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公开(公告)号：US20190181330A1
公开(公告)日：2019-06-13
申请号：US16310988
申请日：2017-06-19
发明人： Shinji Tanabe , Hajime Kunita , Shunsuke Kikuchi
摘要： Provided is a piezoelectric material filler including alkali niobate compound particles having a ratio (K/(Na+K)) of the number of moles of potassium to the total number of moles of sodium and potassium of 0.460 to 0.495 in terms of atoms and a ratio ((Li+Na+K)/Nb) of the total number of moles of alkali metal elements to the number of moles of niobium of 0.995 to 1.005 in terms of atoms. The present invention can provide a piezoelectric material filler having excellent piezoelectric properties, and a composite piezoelectric material including the piezoelectric material filler and a polymer matrix.
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2.发明申请公开(公告)号：US20190341554A1
公开(公告)日：2019-11-07
申请号：US16480135
申请日：2018-02-13
发明人： Fumihiro Yonekawa , Shizuka Tane
摘要： A light-emitting electrochemical cell (10) has: a light-emitting layer (12) containing a polymer material having a function of transporting electrons and holes, a light-emitting material emitting light by receiving holes and electrons from the polymer material or emitting light due to excitons generated by combination of holes and electrons on the polymer material, and an electrolyte; and an electrode (13, 14) disposed on each face of the light-emitting layer (12). The light-emitting material is a compound having a pyrromethene skeleton. The light-emitting layer (12) is preferably colorless and transparent in a visible light wavelength region in a state where voltage is not applied.
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公开(公告)号：US11659768B2
公开(公告)日：2023-05-23
申请号：US17543093
申请日：2021-12-06
发明人： Shinji Tanabe , Hajime Kunita , Shunsuke Kikuchi
IPC分类号： H10N30/85 , C01G33/00 , H10N30/853 , H10N30/097 , H10N30/30 , H01L41/18 , H01L41/187 , H01L41/43 , H01L41/113
CPC分类号： H01L41/183 , C01G33/006 , H01L41/1873 , H01L41/43 , C01P2002/72 , C01P2002/74 , C01P2004/03 , C01P2004/51 , C01P2004/52 , C01P2004/53 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/40 , H01L41/113
摘要： Provided is a piezoelectric material filler including alkali niobate compound particles having a ratio (K/(Na+K)) of the number of moles of potassium to the total number of moles of sodium and potassium of 0.460 to 0.495 in terms of atoms and a ratio ((Li+Na+K)/Nb) of the total number of moles of alkali metal elements to the number of moles of niobium of 0.995 to 1.005 in terms of atoms. The present invention can provide a piezoelectric material filler having excellent piezoelectric properties, and a composite piezoelectric material including the piezoelectric material filler and a polymer matrix.
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公开(公告)号：US11578266B2
公开(公告)日：2023-02-14
申请号：US16979340
申请日：2019-03-20
发明人： Yosuke Takubo , Ken Tamura , Kazuhiro Nakatsui
摘要： The silyl phosphine compound of the present invention is represented by the formula (1) and has an arsenic content of not more than 1 ppm. The process for producing a silyl phosphine compound of the present invention is a process comprising mixing a basic compound, a silylating agent and phosphine to obtain a solution containing a silyl phosphine compound, removing a solvent from the solution to obtain a concentrated solution of a silyl phosphine compound, and distilling the concentrated solution, wherein an arsenic content in the phosphine is adjusted to not more than 1 ppm by volume in terms of arsine. The process for producing InP quantum dots of the present invention uses, as a phosphorus source, a silyl phosphine compound represented by the formula (1) and having an arsenic content of not more than 1 ppm by mass. (For definition of R, see the specification.)
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5.发明授权公开(公告)号：US11554968B2
公开(公告)日：2023-01-17
申请号：US17635521
申请日：2020-08-27
发明人： Masahiro Kikuchi
IPC分类号： C01G51/00
摘要： An object of the present invention is to provide a positive electrode active substance for a lithium secondary battery, the positive electrode active substance, when being used as a positive electrode active substance for a lithium secondary battery, being little in deterioration of cycle characteristics and being high in the energy density retention rate, even in repetition of charge and discharge at high voltages, and a lithium secondary battery little in deterioration of cycle characteristics and high in the energy density retention rate, even in repetition of charge and discharge at high voltages. The positive electrode active substance for a lithium secondary battery comprises a lithium cobalt-based composite oxide particle having a Ti-containing compound and an Mg-containing compound adhered on at least part of the particle surface.
