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1. 发明专利

JP2006282436A Ceramic granule, compacted body, sintered compact, and electronic component 审中-公开
标题翻译：陶瓷颗粒，压实体，烧结紧密和电子组件
公开(公告)号：JP2006282436A
公开(公告)日：2006-10-19
申请号：JP2005103521
申请日：2005-03-31
申请人： Tdk Corp , Tdk株式会社
发明人： HARADA HIROSHI , SAWAI ATSUSHI , SAITO YUTAKA , KUMAGAI MOTOI
IPC分类号： C04B35/628 , C04B35/30
摘要： PROBLEM TO BE SOLVED: To provide ceramic granules capable of obtaining a ceramic sintered compact having high strength and excellent dimensional precision even when being made small in size, thin in thickness and light in weight. SOLUTION: The ceramic granules exhibits such grain size distribution that in the particle diameters D10, D50, D90 of 10%, 50% and 90% cumulative particles, respectively, from the smaller particle side of cumulative grain size distribution, D50 ranges from 60 to 100 μm, D90 is ≥60 μm, D90/D10 is ≤1.5 , D90/D50 is ≤1.3, and D50/D10 is ≤1.3. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：待解决的问题：即使在尺寸小，厚度薄和重量轻的情况下，也能够提供能够获得具有高强度和优异尺寸精度的陶瓷烧结体的陶瓷颗粒。解决方案：陶瓷颗粒具有如下的晶粒尺寸分布，其粒径D10，D50，D90分别为累积粒度分布的较小颗粒侧的10％，50％和90％的累积颗粒，D50范围 60〜100μm，D90≥60μm，D90 / D10≤1.5，D90 / D50≤1.3，D50 / D10≤1.3。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2004344794A Ceramic granule sieving method and sieving apparatus and ceramic granule 有权
标题翻译：陶瓷颗粒切割方法和切割装置和陶瓷颗粒
公开(公告)号：JP2004344794A
公开(公告)日：2004-12-09
申请号：JP2003145776
申请日：2003-05-23
申请人： Tdk Corp , Tdk株式会社
发明人： HARADA HIROSHI
IPC分类号： B07B1/28 , B07B1/46 , B07B1/52
摘要： PROBLEM TO BE SOLVED: To provide a sieving method and a sieving apparatus by which sieving precision and sieving efficiency can be improved and deterioration of ceramic granules, which are object to be sieved, for dry pressure molding can be suppressed and clogging of the meshes for sieveing can be lessened.
SOLUTION: Ceramic granules are mounted on the top face of a mesh 40 for sieving and while the ceramic granules being moved three-dimensional circular movement on the mesh 40 for sieving, brush bristles 52a of brushes 10a, 10b are brought into contact with the mesh 40 to prevent clogging of the mesh 40 and sieve the ceramic granules.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：待解决的问题：提供一种可以提高筛分精度和筛分效率的筛分方法和筛分装置，并且可以抑制用于干压成型的待进行筛分的陶瓷颗粒的劣化和堵塞筛网可以减轻。解决方案：陶瓷颗粒安装在筛网40的顶面以进行筛分，并且当陶瓷颗粒在筛网40上移动三维圆周运动以进行筛分时，刷子10a，10b的刷毛52a接触用网40防止网孔40的堵塞并筛分陶瓷颗粒。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2002329606A FERRITE SINTERED BODY, ITS MANUFACTURING METHOD, AND FERRITE MOLDING GRANULE 失效
公开(公告)号：JP2002329606A
公开(公告)日：2002-11-15
申请号：JP2001131471
申请日：2001-04-27
申请人： TDK CORP
发明人： HARADA HIROSHI
IPC分类号： H01F1/37
摘要： PROBLEM TO BE SOLVED: To provide a ferrite sintered body which has a small water absorption coefficient and a reduced core loss, a method of manufacturing the same, and ferrite molding granules. SOLUTION: Ferrite material powder and ethylene-modified polyvinyl alcohol having 4 to 10 mol% modified ethylene, an average polymerization degree of 500 to 1700, and an average saponification degree of 92 to 97 mol% are mixed together and granulated into ferrite molding granules, the ferrite molding granules are formed into a ferrite molded body, and the ferrite molded body is baked into a ferrite sintered body. The ferrite sintered body has water absorption of 0.2 mass% or blow, and a method of manufacturing the ferrite sintered body and ferrite forming granules are provided.

