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    MANUFACTURE OF MIXED FINE PARTICLE CONSISTING OF BATIO3 AND BASN(OH)6 AND FINE PARTICLE OF BA(SNXTI1-X)O3 SOLID SOLUTION
    82.
    发明专利
    MANUFACTURE OF MIXED FINE PARTICLE CONSISTING OF BATIO3 AND BASN(OH)6 AND FINE PARTICLE OF BA(SNXTI1-X)O3 SOLID SOLUTION 失效

    公开(公告)号：JPS60161338A

    公开(公告)日：1985-08-23

    申请号：JP1388084

    申请日：1984-01-27

    Applicant: SONY CORP

    Inventor： KAMIHIRA AKIRA ,  SUZUKI MASAYUKI ,  YAMANOI HIROSHI ,  TAMURA HIDEMASA

    IPC: C01G23/00 ,  C01G19/00

    Abstract: PURPOSE:To obtain the titled mixed fine particles having high activity, high sintering properties at low temps., and high purity by mixing an Sn compd. and a Ti compd., adding a Ba salt to the mixture, and allowing the mixture to react in a strongly alkaline aq. soln. CONSTITUTION:An Sn compd. or its hydrolysate and a Ti compd. or its hydrolysate are mixed in a specified ratio. SnCl4, Sn(NO3)4, etc. are used as the Sn compd., and the hydrolysate is obtained by hydrolyzing the aq. soln. of said Sn compd. with an alkaline soln. such as NH4OH. Meanwhile, TiCl4, Ti(SO4)2, etc. are used as the Ti compd., and its hydrolysate is obtained by hydrolyzing the aq. soln. of said Ti compd. with an alkaline soln. such as NH4OH. A Ba salt [Ba(NO3)2, etc.] is added to the mixture in 0.7-2.0mol ratio of Ba/(Sn+Ti), and the mixture is allowed to react at >=about 13pH and about 80 deg.C for >=5min. The formed precipitate is then washed, and dried to obtain the fine particles wherein BaTiO3 fine particles and BaSn(OH)6 fine particles are mixed.

    COMPOSITE CONSISTING OF METALLIC TI LAYER AND SRTIO3 FILM AND ITS MANUFACTURE
    84.
    发明专利
    COMPOSITE CONSISTING OF METALLIC TI LAYER AND SRTIO3 FILM AND ITS MANUFACTURE 失效

    公开(公告)号：JPS60121276A

    公开(公告)日：1985-06-28

    申请号：JP22972183

    申请日：1983-12-05

    Applicant: SONY CORP

    Inventor： KAMIHIRA AKIRA ,  YAMANOI HIROSHI ,  TAMURA HIDEMASA

    IPC: C23C22/64 ,  H01G9/00

    Abstract: PURPOSE:To develop a capacitor having a large electrostatic capacity by utilizing SrTiO3 having a high dielectric constant as the dielectric of the capacitor in a compound integrated circuit. CONSTITUTION:An Au layer 2 is formed on a substrate 1 made of ceramic or glass by a vapor deposition method, etc., and the Au layer is masked with a photoresist and partially etched. The surface is covered with a Ti metal 3 by vapor deposition, spattering, etc., and the Ti metal is masked again with the photoresist and etched to form a Ti layer 3 on the Au layer 2. Then the Ti layer is chemically treated with an aq. alkaline soln. contg. >=0.1mol/l Sr whose pH is regulated to >=13 to convert the Ti layer 3 into an SrTiO3 layer. An Au electrode 5 to be used as an opposite electrode is formed thereon to form a capacitor having a large electrostatic capacity wherein an SrTiO3 layer 4 having a high dielectric constant is used as the dielectric.

    Preparation of fine particle from calcium titanate
    85.
    发明专利
    Preparation of fine particle from calcium titanate 失效
    从钙钛矿制备细颗粒

    公开(公告)号：JPS5945927A

    公开(公告)日：1984-03-15

    申请号：JP15124082

    申请日：1982-08-31

    Applicant: Sony Corp

    Inventor： KAMIHIRA AKIRA ,  YAMANOI HIROSHI ,  TAMURA HIDEMASA

    IPC: C01G23/00

    Abstract: PURPOSE: To obtain easily fine particles of calcium titanate (CaTiO
    3 ) having a uniform particle size, by reacting a hydrolytic product of a titanium compound with a water-soluble calcium salt in a strongly alkaline aqueous solution.
    CONSTITUTION: A titanium compound, e.g. TiCl
    4 or Ti(SO
    4 )
    2 , is hydrolyzed to give a hydrolytic product, e.g. TiO
    2 .xH
    2 O. On the other hand, a water-soluble calcium salt, e.g. Ca(NO
    3 )
    2 , Ca(OH)
    2 , CaCl
    2 or Ca(CH
    3 COO)
    2 , is prepared. The resultant water-soluble calcium salt is then reacted with the above-mentioned TiO
    2 .xH
    2 O in a strongly alkaline aqueous solution, e.g. NaOH, KOH or LiOH. Thus, the aimed fine particles of CaTiO
    3 having a uniform particle size are easily obtained by the above-mentioned method.
    COPYRIGHT: (C)1984,JPO&Japio

    Abstract translation: 目的：通过在强碱性水溶液中使钛化合物的水解产物与水溶性钙盐反应，以获得具有均匀粒径的容易细小的钛酸钙颗粒（CaTiO 3）。 构成：钛化合物，例如 TiCl 4或Ti（SO 4）2水解，得到水解产物，例如 TiO2.xH2O。 另一方面，水溶性钙盐，例如水溶性钙盐。 制备Ca（NO 3）2，Ca（OH）2，CaCl 2或Ca（CH 3 COO）2。 然后将所得的水溶性钙盐与上述TiO 2·xH 2 O在强碱性水溶液中反应。 NaOH，KOH或LiOH。 因此，通过上述方法容易地获得具有均匀粒径的目标细小颗粒CaTiO 3。

