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71. 发明专利

JPS5344494A PRODUCTION OF CARRIER 失效
公开(公告)号：JPS5344494A
公开(公告)日：1978-04-21
申请号：JP11967676
申请日：1976-10-04
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： ABE KAZUMITSU , RIKIMARU HIROAKI , YAMAZAKI IWAO , HASEGAWA HIROSHI
IPC分类号： B01J21/06 , B01J37/00
摘要： PURPOSE:To obtain a carrier with sufficient mechanical strength, porosity, specific surface area, pore distribution, or the like by adding titanium hydroxide gel or sol to metatitanic acid or/and orthotitanic acid and calcining them at a specified temp. or below.

72. 发明专利

JPH11335709A PRODUCTION OF FINE SPHERICAL POWDER OF METAL NICKEL 失效
公开(公告)号：JPH11335709A
公开(公告)日：1999-12-07
申请号：JP13968498
申请日：1998-05-21
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： ABE KAZUMITSU , KAMISAKA NARIFUMI , FUKAI KIYOSHI , NAGANO KAZUHIKO , OGAMA SHINJI , NAKAO HIROSHI
IPC分类号： C01G53/06 , B22F9/22
摘要： PROBLEM TO BE SOLVED: To provide a method for producing the fine spherical powder of metal nickel, which has an average particle size in the range of from 0.1 μm to several μm and a narrow particle size distribution, and which is suitable as internal electrodes of the monolithic ceramic capacitor. SOLUTION: The objective fine spherical powder is produced by first solubilizing nickel carbonate together with ammonia into an aqueous solution of ammonium hydrogen carbonate while adjusting the pH of the solution in the range of 8.0-11.5, then mixing the resulting aqueous solution of a nickel salt with an organic solvent to obtain an emulsion, aspirating the obtained emulsion under vacuum to remove successively ammonia and water by evaporation from the aqueous solution of nickel salt and to break the emulsion, recovering the precipitated, fine spherical nickel carbonate powder from the aqueous phase, after drying the powder, if necessary, firing the dried powder under oxidative atmosphere to obtain nickel oxide, and finally reducing the resulting powder under hydrogen atmosphere at elevated temp.

73. 发明专利

JPH0620541B2 失效
公开(公告)号：JPH0620541B2
公开(公告)日：1994-03-23
申请号：JP28011788
申请日：1988-11-05
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： YASUDA MASAHIRO , FUKUNAGA TAKESHI , ABE KAZUMITSU
IPC分类号： A23B7/144 , A23B7/152 , B01J20/04 , B01J20/06

74. 发明专利

JPH0559847B2 失效
公开(公告)号：JPH0559847B2
公开(公告)日：1993-09-01
申请号：JP12413288
申请日：1988-05-21
申请人： MITSUBISHI HEAVY IND LTD , SAKAI CHEMICAL INDUSTRY CO
发明人： SERA TOSHIKUNI , MITSUOKA SHIGEAKI , MORII ATSUSHI , SUYAMA KOHEI , ABE KAZUMITSU , NAKATSUJI TADAO , BABA TOSHIKATSU , MATSUDA TOSHIAKI
IPC分类号： C01G23/00 , B01J21/06 , B01J32/00 , C04B35/46

75. 发明专利

JPH0594717A COMPOSITE DIELECTRIC 失效
公开(公告)号：JPH0594717A
公开(公告)日：1993-04-16
申请号：JP40628790
申请日：1990-12-05
申请人： MATSUSHITA ELECTRIC WORKS LTD , SAKAI CHEMICAL INDUSTRY CO
发明人： YAMAKAWA SEISHIRO , TSUZAKI MICHIMASA , NOZUE AKIYOSHI , KOMORI KIYOTAKA , FUJIKI TOMOYUKI , ABE KAZUMITSU , AOKI MASASHI
IPC分类号： C08K3/22 , C08K7/16 , C08K7/22 , H01B3/00 , H01G4/20
摘要： PURPOSE:To provide a composite dielectric capable of effectively exhibiting a dielectric constant enhancement effect by dispersing, in a resin, a porous inorganic dielectric having an average particle diameter of 5--100mum and an average specific surface area of 0.3-7.0m /gr. CONSTITUTION:A resin having a small high frequency loss such as a PPO resin and a fluororesin is preferable for a high frequency region of a composite matrix resin. A particle having a perovskite type crystalline structure such as BaTiO3, SrTiO3 is used as a porous inorganic dielectric particle. Unevenness is generated on the dielectric if a diameter of the particle exceeds 100mum, thus deteriorating a dielectric loss characteristic. Meanwhile, a dielectric constant enhancement effect becomes insufficient if the diameter is less than 5mum. Moisture resistance is deteriorated in the case where a specific surface area exceeds 7.0-m /gr while it is liable to become insufficient in the case of less than 0.3m /gr.

