WO 01/10207 PCT/KROO/00798 Magnet Built-in Float Technical Field This Magnet Include Type Fishing Float, manufactured by a synthetic 5 resin, is easy to confirm a float even on the water surface of backlighting. A magnetic binding vise on a line controls the movement of a fishline by a float built-in magnet. A float (1), as shown in Drawings 1 and 2, stays a fishhook sunken by a sinker at a certain depth below water, as well as catches fish's nibble. The 10 float is composed of: (a) a light wooden body (1a); (b) a pipe (1b) penetrating the body; (c) a ceramic ring (1c) fixed at both ends of a pipe that prevents a scar on a line and reduces a friction factor; and (d) a lead (1d) connected to the lower part of a body (1a) for balancing itself. A fishhook (5) is connected into a sinker (3) by connecting ring (4). A 15 fishline (2) ties with penetrating a pipe (1 b) of a float (1). By fixing a plastic fixer (6), having a bigger external diameter than hollow inside diameter of the float, the plastic fixer (6) connects the upper part of the float (1). Then, the fishhook (5) suspends on the lower part of the water surface (8) as much as length of the fishhook from connection point between the plastic 20 fixer and the upper part of the float. 1 WO 01/10207 PCT/KROO/00798 Background Art If dropping a fishhook (5) as shown in Drawing 1, a fish confirms the bait whether it is eatable or not, and takes the bait and runs fast. At this time, fishing fails in many cases. That's because a fishhook (5) 5 having a resistivity (a buoyancy) moves as shown on Drawing 2 with a dotted line when a fish moves with the fishhook and bait, and the fish feels a buoyancy (resistivity) and so spews the bait. The reason is that many of fishes are very sensitive while seeking for prey and so they have the habit of spewing the bait giving a feeling of 10 buoyancy or an extraneous matter. An existing method that stays a fishhook (5) and the bait by a plastic fixer (6) uses heavier sinker to reduce the buoyancy at a minimum and thereby more parts of the float (1) are sunken in the water. Even though such a buoyancy may be a little reduced when a fish rises to the fishhook (5) and the bait, a part of float (1) becomes to 15 expose a little bit on the surface as much as a buoyancy is reduced, thus it is not easy to catch fish's nibble due to reduction of bait admission. In addition, the existing float (1), as shown in the Drawing 2, is exterior finished with a various of painters (1f) to high the bait admission. However, like the configuration in Drawing 3, when a sunlight (9a) 20 locates at the same direction of an eye (9b) of the float (1), it becomes a state of backlighting, and thus a movement of the float (1) or fish's nibble is not so visible. 9 WO 01/10207 PCT/KROO/00798 Disclosure of Invention In this invention, a new technology has been employed that a line, combined with a fishhook and bait, is supported by a magnetic power, and 5 a fish cannot feel a buoyancy of the float when a fish takes bait. A fish feels a lesser magnetic power than a buoyancy of the float, so a fish can be easily hooked. Additionally, this invention, by using a structure of coating phenomena, avoids the sensitivity of a fish against the bait even though 10 many parts of the float are exposed on the surface, and enhance the bait admission of a fish to easily grasp the movement of the float or fish's nibble. It doubles the taste of the fishing by transferring a fish's power to the end of the fisher without filtering. Mass production of the float is possible because a major material of the float is a synthetic resin, which can take a role as a 15 binding vise, an essential tool in sea fishing. The magnetic float is compounded of (a) an upper part of the float designed with a normal shape in which center is a hollow projection and inside is a coated or vacuum reflecting film; (b) a lower part of the float designed with a normal shape and gone in gear with the upper part of the 20 float in which center is a hollow projection; (c) a semi-transparent colored layer coated on the exterior of the float to high the bait admission of a fish; (d) a transparent layer, coated on the semi-transparent layer, to help a .1 WO 01/10207 PCT/KR0O/00798 phenomenon that transmits a backlight of the float to the front of the float; a weighing sinker inserted in the projection of the lower part of the float; (e) a magnet built in the lower part of the float; and (f) a magnetic binding vises put on a fishline which outside diameter is bigger than a hollowed inside 5 diameter of the float. The basic concept of this invention is that a magnet built-in float attracts a binding vise on a line and thus a fish cannot feel any resistivity (or a buoyancy) except a fine magnetic power, with the consequence that a fish is able to take the bait with easy. In this invention, a phenomenon has been applied to high bait 10 admission, by the combination of 3 finishes; a coated or vacuum reflex film, a transparent or semi-transparent resin, and an exterior transparent