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公开(公告)号：JP2004131319A
公开(公告)日：2004-04-30
申请号：JP2002295899
申请日：2002-10-09
Applicant: Ngk Insulators Ltd , 日本碍子株式会社
Inventor： OHASHI TOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide a process for manufacturing a long ceramic sintered compact which is suitable for mass production and prevents the sintered compact from bending by sintering a long material to be sintered having a long, thin hole extending in the longitudinal direction. SOLUTION: The long ceramic sintered compact is manufactured by sintering the long material 1 having the long, thin hole 4 extending in the longitudinal direction. A long, thin hanging member 3 is inserted into the hole 4, and the material 1 is sintered with its upper end 1e hung from the hanging member 3. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JPH1072684A
公开(公告)日：1998-03-17
申请号：JP15201097
申请日：1997-06-10
Applicant: NGK INSULATORS LTD
Inventor： OHASHI TOSHIO , ASAI MICHIO
IPC: H05H1/24 , B01J19/08 , C04B35/115 , C23C16/50 , C23F4/00 , H01L21/205 , H01L21/302 , H01L21/3065
Abstract: PROBLEM TO BE SOLVED: To provide a passing tube for gas for generating plasma high in the transmissivity of ultraviolet rays and high in corrosion resistance to corrosive gas. SOLUTION: A passing tube for passing gas for generating plasma and irradiating the gas for generating plasma in the process of the passing with ultraviolet rays is provided. The passing tube is provided with the slender and thin passing tube main body for passing the gas for generating plasma to the inside and irradiating the gas for generating plasma in the process of the passing of the ultraviolet rays from the outside. The passing tube main body is formed by translucent alumina. The center line average surface roughness Ra in the part to be exposed to plasma in the passing tube main body is regulated to
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公开(公告)号：JPH03268899A
公开(公告)日：1991-11-29
申请号：JP7087190
申请日：1990-03-20
Applicant: NGK INSULATORS LTD
Inventor： OHASHI TOSHIO , WAKAYAMA MASAKI
Abstract: PURPOSE:To improve dimensional accuracy in a thin product by fitting a rubbing cut plate as vertically movable at front face of a powder supplying feeder having no bottom in a powder press metallic mold powder supplying device. CONSTITUTION:At the front face of powder supplying feeder 5 having no bottom for supplying the powder into the powder press metallic mold 2 embedded below a table surface while reciprocating along the table surface 4, the rubbing cut plate 8 having arc cross sectional shape at lower end is fitted as vertically movable. By this method, the raw material powder can be uniformly supplied under smooth surface condition without developing unevenness into the powder press metallic mold and the thin plate formed product having good dimensional accuracy and a little warp can be mass-produced.
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公开(公告)号：JP2003218038A
公开(公告)日：2003-07-31
申请号：JP2002013823
申请日：2002-01-23
Applicant: NGK INSULATORS LTD
Inventor： OHASHI HARUAKI , OHASHI TOSHIO , KOBAYASHI HIROMICHI , KATO KOJI
IPC: C23C14/34 , C23C16/509 , H01L21/205 , H01L21/302 , H01L21/3065
Abstract: PROBLEM TO BE SOLVED: To facilitate control of the interval between electrode function sections and the surface of an electrode device in the electrode device. SOLUTION: The electrode device 26 is provided with a container 15, at least the surface of which consists of a corrosion-resistant material, and the electrode function sections 17 and 18 consist of particles packed in the internal space 15g of the container 15. At least a part of the particles consists of a dielectric or conductive material having a specific inductive capacity of ≥12. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JPH08332618A
公开(公告)日：1996-12-17
申请号：JP13962695
申请日：1995-06-06
Applicant: NGK INSULATORS LTD
Inventor： OHASHI TOSHIO , MIYAZAWA SUGIO
IPC: A61B18/20 , B28B1/24 , B28B3/20 , C04B35/622 , C04B35/634 , A61B17/36
Abstract: PURPOSE: To mold and manufacture in a good manner a very fine ceramic bar-shaped body of non-uniform wall thickness provided with hollow sections inside by preparing ceramic raw material powder, forming granular particles having the average particle diameter and apparent bulk density of specified range, injection molding a molding material composed of the granular particles blended with a binder, and degreasing and burning the material. CONSTITUTION: When a very fine bar-shaped ceramic body 2 with a hollow section 1 used suitably for a medical laser surgical knife, a laser probe and the like, ceramic raw material powder is prepared to form granular particles of average particle diameter of 50-90μm and apparent bulk density of 0.60-0.80g/cm , and a molding material composed of granular particles blended with a binder is injection molded by the molding pressure of 500kg/cm or lower, and then degreased and burnt. The granular particles are formed into the round shape, by which the internal friction of the ceramic material is reduced, and the molding material is filled stably into a thin wall section even when the shape of the body is very fine and its wall thickness is of non-uniform shape.
