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公开(公告)号：JPS6011229A
公开(公告)日：1985-01-21
申请号：JP11547583
申请日：1983-06-27
Applicant: SONY CORP
Inventor： KAMIHIRA AKIRA , YAMANOI HIROSHI , SUZUKI MASAYUKI , TAMURA HIDEMASA , SUZUKI HIROYUKI
Abstract: PURPOSE:To obtain fine SrZrO3 particles having a high dielectric constant and a small and uniform particle size and suitable for use as a dielectric material by reacting the hydrolyzate of a Zr compound with an Sr salt in a strongly alkaline aqueous soln. CONSTITUTION:An aqueous soln. of a Zr compound such as zirconium chloride or zirconium nitrate is made neutral to form ZrO2.xH2O, and filtration and washing are carried out as required. This hydrolyzate is reacted with an Sr salt such as strontium chloride in a strongly alkaline aqueous soln. of >= about 14.45pH in >= about 0.35 molar ratio of Sr/Zr to obtain desired fine SrZrO3 particles. The particles are fine and uniform, so when they are used in the manufacture of a laminated ceramic capacitor, the capacitor can be made small in size and light in weight. At the same time, the capacity of the capacitor is increased, and the high frequency characteristics are improved.
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公开(公告)号：JPS5949299B2
公开(公告)日：1984-12-01
申请号：JP10974677
申请日：1977-09-12
Applicant: Sony Corp
Inventor： ASO KOICHI , KAMIHIRA AKIRA , MAKINO YOSHIMI , ITO MORYASU , TAMURA HIDEMASA
CPC classification number: H01F1/15308 , C22C45/02 , G11B5/127
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公开(公告)号：JPS59174527A
公开(公告)日：1984-10-03
申请号：JP4961683
申请日：1983-03-24
Applicant: Sony Corp
Inventor： KAMIHIRA AKIRA , SUZUKI MASAYUKI , YAMANOI HIROSHI , TAMURA HIDEMASA
IPC: C01G19/00
Abstract: PURPOSE: To obtain fine MgSn(OH)
6 particles having a small and uniform particle size and giving composite Mg.Sn oxide by heat treatment by reacting the hydrolyzate of an Sn compound or a soluble stannate with an Mg salt in an aqueous strong alkali soln.
CONSTITUTION: The hydrolyzate of an Sn compound such as SnCl
4 or Sn(SO
4 )
2 or a soluble stannate such as Na
2 SnO
3 .3H
2 O or K
2 SnO
3 .3H
2 O is reacted with an Mg salt such as MgCl
2 .6H
2 O or MgSO
4 .7H
2 O in an aqueous strong alkali soln. of ≥12.0pH to manufacture fine and uniform MgSn(OH)
6 particles. When the particles are added to an electrostrictive material, a piezoelectric material or the like contg. PbTiO
3 or the like as the principal component, the material can be sintered at a low temp. while inhibiting the evaporation of Pb, so a change in the composition can be reduced. Amorphous particles obtd. by heat treatment at a low temp. can be made smaller in particle size, and when the particles are added to a ferroelectric material such as BaTiO
3 , the diffusion proceeds rapidly and the sintering temp. can be lowered.
COPYRIGHT: (C)1984,JPO&JapioAbstract translation: 目的：为了获得具有小而均匀粒度的细小MgSn（OH）6颗粒，并通过在强碱性水溶液中使Sn化合物或可溶性锡酸盐的水解产物与Mg盐反应进行热处理，得到复合Mg.Sn氧化物 。 构成：将Sn化合物如SnCl 4或Sn（SO 4）2或可溶性锡酸盐如Na 2 SnO 3·3H 2 O或K 2 SnO 3·3H 2 O的水解产物与Mg盐如MgCl 2·6H 2 O或MgSO 4·7H 2 O在强碱 SOLN。 > 12.0pH，以制造精细均匀的MgSn（OH）6颗粒。 当将颗粒加入到电致伸缩材料中时，压电材料等。 PbTiO3等作为主要成分，材料可以在低温下烧结。 同时抑制Pb的蒸发，因此可以降低组合物的变化。 无定形颗粒物 通过在低温下的热处理。 可以使粒径更小，并且当将粒子添加到诸如BaTiO 3的铁电材料时，扩散迅速进行并且烧结温度。 可以降低
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Patent Agency Ranking
公开(公告)号：JPS59156916A
公开(公告)日：1984-09-06
申请号：JP3195783
申请日：1983-02-28
Applicant: Sony Corp
Inventor： KAMIHIRA AKIRA , YAMANOI HIROSHI , SUZUKI MASAYUKI , TAMURA HIDEMASA
IPC: C01G19/00
Abstract: PURPOSE: To manufacture fine SrSnO
3 particles having a uniform particle size and high activity by depositing SrSn(OH)
6 by a wet synthsis method and dehydrating it by heat treatment.
CONSTITUTION: The hydrolyzate of a tin compound such as tin chloride or a soluble stannate such as sodium stannate is reacted with a water soluble strontium salt such as strontium oxide in an aqueous stron alkali soln. of ≥ about 12.8pH. The reaction temp. is ≥ about 80°C, the reaction time is ≥ about 6min, and the molar ratio of Sr/Sn is about 0.1W16. The resulting SrSn(OH)
6 is dehydrated by heat treatment at ≥ about 450°C to obtain fine SrSnO
3 powder.