4. 发明专利

JP2000348672A ELECTRODE AND DISCHARGE LAMP 失效
公开(公告)号：JP2000348672A
公开(公告)日：2000-12-15
申请号：JP34696399
申请日：1999-12-06
申请人： TDK CORP
发明人： TAKAHASHI MAKOTO , TAKEISHI AKIRA , MATSUOKA MASARU , HAMADA MUNEMITSU , YODOGAWA MASATADA , HARADA HIROSHI
IPC分类号： H01J61/06 , H01J61/28
摘要： PROBLEM TO BE SOLVED: To reduce power consumption while enhancing luminance and luminescence efficiency in a mercury dispenser integrating cold cathode for a low pressure mercury vapor discharge lamp. SOLUTION: This electrode is used for a mercury vapor discharge lamp, and contains an emissive material and a mercury dispenser material. The emissive material contains a first component composed of at least one kind of Ba, Sr and Ca, and a second component composed of at least one kind of Ta, Zr, Nb, Ti and Hf as a metal element component, and also contains an acid nitride pebrovskite.

5. 发明专利

JP2000340096A ELECTRON EMISSION ELECTRODE 失效
公开(公告)号：JP2000340096A
公开(公告)日：2000-12-08
申请号：JP34696599
申请日：1999-12-06
申请人： TDK CORP
发明人： HAMADA MUNEMITSU , TAKEISHI AKIRA , TAKAHASHI MAKOTO , MATSUOKA MASARU , YODOGAWA MASATADA , HARADA HIROSHI
IPC分类号： H01J1/14 , H01J1/142 , H01J1/15 , H01J1/20 , H01J1/28 , H01J1/30 , H01J17/04 , H01J29/04 , H01J31/12 , H01J37/06 , H01J61/067
摘要： PROBLEM TO BE SOLVED: To suppress evaporation in discharge and enhance resistance to ion sputtering by using electron emission material containing a first component of at least one element selected from Ba, St, and Ca, and a second component of at least one element selected from Ta, Zr, Nb, Ti, and Hf, and also containing oxynitride perovskite. SOLUTION: A desirable element of a first component is Ba, and Ba is preferable to occupy 70-100 atomic percent of the first component. A desirable element of a second component is Ta, and Ta is preferable to occupy 70-100 atomic percent of the second component. When molar ratio of the first component is represented by X and that of the second component is represented by Y, based on the total amount of the first component and the second component, the relation of 0.8

6. 发明专利

JP2000331593A ELECTRON EMISSION MATERIAL 失效
公开(公告)号：JP2000331593A
公开(公告)日：2000-11-30
申请号：JP34696499
申请日：1999-12-06
申请人： TDK CORP
发明人： HAMADA MUNEMITSU , TAKEISHI AKIRA , TAKAHASHI MAKOTO , MATSUOKA MASARU , YODOGAWA MASATADA , HARADA HIROSHI
IPC分类号： H01J1/14 , H01J1/15 , H01J61/06
摘要： PROBLEM TO BE SOLVED: To obtain a material of low evaporation in discharge and high resistance to ion sputtering by containing oxynitride perovskite containing a first component comprising at least one element of Ba, Sr, and Ca and a second component comprising at least one element of Ta, Zr, Nb, Ti, and Hf. SOLUTION: When a first component of an electron emission material is represented by MI and a second component is represented by MII, oxynitride perovskite is preferable to contain a MIMIIO2N type crystal. When the molar ratio of the first component is represented by X, and the molar ratio of the second component is represented by Y, the composition is preferably shown in 0.8

7. 发明专利

JP2000169238A MATERIAL FOR PRODUCING ELECTRONIC PART, ITS MOLDED PRODUCT, HIGH DENSITY FERRITE ELECTRONIC PART BY USING THE SAME, AND PRODUCTION THEREOF 失效
公开(公告)号：JP2000169238A
公开(公告)日：2000-06-20
申请号：JP27076999
申请日：1999-09-24
申请人： TDK CORP
发明人： HARADA HIROSHI
IPC分类号： B01J2/00 , B28B3/02 , C04B35/622
摘要： PROBLEM TO BE SOLVED: To obtain coated bodies of ferrite granules, capable of providing a high density ferrite electronic part having homogeneous and excellent electromagnetic characteristics, further to obtain a molded product the coated bodies of the ferrite granules obtained by using the ferrite granule coated body, formed by a pressure forming by using a low forming pressure, without impairing the life of the mold, and capable of providing a ferrite electronic part which has the before properties, and further to provide the high density ferrite electronic part excellent in electromagnetic characteristics by using the molded product. SOLUTION: This material for producing a high density ferrite electronic part comprises coated bodies of ferrite granules having at least a part of the surfaces coated with a hexitan ester of a higher fatty acid. The amount of the hexitan ester of the higher fatty acid is in the range of 0.1-3.0 wt.% based on the weight of the ferrite granule. The production method of the high density ferrite electronic part comprises granulating the ferrite powder, adding the hexitan ester of the higher fatty acid to the obtained granules, bringing both into contact with each other thoroughly to coats at least a part of the surfaces of the ferrite granule with the hexitan ester of the higher fatty acid. The formed body for producing the high density ferrite electronic part consists of the formed product of the coated bodies of the ferrite granuless having at least a part of the surfaces coated with the texitan ester of the higher fattey acid.