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Patent Agency Ranking
公开(公告)号：JPH04139069A
公开(公告)日：1992-05-13
申请号：JP26023790
申请日：1990-09-28
Applicant: NGK INSULATORS LTD
Inventor： KAJIWARA TAKEHIRO , OHASHI TOSHIO
Abstract: PURPOSE:To sinter the long-sized cylindrical molding while preventing the curving thereof by hanging this molding by utilizing a lumped jig having a specific structure. CONSTITUTION:The long-sized cylindrical molding 2 formed with a pair of through-holes 11 in the positions facing each other is prepd. The lumped jig 4 which consists of a body 4a and projecting parts 4b projectingly provided in a body 4a and can be inserted into the cylindrical space of the long-sized cylindrical molding 2 is prepd. In-the-projecting part through- holes 8 are provided in the projecting parts 4b toward the direction perpendicular to the longitudinal direction of the long-sized cylindrical molding 2 while the lumped jig 4 is partly inserted into the above-mentioned cylindrical space. A long-sized body 9 for supporting the jig is inserted into the in-the-projecting part through-holes 8 and both ends of the long-sized body 9 for supporting the jig are imposed on the supporting base 10. The lumped jig 4 is hung down by the long-sized body 9 for supporting the jig. Intra-body through-holes 5 are provided in the body 4 toward the direction which is perpendicular with the above-mentioned longitudinal direction and intersects with the in-the-projecting part through-holes 8. The long-sized body 6 for supporting the molding is inserted into a pair of the through-holes 11 formed in the long-sized cylindrical molding 2 and the intra-body through-holes 5. The long-sized cylindrical molding 2 is thereby hung down and this long-sized cylindrical molding 2 is sintered.
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公开(公告)号：JPH0316160A
公开(公告)日：1991-01-24
申请号：JP6127590
申请日：1990-03-14
Applicant: NGK INSULATORS LTD
Inventor： KAJIWARA TAKEHIRO , MAEKAWA KOUICHIROU , OHASHI TOSHIO
Abstract: PURPOSE:To enhance a sealing and bonding strength by a method wherein this grid is constituted of high-quality alumina end an airtight-sealing face of a ceramic package is coated with a glass sealing and bonding auxiliary material. CONSTITUTION:A ceramic grid 1 is a high-purity light-transmitting polycrystalline alumina sheet which can transmit ultraviolet rays; it is composed of an ultraviolet transmitting window part 1A in the center end of a frame part 18 at its circumference. A first-layer glass sealing and bonding auxiliary material 2 is screen-printed on a part of the frame part 18 on the rear of the grid 1 ; it is dried and beat-treated. In this manner, the glass sealing and bonding auxiliary material 2 is formed; the sealing and bonding auxiliary material 2 is treated at a temperature higher than a sealing and bonding temperature of a glass sealing and bonding material used to seal a semiconductor element. Thereby, the glass sealing and bonding auxiliary material 2 is bonded firmly to the ceramic grid; since it is wettable to the glass sealing and bonding material, a bonding strength between the ceramic grid and a package can be enhanced.
