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1. 发明授权

US5075819A Solid dielectric capacitor and method of manufacture 失效
标题翻译：固体电介质电容器及其制造方法
公开(公告)号：US5075819A
公开(公告)日：1991-12-24
申请号：US618655
申请日：1990-11-27
申请人： Hiroshi Saito , Mutsumi Honda , Hiroshi Kishi , Hisamitsu Shizuno , Hirokazu Chazono
发明人： Hiroshi Saito , Mutsumi Honda , Hiroshi Kishi , Hisamitsu Shizuno , Hirokazu Chazono
IPC分类号： C04B35/49 , H01G4/12
CPC分类号： C04B35/49 , H01G4/1245 , Y10T29/435
摘要： A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula,(1-.alpha.) {(Ba.sub.k-x M.sub.x)O.sub.k (Ti.sub.1-y R.sub.y)O.sub.2-(y/2) }+.alpha.CaZrO.sub.3where M is either or both of calcium and strontium, R is a rare earth element or elements, and .alpha., k, x and y are numerals in specified ranges. To this major ingredient is added a minor proportion of an additive. The additive is a mixture of boric oxide or lithium oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200 degrees C. and then are heated at a lower temperature in an oxidative atmosphere.

2. 发明授权

US4999737A Solid dielectric capacitor and method of manufacture 失效
公开(公告)号：US4999737A
公开(公告)日：1991-03-12
申请号：US482659
申请日：1990-02-21
申请人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
发明人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
IPC分类号： C04B35/46 , C04B35/468 , C04B35/49 , H01G4/12
CPC分类号： C04B35/49 , C04B35/4682 , H01G4/1245
摘要： A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula,(1-.alpha.){(Ba.sub.k-x-y L.sub.x M.sub.y)O.sub.k TiO.sub.2 }+.alpha.CaZrO.sub.3,where L is either or both of magnesium and zinc, M is either or both of calcium and strontium, and .alpha., k, x and y are numerals in specified ranges. To this major ingredient is added a minor proportion of a mixture of boric oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200.degree. C. and then are reheated at a lower temperature in an oxidative atmosphere.

3. 发明授权

US4999736A Solid dielectric capacitor and method of manufacture 失效
公开(公告)号：US4999736A
公开(公告)日：1991-03-12
申请号：US482654
申请日：1990-02-21
申请人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
发明人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
IPC分类号： C04B35/46 , C04B35/468 , C04B35/49 , H01G4/12
CPC分类号： C04B35/4682 , C04B35/49 , H01G4/1245 , Y10T29/435
摘要： A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula,(1-.alpha.)(Ba.sub.k-x-y L.sub.x M.sub.y)O.sub.k TiO.sub.2)+.alpha.CaZrO.sub.s,where L is either or both of magnesium and zinc, M is either or both of calcium and strontium, and .alpha., k, x and y are numerals in specified ranges. To this major ingredient is added a minor proportion of a mixture of lithium oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200.degree. C. and then are reheated at a lower temperature in an oxidative atmosphere.

4. 发明授权

US5103370A Solid dielectric capacitor and method of manufacture 失效
公开(公告)号：US5103370A
公开(公告)日：1992-04-07
申请号：US620834
申请日：1990-11-29
申请人： Hiroshi Saito , Mutsumi Honda , Hiroshi Kishi , Hisamitsu Shizuno , Hirokazu Chazono
发明人： Hiroshi Saito , Mutsumi Honda , Hiroshi Kishi , Hisamitsu Shizuno , Hirokazu Chazono
IPC分类号： C04B35/49 , H01G4/12
CPC分类号： H01G4/1245 , C04B35/49 , Y10T29/435
摘要： A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula(1-.alpha.){(Ba.sub.k-x M.sub.x)O.sub.k (Ti.sub.1-y R.sub.y)O.sub.2-(y/2) }+.alpha.CaZrO.sub.3where M is either or both of magnesium and zinc, R is a rare earth element or elements, and .alpha., k, x and y are numerals in specified ranges. To this major ingredient is added a minor proportion of a first additive ingredient and a second additive ingredient. The first additive ingredient is at least either of chromium oxide and aluminum oxide. The second additive ingredient is a mixture of boric oxide or lithium oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200 degrees C. and then are heated at a lower temperature in an oxidative atmosphere.

