Patents by Inventor Masayuki Kamata
Masayuki Kamata 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: 11875982Abstract: Techniques and systems for multi-modal ionization for mass spectrometry are provided. In some embodiments, a method may comprise: receiving an analyte; ionizing some molecules of the analyte using a first ionization method to produce first ions; ionizing other molecules of the analyte using a second ionization method to produce second ions; and providing the first and second ions to a mass analyzer.Type: GrantFiled: February 17, 2023Date of Patent: January 16, 2024Assignee: BaySpec, Inc.Inventors: Nam Duc Lai, Krisztian Gabor Torma, Ming Chai, William Allen Escobar, Xiaoguang Wu, Masayuki Kamata, Wei Yang Terziyan
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Publication number: 20230343496Abstract: An anisotropic rare earth sintered magnet represented by the formula (R1-aZra)x(Fe1-bCOb)100-x-y(M11-cM2c)y. R is Sm and at least one element selected from rare earth elements, M1 is at least one element selected from the group consisting of V, Cr, Mn, Ni, Cu, Zn, Ga, Al, and Si, M2 is at least one element selected from the group consisting of Ti, Nb, Mo, Hf, Ta, and W, and x, y, a, b, and c each satisfy 7?x?15 at %, 4?y?20 at %, 0?a?0.2, 0?b?0.5, and 0?c?0.9. The magnet includes 80% by volume or more of a main phase composed of a compound of a ThMn12 type crystal, the main phase having an average crystal grain size of 1 ?m or more, and an intergranular grain boundary phase being formed between adjacent main phase grains.Type: ApplicationFiled: March 18, 2021Publication date: October 26, 2023Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Tadao NOMURA, Kazuki OTSUKA, Masayuki KAMATA
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Publication number: 20230207301Abstract: Techniques and systems for multi-modal ionization for mass spectrometry are provided. In some embodiments, a method may comprise: receiving an analyte; ionizing some molecules of the analyte using a first ionization method to produce first ions; ionizing other molecules of the analyte using a second ionization method to produce second ions; and providing the first and second ions to a mass analyzer.Type: ApplicationFiled: February 17, 2023Publication date: June 29, 2023Inventors: Nam Duc Lai, Krisztian Gabor Torma, Ming Chai, William Allen Escobar, Xiaoguang Wu, Masayuki Kamata, Wei Yang Terziyan
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Publication number: 20230148121Abstract: The invention provides an anisotropic rare earth sintered magnet having an Nd2Fe14B-type compound crystal as a main phase and containing Ce, and exhibiting good magnetic characteristics, and a method for producing the same. The anisotropic rare earth sintered magnet has a composition of a formula Rx(Fe1?aCoa)100?x?y?zByMz (where R is two or more kinds of elements selected from rare earth elements and indispensably including Nd and Ce), in which the main phase is formed of an Nd2Fe14B-type compound crystal, main phase grains such that the Ce/R? ratio in the center part of the grains (where R? is one or more kinds of elements selected from rare earth elements and indispensably including Nd) is lower than the Ce/R? ratio in the outer shell part thereof exist, and a Ce-containing R?-rich phase and a Ce-containing R?(Fe,Co)2 phase exist in the grain boundary part. The production method is for producing the anisotropic rare earth sintered magnet.Type: ApplicationFiled: October 28, 2022Publication date: May 11, 2023Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Tadao NOMURA, Masayuki KAMATA
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Publication number: 20230144451Abstract: An anisotropic rare earth sintered magnet represented by the formula (R1-aZra)x(Fe1-b COb)100-x-y(M11-cM2c)y where R is at least one element selected from rare earth elements and Sm is essential; M1 is at least one of V, Cr, Mn, Ni, Cu, Zn, Ga, Al, and Si; M2 is at least one of Ti, Nb, Mo, Hf, Ta, and W; and x, y, a, b, and c each satisfy certain conditions. The anisotropic rare earth sintered magnet includes 80% by volume or more of a main phase composed of a compound of a ThMn12 type crystal, the main phase having an average crystal grain size of 1 ?m or more, and containing an R-rich phase and an R(Fe,Co)2 phase in a grain boundary portion. A method for producing the anisotropic rare earth sintered magnet is also described.Type: ApplicationFiled: March 18, 2021Publication date: May 11, 2023Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Tadao NOMURA, Kazuki OTSUKA, Masayuki KAMATA
