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公开(公告)号：JPS61247622A
公开(公告)日：1986-11-04
申请号：JP8957885
申请日：1985-04-25
Applicant: SONY CORP
Inventor： KAMIHIRA AKIRA , YAMANOI HIROSHI , SUZUKI MASAYUKI , TAMURA HIDEMASA
IPC: C01G29/00
Abstract: PURPOSE:To obtain the fine grains of bismuth titanate uniform in the grain size distribution and free from the mixing of the impurities by allowing a hydrolysate of a Ti compd. or a water soluble Ti salt to react with a water soluble Bi compd. in an aq. soln. at the high temp. in the strong alkali. CONSTITUTION:A water soluble Bi compd. such as Bi(NO3)3.5H2O is added to an aq. soln. of a hydrolysate of a Ti compd. or a water soluble Ti salt. Successively the aq. soln is regulated to 14.1-14.85 pH by adding NaOH or the like. While stirring this aq. soln. in a closed vessel used with an autoclave, it is allowed to react with each other at >=150 deg.C. The impurities such as the alkali ions are removed by repeating the decantation for the produced white precipitate. Furthermore the fine grains of bismuth titanate wherein the grain size is fine and uniform are obtained in a single phase by filtering, water- washing and drying it. By this method, the heat treatment after the synthesis of bismuth titanate is unnecessitated.
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公开(公告)号：JPS6191016A
公开(公告)日：1986-05-09
申请号：JP21364984
申请日：1984-10-12
Applicant: Sony Corp
Inventor： KAMIHIRA AKIRA , YAMANOI HIROSHI , SUZUKI MASAYUKI , TAMURA HIDEMASA
Abstract: PURPOSE: To produce dielectric material fine powder having a small amount of Cl, by hydrolyzing Ti or Zr chloride in an aqueous solution, alkalizing it to remove Cl and reacting the solution with a specific water-soluble salt.
CONSTITUTION: An aqueous solution of Ti or Zr chloride (e.g., TiCl
4 , or ZrCl
4 ) is hydrolyzed with NH
4 OH, adjusted with an alkalizing agent (e.g., NaOH) to ≥7.1pH, washed with water, and decanted, to remove Cl ion. The solution is reacted with at least one water-soluble salt [e.g., Ba(OH)
2 ] of Ba, Sr, and Ca in an amount approximately equimolar with Ti or Zr in a strongly alkali aqueous solution. Consequently, a molded article of ceramic condenser having high reliability free from deterioration resulting form Cl is prepared.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：为了生产具有少量Cl的介电材料细粉，通过在水溶液中水解Ti或Zr氯化物，使其碱化以除去Cl并使溶液与特定的水溶性盐反应。 构成：用NH 4 OH水解Ti（或TiCl 4或ZrCl 4）水溶液，用碱处理剂（例如NaOH）调节至> = 7.1pH，用水洗涤，倾出，以除去Cl离子 。 该溶液与强碱性水溶液中与Ti或Zr近似等摩尔的量的Ba，Sr和Ca的至少一种水溶性盐[例如Ba（OH）2]反应。 因此，制备了具有高的可靠性而不产生由Cl形成的劣化的陶瓷冷凝器的模制品。
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公开(公告)号：JPS60108396A
公开(公告)日：1985-06-13
申请号：JP21217683
申请日：1983-11-11
Applicant: SONY CORP
Inventor： YORIZUMI MINEO , TAMURA HIDEMASA , MIYAZAWA HIROSHI
Abstract: PURPOSE:In growing single crystal by Czochralski method, to prepare high-quality single crystal having a given outer diameter and uniform composition, by stirring forcibly melt of raw material kept in a crucible by an agitating blade. CONSTITUTION:After the seed crystal 4 is immersed in the silicon melt in the crucible 10, the seed crystal 4 and the silicon melt 11 are pulled up through the elevating mechanism 2 rotating crystal and solidified to prepare silicon single crystal. The elevating mechanism 2 rotating crystal consists of the inner revolving shaft 5 to which the seed crystal 4 is attached, the outer revolving shaft 6 (the arm parts 7a and 7b, platinum lines 8a and 8b) to which the agitating blade 9 are fixed), and the shafts 5 and 6 in such a way that setting of number of revolutions and vertical movement are attained independently. By the use of the above-mentioned device, the single crystal is prepared under conditions wherein the melt 11 is forcedly stirred generally only by the agitating blade 9 and stirring effect by rotation of pulled crystal can be disregarded.