5. 发明授权

US5077636A Solid dielectric capacitor and method of manufacture 失效
公开(公告)号：US5077636A
公开(公告)日：1991-12-31
申请号：US618710
申请日：1990-11-27
申请人： Hiroshi Saito , Mutsumi Honda , Hiroshi Kishi , Hisamitsu Shizuno , Hirokazu Chazono
发明人： Hiroshi Saito , Mutsumi Honda , Hiroshi Kishi , Hisamitsu Shizuno , Hirokazu Chazono
IPC分类号： C04B35/49 , H01G4/12
CPC分类号： C04B35/49 , H01G4/1245 , Y10T29/435
摘要： A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula,(1-.alpha.){(Ba.sub.k-x-z M.sub.x L.sub.z)O.sub.k (Ti.sub.1-y R.sub.y)O.sub.2-(y/2) }+.alpha.CaZrO.sub.3where M is either or both of magnesium and zinc, L is either or both of calcium and magnesium, R is a rare earth element or elements, and .alpha., k, x, z and y are numerals in specified ranges. To this major ingredient is added a minor proportion of an additive ingredient. The additive ingredient is a mixture of boric oxide or lithium oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200 degrees C. and then are heated at a lower temperature in an oxidative atmosphere.

6. 发明授权

US4999739A Solid dielectric capacitor and method of manufacture 失效
公开(公告)号：US4999739A
公开(公告)日：1991-03-12
申请号：US483140
申请日：1990-02-21
申请人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
发明人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
IPC分类号： C04B35/46 , C04B35/468 , C04B35/49 , H01G4/12
CPC分类号： C04B35/4682 , C04B35/49 , H01G4/1245
摘要： A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula,(1-.alpha.){(Ba.sub.k-x M.sub.x)O.sub.k TiO.sub.2 }+.alpha.CaZrO.sub.3where M is either or both of magnesium and zinc, and .alpha., k and y are numerals in specified ranges. To this major ingredient is added a minor proportion of a mixture of boric oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200.degree. C. and then are reheated at a lower temperature in an oxidative atmosphere.

7. 发明授权

US06614644B2 Multilayer ceramic capacitor and method for the manufacture thereof 有权
标题翻译：多层陶瓷电容器及其制造方法
公开(公告)号：US06614644B2
公开(公告)日：2003-09-02
申请号：US09785064
申请日：2001-02-15
申请人： Hirokazu Chazono , Hisamitsu Shizuno , Hiroshi Kishi
发明人： Hirokazu Chazono , Hisamitsu Shizuno , Hiroshi Kishi
IPC分类号： H01G406
CPC分类号： H01G4/1209
摘要： A multilayer ceramic capacitor includes sintered laminated bodies having a plurality of dielectric layers alternately stacked with a multiplicity of internal electrodes, and a pair of external electrodes electrically coupled to the internal electrodes. The dielectric layer is of sintered ceramic grains. The ceramic grains include a core portion surrounded by a shell portion or a solid solution. The ceramic grains contain additive elements such as acceptor elements and/or rare earth elements. The additive elements are non-uniformly distributed in the core and/or shell portion of the ceramic grain or in the solid solution. Such non-uniform distribution of the additive elements in ceramic grains promotes or facilitates the re-oxidation process of the ceramic grains and also increases electrical resistance thereof. Accordingly, the operating life characteristics of the multilayer ceramic capacitors, especially those incorporating therein thin dielectric layers, can be improved. As a result, the thickness of dielectric layers can be further reduced and a greater number of dielectric layers can be used in forming multilayer ceramic capacitors, enabling miniaturization and large capacitance thereof to be achieved.
摘要翻译：多层陶瓷电容器包括具有交替层叠有多个内部电极的多个电介质层和电连接到内部电极的一对外部电极的烧结层叠体。电介质层是烧结陶瓷晶粒。陶瓷颗粒包括由壳部分或固溶体包围的芯部分。陶瓷颗粒含有添加元素，例如受主元素和/或稀土元素。添加剂元素不均匀地分布在陶瓷颗粒的芯部和/或壳部分或固体溶液中。添加元素在陶瓷颗粒中的这种不均匀分布促进或促进了陶瓷颗粒的再氧化过程，并且还增加了其电阻。因此，可以提高多层陶瓷电容器的使用寿命特性，特别是那些结合有薄介电层的陶瓷电容器。结果，可以进一步减小电介质层的厚度，并且可以在形成多层陶瓷电容器中使用更多数量的电介质层，从而实现小型化和大的电容。