76. 发明专利

JPH03148186A LAMINATION TYPE COMPOSITE PIEZOELECTRIC BODY AND ITS MANUFACTURE 失效
公开(公告)号：JPH03148186A
公开(公告)日：1991-06-24
申请号：JP28662489
申请日：1989-11-02
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： AOKI MASASHI , FUKAI KIYOSHI , ABE KAZUMITSU , SAKATA KOICHIRO , TAKENAKA TADASHI
IPC分类号： H01L41/39
摘要： PURPOSE:To reduce temperature dependency by sintering a specific laminated bonded body at a temperature which does not cause mutual diffusion among layers and by making an absolute value of a temperature coefficient of a frequency constant thereof smaller than an absolute value of a temperature coefficient of a frequency constant of any or either of layers. CONSTITUTION:Each layer of a laminated bonded body is formed by a green sheet of low temperature sintering PZT (lead titanate zirconate which is a two-element solid solution of lead zirconate and lead titanate) piezoelectric ceramics which can be sintered causing no or little mutual diffusion among layers; and one layer thereof is formed by a green sheet of PZT piezoelectric ceramics whose positive and negative of a temperature coefficient of a frequency constant are different from positive and negative of a temperature coefficient of other layers. The laminated bonded body is sintered at a temperature which causes no or little mutual diffusion among layers. It is constituted so that an absolute value of a temperature coefficient of a frequency constant thereof is smaller than an absolute value of a temperature coefficient of a frequency constant of any or either of layers. Thereby, temperature dependency of piezoelectric body can be reduced.

77. 发明专利

JPH0331495B2 失效
公开(公告)号：JPH0331495B2
公开(公告)日：1991-05-07
申请号：JP18426283
申请日：1983-10-01
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： ABE KAZUMITSU , NAKATSUJI TADAO
IPC分类号： B01D53/94 , B01J21/06 , B01J23/22 , B01J23/28 , B01J23/30 , B01J23/72 , B01J23/74 , B01J23/745 , B01J35/04 , B01J35/06 , B01J37/02

78. 发明专利

JPH02243565A PRODUCTION OF CALCINED COMPACT 失效
公开(公告)号：JPH02243565A
公开(公告)日：1990-09-27
申请号：JP6469589
申请日：1989-03-15
申请人： SAKAI CHEMICAL INDUSTRY CO
发明人： FUKAI KIYOSHI , ABE KAZUMITSU , IGARASHI EIJI
IPC分类号： C04B35/49 , H01B3/12
摘要： PURPOSE:To produce piezoelectric ceramics, excellent in piezoelectric characteristics and made of lead zirconate titanate by heat-treating fine particulate crystalline zirconium titanate and lead oxide, forming powder of the resultant lead zirconate titanate and calcining the formed compact at a specific low temperature. CONSTITUTION:One mol powdery crystal of zirconium titanate, expressed by the general formula ZrxTi1-xO2 (x is 0.3-0.7) and having

79. 发明专利

JPH01108121A PRODUCTION OF SUPERCONDUCTING MATERIAL 失效
公开(公告)号：JPH01108121A
公开(公告)日：1989-04-25
申请号：JP26567787
申请日：1987-10-20
申请人： MITSUBISHI MINING & CEMENT CO , SAKAI CHEMICAL INDUSTRY CO
发明人： YAMAMOTO TAKASHI , KAMIYAMA MAMORU , ONO MIKIYA , ABE KAZUMITSU
IPC分类号： C04B35/00 , C01G1/00 , C01G3/00 , C04B35/45 , H01B12/00 , H01B13/00 , H01L39/12
摘要： PURPOSE:To obtain a superconducting material having excellent superconducting characteristics at a low cost, using a low-temperature calcination, by dispersing oxides, etc., of an alkaline-earth element and rare-earth element in an organic solvent, forming copper oxalate in the dispersion medium and filtering and calcining the product. CONSTITUTION:Oxides or carbonates (e.g. BaCO3 and Y2O3) of an alkaline-earth element (e.g. Ba) and yttrium and/or a lanthanide element are dispersed in a dispersion medium composed of an organic solvent (e.g. ethanol). The dispersion medium is added with >=1 equivalent of oxalic acid based on the copper and then with an organic solvent solution of a prescribed amount of a copper salt (e.g. copper nitrate) to form copper oxalate in the dispersion medium. The solid component or coprecipitate is separated from the dispersion medium and calcined at about 720-850%oC to obtain a superconducting material composed of oxides of an alkaline-earth metal, yttrium and/or lanthanide element and copper.

80. 发明专利

JPS6445726A PRODUCTION OF TITANIUM OXIDE BURNED PRODUCT 失效
公开(公告)号：JPS6445726A
公开(公告)日：1989-02-20
申请号：JP12413588
申请日：1988-05-21
申请人： MITSUBISHI HEAVY IND LTD , SAKAI CHEMICAL INDUSTRY CO
发明人： SERA TOSHIKUNI , MITSUOKA SHIGEAKI , KOBAYASHI TAKAFURU , SETO TORU , MIYAKE JUNSUKE , ABE KAZUMITSU , NAKATSUJI TADAO , BABA TOSHIKATSU , MATSUDA TOSHIAKI
IPC分类号： B01J23/24 , B01J21/06 , B01J32/00 , C01G23/00 , C04B35/46
摘要： PURPOSE:To enable production of titanium oxide calcined product having large surface area, excellent heat resistance as well as excellent strength after molding and suitable as a carrier or catalyst, by calcining solated metatitanic acid containing fine-particle silicic acid and W and Mo compounds. CONSTITUTION:(a) Fine-particle silicic acid known as white carbon of another name and having extremely large specific surface and (b) tungsten oxide and W compound which is a precursor capable of forming tungsten oxide by burning and/or Mo compound similar to the W compound are used. Metatitanic acid is preferably solated and component a and component b are added to the sol and mixed and the mixture is then burned. After component a and component b and added to metatitanic acid, metatitanic acid may be solated and mixed. Thus components a and b can be uniformly mixed with metatitanic acid. The mixture of metatitanic acid and components a and b obtained thus is dried and then calcined at about >=800 deg.C and pulverized to provided the powdery calcined product.

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