Shimizu Construction Co., Ltd.

Tomoo Shokawa

Akira Okada

Yutaka Saito

Takanori Sato

Yasushi Watanabe

Kenichi Ikeda

Yasuo Kajioka

Osamu Hosokawa

Tomio Komine

Yasukazu Nakamura

Hideyo Shiokawa

Toshio Kumagai

Yoshihiro Orito

Seiho Kitagawa

Hajime Nomura

Takeshi Sano

Kazumi Okuzumi

Kazunori Koshida

Hideo Nakashima

A concrete leveling machine is provided which propels itself over the surface of laid concrete and by use of rotating augers or oscillating stabilizers and a temper, levels and finishes the surface to a prescribed level and condition. A laser reference beam transmitted over the surface is detected by detectors attached to the leveling section of the machine and deviation of the level of the detectors from a reference level is adjusted so that the leveling section is also brought to a level required to produce the desired surface level. The machine is turned by a turntable integral with the main body which lifts the machine allowing it to turn by differential drive to its drive wheels.

Concrete leveling machine

A concrete filled steel tube column. The concrete filled steel tube column includes a steel tube having an inner face; a concrete core disposed within the steel tube; and a separating layer interposed between the inner face of the steel tube and the concrete core for separating the concrete core from the inner face of the steel tube so that the steel tube may not be bonded to the concrete core. After the separating layer is formed on the inner face of the steel tube, the concrete is charged into the steel tube to form a concrete core.

Structural filler filled steel tube column

Growing community of inventors

Tokyo, Japan

Tomoo Shokawa