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Patent number: 11621155Abstract: Techniques and systems for multi-modal ionization for mass spectrometry are provided. In some embodiments, a method may comprise: receiving an analyte; ionizing some molecules of the analyte using a first ionization method to produce first ions; ionizing other molecules of the analyte using a second ionization method to produce second ions; and providing the first and second ions to a mass analyzer.Type: GrantFiled: July 29, 2021Date of Patent: April 4, 2023Assignee: BaySpec, Inc.Inventors: Nam Duc Lai, Krisztian Gabor Torma, Ming Chai, William Allen Escobar, Xiaoguang Wu, Masayuki Kamata, Wei Yang Terziyan
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Publication number: 20230035895Abstract: Techniques and systems for multi-modal ionization for mass spectrometry are provided. In some embodiments, a method may comprise: receiving an analyte; ionizing some molecules of the analyte using a first ionization method to produce first ions; ionizing other molecules of the analyte using a second ionization method to produce second ions; and providing the first and second ions to a mass analyzer.Type: ApplicationFiled: July 29, 2021Publication date: February 2, 2023Inventors: Nam Duc Lai, Krisztian Gabor Torma, Ming Chai, William Allen Escobar, Xiaoguang Wu, Masayuki Kamata, Wei Yang Terziyan
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Publication number: 20220367092Abstract: Provided are an anisotropic rare earth sintered magnet having a ThMn12-type crystal compound as a main phase and exhibits good magnetic characteristics, and a method for producing it. The anisotropic rare earth sintered magnet has a composition of a formula (R1-aZra)v(Fe1-bCob)100-v-w-x-y(M11-cM2c)wOxCy (where R is one or more kinds selected from rare earth elements and indispensably includes Sm, M1 is one or more kinds of elements selected from the group consisting of V, Cr, Mn, Ni, Cu, Zn, Ga, Al, and Si, M2 is one or more kinds of elements selected from the group consisting of Ti, Nb, Mo, Hf, Ta, and W, and v, w, x, y, a, b, and c each satisfy 7?v?15 at %, 4?w?20 at %, 0.2?x?4 at %, 0.2?y?2 at %, 0?a?0.2, 0?b?0.5, and 0?c?0.9), which contains a main phase of a ThMn12-type crystal compound in an amount of 80% by volume or more with the average crystal particle diameter of the main phase being 1 ?m or more, which contains an R oxycarbide in the grain boundary area, and which has a density of 7.Type: ApplicationFiled: April 29, 2022Publication date: November 17, 2022Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Tadao NOMURA, Kazuki OTSUKA, Masayuki KAMATA
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Patent number: 11315710Abstract: An R—Fe—B base sintered magnet is provided consisting essentially of R (which is at least two rare earth elements and essentially contains Nd and Pr), M1 which is at least two of Si, Al, Mn, Ni, Cu, Zn, Ga, Ge, Pd, Ag, Cd, In, Sn, Sb, Pt, Au, Hg, Pb, and Bi, M2 which is at least one of Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, and W, boron, and the balance of Fe, and containing an intermetallic compound R2(Fe,(Co))14B as a main phase. The magnet contains an R—Fe(Co)-M1 phase as a grain boundary phase, the R—Fe(Co)-M1 phase contains A phase which is crystalline with crystallites of at least 10 nm formed at grain boundary triple junctions, and B phase which is amorphous and/or nanocrystalline with crystallites of less than 10 nm formed at intergranular grain boundaries and optionally grain boundary triple junctions.Type: GrantFiled: June 8, 2017Date of Patent: April 26, 2022Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Koichi Hirota, Tetsuya Kume, Masayuki Kamata
