Other

Maeda Corporation Limited

Mamoru Kawaguchi and Maeda Corporation

Akira Taga

Toshimasa Hirasawa

Mamoru Kawaguchi

Tatsuo Hatato

Kaoru Yamada

Yoshio Ishikawa

Hiroaki Fukumoto

Ikuo Tatemichi

Tatsuo Hatado

This invention provides a plant growth sheet structure which includes a base web layer and a core layer integrally coupled together in this order, a base web layer, a plant seed holding layer and a core layer integrally coupled together in this order, or a base web layer, a core layer, a plant seed holding layer and a cover web layer integrally coupled together in this order, and is provided at its surface with plant protection projections, and also provides a natural turf sheet structure including a natural turf grown on the plant growth sheet structure. This invention also provides a turf growing method in which a semi-artificial turf sheet structure including an artificial turf portion and a natural turf portion is laid over a concrete wall surface for performing hydroponics of the natural turf portion, and also provides a method of laying a turf sheet structure, in which a similar semi-artificial sheet structure is accommodated in an outdoor accommodating place for growing a natural turf portion, and is transferred to and laid in large-scale facilities on demand.

Plant growth sheet structure, natural turf sheet structure, method of growing turf and method of laying turf sheet structure

A dome shaped roof structure suitable for a stadium for indoor athletic sports is disclosed. The dome shaped roof structure comprises a main frame for covering the inside of the stadium and a reinforcing frame. The reinforcing frame comprises: cables disposed in the inner side of the main frame and extended radially from the central portion of the main frame to the bottom peripheral border; circular cables disposed concentrically about the peripheral border of the main frame; and strut members that have each upper end connected to the steel member of the main frame at an intersecting point of the radiating cables and the circular cables, and the strut members vertically supported by the radiating cables and the circular cables; and wherein tension is introduced to the radiating cables in the direction of the bottom peripheral border and the outer ends of the radiating cables are fixed with the main frame, so that the steel members of the main frame are thrust up by the strut members of the reinforcing frame.

Dome shaped roof structure

The present invention relates to an openable roof having two pairs of half dome openable roofs provided on a ring shaped set roof having a flat upper surface. In the center of the set roof, an aperture is provided; this aperture being opened or closed by these two pairs of openable roofs. Furthermore, either respective pair of these two pairs of openable roofs may be selected and utilized to open and close the aperture as necessary.

Openable and closeable roof construction

Growing community of inventors

Tokorozawa, Japan

Akira Taga