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公开(公告)号：JP2005170703A
公开(公告)日：2005-06-30
申请号：JP2003409970
申请日：2003-12-09
Applicant: Ngk Insulators Ltd , 日本碍子株式会社
Inventor： OHASHI TOSHIO
IPC: C04B35/115 , H01J61/30
Abstract: PROBLEM TO BE SOLVED: To obtain a translucent ceramic consisting essentially of aluminum oxynitride phase and having high translucency by a normal sintering. SOLUTION: The translucent ceramic consisting essentially of aluminum oxynitride (AlON) phase is obtained by compacting a powdery mixture containing Al 2 O 3 and AlN in a molar ratio of (80-60%):(20-40%) and 2-10 pts.wt. MgO powder having 0.6-1.2 μm average particle diameter when the total quantity of Al 2 O 3 and AlN is 100 pts.wt. to obtain a compact 10, and sintering the compact 10 at 1,950-2,050°C as the maximum temperature. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：获得基本上由氮氧化铝相组成且通过正常烧结具有高半透明度的半透明陶瓷。 解决方案：基本上由氮氧化铝（AlON）相组成的半透明陶瓷是通过将含有Al 2 SB 3 O 3 SBB和AlN的粉末混合物以 （80-60％）:( 20-40％）和2-10重量份 当Al的总量和AlN的总量为100重量份时，平均粒径为0.6-1.2μm的MgO粉末。 以获得压块10，并以1,950-250℃作为最高温度烧结压块10。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005144735A
公开(公告)日：2005-06-09
申请号：JP2003382286
申请日：2003-11-12
Applicant: Ngk Insulators Ltd , 日本碍子株式会社
Inventor： OHASHI TOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide a ceramic sintered body equipped with an inside pipe part, the outside pipe part for surrounding the inside pipe part and a connection part for connecting the inside pipe part and the outside pipe part and characterized in that the joining properties of the outside pipe part and the inside pipe part are improved and a baking crack or bending deformation is suppressed. SOLUTION: The ceramic sintered body is obtained by baking an assembly 30A including the molding part 13c of the inside pipe part, the molding part 12 of the outer side pipe part having a shrinkage factor at the time of baking higher than that of the molding part 13c of the inside pipe part and the molding parts 13a and 13b of a pair of the connection parts. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种配备有内管部的陶瓷烧结体，用于包围内管部的外管部和用于连接内管部和外管部的连接部，其特征在于， 改善了外管部分和内管部分的接合性能，并且抑制了烘烤裂纹或弯曲变形。 解决方案：通过烘烤包括内管部分的成型部分13c的组件30A，烘烤时具有比烘干时的收缩率高的外侧管部分的成型部分12来获得陶瓷烧结体 内管部的成型部13c和一对连接部的成型部13a，13b。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JPH10264135A
公开(公告)日：1998-10-06
申请号：JP7532797
申请日：1997-03-27
Applicant: NGK INSULATORS LTD
Inventor： OHASHI TOSHIO , ASAI MICHIO
IPC: B28B21/92 , C04B35/64 , C04B37/00 , H01L21/205 , H01L21/302 , H01L21/3065 , H05H1/24
Abstract: PROBLEM TO BE SOLVED: To make a flange part vertical to a passing pipe main body on the occasion of manufacturing a passing pipe having the passing pipe main body and the flange part which are made of ceramic and thereby to prevent gas for producing plasma from leaking from the joining interface of the passing pipe main body and the flange part. SOLUTION: A passing pipe having a passing pipe main body made of ceramic and provided for passing through gas for producing plasma and for casting ultraviolet rays on the passing gas from outside and a flange part made of ceramic and joined on the outside surface of the passing pipe main body, is manufactured. A molded body of the passing pipe main body is calcined and the outside surface of a calcined body thus obtained is machined so that a first part 24 and a second part 25 having an outside diameter larger than the one of the first part 24 be formed. A stepped part 26 is provided between the outside surface 24a of the first part 24 and the outside surface 25a of the second part 25. The calcined body 23 of the passing pipe main body is fired and also the flange part 30 is joined to the stepped part 26.
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