COPYRIGHT: (C)1984,JPO&JapioAbstract translation: 目的：通过湿法合成法沉积SrSn（OH）6，通过热处理脱水，制备粒径均匀，活性高的精细SrSnO3颗粒。 构成：锡化合物如氯化锡或可溶性锡酸盐如锡酸钠的水解产物与水溶性碱性溶胶中的水溶性锶盐如氧化锶反应。 > =约12.8pH。 反应温度 => 80℃，反应时间> =约6min，Sr / Sn的摩尔比约为0.1-16。 所得的SrSn（OH）6通过> =约450℃的热处理脱水，得到细小的SrSnO 3粉末。
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公开(公告)号：JPS56134816A
公开(公告)日：1981-10-21
申请号：JP15433280
申请日：1980-11-01
Applicant: SONY CORP
Inventor： TAMURA HIDEMASA , YANAGISAWA GEN
Abstract: PURPOSE:To prevent the piezoelectric substance plate from slipping off due to its own weight, by holding the piezoelectric substance by the face contact in four positions between tongue parts of the slit and the piezoelectric substance plate. CONSTITUTION:In supporting materials 24, 25 longitudinal slits 31 and 32 for element insertion are formed in upper half parts, and elastically deformable tongue parts 28a, 28b, 29a and 29b are formed which are formed in one body together with supporting materials 24, 25 on and under slits 31 and 32. When element 26 is inserted, tongue parts 28a, 28b, 29a and 29b are bent outside in accordance with the form and the weight of element 27. At this time, element 27 is held by supporting materials 24 and 25 very well by face contacting between tongue parts 28a, 28b, 29a and 29b and side faces of element 27.
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公开(公告)号：JPS5476692A
公开(公告)日：1979-06-19
申请号：JP14423077
申请日：1977-12-01
Applicant: SONY CORP
Inventor： SHIMIZU HIDETOSHI , NAGAI TOORU , TAMURA HIDEMASA , MAKINO YOSHIMI
IPC: C08F2/00 , B29C70/58 , C08F2/44 , C08K3/04 , C08L1/00 , C08L27/00 , C08L33/00 , C08L33/02 , C08L67/00 , C08L67/06 , G11B15/60 , G11B23/087
Abstract: PURPOSE:To prepare an unsaturated polyester resin composition having abrasion characteristics, and useful as a raw material of a magnetic recording head drum, a tape guide, etc., which does not damage magnetic tapes, by adding specific amounts of graphite and granular inorganic filler. CONSTITUTION:An unsaturated polyester resin is incorporated with 5-15 vol% of graphite having a particle diameter of 15-100mu, and 35-55 vol% of a granular inorganic filler such as calcium carbonate, having a granular diameter of 30-100mu. The sum of the amount of graphite and filler is 40-65%. The unsaturated polyester resin is preferably obtained by mixed 5-20% of a theromoplastic resin such as polymethyl methacrylate, and 40-60% of a polymerizable monomer such as diallyl phthalate, to an unsaturated polyester having an acid value of
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公开(公告)号：JPS5476664A
公开(公告)日：1979-06-19
申请号：JP14423177
申请日：1977-12-01
Applicant: SONY CORP
Inventor： MAKINO YOSHIMI , SHIMIZU HIDETOSHI , NAGAI TOORU , TAMURA HIDEMASA
Abstract: PURPOSE:To obtain electrical appliance parts, e.g. VTR head drum materials, head mold materials, etc. without forming resin layers on the surfaces, by rotating a liquid molding material containing a filler at a high speed immediately before hardening. CONSTITUTION:A liquid molding material containing a filler, e.g. graphite, glass fiber, etc. is rotated at a normal acceleration at the periphery of 5-200G immediately before the hardening. The filler having a higher specific gravity moved to the periphery of the molded article, air bubbles having a lower specific gravity, to the center of the article. The formation of the resin skin layer is thus prevented to give a symmetrical roto molded article.
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公开(公告)号：JPS5456919A
公开(公告)日：1979-05-08
申请号：JP12364477
申请日：1977-10-15
Applicant: SONY CORP
Inventor： ASO KOUICHI , KAMIHIRA AKIRA , TAMURA HIDEMASA , ITOU MORIYASU , MAKINO YOSHIMI
Abstract: PURPOSE:To provide the subject alloy having a high permeability, and being excellent in magnet-resisting workability and resin-resisting moldability, and comprising more than a member selected from the group consisting of Mo, Mn, V and Al, a specific quantity of more than a member selected from the group consisting of amorphousness-forming elemnts such as Si, B and Ge, and the residual part the magor part of which consists of Fe. CONSTITUTION:This alloy comprises more than a member selected from the group consisting of Mo, Mn, V and Al (in this case, 2 to 20 at % of more than a member selected from the group consisting of Mo, Mn, and V and 0.1 to 30 at % of Al are contained), 10 to 30 at % of more than a member selected from the group consisting of amorphousness-forming elements such as Si, B and Ge, and 70 to 90 at % of the residual part the major part of which consists of Fe. It is preferable that when Si, B and Ge as amorphousness-forming elements are pepresented by Six By and Gez, where x+y+z=1, respective components be selected in the range, x
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