    Manufacture of fine barium titanate particle
    86.
    发明专利
    Manufacture of fine barium titanate particle 失效
    精细钛酸钡颗粒的制造

    公开(公告)号：JPS5939726A

    公开(公告)日：1984-03-05

    申请号：JP14722682

    申请日：1982-08-25

    Applicant: Sony Corp

    Inventor： KAMIHIRA AKIRA ,  YAMANOI HIROSHI ,  TAMURA HIDEMASA

    IPC: C01G23/00 ,  C01G23/02

    Abstract: PURPOSE: To manufacture fine BaTiO
    3 particles having a small and uniform particle size by reacting the hydrolyzate of a Ti compound with a water soluble Ba salt in an aqueous soln. of a strong alkali.
    CONSTITUTION: A Ti compound such as TiCl
    4 or Ti(SO
    4 )
    2 is dissolved in water, and the aqueous soln. is neutralized and optionally freed of sulfuric acid radicals by washing to obtain the hydrolyzate of the Ti compound. To the hydrolyzate is added an aqueous soln. of a water soluble Ba salt such as Ba(NO
    3 )
    2 or BaCl
    2 in ≥0.5 molar ratio of Ba/Ti, a strong alkali such as LiOH or KOH is further added to adjust the pH of the soln. to ≥13.0, and the hydrolyzate is reacted with the Ba salt at 15°CW b.p. The resulting BaTiO
    3 is separated by filtration, washed, and dried to obtain fine BaTiO
    3 particles having 200W300Å small particle size and suitable for use as an electrostriction material, a piezoelectric material or a transparent ceramic material.
    COPYRIGHT: (C)1984,JPO&Japio

    Abstract translation: 目的：通过在水溶液中使Ti化合物的水解产物与水溶性Ba盐反应，制造具有小而均匀粒度的精细BaTiO3颗粒。 的强碱。 构成：将Ti化合物如TiCl 4或Ti（SO 4）2溶解于水和水溶液中。 通过洗涤中和并任选地除去硫酸根，得到Ti化合物的水解产物。 向水解产物中加入水溶胶。 的Ba / Ti摩尔比的Ba（NO 3）2或BaCl 2等水溶性Ba盐，进一步添加强碱（如LiOH或KOH）以调节溶胶的pH值。 至> = 13.0，水解产物与Ba盐在15摄氏度下反应。 通过过滤分离所得的BaTiO 3，洗涤并干燥，得到细小的200-300AA的细小的BaTiO3颗粒，适合用作电致伸缩材料，压电材料或透明陶瓷材料。

    GROWING METHOD OF CRYSTAL
    87.
    发明专利
    GROWING METHOD OF CRYSTAL 失效

    公开(公告)号：JPS57175792A

    公开(公告)日：1982-10-28

    申请号：JP5769981

    申请日：1981-04-16

    Applicant: SONY CORP

    Inventor： YORIZUMI MINEO ,  YAMADA TOSHIROU ,  TAMURA HIDEMASA

    IPC: C30B13/00 ,  C30B13/22 ,  C30B13/24 ,  H05B3/00

    Abstract: PURPOSE:To make it possible to prevent the occurrence of the deterioration and cracks of a grown crystal, by annealing a grown single crystal part with a subheater unit in a seed crystal growing apparatus. CONSTITUTION:A seed crystal of a single crystal is mounted on a platinum plate 78 joined flexibly to an alumina rod 77 provided at the tip of a rotating and driving shaft 72, and a raw polycrystalline material 83 is mounted on a rotating and driving shaft 73. The rotating and driving shafts 72 and 73 are set to position the joined part of the seed crystal to the polycrystalline material 83 at a focus (E2) of an infrared heating chamber 2, and the joined part is heated by infrared rays 5 from a lamp 3 in a molten state. The rotating and driving shafts 72 and 73 are slowly lowered while rotated and driven mutually in the opposite directions, and a molten part 84 of a material 4 to be treated is relatively lifted. Thus, a single crystal part 80 is grown under the molten part 84 and introduced into a heat generating part 14 of a subheater unit 13 gradually and annealed.

    PRODUCTION OF TARGET FOR SPUTTERING
    90.
    发明专利
    PRODUCTION OF TARGET FOR SPUTTERING 失效

    公开(公告)号：JPH0925566A

    公开(公告)日：1997-01-28

    申请号：JP19575695

    申请日：1995-07-10

    Applicant: SONY CORP

    Inventor： YOKOYAMA NORIO ,  SHIMIZU EIICHI ,  TAMURA HIDEMASA

    IPC: B22F1/00 ,  C22C19/07 ,  C23C14/14 ,  C23C14/34 ,  G11B5/85 ,  G11B5/851

    Abstract: PROBLEM TO BE SOLVED: To produce a target fine in crystal particle diameter and free from composition segregation by molding an alloy powder manufactured by the gas atomizing method to produce an alloy target. SOLUTION: Co, Pt and Cr, which are adjusted to a desired target composition ratio, are mixed and melted in a vacuum melting furnace. The molten mixture is continuously ejected to a granulating chamber 2 through a nozzle 5 and atomized with a jetting gas from a gas introducing port 6. Spherical particles 7 are formed by cooling during falling down. The spherical particles 7 further fall down to a container 4 through a cyclone 3 to be stored. The alloy target is produced by molding the alloy powder 7 manufacturef by gas atmizing method in this way. As a result, a metallic magnet target uniformly low all over in magnetic permeability is produced.

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