专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1990012410A1 PROCESS FOR PRODUCING CERAMIC CAPACITORS HAVING VARISTOR CHARACTERISTICS 审中-公开
标题翻译：生产具有变压器特性的陶瓷电容器的工艺
公开(公告)号：WO1990012410A1
公开(公告)日：1990-10-18
申请号：PCT/JP1990000377
申请日：1990-03-20
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. , IGA, Atsushi
发明人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
IPC分类号： H01G04/12
CPC分类号： H01G4/35 , C04B35/47 , H01G4/1281 , Y10T29/417 , Y10T29/435
摘要： The element of this invention is used for the circuits of electronic devices to absorb noises and surges generated in the circuits. To achieve this object according to the invention, a perovskite-type oxide powder composed chiefly of SrTiO3 is admixed with a sintering accelerator which forms a liquid layer chiefly at high temperatures, a semiconductor-forming agent which is soluble chiefly in a solid of perovskite phase, a particle growth control agent for effecting porous sintering, and a grain boundary depletion layer forming agent that also serves as a particle growth control agent. They are kneaded, molded, sintered into a porous substance at a high temperature, reduced into a semiconductor, and subjected in an oxidizing atmosphere to a process of oxygen diffusion through voids and to an oxidizing process of the grain boundary depletion layer forming agent, to thereby form barriers on the grain boundaries and to form an electrode. The capacitor exhibits excellent performance of absorbing noises and surges.

2. 发明专利

JP2003086406A ZINC OXIDE-BASED SINTERED COMPACT, MANUFACTURING METHOD THEREFOR, AND ZINC OXIDE VARISTOR 审中-公开
公开(公告)号：JP2003086406A
公开(公告)日：2003-03-20
申请号：JP2001317447
申请日：2001-09-07
申请人： IGA ATSUSHI
发明人： IGA ATSUSHI
IPC分类号： C04B35/453 , H01C7/10 , H01F1/055
摘要： PROBLEM TO BE SOLVED: To solve the conventional problem of an antimony oxide having to be removed from a zinc oxide varistor, containing bismuth oxide as the main additive. SOLUTION: When the zinc oxide varistor is constituted by forming electrodes and a side-face insulating coat on a zinc oxide-based sintered compact, containing the bismuth oxide in an amount of 0.3 to 7.5 pts.wt., a tin oxide in an amount of 0.1 to 3.0 pts.wt., one to three kinds of iron group oxides selected from among cobalt oxide, a manganese oxide, and nickel oxide in an amount of 0.1 to 7.0 pts.wt., chromium oxide in an amount of 0.05 to 1.0 pts.wt., and aluminum oxide in the amount of 0.00001 to 0.05 pts.wt. in 100 pts.wt. zinc oxide, the varistor contains no antimony oxide and has superior electrical characteristics.

3. 发明专利

JP2003133569A METHOD AND APPARATUS FOR EVALUATING OUTPUT OF SOLAR BATTERY IN FIELD 审中-公开
公开(公告)号：JP2003133569A
公开(公告)日：2003-05-09
申请号：JP2001331990
申请日：2001-10-30
申请人： IGA ATSUSHI
发明人： IGA ATSUSHI
IPC分类号： H01L31/04
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for solving the conventional problem that an evaluation method having excellent flexibility and higher accuracy is not yet established for evaluating the output and the generation of power of a solar battery in a field, it is difficult to obtain a stable evaluation value due to a sudden change of irradiation and the spectrum of the sun light, and that the method of evaluating a Pmax operation (MPPT operation) in a field is not yet established. SOLUTION: The irradiation intensity of the sun light and I-V and P-V curves in a solar battery temperature during measurement are calculated from solar battery characteristic values and these are evaluated and compared with a voltage-current value. It is determined from the standard deviation of the output evaluation value that the irradiation intensity is stable and obtained data can be evaluated. The method for calculating a compensation coefficient for the temperature compensation of solar battery conversion efficiency has been developed. In addition, the method for verifying the effect of the Pmax operation (MPPT operation) during the interlaced operation has also been developed using the principle described above.

4. 发明专利

JP2001089228A ZINC OXIDE PORCELAIN COMPOSITION, ITS PRODUCTION METHOD AND ZINC OXIDE VARISTOR 失效
公开(公告)号：JP2001089228A
公开(公告)日：2001-04-03
申请号：JP26983099
申请日：1999-09-24
申请人： OSAKA PREFECTURE , IGA ATSUSHI
发明人： IGA ATSUSHI , MIYAMOTO DAIKI , MIYAMOTO TAKASHI
IPC分类号： H01C7/10 , C01G9/00 , C04B35/453
摘要： PROBLEM TO BE SOLVED: To obtain a zinc oxide varistor having superior electrical characteristics, high reliability to DC load and serge load and stability to heat treatment. SOLUTION: A powdery mixture containing Bi2O3, Sb2O3 and one or more oxides selected from at least ZnO, CoO or Co3O4, MgO, MnO or Mn2O3 or MnO2 and NiO in powdery zinc oxide is previously heat-treated to form a synthetic oxide. Three or more oxides selected from at least B2O3, CoO or Co3O4, Cr2O3, GeO2, La2O3, MgO, MnO or Mn2O3 or MnO2, Nb2O5, Nd2O3, NiO, PoO, Pr2O3, SiO2, SnO, Ta2O5, TiO2, WO3 and Y2O3 are added together with Al2O3 to the synthetic oxide and they are mixed, compacted in a disk shape and sintered. Electrodes are formed on both faces of the resulting zinc oxide- base porcelain composition and lead wires are connected to the electrodes to obtain the objective discoid varistor.