coating. Furthermore, marking of N, S direction on the upper part of the float can take a role as a binding vise on the water surface. When a fish does not snap at the bait, a magnetic binding vise and a 15 magnet do not break away. When a fish hauls in a fishhook, a magnetic binding vise loses its magnetic power with easy, and thus a fish, when rising to the bait, feels little buoyancy (or resistivity) and the fish is biting well. When a fishing tackle is thrown into water, the upper part of the float 20 locates a knot only even a tackle is sunken, and a magnetic binding vise locates in a hollow of the float. Therefore, when a tackle is going down water, the tackle can easily be immerged into water due to much reduced Ai WO 01/10207 PCT/KROO/00798 resistivity of water, differently from the case of plastic fixer (outside diameter is bigger than inside diameter of a hollow). Existing float has shown a swaying because all weights below the float (i.e., fishhook, connecting ring, bait, sinker, etc.) arrive at the upper part of the float 5 (hollow exit), however; in this magnet built-in float all weights of the fishing tackle work at magnetic part on the lower part of the float, thus the tackle is very stable on the water surface. Brief Description of Drawings 10 Drawing 1: Status drawing of use of the float Drawing 2: Section of the float movement when fish's nibble is grasped. Drawing 3: State of backlighting of the float Drawing 4: Squint view of demonstration. Drawing 5: Section of the upper and lower parts of the float before fixing. 15 Drawing 6: Section of the upper and lower parts of the float after fixing. Drawing 7: Enlarged section of the float Drawing 8: Sections of sinker and magnet Drawing 9: Section of sinker and magnet by other application Drawings 10 & 11: Squint view of chemilight hollow 20 Drawing 12: Squint view by other application Drawing 13: Squint view by application of a bar float 5 WO 01/10207 PCT/KROO/00798 [Symbol Legend] 1.10: Float 2: Fishline 3: Sinker 4:connecting ring 5: fishhook 6: fixer 6': binding vise 7: Knot 5 11: upper part of the float 11': lower part of the float 12, 12': projection 13, 13', 13": hollow 14: reflex film 15: semi-transparent colored layer 16: Transparent layer 20: sinker 10 21, 22, 23: magnet 30: bar float Configuration of the Invention The float (10) is made of a transparent or semi-transparent synthetic resin, i.e. of a polycarbonate. The upper (11) and lower (11') parts of the 15 float are separately manufactured. They are geared each other and fixed. On their surface, colored or transparent paint is coated to form semi transparent colored layer (15) and transparent layer (16). On the lower part (11') of the float are a magnet (21) and a sinker (20) inserted. Inside of the upper part of the float is coated or painted with reflex materials or finished 20 vacuum to form a reflex film (14). A magnetic binding vise, which outside diameter is smaller than inside diameter of hollow (13) on the projection (12) (12') of the float (10), is put on a line. 6 WO 01/10207 PCT/KROO/00798 The upper part of the float (11) forms a projection (12) with a hollow (13) in a center. The lower part (11') of the float forms a hollow (13') based projection (12'), but the upper and lower parts (11) (11') of the float are mutually geared. Projections (12) (12') are also geared to closely fixed. 5 At this time, when closely gearing the upper and lower parts of the float, they are geared without error. Hollows (13) (13') (13") adhere closely to each other, fixed with an ultrasonic wave fusion or adhesives. In approach to hollows (13) (13') (13") of the upper (11)/lower (11') parts of the float, ceramic rings (17) (17') are inserted to protect a line and 10 down the friction factor. Inside of the float (10) is finished vacuum with silver or aluminum, chromium, white paint, etc. or coated or painted to form a reflex film (14). The semi-transparent colored layer of the float (10) is coated with combination of color paint and a luminous or a fluorescent paint. However, 15 a lower part (11') of the float, immerged into water, may be dark painted to lead the fish to idle his weather eye open. Outside of the semi-transparent colored layer (15) forms a transparent layer (16) for phenomenon. A transparent layer (16) can be formed either on inside or outside of the semi-transparent colored layer (15). Whatsoever the location for the 20 transparent layer is made, a phenomenon is formed. A reflex film (14) can be formed inside of the float's upper part (11) only. But it can be formed at inside of the float's lower part (11'). 7 WO 01/10207 PCT/KROO/00798 In projection (12) of the lower part (11') of the float, a sinker (20) made of a high specific gravity substance like a brass is closely exterior adhere to the utmost bottom of the projection to weigh the float (10) on the water surface. 