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    • 7. 发明专利
    • BAMBOO SECTION LAMINATED PLYWOOD MATERIAL
    • JPH02233204A
    • 1990-09-14
    • JP5421889
    • 1989-03-06
    • GIKEN NAISOU KKKIYOOKA TAKATOSHISASAKI KENKO
    • KIYOOKA TAKATOSHISASAKI KENKO
    • B27D5/00F21V3/04
    • PURPOSE:To enable selective transmission of light and perfume through fine pores formed in the section of a bamboo by a method wherein a bamboo material is cut in a square, the surfaces of plate pieces are adhered and joined to each other, and further after the sides of the plate pieces of a plurality of plywood are adhered and joined to each other, the laminate is cut to proper thickness. CONSTITUTION:Plywood A is formed such that a bamboo material is cut in a square to form a plurality of plate pieces 1, surfaces 1a of the plate pieces are firmly adhered and joined with each other by means of an epoxy adhesive and an aqueous vinyl urethane adhesive. Sides 1b of the plate pieces of a plurality of plywood A are adhered and joined to each other, and the laminate is cut to a proper thickness W along a cut surface 1c of the plate piece. A vessel element of a bamboo is a fine pore with a diameter of approximately 40 micron, while in a process of the passage of, for example, illumination light through said fine pores, only the red color, having a longest wavelength, of beams in seven colors passes, and other colors are adsorbed in the process of the passage of them through the fine pores. Thus, the surface of a bamboo section lamination plywood material emits light in a red color. Similarly, when a perfume is filled in a case C, a perfume can be emitted to the interior of a room outside the bamboo section lamination plywood material.
    • 10. 发明专利
    • MANUFACTURE OF BAMBOO BOARD
    • JPS6490702A
    • 1989-04-07
    • JP25018587
    • 1987-10-02
    • KIYOOKA TAKATOSHIYAMAZAKI KATSUJI
    • KIYOOKA TAKATOSHI
    • B27J1/00
    • PURPOSE: To facilitate the manufacture of a rectangular bamboo board through the cutting of the round bamboo material and extend the application for the building and floor material by rectangularly cutting a bamboo piece made by vertically cutting bamboo material to the elongated direction. CONSTITUTION: A bamboo material 1 is cut to form a plurality of vertically cut pieces 2. A bamboo whose stem hypodamic portion is thick is preferably used for bamboo material 1. The vertically cut pieces 2 are rectangularly cut to form a bamboo board. It is advisable from the yield rate viewpoint that when rectangularly cutting the bamboo material, the long side thereof is in contact with the inner circumference of the bamboo material 1 so that the external skin may not remain on the bamboo board 4 since the vertically cut piece 2 is bent like an arc. The surface of the bamboo board 4 is ground and finished to remove the outer skin because said skin becomes discolored with elapse of time. Since the bamboo board 4 is made of hypodamic portion with many vascular bundles, it has strength, fragility-resistance, bend-resistance, corruption-resistance, durability and waterproof characteristics.