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    • 1. 发明专利
    • MANUFACTURE OF DECORATIVE CHAIN
    • JPH03254330A
    • 1991-11-13
    • JP5316390
    • 1990-03-05
    • MASUDA KUNIMITSU
    • MASUDA KUNIMITSU
    • A44C11/00B21C23/22B21L99/00
    • PURPOSE:To obtain a multiple decorative chain having two-tone spiral pattern by inserting an inner material of metallic wire different in quality from an outer material into the inside of the outer material of metallic pipe, drawing the assembled wire into an angular wire rod of fine diameter and linking ring bodies with a wire rod having an inside exposed by shaving the side in the shape of many rows of chains. CONSTITUTION:Raw material 3 of large diameter through which the inner material 2 of metallic wire different in quality from the outer material 1 is drawn continuously by many dies on the inside of the outer material 1 of a metallic pipe to obtain a wire rod 4 of fine diameter. Then, the sides 6, 6' of the wire rod 4 of fine diameter are shaved to obtain an inner material exposed wire rod 7 where the inner material 2 is exposed on the sides 6, 6'. Ring bodies 8 are linked with the inner material exposed wire rod 7 in the shape of many rows of chains to obtain a multiple decorative chain 9.
    • 2. 发明专利
    • METHOD FOR MANUFACTURING CHAIN
    • JPS5788941A
    • 1982-06-03
    • JP16420780
    • 1980-11-21
    • MASUDA KUNIMITSU
    • MASUDA KUNIMITSU
    • A44C11/00A44C27/00B21L15/00
    • PURPOSE:To easily manufacture chains having ornametality and having high market value, by successively performing each working of pressing, annealing, surface treatment on the main body of chain, after the main body is formed by alternately connecting different section having different connecting pattern of metallic ring. CONSTITUTION:First of all, a pattern 2 in which, for example, four pieces of twisted metallic rings 1, 1- and another pattern 4 in which two pieces of non- twisted metallic rings 3 and 3 are alternately connected repeatedly, and a main body of a chain (a) is formed. Then, the main body (a) is subjected to a press working and the main body is crushed to have a desired shape. Because of the forming, the chain loses its flexibility. To give a flexibility to the chain again, an annealing is performed to the formed main body of the chain (b). After the annealing, a surface treatment, such as plating, etc., is performed on the chain, and thus, a finished product (c) is obtained.
    • 4. 发明专利
    • PRODUCTION FOR RING SHAPED ORNAMENTS SUCH AS RING, BRACELET, RING SHAPED PENDANT
    • JPH03247310A
    • 1991-11-05
    • JP4483290
    • 1990-02-26
    • MASUDA KUNIMITSU
    • MASUDA KUNIMITSU
    • A44C27/00B21D31/00B21K21/00B23K20/00
    • PURPOSE:To simply obtain a product having no joint nor separation of surface layer at low cost by exposing an external material and an internal material at both openings as layers and using the internal material as a cutting pattern. CONSTITUTION:A first internal material 2 formed with a metal pipe is inserted into an external material 1 made of a metal pipe different from the internal material 2. A second external material 3 formed with a metal pipe different from the first internal material 2 is inserted into the first internal material 2 to thereby form a raw material pipe 4 of three layers with large diameter. The raw material pipe 4 is subjected a continuous wire drawing process by means of many dies. Then, a three-layer pipe 5 with small diameter is obtained. The pipe 5 has an inside diameter equal to the size of a ring. Then, the three- layer pipe 5 with small diameter is cut by the width a ring to obtain a raw material 6 of a ring. Next, a cutting work of oblique grid like groove is applied on the outer surface of the raw material 6 of ring. Then, a cutting pattern 7 formed by exposing a part of the first internal material 2 is provided on the same surface to thereby obtain a complete product 8.