5 A ring magnet (23) or a horseshoe--shaped magnet (21) (22) is put and fixed on ithe sinker (20), which indicates the N and S poles of the magnet (21) (22). In outside of the upper part (11) of the float, N and S poles are marked so that, when a float (10) is drawn into standing water like a swampy, it can 10 take a role as a binding vise by its built-in magnet. There is chemilight hole (18) (18') in horizontal or vertical direction to put the chemilight (19) in the upper part of the float (11) for night fishing purpose. As shown in Drawing 12, a fish line (2) can be inserted in the float 15 horizontally. At this time, the center of the upper part (11) of the float can be with chemilight hole (18'), which a magnet (21) (22) (23) locates around a hollow (13") that a line penetrates. In addition, this invention, as shown in Drawing 13, can be applied to a bar float (30), too. 20 The configuration of this invention is that a magnetic binding vise (6') is put on a line (2) penetrating a hollow (13) (13') (13"), and then fixed by a knot (7), which locates at a certain location of the line (2) and then fixed to 8 WO 01/10207 PCT/KROO/00798 line (2). The knot (7) of the line (2) is used to adjust the sinking depth of the fishhook (5). When throwing a hook (5) with the bait into water, the fishhook (5) is sunken to beneath of water (8) due to a magnet gravity and weight of sinker 5 (3), however; the fishhook stays at that point without sinking down any more by a power of the magnet (21) when a knot (7)-supported magnetic binding vise (6') passes around the magnet (21) inserted in the projection (12') of the float (10). In other words, as the magnet (21) attracts iron, the magnet attracts 10 the magnetic binding vise (6') on a line (2) with a magnetic power endurable the weight of sinker (3) under water. Accordingly, a line (2) will not be sunken any more by a weight of sinker (3), and the fishhook (5) stays at the desired depth. Under this situation, when a fish snaps the bait, a magnetic binding 15 vise (6') inserted on a knot (7) loses the power of the magnet (21) by a power transmitting to a line (2). After that, a line (2) penetrates a hollow (13) (13') (13") as the same speed of a fish movement, and then is drawn into the water. At this time, severe swaying is expected because a line (2) intends to line up from a fishing rod to a fish mouth, however; by sinking to 20 the water, fish's nibble can be confirmed to the fisher. When a fish rises to the bait, the fish feels fine power only that a magnetic binding vise (6') escapes from the magnet (21), and so the fish q WO 01/10207 PCT/KROO/00798 bites the bait without any sensitivity of the buoyancy (resistivity) of the float or the fish is hooked. When a light arrives at one surface of the upper part (11) of the float, the light is transferred to the opposite of the float (10), which is caused by 5 a transparent or semi-transparent colored synthetic resin layer of the upper part (11) of the float; a phenomenon by exterior transparent layer; and a light reflection of the reflex film (14). In this case, a shadow disappears at the opposite of the float, and so the other side becomes lighten. Even though a transparent layer forms inside of the semi-transparent colored 10 layer (15), the phenomenon can be maintained. In other words, the concept of this invention is to apply the phenomenon and remove the shadow area of the float. Under such backlighting, a bait admission is excellent and so it is easy to confirm the movement of the float (10). 15 Especially, the light on the float takes a role as a reflex film (14), and thus is transferred to the opposite of the float (10) through a transparent or semi-transparent synthetic resin layer and/or exterior transparent layer (16). Accordingly, under the backlighting, the float is away from a shadow and so it is easy to grasp the movement of the float (10). 20 When a float (10) is drawn into a staying water like a pool or a sea rock, the float stands right by a sinker (20), and has a binding vise function of N and S poles identification by a built-in magnet (21), which N and S 10 WO 01/10207 PCT/KRO0/00798 markings on the upper part (11) of the float indicate the North and South poles. With a different shape, this float can be applied to a bar float. Only difference is a shape of the float (10), but function principles and 5 configurations are the same. Industrial Applicability This invention has achieved a new technology how to easily fish that, when fixing a float on a line, a magnet works without direct connection 10 between the float and a binding vise. When a fish catches up bait, the fish does not feel almost the resistivity (or buoyancy), and so fish grasps the bait as a natural prey. Transferring of the light to the opposite of the float, due to phenomenon of a reflex film and the float's upper part, highs the bait admission under a state of backlight. Grasping of fish's nibble is not hard 15 due to great exposure of the float on the surface, with no impact on the sensitivity of the fish against the bait. Marking of N and S poles on the exterior upper part of the float functions a binding vise, an essential tool in fishing, climbing and other leisure activities. 20 11