8. 发明专利

JPH11102661A ELECTRODE FOR DISCHARGE LAMP 失效
公开(公告)号：JPH11102661A
公开(公告)日：1999-04-13
申请号：JP26351497
申请日：1997-09-29
申请人： TDK CORP
发明人： HAMADA MUNEMITSU , TAKEISHI AKIRA , YODOGAWA MASATADA , HARADA HIROSHI
IPC分类号： H01J61/06 , H01J61/067
摘要： PROBLEM TO BE SOLVED: To reduce scattering of an electron emitting material by ion sputtering, and lengthen the service life of a lamp by arranging one or more places of projecting materials on an inside surface of a conductive electrode vessel filled with an aggregate structure filler composed of the electron emitting material, and projecting these projecting materials from the surface of the aggregate structure filler. SOLUTION: A projecting part 2 is arranged on the inside surface of a conductive electrode vessel 1, and the tip of the projecting part 2 is projected to a surface of an aggregate structure filler 3 in the conductive electride vessel 1. It is formed in a shape which discharge is started from the tip of the electric charge concentrating projecting part 2 at lighting time and the discharge transfers to the aggregate structure filler 3 in the next place. Therefore, the discharge can be quickly transferred to arc discharge from glow discharge at lighting time, and ion sputtering caused in a glow discharge condition at lighting time can be restrained, and since the aggregate structure filler 3 hardly falls off, particularly, the on-off service life of a fluorescent lamp can be improved.

9. 发明专利

JPH07201634A CERAMIC CHIP DEVICE 失效
公开(公告)号：JPH07201634A
公开(公告)日：1995-08-04
申请号：JP33669893
申请日：1993-12-28
申请人： TDK CORP
发明人： HARADA HIROSHI
IPC分类号： H01G4/12 , H01F17/00 , H05K3/34
摘要： PURPOSE:To eliminate solder bridge at the time of soldering to a printed board by connecting the inner electrode internally through a hole made through a ceramic layer and forming the terminal electrodes only at the opposite end parts on the surface and the rear surface to be soldered. CONSTITUTION:The ceramic chip device comprises a multilayer ceramic capacitor body 11 and terminal electrodes 12, 12' and 13, 13'. The body 11 comprises dielectric ceramic layers 14-1,... 14-7 and inner electrodes 15-1, 15-2, 15-3 and 16-1, 16-2, 16-3 of conductor layers formed therebetween. The inner electrodes 15-1, 15-2 and 15-3 are connected through a through hole 17 with the terminal electrodes 12, 12' whereas the inner electrodes 16-1, 16-2 and 16-3 are connected through a through hole 18 with the terminal electrodes 13, 13' thus forming a capacitor as a whole. This structure eliminates solder bridge at the time of soldering to a printed board thus inhibiting production of failed product.

10. 发明专利

JPH0534993A MAGNETIC CARRIER PARTICLES FOR ELECTROPHOTOGRAPHIC DEVELOPMENT 失效
公开(公告)号：JPH0534993A
公开(公告)日：1993-02-12
申请号：JP35147991
申请日：1991-12-12
申请人： TDK CORP
发明人： HARADA HIROSHI , TAKAHASHI YUKIO
IPC分类号： G03G9/113 , G03G9/09
摘要： PURPOSE:To ensure excellent halftone reproducibility, no carrier sticking and excellent durability and to reduce dependency on environment by forming resin coats with a specified mixture. CONSTITUTION:Resin coats contg. carbon black are formed on the surfaces of magnetic particles with a mixture of a dispersion of fluorine-contg. polymer particles with a dispersion liq. prepd. by dispersing carbon black with a polymer dispersant. This dispersant is preferably a maleic anhydride homo- or copolymer, a salt or deriv. thereof. The pref. specific surface area of the carbon black measured by the BET method is 200-1,500m/g and the dispersion liq. is preferably prepd. by further using a nonionic surfactant.

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