5. 发明专利

JP2000228302A ZINC OXIDE BASED PORCELAIN LAMINATED MEMBER, ITS MANUFACTURE AND ZINC OXIDE VARISTOR 失效
公开(公告)号：JP2000228302A
公开(公告)日：2000-08-15
申请号：JP2750199
申请日：1999-02-04
申请人： IGA ATSUSHI
发明人： IGA ATSUSHI
IPC分类号： H01C7/10 , C04B35/453
摘要： PROBLEM TO BE SOLVED: To provide a zinc oxide based varistor for low voltage which has small capacitance and superior surge absorbing characteristic of a zinc oxide based varistor, and its manufacturing method. SOLUTION: Zinc oxide based porcelains 11, 12 constituted of sintered members, whose main component is zinc oxide containing at least one from MnO, CoO, Fe2O3, NiO, MgO, Al2O3 and BeO are formed. An oxide film containing synthetic oxides, in which mixture composed of at least two oxides from Bi2O3, Sb2O3, B2O3, Cr2O3, PbO, TiO2, SiO2, SnO2, Ta2O5, GeO2, BaO, SrO, Y2O3, Pr2O3, CoO and MnO is thermally treated in the range of 400-700 deg.C is formed between the two zinc oxide based porcelains A heat treatment is performed at 700-1,000 deg.C, and zinc oxide based porcelain laminated members are formed. Electrodes 14, 15 are formed on the members, lead wires 16, 17 are fixed to the electrodes, and a zinc oxide based varistor 10 for low voltage having small capacitance is obtained.

6. 发明专利

JP2003109807A ZINC OXIDE BASED SINTERED BODY AND ITS MANUFACTURING METHOD AND ZINC OXIDE VARISTOR 审中-公开
公开(公告)号：JP2003109807A
公开(公告)日：2003-04-11
申请号：JP2001338569
申请日：2001-09-28
申请人： IGA ATSUSHI , OSAKA PREFECTURE
发明人： IGA ATSUSHI , MIYAMOTO DAIKI , MIYAMOTO TAKASHI
IPC分类号： C04B35/453 , H01C7/10
摘要： PROBLEM TO BE SOLVED: To develop a zinc oxide based sintered boy for a zinc oxide varistor, which has a superior non-linear resistance characteristic and high reliability and is stable to heat treatment, where a leak current, in particular, in a low- current region is small. SOLUTION: Mixed powder of bismuth oxide and antimony oxide is heat- treated at 900 deg.C and is then cooled and powdered to make synthetic powder containing bismuth oxide and antimony oxide, and mixed powder containing boron oxide and chromium oxide is heat-treated at 370 deg.C and is then cooled and powdered to make synthesis powder containing boron oxide and chromium oxide. Then the synthetic powder containing bismuth oxide and antimony oxide, the synthesis powder containing boron oxide and chromium oxide, iron group oxide powders at least selected from among cobalt oxide, manganese oxide and nickel oxide, and aluminum compound are added to zinc oxide and mixed, molded, and burned at 950 deg.C to manufacture the zinc oxide based sintered body.

7. 发明专利

JPH10308302A ZINC OXIDE-BASED PORCELAIN COMPOSITION AND ITS PRODUCTION AND ZINC OXIDE VARISTOR 失效
公开(公告)号：JPH10308302A
公开(公告)日：1998-11-17
申请号：JP11566297
申请日：1997-05-06
申请人： OSAKA PREFECTURE , IGA ATSUSHI
发明人： IGA ATSUSHI , MIYAMOTO DAIKI
IPC分类号： C04B35/453 , H01C7/10
摘要： PROBLEM TO BE SOLVED: To provide a zinc oxide-based porcelain composition and its production method by which a zinc oxide-based varistor having an excellent electrical characteristic and high reliability to a DC load and a surge load can be produced at 750 to 1000 deg.C with high yield. SOLUTION: A bismuth oxide of 0.5-12 pts.wt., a composite powder of Bi2 O3 and Sb2 O3 of 0.5-8.0 pts.wt. that is obtained by mixing a bismuth oxide with an antimony oxide and heating them at 400 to 700 deg.C, and at least two or more metal oxide of 0.5-8.0 pts.wt. that are selected from Al2 O3 , B2 O3 , C0 O, Cr2 O3 , GeO2 , La2 O3 , MgO, MnO, Nb2 O5 , Nb2 O3 NiO, PbO, Pr2 O3 , SiO2 , SnO2 , Ta2 O5 , TiO2 , WO3 , and Y2 O3 , are added to a zinc oxide powder of 100 pts.wt. and they are sintered to form them to a disk under pressure, and then electrodes 12 are formed on both surfaces of the obtained zinc oxide-based porcelain composition, and a lead wire 13 is attached thereto so as to obtain a discaidal varistor.

