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61. 发明专利

JPH0526727B2 失效
公开(公告)号：JPH0526727B2
公开(公告)日：1993-04-19
申请号：JP26298184
申请日：1984-12-14
申请人： UBE INDUSTRIES
发明人： OODAN KYOJI , HASHIMOTO KAZUO , FUJINAGA MASATAKA
IPC分类号： C01G49/00 , H01F1/11

62. 发明专利

JPS63170220A BARIUM FERRITE MAGNETIC POWDER AND ITS PRODUCTION 失效
公开(公告)号：JPS63170220A
公开(公告)日：1988-07-14
申请号：JP177487
申请日：1987-01-09
申请人： UBE INDUSTRIES
发明人： ODAN KYOJI , KIMURA TAKAYUKI , HASHIMOTO KAZUO
IPC分类号： C01G49/00 , H01F1/11
摘要： PURPOSE:To obtain the titled magnetic powder which is suitable for magnetic recording medium for high-density recording and has narrow particle size distribution, high saturation magnetization and required coercive force, by subjecting slurry wherein a specified starting raw material is dissolved in water and NaOH is added to produce ppt. to hydrothermal treatment and thereafter mixing flux with the produced ppt. and calcining the mixture and washing it. CONSTITUTION:A starting raw material consisting of the compd. of respective elements having the proportion of 3-11g atom Fe for 1g atom Ba, (x)g atom M1 (one or more kinds of metals selected from among Ni, Co, Cu, Mg, Mn and Zn) for 12-2xg atom Fe , (x-y)g atom M2 (one or more kinds of metals selected from among Ta, Sb, Nb, Zr and Ti) and (y) g atom Fe is dissolved in water. Then slurry wherein alkali hydroxide is added to this aq. soln. so that the concn. in the soln. after mixing is regulated to >=3mol/l to produce ppt. is subjected to hydrothermal treatment at 130-270 deg.C. After washing produced fine crystalline ppt. with water, 10-180wt.% flux such as NaCl is mixed therewith and the mixture is calcined at 700-950 deg.C and washed and the titled hexagonal lamellate magnetic powder shown in formula (n=0.8-1.0, x=0.5-1.5, y=0.01-1.5 and x>=y) is obtained.

63. 发明专利

JPS60151224A MANUFACTURE OF BARIUM FERRITE POWDER 失效
公开(公告)号：JPS60151224A
公开(公告)日：1985-08-09
申请号：JP478484
申请日：1984-01-17
申请人： UBE INDUSTRIES
发明人： OODAN KIYOUJI , HASHIMOTO KAZUO , FUJINAGA MASATAKA
IPC分类号： C01G49/00 , H01F1/11
摘要： PURPOSE:To obtain barium ferrite powder having superior dispersity by adding an alkali to an aqueous metallic salt soln. contg. barium ions and iron ions in a specified ratio, heating the soln., adding soldium chloride and hydrochloric acid, and carrying out drying and calcination. CONSTITUTION:Water soluble metallic salts having relatively high solubility such as ferric nitrate and barium chloride are dissolved in water to prepare an aqueous metallic salt soln. contg. 5-10g atom iron per 1g atom barium in the form of ions. To the soln. is added an aqueous soln. contg. an alkali such as sodium hydroxide by an amount (equiv.) 1-5 times the total amount of the metallic salts, and the mixed soln. is heated and held at 140-230 deg.C. Sodium chloride and hydrochloric acid are then added to keep the soln. at 7-10pH, and the soln. is dried with a drum drier or the like. The resulting product is calcined at 650- 850 deg.C, washed, and dried to obtain desired barium ferrite powder.