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公开(公告)号：JPS6086028A
公开(公告)日：1985-05-15
申请号：JP19503883
申请日：1983-10-18
Applicant: SONY CORP
Inventor： KAMIHIRA AKIRA , ARANAKA TOSHIKO , TAMURA HIDEMASA
Abstract: PURPOSE:To produce high-purity beta-MnO2 at a low cost, by adding nitric acid to electrolytic MnO2 or chemically synthesized MnO2, and carrying out the phase transition by heat treatment. CONSTITUTION:gamma-MnO2 such as the easily and economically available electrolytic MnO2 or chemically synthesized MnO2 is added with about 0.52g-equivalent of nitric acid, and heat-treated at about >=170 deg.C and at the lowest possible temperature to effect the quick phase-transition of the gamma-MnO2 to obtain high-purity beta-MnO2 having extremely small particle diameter without producing impurities such as Mn2O3, etc. The above heat treatment may be carried out repeatedly. The beta-MnO2 produced by the above process is suitable for the use in a solid electrolytic capacitor, a lithium cell, various catalysts, etc.
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公开(公告)号：JPS59227723A
公开(公告)日：1984-12-21
申请号：JP10059383
申请日：1983-06-06
Applicant: SONY CORP
Inventor： KAMIHIRA AKIRA , SUZUKI MASAYUKI , YAMANOI HIROSHI , TAMURA HIDEMASA
Abstract: PURPOSE:To prepare high-purity fine particles of lead stannate having uniform particle size, by reacting a hydrolyzate of tin compound or a soluble stannate with a lead salt in a aqueous solution from a neutral to an alkali side. CONSTITUTION:A reaction product obtained by hydrolyzing a tin compound such as tin chloride, tin nitrate, tin sulfate, etc. with an alkalizing agent such as NH4OH, NaOH, etc., or a soluble stannate such as sodium stannate, potassium atannate, etc. is reacted with a lead salt such as lead acetate, lead nitrate, lead chloride, etc. in an aqueous solution from a neutral to an alkali side, especially at about 8-12 in case of controlling crystallizability or at>= about 12pH in case of controlling particle diameter at about the boiling point. In the operation, a molar ratio of Pb/Sn is about 0.3-2.0, preferably 0.5-l.0. The prepared precipitate is washed, filtered, dried to give high-purity fine particles of lead stannate having very small and uniform particle size.
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Patent Agency Ranking
公开(公告)号：JPS59174528A
公开(公告)日：1984-10-03
申请号：JP4976583
申请日：1983-03-25
Applicant: Sony Corp
Inventor： KAMIHIRA AKIRA , YAMANOI HIROSHI , SUZUKI MASAYUKI , TAMURA HIDEMASA
IPC: C01G19/00
Abstract: PURPOSE: To manufacture fine and uniform barium stannate particles giving fine BaSnO
3 particles by heat treatment by reacting the hydrolyzate of an Sn compound or a soluble stannate with a water-soluble Ba 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 [Sn(OH)
6 ] is reacted with a water-soluble Ba salt such as Ba(OH)
2 or BaCl
2 in an aqueous strong alkali soln. of ≥13.0pH to manufacture fine BaSn(OH)
6 particles. BaSn(OH)
6 is deposited by said wet synthesis process and it is dehydrated by heat treatment to manufacture fine BaSnO
3 particles, so the resulting fine BaSnO
3 particles have a small and uniform particle size and high activity. Since mechanical pulverization is not carried out, impurities such as metallic oxide do not enter the particles.
COPYRIGHT: (C)1984,JPO&JapioAbstract translation: 目的：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物与水溶性Ba盐反应进行热处理，制造细小而均匀的锡酸钡颗粒，从而形成精细的BaSnO 3颗粒。 构成：将SnCl 4或SN（SO 4）2等Sn化合物或Na 2 [Sn（OH）6]等可溶性锡酸酯的水解物与Ba（OH）2或BaCl 2等水溶性Ba盐反应， 强碱性水溶液。 > 13.0pH，以制造精细的BaSn（OH）6颗粒。 通过所述湿式合成法沉积BaSn（OH）6，通过热处理脱水以制备精细的BaSnO 3颗粒，所得到的细小的BaSnO 3颗粒具有小而均匀的粒度和高活性。 由于不进行机械粉碎，金属氧化物等杂质不能进入粒子。
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公开(公告)号：JPS59156915A
公开(公告)日：1984-09-06
申请号：JP3136983
申请日：1983-02-25
Applicant: Sony Corp
Inventor： KAMIHIRA AKIRA , YAMANOI HIROSHI , SUZUKI MASAYUKI , TAMURA HIDEMASA
IPC: C01G19/00
Abstract: PURPOSE: To manufacture fine CaSnO
3 particles having a uniform particle size and high activity by depositing CaSn(OH)
6 by a wet synthesis method and by 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 calcium salt such as calcium oxide in an aqueous strong alkali soln. of ≥ about 11pH. The reaction temp. is ordinary temp. or above, the reaction time is ≥ about 3min, and the molar ratio of Ca/Sn is ≥ about 0.1. The resulting CaSn(OH)
6 is dehydrated by heat treatment at ≥ about 650°C to obtain fine CaSnO
3 powder.