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公开(公告)号：US11453687B2
公开(公告)日：2022-09-27
申请号：US17600251
申请日：2020-03-30
发明人： Ken Tamura , Yuki Sawatsugawa , Natsuhiro Sano
IPC分类号： C07F9/50
摘要： A production method by which a biarylphosphine useful as a Buchwald phosphine ligand can be obtained in high purity is provided through an industrially advantageous process. The production method of a biarylphosphine comprises a step A of reacting a lithiated product obtained through lithiation of a halogenated benzene derivative with a benzene derivative to obtain a biphenyl derivative, and a step B of the reacting the biphenyl derivative with a halogenated phosphine. In the step A, the charge molar ratio of the halogenated benzene derivative to the benzene derivative is preferably 1.0 to 5.0.
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7.发明申请公开(公告)号：US20220298025A1
公开(公告)日：2022-09-22
申请号：US17635521
申请日：2020-08-27
发明人： Masahiro Kikuchi
IPC分类号： C01G51/00
摘要： An object of the present invention is to provide a positive electrode active substance for a lithium secondary battery, the positive electrode active substance, when being used as a positive electrode active substance for a lithium secondary battery, being little in deterioration of cycle characteristics and being high in the energy density retention rate, even in repetition of charge and discharge at high voltages, and a lithium secondary battery little in deterioration of cycle characteristics and high in the energy density retention rate, even in repetition of charge and discharge at high voltages. The positive electrode active substance for a lithium secondary battery comprises a lithium cobalt-based composite oxide particle having a Ti-containing compound and an Mg-containing compound adhered on at least part of the particle surface.
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公开(公告)号：US11384024B2
公开(公告)日：2022-07-12
申请号：US16973951
申请日：2019-06-14
发明人： Junya Fukazawa , Toru Hata
IPC分类号： C04B35/447 , C01B25/45 , C01B25/37
摘要： A negative thermal expansion material made of zirconium phosphate tungstate containing an Al atom, and having a thermal expansion coefficient of −2.0×10−6 to −3.3×10−6/K. According to the present invention, a negative thermal expansion material made of zirconium phosphate tungstate having various thermal expansion coefficients, and an industrially advantageous manufacturing method thereof can be provided.
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公开(公告)号：US20220169667A1
公开(公告)日：2022-06-02
申请号：US17600251
申请日：2020-03-30
发明人： Ken Tamura , Yuki Sawatsugawa , Natsuhiro Sano
IPC分类号： C07F9/50
摘要： A production method by which a biarylphosphine useful as a Buchwald phosphine ligand can be obtained in high purity is provided through an industrially advantageous process. The production method of a biarylphosphine comprises a step A of reacting a lithiated product obtained through lithiation of a halogenated benzene derivative with a benzene derivative to obtain a biphenyl derivative, and a step B of the reacting the biphenyl derivative with a halogenated phosphine. In the step A, the charge molar ratio of the halogenated benzene derivative to the benzene derivative is preferably 1.0 to 5.0.
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10.发明授权公开(公告)号：US11332599B2
公开(公告)日：2022-05-17
申请号：US17435139
申请日：2020-02-28
发明人： Junya Fukazawa , Toru Hata , Takuma Kato
摘要： There is provided a modified zirconium phosphate tungstate which effectively suppresses the elution of phosphorus ions even when it contacts with water, can develop the performance excellent as a negative thermal expansion material, and can be dispersed in a polymer compound such as a resin, and use of which enables a low-thermal expansive material containing a negative thermal expansion filler to be well produced. The surface of a zirconium phosphate tungstate particle is coated with an inorganic compound containing one or two or more elements (M) selected from Zn, Si, Al, Ba, Ca, Mg, Ti, V, Sn, Co, Fe and Zr. The BET specific surface area of the zirconium phosphate tungstate particle is preferably 0.1 m2/g to 50 m2/g.
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