstract: 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: GrantFiled: November 30, 2017Date of Patent: February 22, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Masahiro Yamazaki, Katsumi Shibayama, Ryusuke Kitaura
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Publication number: 20220021924Abstract: 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: ApplicationFiled: July 27, 2021Publication date: January 20, 2022Inventors: Takashi Matsubara, Mayumi Nakade, Masahiro Yamazaki, Hiroyuki Higaki