COPYRIGHT: (C)1984,JPO&JapioAbstract translation: 目的：通过湿式合成法沉积CaSn（OH）6，并通过热处理使其脱水，制造具有均匀粒径和高活性的精细CaSnO 3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在强碱性水溶液中与水溶性钙盐如氧化钙反应。 > =约11pH。 反应温度 是普通的温度 或以上，反应时间> = 3min左右，Ca / Sn摩尔比> 0.1左右。 所得CaSn（OH）6通过> =约650℃的热处理而脱水，得到细小的CaSnO 3粉末。
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公开(公告)号：JPS58194754A
公开(公告)日：1983-11-12
申请号：JP7725382
申请日：1982-05-08
Inventor： SAITOU MAKI , ISHIKAWA REIJI , MORI TOSHIO , TAMURA HIDEMASA , YAMASHITA TOSHIHARU , NAKAGAWA KENJI
CPC classification number: C03C3/076
Abstract: PURPOSE: A white glass ball that is a ball of glass containing SiO
2 , TiO
2 and Li
2 O in a specific proportion, thus showing high whiteness, homogeniety and roundness.
CONSTITUTION: A starting material containing at least 85wt% of a composition consisting of 50W80wt% of SiO
2 , 8W40wt% of TiO
2 and 8W17wt% of LiO
2 is melted in a crucible by heating, cooled rapidly into glass and crushed. Then, the crushed particles are passed through the flame of a burner so that they are melted to form spheres by their surface tension, cooled rapidly into transparent or translucent glass balls. The resultant balls are heat-treated in a temperature range from the glass transition point or softening point to the crystallization point for 5W20hr to form nuclei, further in a temperature range from the nucleating point to the crystallization point to form separately the particle parts 1 having the first phase rich in SiO
2 and the parts 2 poorer in SiO
2 content than in the first phase, resulting in optically boundary surfaces 3 caused by difference in refractive index between them.
COPYRIGHT: (C)1983,JPO&JapioAbstract translation: 目的：一种白玻璃球，它是一种玻璃球，其特定比例含有SiO2，TiO2和Li2O，因此显示高白度，均匀性和圆度。 构成：含有至少85重量％的由50-80重量％的SiO 2，8-40重量％的TiO 2和8-17重量％的LiO 2组成的原料的原料通过加热在坩埚中熔化，迅速冷却成玻璃并粉碎。 然后，粉碎的颗粒通过燃烧器的火焰，使其通过其表面张力熔化形成球体，迅速冷却成透明或半透明的玻璃球。 将所得球在从玻璃化转变点或软化点到结晶点的温度范围内热处理5-20小时，以在从成核点到结晶点的温度范围内进一步形成核，以分别形成颗粒部分 1，其中第一相富含SiO 2，SiO 2含量比第一相稀少的部分2，导致由它们之间的折射率差引起的光学界面3。
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公开(公告)号：JPS5423020A
公开(公告)日：1979-02-21
申请号：JP8778977
申请日：1977-07-21
Applicant: SONY CORP
Inventor： MAKINO YOSHIMI , TAMURA HIDEMASA , ASO KOUICHI , KAMIHIRA AKIRA , ITOU MORIYASU
Abstract: PURPOSE:To provide an amorphous magnetic iron alloy contg. Cr, Si and B in a specified ratio and having a low magnetostriction constant, superior magnetic characteristics to external stress, and a high magnetic flux density, which is useful as a high density recording head materal.
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公开(公告)号：JPH10158828A
公开(公告)日：1998-06-16
申请号：JP32426496
申请日：1996-12-04
Applicant: SONY CORP
Inventor： TAMURA HIDEMASA , YOKOYAMA NORIO , SHIMIZU EIICHI , SASAKI FUMIO
Abstract: PROBLEM TO BE SOLVED: To obtain a sputtering target small in the quantity of particles formed at the time of sputtering by forming the face to be subjected to sputtering in a sputtering target into a rugged face, executing mirror finishing and regulating the arithmetic average roughness to specified value or below. SOLUTION: A billet composed of a Ti material is subjected to prescribed heat treatment and forging treatment and is thereafter subjected to rolling treatment and machining to form into a disk-shaped sputtering target 1. The sputtering face 2 therein is subjected to machining into a rugged face having a prescribed curvature R, and furthermore, mirror finishing is executed to regulate the arithmetic average roughness Ra thereof to
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