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Patent number: 10573438Abstract: An R—(Fe,Co)—B base sintered magnet consisting essentially of 12-17 at % of R containing Nd and Pr, 0.1-3 at % of M1 (typically Si), 0.05-0.5 at % of M2 (typically Ti), B, and the balance of Fe, and containing R2(Fe,Co)14B as a main phase has a coercivity of at least 10 kOe. The magnet contains a M2 boride phase at a grain boundary triple junction, and has a core/shell structure that the main phase is covered with a grain boundary phase. The grain boundary phase is composed of an amorphous and/or nanocrystalline R?—(Fe,Co)—M1? phase consisting essentially of 25-35 at % of R? containing Pr, 2-8 at % of M1? (typically Si), up to 8 at % of Co, and the balance of Fe. A coverage of the main phase with the R?—(Fe,Co)—M1? phase is at least 50%, and the bi-granular grain boundary phase has a width of at least 50 nm.Type: GrantFiled: November 14, 2016Date of Patent: February 25, 2020Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Koichi Hirota, Masayuki Kamata, Takahiro Hashimoto, Hajime Nakamura
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Patent number: 10410775Abstract: The invention provides an R—Fe—B sintered magnet consisting essentially of 12-17 at % of Nd, Pr and R, 0.1-3 at % of M1, 0.05-0.5 at % of M2, 4.8+2*m to 5.9+2*m at % of B, and the balance of Fe, containing R2(Fe,(Co))14B intermetallic compound as a main phase, and having a core/shell structure that the main phase is covered with grain boundary phases. The sintered magnet exhibits a coercivity of at least 10 kOe despite a low or nil content of Dy, Tb and Ho.Type: GrantFiled: March 31, 2016Date of Patent: September 10, 2019Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Koichi Hirota, Hiroaki Nagata, Tetsuya Kume, Masayuki Kamata, Hajime Nakamura
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Publication number: 20180261442Abstract: A high voltage RF power supply capable of supplying a varying amplitude RF signal at a fixed frequency to the electrodes of a mass spectrometer analyzer. The RF generator provides a high voltage, low current signal capable of changing its amplitude in response to an input drive signal. The RF generator circuitry comprises separate positive and negative driver channels interfaced to a class AB amplifier circuit. The separate positive and negative channels drive a pair of current amplifiers with the final output stage comprising an air-core step-up transformer. The RF generator achieves efficiency and stability with a minimum of electronics hardware while incorporating the use of a simplified RF feedback circuit. The RF generator may be used with a variety of mass spectrometer analyzers, particularly those of miniaturized or portable application.Type: ApplicationFiled: March 13, 2017Publication date: September 13, 2018Applicant: BaySpec, Inc.Inventors: Masayuki Kamata, William (Wei) Yang
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Publication number: 20170365384Abstract: An R—Fe—B base sintered magnet is provided consisting essentially of R (which is at least two rare earth elements and essentially contains Nd and Pr), M1 which is at least two of Si, Al, Mn, Ni, Cu, Zn, Ga, Ge, Pd, Ag, Cd, In, Sn, Sb, Pt, Au, Hg, Pb, and Bi, M2 which is at least one of Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, and W, boron, and the balance of Fe, and containing an intermetallic compound R2(Fe,(Co))14B as a main phase. The magnet contains an R—Fe(Co)-M1 phase as a grain boundary phase, the R—Fe(Co)-M1 phase contains A phase which is crystalline with crystallites of at least 10 nm formed at grain boundary triple junctions, and B phase which is amorphous and/or nanocrystalline with crystallites of less than 10 nm formed at intergranular grain boundaries and optionally grain boundary triple junctions.Type: ApplicationFiled: June 8, 2017Publication date: December 21, 2017Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Koichi Hirota, Tetsuya Kume, Masayuki Kamata
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Publication number: 20170140856Abstract: An R—(Fe,Co)—B base sintered magnet consisting essentially of 12-17 at % of R containing Nd and Pr, 0.1-3 at % of M1 (typically Si), 0.05-0.5 at % of M2 (typically Ti), B, and the balance of Fe, and containing R2(Fe,Co)14B as a main phase has a coercivity of at least 10 kOe. The magnet contains a M2 boride phase at a grain boundary triple junction, and has a core/shell structure that the main phase is covered with a grain boundary phase. The grain boundary phase is composed of an amorphous and/or nanocrystalline R?—(Fe,Co)-M1? phase consisting essentially of 25-35 at % of R? containing Pr, 2-8 at % of M1? (typically Si), up to 8 at % of Co, and the balance of Fe. A coverage of the main phase with the R?—(Fe,Co)-M1? phase is at least 50%, and the bi-granular grain boundary phase has a width of at least 50 nm.Type: ApplicationFiled: November 14, 2016Publication date: May 18, 2017Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Koichi Hirota, Masayuki Kamata, Takahiro Hashimoto, Hajime Nakamura