64. 发明专利

JP2002029751A PZT CRYSTAL FILM AND METHOD FOR PRODUCING THE SAME 失效
公开(公告)号：JP2002029751A
公开(公告)日：2002-01-29
申请号：JP2000170566
申请日：2000-06-07
申请人： UBE INDUSTRIES
发明人： HASHIMOTO KAZUO , HASHIMOTO TOMONORI , NISHIDA AKIO
IPC分类号： C01G25/00 , H01G4/12 , H01G4/33 , H01L41/187 , H01L41/23 , H01L41/317 , H01L41/39 , H01L41/24
摘要： PROBLEM TO BE SOLVED: To provide a PZT crystal film excellent in moisture resistance, insulation resistance and dielectric loss and usable for electronic parts such as a capacitor and an actuator and to provide a method for producing the film. SOLUTION: The PZT crystal film is obtained by coating the hydrophilic part of a PZT crystal film comprising Pb(ZrxTi1-x)O3 (where 0

65. 发明专利

JP2001006965A CERAMIC CAPACITOR AND ITS MANUFACTURE 失效
公开(公告)号：JP2001006965A
公开(公告)日：2001-01-12
申请号：JP17647399
申请日：1999-06-23
申请人： UBE INDUSTRIES
发明人： KONO TAKASHI , HASHIMOTO KAZUO , NISHIDA AKIO
IPC分类号： H01G4/12 , C04B35/49 , H01B3/00 , H01B3/12 , H01G4/33
摘要： PROBLEM TO BE SOLVED: To improve the withstand voltage of a ceramic capacitor without sacrificing the dielectric constant of the capacitor, by forming a dielectric layer composed of a perovskite type oxide on a substrate by a hydrothermal synthesis method, and successively forming an insulating protective layer composed of a manganese oxide and an electrode on the dielectric layer. SOLUTION: A ceramic capacitor is manufacturing in such a way that a dielectric layer composed of a perovskite type oxide is formed on a substrate containing at least Ti element in its surface even in a small quantity by a hydrothermal synthesis method. The dielectric layer contains at least a dielectric layer composed of a perovskite type oxide expressed by a formula, ABO3 (where, A represents one or more elements selected out of Ca, Sr, Ba, and Pb and B represents Ti and/or Zr) and formed by a hydrothermal synthesis method. Then an insulating protective layer composed of a manganese oxide is formed on the dielectric layer. Finally, an upper electrode is formed on the manganese oxide layer by plating, sputtering, vapor deposition, baking, etc.

66. 发明专利

JP2000331877A CERAMIC CAPACITOR AND ITS MANUFACTURE 失效
公开(公告)号：JP2000331877A
公开(公告)日：2000-11-30
申请号：JP14322399
申请日：1999-05-24
申请人： UBE INDUSTRIES
发明人： KONO TAKASHI , HASHIMOTO KAZUO , NISHIDA AKIO
IPC分类号： H01G4/12 , C04B35/49 , H01B3/12 , H01G4/33
摘要： PROBLEM TO BE SOLVED: To provide a thin-film ceramic capacitor which exhibits a high- electrostatic capacity and has a high withstand voltage. SOLUTION: With respect to the ceramic capacitor which has a substrate having the Ti element at least on its surface and constituting an electrode, a dielectric layer comprising perovskite oxide formed by a hydrothermal crystallization method on the substrate and an electrode formed on the dielectric layer, a part of the dielectrics layer contains a PZT(lead titanate zirconate) containing at least Mn formed by a hydrothermal crystallization method.

67. 发明专利

JP2000290016A PZT PIEZOELECTRIC CRYSTALLINE FILM 失效
公开(公告)号：JP2000290016A
公开(公告)日：2000-10-17
申请号：JP9755599
申请日：1999-04-05
申请人： UBE INDUSTRIES
发明人： NISHIDA AKIO , HASHIMOTO KAZUO , HASHIMOTO TOMONORI
IPC分类号： B01D9/02 , C01G33/00 , H01L41/187
摘要： PROBLEM TO BE SOLVED: To impart excellent surface smoothness and withstand to voltage and use in various devices by incorporating Nb in an amount of not more than specified amount based on the amount of Pb contained in a PZT piezoelectric crystal film which is formed on a base plate by hydrothermal synthesis. SOLUTION: To a PZT piezoelectric crystalline film composed of Pb(ZrxTi1-x) O3 (0