8. 发明专利

JP2002270878A METHOD FOR EVALUATING OUTPUT OF SOLAR BATTERY, COMPUTER READABLE DATA RECORDING MEDIUM FOR RECORDING OUTPUT EVALUATION PROGRAM AND APPARATUS FOR EVALUATING OUTPUT 失效
公开(公告)号：JP2002270878A
公开(公告)日：2002-09-20
申请号：JP2001072081
申请日：2001-03-14
申请人： IGA ATSUSHI
发明人： IGA ATSUSHI
IPC分类号： G01J1/02 , H01L31/04 , H02N6/00
摘要： PROBLEM TO BE SOLVED: To solve the problem that, in order to evaluate the output of a solar battery, a method for converting a voltage-current value (I-V curve) of a reference state (1 kw/m , 25 deg.C) into the I-V curve of solar radiation intensity/solar battery temperature conditions at a measuring time or vice versa is not established, a measurement cannot follow to a severe change of a solar radiation and a method for evaluating in a linkage operation is not established. SOLUTION: A method for diagnosing the output of the solar battery comprises the steps of solving a solar battery basic characteristic formula from characteristic values of the solar battery (S13), forming the I-V curve of the reference state (S14), two steps of forming the I-V curve of the solar radiation intensity/solar battery temperature conditions at the measuring time (S16, S17 to S21), steps of comparing/evaluating (S22, S23, S28) by inverting (S27), and dealing with an abrupt solar radiation change or the like (S24, S25, S26). Further, the method comprises the step of enabling diagnosis even during the linkage operation. An apparatus for the method is provided.

9. 发明专利

JP2002270877A METHOD FOR SIMULATION-CALCULATING SOLARLIGHT GENERATING AMOUNT AND COMPUTER READABLE DATA STORAGE MEDIUM WITH CALCULATING PROGRAM RECORDED THEREIN 失效
公开(公告)号：JP2002270877A
公开(公告)日：2002-09-20
申请号：JP2001071916
申请日：2001-03-14
申请人： IGA ATSUSHI
发明人： IGA ATSUSHI
IPC分类号： H01L31/04 , H02N6/00
摘要： PROBLEM TO BE SOLVED: To solve the problem that since a general method for drawing I-V, P-V curves in a designated solar radiation intensity/solar battery temperature from characteristics values (Isc, Iop, Vop, Voc, α, β, Rs, K) in a reference state (solar radiation intensity 1 kw/m , solar battery temperature of 25 deg.C) of the solar battery is not established, a method for accurately calculating the monthly and yearly solarlight generating amounts by simulating for general purpose is not sufficiently established. SOLUTION: A method for calculating by simulating the solarlight generating amount comprises the steps of (1) obtaining basic characteristic value (IL, Co, n, Rsh, Rs) at 20, b and c deg.C as a general purpose method for forming the I-V curve at the solar radiation intensity, solar battery temperature designated from the I-V curve of the reference state, obtaining the basic characteristic values at the designated temperature by a curve interpolation, obtaining the values by a Newton method by using these values, and forming the I-V curve. Or, the method comprises the steps of (2) converting the points of the I-V curve of the reference state via a 'practical I-V curve conversion formula', and forming the I-V curve. The generating amount is calculated by simulating by applying these two methods to a practical use and as a core part of the 'solarlight generating amount simulating calculating program'.

10. 发明专利

JP2000243608A ZINC OXIDE VARISTOR AND MANUFACTURE THEREOF 失效
公开(公告)号：JP2000243608A
公开(公告)日：2000-09-08
申请号：JP4013599
申请日：1999-02-18
申请人： IGA ATSUSHI
发明人： IGA ATSUSHI
IPC分类号： C04B35/453 , C04B37/00 , C04B41/87 , H01C7/10
摘要： PROBLEM TO BE SOLVED: To provide a zinc oxide varistor for low-voltage, together with its manufacturing method, which comprises an excellent surge absorption characteristic as a zinc oxide group varistor, with low electrostatic capacitance. SOLUTION: A ceramic 11 of zinc oxide group containing at least one oxide from among MnO, CoO, Fe2O3, NiO, MgO, Al2O3, and BeO is produced. On the surface of the ceramic 11, two electrode materials containing an electrode subjected to a heat treatment in the range of 400 to 700 deg.C additive oxide wherein a mixture comprising at least two oxides out of Bi2O3, Sb2O3, B2O3, Cr2O3, PbO, TiO2, SiO2, SnO2, Ta2O5, GeO2, BaO, SrO, Y2O3, Pr2O3, CoO, and MnO is thermally processed at 400-700 deg.C are formed, then thermally processed at 700-1000 deg.C to form electrodes 12 and 13 which are attached with lead wires 14 and 15, providing a zinc oxide varistor.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式