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41. 发明专利

JPH06160256A METHOD AND APPARATUS FOR DECOMPOSING SAMPLE 失效
公开(公告)号：JPH06160256A
公开(公告)日：1994-06-07
申请号：JP20366592
申请日：1992-07-30
申请人： TOSHIBA CORP
发明人： TAKENAKA MIYUKI , HAYASHI MASARU , MATSUNAGA HIDEKI , KOZUKA SHOJI , YABUKI MOTOO
IPC分类号： G01N1/28 , G01N30/02 , G01N30/06
摘要： PURPOSE:To decompose a sample efficiently by cooling gas produced by heating solvent for decomposing the sample in an enclosed vessel and absorbing the gas into pure water contained while being spaced apart therefrom thereby decomposing the sample immersed in the pure water by means of the solvent absorbed into the pure water. CONSTITUTION:Cover 1a of an enclosed vessel 1 is removed and an acid liquid A is injected therein. A container 3 is then set above the vessel 1 and pure water is filled in the container 3. A sample is then immersed in the pure water and the cover 1a is applied onto the container 3 thus closing the container tightly. Botton part of the vessel 1 is then heated by heating means 7 thus heating the acid liquid A. Consequently, the acid liquid A evaporates and intrudes through a vent 3a into the container 3. Since the interior of the container 3 is cooled forcibly by means of a cooling pipe 5, the acid vapor is absorbed into the pure water in the container 3 thus recovering a high purity acid liquid A. In this regard, impurities in the acid liquid A do not evaporate because of the atmospheric pressure and thereby extremely high purity acid vapor is obtained. The sample is decomposed by the high purity acid liquid A to produce a solution causing no external contamination.

42. 发明专利

JPH04114951A PRODUCTION OF HIGH-DIELECTRIC PORCELAIN COMPOSITION 失效
公开(公告)号：JPH04114951A
公开(公告)日：1992-04-15
申请号：JP22791590
申请日：1990-08-31
申请人： TOSHIBA CORP
发明人： KANAI HIDEYUKI , YAMASHITA YOHACHI , FURUKAWA OSAMU , HARADA MITSUO , HAYASHI MASARU , ENDO HIROSHI
IPC分类号： C04B35/00 , C01B33/00 , H01B3/00
摘要： PURPOSE:To improve its electrical characteristics and humid-load resistance characteristics by blending respective constituting elements in a desired composition ratio, baking the unbaked material in the air and subsequently heat treating the baked material in a high-concentration oxygen atmosphere. CONSTITUTION:Pb in an amount of 30-70wt.% on PbO base is blended with metal oxides such as MnO2, Co2O3, La2O3, Sb2O3, NiO, MgO and ZrO2 in a desired ratio and the resultant mixture is calcined at 700-800 deg.C. After grinding, a binder, an organic solvent, etc., are added thereto and the resultant mixture is formed to obtain the unbaked material. The unbaked material is then baked in the air at 900-1150 deg.C for 0.5-3hr and heat treatment is subsequently carried out in a high-concentration oxygen atmosphere of 21-100vol% oxygen concentration at 600-1000 deg.C for 0.25-150hr, thus obtaining the objective perovskite-type high-dielectric porcelain composition containing Pb as its constituting element.

43. 发明专利

JPH02262056A METHOD FOR ANALYZING SINTERED BODY OF ALUMINUM NITRIDE 失效
公开(公告)号：JPH02262056A
公开(公告)日：1990-10-24
申请号：JP8359489
申请日：1989-03-31
申请人： TOSHIBA CORP
发明人： HAYASHI MASARU , YABUKI MOTOHISA , HASHIMOTO YOSHIMI
IPC分类号： G01N31/00 , G01N33/38
摘要： PURPOSE:To determine the crystal grain and the grain boundary phase of AlN by analyzing a sample liquid wherein the sintered body of AlN is treated with alkali solution and the crystal grains are dissolved, and a sample liquid wherein the grain boundary phase which is not dissolved is vitrified and the glass is dissolved with inorganic acid. CONSTITUTION:A specified amount of powder 5 of the sintered body of AlN is inputted in a round flask 2, and 2N-NaOH solution 6 is added. The material is heated on a magnetic stirrer 1. After cooling, 6N-HC is slowly added into the solution in the flask 2 through a cooler 4, and the reacted solution is filtered. The filtered liquid is diluted with distilled water. The first sample solution wherein crystal grains are dissolved is prepared. Then, undissolved grain boundary phase is inputted into a platinum crucible and ashed with a burner. Thereafter the material is fused with Na2CO3 powder and vitrified. The material is dissolved with HCl and diluted with distilled water. Thus, the second sample solution wherein the grain boundary phase is dissolved is prepared. The sample liquid is analyzed with the solutions.