8. 发明授权

US5006954A Solid dielectric capacitor and method of manufacture 失效
标题翻译：固体介质电容器及其制造方法
公开(公告)号：US5006954A
公开(公告)日：1991-04-09
申请号：US483076
申请日：1990-02-21
申请人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
发明人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
IPC分类号： C04B35/46 , C04B35/468 , C04B35/49 , H01G4/12
CPC分类号： C04B35/49 , C04B35/4682 , H01G4/1245
摘要： A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula,(1-.alpha.){(Ba.sub.k-x M.sub.x)O.sub.k TiO.sub.2 }+.alpha.CaZrO.sub.3where M is either or both of magnesium and zinc, and .alpha., k and y are numerals in specified ranges. To this major ingredient is added a minor proportion of a mixture of lithium oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200.degree. C. and then are reheated at a lower temperature in an oxidative atmosphere.

9. 发明授权

US4999738A Solid dielectric capacitor and method of manufacture 失效
公开(公告)号：US4999738A
公开(公告)日：1991-03-12
申请号：US483079
申请日：1990-02-21
申请人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
发明人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
IPC分类号： C04B35/46 , C04B35/49 , H01G4/12
CPC分类号： C04B35/49 , H01G4/1245
摘要： A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula,(1-.alpha.){(Ba.sub.k-x M.sub.x)O.sub.k TiO.sub.2 }+.alpha.CaZrO.sub.3where M is either or both of calcium and strontium, and .alpha., k and y are numerals in specified ranges. To this major ingredient is added a minor proportion of a mixture of boric oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200.degree. C. and then are reheated at a lower temperature in an oxidative atmosphere.

10. 发明授权

US07020941B2 Method for manufacturing a multilayer ceramic capacitor 有权
标题翻译：多层陶瓷电容器的制造方法
公开(公告)号：US07020941B2
公开(公告)日：2006-04-04
申请号：US10702931
申请日：2003-11-06
申请人： Hirokazu Chazono , Hisamitsu Shizuno , Hiroshi Kishi
发明人： Hirokazu Chazono , Hisamitsu Shizuno , Hiroshi Kishi
IPC分类号： H01G7/00 , H01L21/20
CPC分类号： H01G4/1209 , H01G4/1227 , Y10T29/43 , Y10T29/435 , Y10T29/49126 , Y10T29/49155 , Y10T29/49789 , Y10T29/49798
摘要： A method for manufacturing a multilayer ceramic capacitor includes the steps of forming a ceramic slurry, forming ceramic green sheets from the ceramic slurry, printing internal electrode patterns on the ceramic green sheets, generating a laminated body by stacking the ceramic green sheets provided with the internal electrode patterns printed thereon, dicing the laminated body to thereby form chip-shaped ceramic bodies and sintering the chip-shaped ceramic bodies. The ceramic slurry includes a glass component containing one or more additive elements selected from the group consisting of Mn, V, Cr, Mo, Fe, Ni, Cu and Co.
摘要翻译：一种制造多层陶瓷电容器的方法包括以下步骤：形成陶瓷浆料，从陶瓷浆料形成陶瓷生片，在陶瓷生片上印刷内部电极图案，通过堆叠设置有内部陶瓷生坯的陶瓷生片印刷在其上的电极图案，切割层压体，从而形成芯片状陶瓷体并烧结芯片状陶瓷体。陶瓷浆料包括含有一种或多种选自Mn，V，Cr，Mo，Fe，Ni，Cu和Co的添加剂组分的玻璃组分

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