68. 发明专利

JP2000109398A COMPOSITE TITANIUM OXIDE FILM ELEMENT UNIT AND ITS PRODUCTION 失效
公开(公告)号：JP2000109398A
公开(公告)日：2000-04-18
申请号：JP27953798
申请日：1998-10-01
申请人： UBE INDUSTRIES
发明人： HASHIMOTO KAZUO , HASHIMOTO TOMONORI , TSUCHIE TAKANORI
IPC分类号： H01G4/10 , C23C28/00 , C23C28/04 , C30B29/32 , H01L41/09 , H01L41/187 , H01L41/317 , H01L41/331 , H01L41/39 , H01L41/24
摘要： PROBLEM TO BE SOLVED: To provide a composite titanium oxide thin film element unit obtained by easily and inexpensively forming a composite titanium oxide film in fine pattern form on the prescribed area of a substrate, and to provide the method for producing the unit. SOLUTION: This composite titanium oxide film element unit is obtained by providing a substrate in which at least its surface layer contains, as main component, Ni-P (nickel-phosphorus), then forming a film of titanium or titanium-containing material on the prescribed area of the substrate and selectively forming the composite titanium oxide layer only on the film surface of titanium or titanium-containing material by a hydrothermal method. The method for producing the composite titanium oxide film element unit is comprised of forming a Ni-P protective film on the prescribed area on a substrate containing titanium and selectively forming the composite titanium oxide film on the part without the protective film by the hydrothermal method.

69. 发明专利

JP2000026121A PRODUCTION OF THIN FILM OF COMPLEX LEAD OXIDE 失效
公开(公告)号：JP2000026121A
公开(公告)日：2000-01-25
申请号：JP19012498
申请日：1998-07-06
申请人： UBE INDUSTRIES
发明人： KONO TAKASHI , OKAMOTO MANABU , HASHIMOTO KAZUO
IPC分类号： C01G21/00 , H01B3/00 , H01B3/12 , H01B13/00
摘要： PROBLEM TO BE SOLVED: To easily produce a thin film of APbO3 (where A is at least one of Ba or Sr) as an electrically conductive material on various substrates over a wide area without requiring high temp. treatment necessary for the conventional paste process or for the formation of a thin film by the thermal decomposition reaction of a mixture of organometallic compds. or requiring facilitates and steps of electrolysis, etc. SOLUTION: A substrate with a perovskite type oxide on the surface, a substrate with Ti or Ti oxide on the surface or a substrate with Pb or Pb oxide on the surface is heated in an aq. alkali soln. contg. A ions (A is at least one of Ba or Sr) and Pb ions to form the objective thin film of APbO3 on the substrate.

70. 发明专利

JP2000007335A COMPOUND LEAD OXIDE AND PRODUCTION OF ITS THIN FILM 失效
公开(公告)号：JP2000007335A
公开(公告)日：2000-01-11
申请号：JP18104498
申请日：1998-06-26
申请人： UBE INDUSTRIES
发明人： KONO TAKASHI , OKAMOTO MANABU , HASHIMOTO KAZUO
IPC分类号： C01G21/00 , H01B3/00 , H01B5/14
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a compound lead oxide thin film, capable of easily producing the thin film of a conductive substance: APbO3 (A is at least one of Ba and Sr), not requiring a treatment at such a high temperature as by a conventional paste method or by a method for forming a thin film by thermally decomposing a mixture of organic metal compounds, capable of corresponding to a wide kind of substrates used as the base of the thin film and further to large areas, and not requiring processes or installations for electrolysis, etc. SOLUTION: This method for producing a thin film of APbO3 (A is at least one of Ba and Sr) comprises thermally treating a thin film comprising lead or its oxide formed on a substrate in an alkali aqueous solution containing the ion of A to form the thin film of the APbO3 on the substrate. The method for producing a thin film of APbO3 comprises coating a substrate with a solution containing lead element, thermally decomposing the coating layer at 100-400 deg.C, and subsequently thermally treating the formed lead oxide thin film in an alkali aqueous solution containing the ion of A (A is at least one of Ba and Sr) to form the thin film of APbO3 on the substrate.

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