44. 发明专利

JPH01227895A COMPRESSOR 失效
公开(公告)号：JPH01227895A
公开(公告)日：1989-09-12
申请号：JP5406788
申请日：1988-03-08
申请人： TOSHIBA CORP
发明人： HATANAKA TATSUYA , INABA MICHIHIKO , SATO SHINOBU , HAYASHI MASARU
IPC分类号： F04C29/00
摘要： PURPOSE:To gain a compressor including a friction member of which the base metal is coated with silicon nitride to provide the superior wear resistance characteristics for a long period by determining the atomic proportion of Si(silicon)/N(nitride) in composition of a part or whole of the silicon nitride coat to be lower than the specific value. CONSTITUTION:A shaft 2, a roller 6, a blade 7, a cylinder A through which said blade 7 passes and a heating are called friction member. Fine irregular base metal of at least one of these friction members has the specified fine surface roughness and is coated with ceramics. In the friction member of which the base metal is coated with silicon nitride, a part or whole of the composition of the silicon nitride coat is set as Si/N

45. 发明专利

JPH01122922A OXIDE SUPERCONDUCTOR 失效
公开(公告)号：JPH01122922A
公开(公告)日：1989-05-16
申请号：JP27912087
申请日：1987-11-06
申请人： TOSHIBA CORP
发明人： MATSUNAGA HIDEKI , HAYASHI MASARU , NIBU HIROMI , FUKUSHIMA SHIN
IPC分类号： C04B35/00 , C01G1/00 , C01G3/00 , C04B35/45 , H01B12/00 , H01L39/12
摘要： PURPOSE:To enlarge a critical current density and to improve characteristics with time of an oxide superconductor of perovskite type containing an Ln element, AE element and Cu, by suppressing content of U and Th to an extremely small amount. CONSTITUTION:An oxide superconductor having structure of perovskite type containing an Ln element (Ln is at least one of Y, La, Sc, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb and Lu), an AE element (at least one of Ba, Ca and Sr) and copper, wherein total content of Ln element and AE element is

46. 发明专利

JPS63303863A ALUMINUM NITRIDE SINTERED BODY HAVING HIGH THERMAL CONDUCTIVITY AND ITS PRODUCTION 失效
公开(公告)号：JPS63303863A
公开(公告)日：1988-12-12
申请号：JP11081387
申请日：1987-05-08
申请人： TOSHIBA CORP
发明人： HORIGUCHI AKIHIRO , KASORI MITSUO , UENO FUMIO , SATO YOSHIKO , TSUGE AKIHIKO , ENDO HIROSHI , HAYASHI MASARU , SHINOZAKI KAZUO
IPC分类号： C04B35/581 , C04B35/58
摘要： PURPOSE:To produce the title dense AlN sintered body having high thermal conductivity by mixing the powder of AlN having a low content of impurity oxygen and having specified particle diameter and a rare-earth element compd. in a specified ratio, molding the mixture, and then calcining the obtained compact under specified conditions. CONSTITUTION:The AlN powder contg. =4hr in a reducing atmosphere contg. N2 under reduced pressure. By this method, an AlN sintered body having high thermal conductivity, consisting of the AlN single phase, and having 3.120-3.285g/cm density, >=7mum AlN crystal grain diameter, and >=200W/m.K (25 deg.C) thermal conductivity is obtained.

47. 发明专利

JPS61295339A MANUFACTURE OF HIGH PURITY MOLYBDENUM OF TUNGSTEN 失效
公开(公告)号：JPS61295339A
公开(公告)日：1986-12-26
申请号：JP13608785
申请日：1985-06-24
申请人： TOSHIBA CORP
发明人： ENDO HIROSHI , IIRI SHIGEO , HAYASHI MASARU , YAMASHITA TSUTOMU
IPC分类号： C22B34/34 , C22B34/36
摘要： PURPOSE:To obtain extremely high purity Mo or W powder, by bringing aq. soln. obtd. by decomposing material powder of Mo or W with H2O2 water and strong acid, into contact with cation exchange resin, heating and condensing the obtd. aq. soln. to solid material and hydrogen reducing it. CONSTITUTION:Mo or W powder contg. a much quantity of impurity controlled usually to 0.1-100mum grain size especially 1-30mum is decomposed by H2O2 water adjusted to 5-35wt% especially 20-35wt% concn. and strong acid. Acid concn. thereat regulated to

