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1. 发明专利

JPS632816A PLATINUM VESSEL FOR HIGH TEMPERATURE USE 失效
公开(公告)号：JPS632816A
公开(公告)日：1988-01-07
申请号：JP14444486
申请日：1986-06-20
申请人： TANAKA PRECIOUS METAL IND
发明人： YOSHINAGA YUJI
IPC分类号： B32B15/04 , C03B5/08 , C03B37/095
摘要： PURPOSE:To obtain the title platinum vessel for high temp. use capable of remarkably reducing the consumption of Pt while reducing the volatilization of Pt when the vessel is used at high temp. by coating glass on the surface of the Pt (alloy) vessel. CONSTITUTION:A coating layer 3 of the glass stable at high temp. and consisting, for example, of 68.9% SiO2, 10.2% B2O3, 8.4% Na2O, 2.8% K2O, and 1.0% Al2O3 is formed on the surface of a platinum crucible 1 contg. molten glass 2 by a dip process. The circulation of air to the surface of the Pt (alloy) is prevented by the coating layer 3 stable at high temp., the oxidation and volatilization of Pt are controlled, and the consumption of expensive Pt can be remarkably reduced.

2. 发明专利

JPH0255242A METAL FILTER FOR PRODUCTION OF GLASS FIBER 失效
公开(公告)号：JPH0255242A
公开(公告)日：1990-02-23
申请号：JP20617688
申请日：1988-08-19
申请人： TANAKA PRECIOUS METAL IND
发明人： YOSHINAGA YUJI , MURAKISHI YUKIHIRO
IPC分类号： C03B37/083
摘要： PURPOSE:To develop a porous plate metal filter for the production of glass fiber and having excellent filtration efficiency by arranging small spheres of Pt or a Pt alloy in the form of a plane and hot-pressing the particles. CONSTITUTION:Small spheres of Pt or a Pt alloy having particle diameter of about 0.1mm are deposited in two layers and pressed at 300 deg.C under a pressure of 40ton and maintained in the state for about 1hr to obtain a glass fiber production metal filter composed of a porous plate having a thickness of about 0.5mm and a mesh opening of about 5mum. The filter is useful for the collection and removal of foreign material such as melting crucible material existing in the molten glass for the production of glass fiber. Since the filtration opening can be decreased and the area of the filter can be enlarged, a glass fiber production metal filter having excellent capture efficiency of foreign material in molten glass can be produced.

3. 发明专利

JPH01210860A MANUFACTURE OF SENSOR MOLD ARTICLE 失效
公开(公告)号：JPH01210860A
公开(公告)日：1989-08-24
申请号：JP3625488
申请日：1988-02-18
申请人： TANAKA PRECIOUS METAL IND
发明人： MIZUTA HIDEO , YOSHINAGA YUJI
IPC分类号： G01N27/30
摘要： PURPOSE:To prevent a metallic electrode from turning or coming off by executing a machining for finishing by forming different unevenness and a groove on the outer periphery of the metallic electrode being the mold object of a sensor mold article, and thereafter, molding it together with a resin. CONSTITUTION:An annular groove 2 is formed by the machining on the outer periphery of a lower side than the height position of 1mm from the upper end of a ring-like electrode 1 consisting of, for instance, Ag, and also, on the outer periphery of the lower side than the annular groove 2, a knurled surface 3 is formed by a knurling work. Subsequently, to the upper face of the electrode 1, a lead wire 4 consisting of Ag is brazed vertically, and next, the electrode 1 is set in a frame 5, and thereafter, by molding polybutylene terephthalate 6, an oxygen sensor 7 is obtained. In such a way, the electrode 1 is engaged to the polybutylene terephthalate 6 and allowed to adhere tightly by engaged to the annular groove 2 and the knurled surface 3, therefore, a sensor mold article having a satisfactory quality, in which the electrode does not turn nor comes off is obtained.

4. 发明专利

JPH06112585A MANUFACTURE OF SUBMOUNT 失效
公开(公告)号：JPH06112585A
公开(公告)日：1994-04-22
申请号：JP28091392
申请日：1992-09-25
申请人： TANAKA PRECIOUS METAL IND
发明人： YOSHINAGA YUJI , ISHIKURA CHIHARU
IPC分类号： H01S5/00 , H01S3/18
摘要： PURPOSE:To obtain a submount excellent in conductive characteristics in which resistance from one side to the other side is lowered while exhibiting sufficient heat dissipation effect by applying a coating on one side of a wafer and then cutting the wafer into band members thereafter applying a coating on the other side. CONSTITUTION:A wafer 1 is sequentially coated 1a, on one side thereof, with Ti, Pt, and Au through sputtering and further coated with Pb-Sn through wet plating. The water 1 is then cut into band members 2 which are subjected to ultrasonic cleaning and subsequently coated, on the other side thereof, with Ti, Pt, and Au through sputtering. Thereafter, the band member 2 is cut into a submount 3. Since the wafer 1 is applied with coating on one side thereof and cut off and then applied with coating on the other side thereof, coating 1c on the other side spreads onto the cutting face, i.e., the side face. Consequently, electrical conduction from one side to the other side is achieved through connection of side faces thus realizing a submount excellent in conductive characteristics and exhibiting sufficient heat dissipation effect.

