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    Production of fine particles of barium zirconate
    102.
    发明专利
    Production of fine particles of barium zirconate 失效
    生产硼酸钡的精细颗粒

    公开(公告)号：JPS59111921A

    公开(公告)日：1984-06-28

    申请号：JP21954082

    申请日：1982-12-15

    Applicant: Sony Corp

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

    IPC: C04B35/48 ,  C01G25/00 ,  H01B3/12

    CPC classification number: C01G25/00

    Abstract: PURPOSE: The reaction between a hydrolyzate of a zirconium compound and a water-soluble barium salt is carried out in a strong alkali aqueous solution to enable inexpensive production of fine particles of BaZrO
    3 with uniform activity.
    CONSTITUTION: A water-soluble Ba salt such as Ba(NO
    3 )
    2 is added to an aqueous solution of a hydrolyzate of a Zr compound such as ZrCl
    4 so that the Ba/Zr molar ratio becomes more than about 0.7 to form a solution. Then, the solution is adjusted in pH to about 13.6 using an aqueous solution of a strong base such as KOH. The reaction is effected under stirring the turbid suspension, then the precipitate is filtered, washed with water and dried. The process gives uniform, spherical particles of BaZrO
    3 of about 2W3 micrometer particle sizes. The resultant fine particles of BaZrO
    3 are most suitably used as a transparent ceramic for condensers.
    COPYRIGHT: (C)1984,JPO&Japio

    Abstract translation: 目的：锆化合物的水解产物和水溶性钡盐之间的反应在强碱水溶液中进行，使得能够以均匀的活性廉价生产BaZrO3微粒。 构成：将诸如Ba（NO 3）2的水溶性Ba盐加入ZrCl 4等Zr化合物的水解液的水溶液中，使得Ba / Zr摩尔比变得大于约0.7，形成溶液。 然后，使用强碱如KOH的水溶液将溶液的pH调节至约13.6。 反应在搅拌下进行混浊悬浮液，然后过滤沉淀物，用水洗涤并干燥。 该方法得到约2-3微米粒径的均匀球形的BaZrO 3颗粒。 所得到的BaZrO 3微粒最适合用作冷凝器的透明陶瓷。

    Method for crystal growth
    103.
    发明专利
    Method for crystal growth 失效
    晶体生长方法

    公开(公告)号：JPS5954690A

    公开(公告)日：1984-03-29

    申请号：JP16278382

    申请日：1982-09-18

    Applicant: Sony Corp

    Inventor： YORIZUMI MINEO ,  TAMURA HIDEMASA ,  MAKINO YOSHIMI

    IPC: H01F1/34 ,  C30B13/00 ,  C30B13/24 ,  C30B29/22

    CPC classification number: C30B13/24 ,  C30B13/00 ,  C30B29/16 ,  C30B29/26

    Abstract: PURPOSE: To obtain a high-quality crystal without forming foreign materials on the crystal surface and preventing the surface oxidation, by using a mixture of inert gas and oxygen having a specific concentration as the atmospheric gas in the growth of the crystal, and cooling the crystal at a specific crystal temperature while substituting the atmospheric gas with an inert gas.
    CONSTITUTION: A desired crystal is grown by heating and melting the raw material 7 for the crystal growth by the direct heating e.g. with infrared radiation 12. In the above process, a mixture of oxygen gas and an inert gas having a partial pressure ratio of oxygen of ≤50% is used as an atmospheric gas. The temperature of the crystal 13 during growth in the growth apparatus 1 is maintained at ≥1,000°C, and the grown crystal is cooled by at least partially substituting the atmosphere with an inert gas before or around the completion of the growth or is cooled in a substituted atmosphere to obtain a ferrite.
    COPYRIGHT: (C)1984,JPO&Japio

    Abstract translation: 目的：通过在晶体生长中使用具有特定浓度的惰性气体和氧气作为气氛气体的混合物，在晶体表面上形成异物并防止表面氧化，从而获得高质量的晶体， 晶体，同时用惰性气体代替气氛气体。 构成：通过直接加热使原料7加热和熔化晶体生长而生长所需的晶体，例如 使用红外辐射12.在上述方法中，将氧气和氧气分压比<= 50％的惰性气体的混合物用作气氛气体。 生长装置1中生长期间的晶体13的温度保持在> = 1000℃，并且在生长完成之前或周围至少部分地用惰性气体代替气氛来冷却生长的晶体，或者是 在取代气氛下冷却，得到铁素体。

    PRODUCTION FOR BALL ROTATING DISPLAY
    104.
    发明专利
    PRODUCTION FOR BALL ROTATING DISPLAY 失效

    公开(公告)号：JPS58122519A

    公开(公告)日：1983-07-21

    申请号：JP580682

    申请日：1982-01-18

    Applicant: SONY CORP

    Inventor： ISHIKAWA REIJI ,  SAITOU MAKI ,  MORI TOSHIO ,  TAMURA HIDEMASA

    IPC: B29D99/00 ,  B29B7/00 ,  B29C39/00 ,  B29C39/10 ,  B29C39/12 ,  B29C67/00 ,  G02B26/02 ,  G02F1/17 ,  G02F1/19 ,  G09F9/37