    • 6. 发明专利
    • PRODUCTION OF CHAIN
    • JPS63260644A
    • 1988-10-27
    • JP9669287
    • 1987-04-20
    • MASUDA KUNIMITSU
    • MASUDA KUNIMITSU
    • A44C11/00B21L99/00B23P13/00
    • PURPOSE:To obtain the product equipped with originality and freshness by executing the surface grinding to the depth reaching the surface of an annular body on the face of the chain main body and cutting off one part of the side face of plating layer and each annular body in the state of leaving an annular ring like cut pattern. CONSTITUTION:Numerous annular bodies 2 formed by the wire 1 made of platinum are linked and a gold plating layer 3 is covered on the surface of each annular body 2 to compose the main body of a chain. The surface grinding to the depth reaching the surface of the annular body 2 is executed on both faces of this chain main body, one part 5, 6 on the side face of each annular body 2 and plating layer 3 is cut in the state of leaving an annual ring like cut pattern 7 on the pripheral face and finishing is executed to obtain a completed product 8. The product equipped with originality and freshness is thus obtd. with simple process.
    • 7. 发明专利
    • MANUFACTURE OF ORNAMENTAL BODY FOR ACCESSORY
    • JPH0435601A
    • 1992-02-06
    • JP14298590
    • 1990-05-31
    • MASUDA KUNIMITSU
    • MASUDA KUNIMITSU
    • A44C27/00
    • PURPOSE:To dispense with soldered joint work of a border between different kinds of metals by rolling overlapped metal plates of different kinds with a rolling mill to provide a wide width sheet the surface of which is subjected to cutting work to expose the rear side material on the surface. CONSTITUTION:A surface side metal material 1 is overlaid on the rear side with a back side metal material 2 of different kind to be rolled by a multistage continuous rolling mill for providing a wide width sheet. The surface of the sheet is subjected to cutting work to provide a composite plate material 5 exposing a part of the rear side material 2 on the surface. A part of the composite plate material 5 including the rear side exposed part 6 and unexposed part 7 is punched out to provide a blank formed of one rear side exposed part 6 and the other rear side unexposed part 7. The blank is subjected to finishing work properly to provide a completed product. Thus, the soldered joint work in the border between metals of different kinds is not needed.
    • 8. 发明专利
    • MANUFACTURE OF CHAIN
    • JPH03248739A
    • 1991-11-06
    • JP4386890
    • 1990-02-24
    • MASUDA KUNIMITSU
    • MASUDA KUNIMITSU
    • B21L99/00
    • PURPOSE:To manufacture a twist type chain having a cut pattern such as a stripe by forming a chain body in a flat state as free from clearance between ring bodies as possible, cutting and then twisting it. CONSTITUTION:First, after a golden wire-shaped core material 1 is inserted into the internal diameter hole of a platinum tube-shaped external material 2, many ring bodies 4 are connected by a wire 3 obtained by drawing them to constitute the chain body 5. Then, the chain body 5 is squeezed and formed into a flat state as free from clearance between the ring bodies 4 as possible to obtain a flat chain 6. Thereafter, cutting is performed on both sides of one surface of the flat chain 6 to form the striped cut pattern 7 that part of the core material 1 is exposed on the surface. The chain 10 having a striped cut pattern parts 8, 8' and the cut pattern 7 made of the striped non-cut pattern 9 is obtained. Then, spiral forming is performed to twist the chain 10 having the cut pattern 7 to obtain a finished product 11.
    • 9. 发明专利
    • JOINING METHOD OF SMALL-SIZED METALLIC ARTICLES
    • JPS6064760A
    • 1985-04-13
    • JP17200783
    • 1983-09-16
    • TAKAHATA SHIYOUZOUMASUDA KUNIMITSU
    • TAKAHATA SHIYOUZOUMASUDA KUNIMITSU
    • B23K1/00
    • PURPOSE:To join efficiently very small joint parts by disposing a base material which is applied with a joining material on the inside surface and is formed to a desired sectional shape in the prescribed position of the other base material to form a hollow part between the base materials and joining the base materials by heating. CONSTITUTION:A base material 1 which is applied with a joining material 2 consisting of solder or similar material on the inside surface is curved or bent by pressing and is formed to a desired sectional shape having very small joint parts 3, 4. A suitable solvent is applied on the material 1 and thereafter the base material is disposed in the prescribed position of the other base material 5 to face the same to form a hollow part 6 between the materials 1 and 5. The base materials are then heated to melt the material 2 so that the material 2 flows into the spaces between the upper and lowr inside joint parts 3 and 3' as well as upper and lower outside joint parts 4 and 4' formed at the end between the materials 1 and 5, thereby joining the joint parts 3, 3' and 4, 4'. The very small joint parts of the titled parts are thus simply and easily joined.