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Publication number: 20160293304Abstract: The invention provides an R—Fe—B sintered magnet consisting essentially of 12-17 at % of Nd, Pr and R, 0.1-3 at % of M1, 0.05-0.5 at % of M2, 4.8+2*m to 5.9+2*m at % of B, and the balance of Fe, containing R2(Fe,(Co))14B intermetallic compound as a main phase, and having a core/shell structure that the main phase is covered with grain boundary phases. The sintered magnet exhibits a coercivity of at least 10 kOe despite a low or nil content of Dy, Tb and Ho.Type: ApplicationFiled: March 31, 2016Publication date: October 6, 2016Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Koichi Hirota, Hiroaki Nagata, Tetsuya Kume, Masayuki Kamata, Hajime Nakamura
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Patent number: 6696845Abstract: In order to provide an IC tester which can measure noise measuring performance in a position where a DUT to be analyzed on an evaluation board is mounted quantitatively, a noise evaluation circuit comprises a reference resistor which generates thermal noise, a reference noise generator a summing circuit, an amplifying circuit which amplifies result of the calculation in the summing circuit, a switch, and an evaluation board having the reference resistor, the reference noise generator, the summing circuit, the amplifying circuit, and the switch thereon for evaluating the DUT to be evaluated. Two kinds of electricity value which is output by the amplifying circuit by an on/off operation of the switch are calculated with noise figure F according to three kinds of electricity value including electricity value such as the reference noise electricity.Type: GrantFiled: July 25, 2002Date of Patent: February 24, 2004Assignee: Ando Electric Co., Ltd. (Japanese)Inventor: Masayuki Kamata
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Publication number: 20030020498Abstract: In order to provide an IC tester which can measure noise measuring performance in a position where a DUT to be analyzed on an evaluation board is mounted quantitatively, a noise evaluation circuit comprises a reference resistor which generates thermal noise, a reference noise generator a summing circuit, an amplifying circuit which amplifies result of the calculation in the summing circuit, a switch, and an evaluation board having the reference resistor, the reference noise generator, the summing circuit, the amplifying circuit, and the switch thereon for evaluating the DUT to be evaluated. Two kinds of electricity value which is output by the amplifying circuit by an on/off operation of the switch are calculated with noise figure F according to three kinds of electricity value including electricity value such as the reference noise electricity.Type: ApplicationFiled: July 25, 2002Publication date: January 30, 2003Applicant: Ando Electric Co., Ltd. (Japanese)Inventor: Masayuki Kamata
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Patent number: 5917318Abstract: A high-speed responsive power supply for measuring equipment minimizes the heating value of a load current in the high-speed responsive power supply mounted on a test head. In order to achieve the object, the high-speed responsive power supply for measuring equipment is constructed as follows. The high-speed responsive power supply is incorporated inside the test head which a device under test is detachably mounted on. A remote sensing power supply provided inside a tester body rack disposed a specific distance from the test head feeds a power supply voltage to the high-speed responsive power supply. From the high-speed responsive power supply, an output supply voltage is fed to the device under test. The remote sensing power supply controls the power supply voltage so that a potential difference between the output supply voltage and the power supply voltage will be minimized within a range where the high-speed responsive power supply operates normally.Type: GrantFiled: February 18, 1997Date of Patent: June 29, 1999Assignee: Ando Electric Co., Ltd.Inventor: Masayuki Kamata