5. 发明专利

JPH03114163A MANUFACTURE OF SLIDE BRUSH 失效
公开(公告)号：JPH03114163A
公开(公告)日：1991-05-15
申请号：JP25287189
申请日：1989-09-28
申请人： TANAKA PRECIOUS METAL IND
发明人： UEDA KAZUO , YOSHINAGA YUJI
IPC分类号： H01C1/12 , H01C17/00 , H01R43/12
摘要： PURPOSE:To provide a slide brush of good quality by furnishing a touch sensor to sense the over and under sides of an extra-thin wire in the position where the wire is fed horizontally, thereby optimally controlling the feed amount of the wire, and stabilizing the welding strength. CONSTITUTION:Twenty bobbins 2 on which an extra-thin wire 1 is wound are placed in sideways alignment and supported on the output shaft 12 of a motor 11, and each extra-thin wire 1 dangling at the bobbin 2 is positioned so as to be fed horizontally, where the over and under sides of the extra-thin wire 1 are sensed for eventual abnormality by the upper and lower parts 13, 13' of a touch sensor. After putting such wires 1 having passed the touch sensor in alignment and into a bundle by an aligning and bundling tool 14, they are passed through a guide 15. The foremost part of the bundle 5 of wires 1 is pressure welded by an upper and a lower electrode 14, 14' onto a base 6 made of phosphor bronze through a projection 6a while the bundle 5 is clamped by a holding jig 15a. this is followed bycutting of the bundle 5 using cutters 8, 8'. Then the foremost of bundle 5' welded to the base 6 is bent into an arc of a circle to form a contacting part 9. Thus a slide brush 10' is accomplished.

6. 发明专利

JPH0255687A WELDING METHOD FOR SILVER MEMBER 失效
公开(公告)号：JPH0255687A
公开(公告)日：1990-02-26
申请号：JP20617588
申请日：1988-08-19
申请人： TANAKA PRECIOUS METAL IND
发明人： MIZUTA HIDEO , YOSHINAGA YUJI
IPC分类号： B23K26/21
摘要： PURPOSE:To improve the welding strength of two silver members by superposing both the members and bringing them into contact with each other, and also, dimming a contact center part of one silver member, and subsequently, irradiating its dim surface by a laser light. CONSTITUTION:Two silver members are brought into contact with each other in a state that they are superposed, a contact superposed part of one silver member is set as an irradiated position and working for dimming the surface is executed. Subsequently, the surface of one silver member on which its dimming is generated is irradiated by a laser light. On the surface of the silver member on which dimming is generated, the focus becomes blurred, and also, a reflection of the laser light is suppressed, and the whole contact superposed body of the silver member is melted, and welded exactly surely to the other silver member. In such a way, the welding strength of two silver members is improved.

7. 发明专利

JPH02124251A WORKING METHOD FOR SMALL HOLE 失效
公开(公告)号：JPH02124251A
公开(公告)日：1990-05-11
申请号：JP27238288
申请日：1988-10-28
申请人： TANAKA PRECIOUS METAL IND
发明人： YOSHINAGA YUJI , IIJIMA JIRO
IPC分类号： B24B1/04 , B26F1/26
摘要： PURPOSE:To increase the straightness irrespective of the working depth of a small hole by installing a tool guide serving for a tool making die as well having a hole in the necessary shape on the body to be worked, forming in the necessary tool sectional shape by feeding a wire tool by inserting it into the tool guide and subjecting a small hole to ultrasonic machining on the body to be worked by the tool. CONSTITUTION:A tool guide 13 serving for a tool making die as well is installed on the body 4 to be worked, a wire tool 17 is fed by inserting it into the tool guide 13 and formed in the necessary tool sectional shape. Thus the tool 17 receives no limitation at all even if how deep the working depth of the small hole is. Also in case of the tool 17 formed in the necessary sectional shape working a small hole 8 on the body 4 to be worked, it descends straight along the guide hole 12 of the guide 13 of the tool 17, so in case of the tool 17 coming into contact with the body 4 to be worked, the longitudinal vibration by ultrasonic wave does not escape in the transverse direction and on the way of working the intermediate part of the tool 17 is held on the tool guide 13, so the longitudinal vibration does not escape in the transverse direction.

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