    Abstract: PURPOSE:To obtain a high-quality display effect, by settling down balls, which are covered with coatings insoluble in a liquid and soluble in a high-resistance organic liquid, in the liquid to form an accumulation layer and charging high polymer materials soluble in the liquid and removing the sheet-shaped coating obtained by eliminating the liquid and arranging display balls most closely. CONSTITUTION:Many display balls 3 covered with coatings such as a wax coat insoluble in the liquid are dispersed and settled down in a low-viscosity liquid 13 to form an accumulation layer. A polyvinyl alcohol (PVA) aqueous solution is charged to this liquid to wrap the accumulation layer of balls 3 and is allowed to permeate into gaps between balls 3, and the liquid is eliminated, and the PVA is hardened. When a sheet 14 obtained in this manner 14 is washed away by toluene and coatings 20 are removed by dissolution, cavities corresponding to the thickness of coatings are generated around balls 3 by removal of coatings, and balls 3 is arranged freely rotatably and most closely in toluene substituted in cavities.

    GROWING APPARATUS OF CRYSTAL
    105.
    发明专利
    GROWING APPARATUS OF CRYSTAL 失效

    公开(公告)号：JPS57175793A

    公开(公告)日：1982-10-28

    申请号：JP5770081

    申请日：1981-04-16

    Applicant: SONY CORP

    Inventor： YORIZUMI MINEO ,  YAMADA TOSHIROU ,  TAMURA HIDEMASA

    IPC: H01F1/34 ,  C30B13/00 ,  C30B13/22 ,  C30B13/24 ,  H01B3/00

    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 an auxiliary heating means in a seed crystal growing apparatus. CONSTITUTION:A seed crystal of a single crystal is mounted on a platinum plate 78 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 a 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 to be a molten state by infrared rays 5 from a lamp 3. The rotating and driving shafts 72 and 73 are lowered slowly 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 then introduced into a heat generating part 14 of the subheater 13 gradually and annealed. The heat generating part 14 is connected to an electrode 58 through an inserting hole 56 provided in a support 55.

    SLIDING MEMBER
    106.
    发明专利
    SLIDING MEMBER 失效

    公开(公告)号：JPS5792456A

    公开(公告)日：1982-06-09

    申请号：JP16819080

    申请日：1980-11-29

    Applicant: SONY CORP

    Inventor： KAMIHIRA AKIRA ,  SHIMIZU HIDETOSHI ,  TAMURA HIDEMASA ,  TAGUCHI HIROMICHI ,  YAMANOI HIROSHI ,  MAKINO YOSHIMI

    IPC: G11B15/61 ,  B29C70/64 ,  C08J5/16 ,  C08K3/00 ,  C08L67/06 ,  F16C33/20 ,  G11B15/60

    Abstract: PURPOSE:To improve running characteristics by exposing a part of the surface of the granular inorganic packing material of a sliding member, whose sliding surface is made of a high polymer composite material containing the granular inorganic packing material, in the sliding surface with regard to the drum material, tape guide, etc., of a VTR. CONSTITUTION:Resin forming the base of a compound material consists of unsaturated polyester resin and thermoplastic resin, which are normally mixed by being dissolved in a cross-linking agent (polymerizable monomer) of unsaturated polyester resin. In this case, 20-70vol% unsaturated polyester and 1- 25vol% thermosetting resin are used. Further, preferably 30-70vol% polymerizable monomer is contained in the solution. The content of this resin is 35- 60vol% to the whole of the resin composite.

    AMORPHOUS MAGNETIC ALLOY
    107.
    发明专利
    AMORPHOUS MAGNETIC ALLOY 失效

    公开(公告)号：JPS5443118A

    公开(公告)日：1979-04-05

    申请号：JP10974677

    申请日：1977-09-12

    Applicant: SONY CORP

    Inventor： ASO KOUICHI ,  KAMIHIRA AKIRA ,  MAKINO YOSHIMI ,  ITOU MORIYASU ,  TAMURA HIDEMASA

    IPC: C22C45/02 ,  G11B5/127 ,  G11B5/147 ,  H01F1/153

    Abstract: PURPOSE:To provide an amorphous magnetic alloy suitable for use as a magnetic head material obtd. by adding a limited amt. of Ru and one or more kinds of amorphism forming elements selected from P, C, Si, B and Ge to iron. CONSTITUTION:The amorphous magnetic alloy consists of Ru; 2-20at%, one or more kinds of amorhism forming elements selected from P, C, Si, B and Ge; 10- 30%, and the balance almost iron. The addn. of Ru decreases the magnetostriction constant and this compsn improves the working resistance and toughness, thereby reducing a fluctuation in effective permeability before and after resin molding. This alloy can be rolled to stably manufacture tough straight foil.

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