48. 发明专利

JPS61209918A CONCENTRATING DEVICE FOR MOLYBDENUM OR TUNGSTEN SOLUTION 失效
公开(公告)号：JPS61209918A
公开(公告)日：1986-09-18
申请号：JP4925785
申请日：1985-03-14
申请人： TOSHIBA CORP
发明人： ENDO HIROSHI , IIRI SHIGEO , HAYASHI MASARU , YAMASHITA TSUTOMU
IPC分类号： C01G39/00 , C01G41/00
摘要： PURPOSE:To obtain a concentrating device capable of prepg. high purity powder of Mo or W by providing a closed vessel for heating and concentrating solution of Mo or W capable of performing evaporation of the soln. under reduced pressure. CONSTITUTION:A concentration device is provided with a closed vessel 1, a heating means 3 provided to the external periphery of the vessel 1, and an evacuating means 4 connected to the vessel 1. For example, a vessel 2a contg. Mo soln. 2 to be concentrated is laid in the bottom of a box 1a and an upper cover 1b is set to the box 1a air-tightly. A means 4 is then operated to evacuate the inside of the vessel 1, and a means 3 is also operated. Thus, heating and concentration is performed under specified reduced pressure and temp. When the water in the soln. 2 is removed by evaporation, the operation of the means 3, 4 are stopped and cocks 4a, 5a are changed over. Clean air through an air filter 5 is introduced into the vessel 1 to return the pressure to the normal pressure, then the cover 1b is removed and concentrated solid product is taken out. When the product is reduced with H2, Mo powder having high purity is obtd.

49. 发明专利

JPS61201707A PRODUCTION OF MOLYBDENUM OR TUNGSTEN POWDER HAVING HIGH PURITY 失效
公开(公告)号：JPS61201707A
公开(公告)日：1986-09-06
申请号：JP4123885
申请日：1985-03-04
申请人： TOSHIBA CORP
发明人： ENDO HIROSHI , IIRI SHIGEO , HAYASHI MASARU , YAMASHITA TSUTOMU , YAMAGUCHI SATORU
IPC分类号： B22F9/22 , C01G41/02
摘要： PURPOSE:To obtain powder of Mo or W having high purity of ppb order by decomposing coarse powder of Mo or W by hydrogen peroxide water, bringing the aq. soln. thereof into contact with a cation exchange resin, heating and concentrating the resulted aq. soln. and subjecting the solidified matter to hydrogen reduction. CONSTITUTION:The coarse powder of Mo or W is dissolved into the hydrogen peroxide water having about 5-35wt% concn. of hydrogen peroxide. Such aq. soln. is brought into contact with the cation exchange resin so that the impurities existing as cations in the aq. soln. are adsorbed to the cation exchange resin. The aq. soln. after the treatment is heated to evaporate moisture by which the concd. solid matter consisting of MoO3 or WO3 is obtd. The concd. solid matter is heated and reduced in a hydrogen atmosphere by which the powder of Mo or W is obtd. The Mo or W powder of high purity in which the content of the impurities is decreased to ppb order is easily obtd. by the above-mentioned method.

50. 发明专利

JPS6136122A Preparation of manganese ferrite 失效
标题翻译：锰铁矿的制备
公开(公告)号：JPS6136122A
公开(公告)日：1986-02-20
申请号：JP15757484
申请日：1984-07-30
申请人： Toshiba Corp
发明人： ENDO HIROSHI , NAKAMURA SHINICHI , IIRI SHIGEO , HAYASHI MASARU , YAMASHINA YASUYUKI , YAMASHITA TSUTOMU
IPC分类号： C01G28/00 , B01J20/02 , B01J20/06 , C01G49/00
摘要： PURPOSE: To produce manganese ferrite having high adsorptivity of Fe ion, Cr ion, etc., by forming a specific manganese ferrite precursor, and calcining the product.
CONSTITUTION: An aqueous solution containing ferrous ion, ferric ion and manganese ion at a stoichiometric ratio corresponding to the manganese ferrite composition of formula [M is Mn(II) or Fe(II); the molar ratio of Fe(III) is 0.01W0.2] and having a pH of ≥12 is left to stand at about 70W150°C for about 20minW1hr to precipitate the crystal of manganese ferrite precursor. The precursor crystal is washed with water, dried, and granulated optionally using a binder such as polyvinyl alcohol, and calcined in a nonoxidizing atmosphere at ≥600°C to obtain the objective manganese ferrite. The manganese ferrite is suitable as an inorganic ion adsorbent to be used in the feed water piping of a steam power plant, etc.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过形成特定的锰铁氧体前体来制备Fe离子，Cr离子等吸附性高的锰铁氧体，并煅烧该产物。构成：含有铁离子，铁离子和锰离子的水溶液，其化学计量比对应于式[M的锰铁氧体组成为Mn（II）或Fe（II））; Fe（III）的摩尔比为0.01-0.2]，并且将pH> = 12的摩尔比在约70-150℃下放置约20分钟-1小时以沉淀锰铁氧体前体的晶体。前体晶体用水洗涤，干燥，任选地使用粘合剂如聚乙烯醇造粒，并在> 600℃的非氧化气氛中煅烧，得到目标锰铁氧体。锰铁氧体适合用作蒸汽发电厂等的给水管道中的无机离子吸附剂。

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