Toshihiko Ito

Title: Toshihiko Ito: Inventor of a Pressurized Soil-Transporting Vehicle.

Introduction

Toshihiko Ito is an inventor associated with Kashiwara, Japan, and Okumura Corporation. His recorded patent concerns equipment for transporting soil excavated by a shield machine while maintaining pressure.

Latest Patents

The available information identifies one patent associated with Ito: “Soil transporting vehicle for transporting soils excavated by shield.” The invention describes a pressure-resistant cylindrical container with openings aligned along its length and a mechanism for conveying soil axially. A chassis supports the container so it can rotate between an upward-facing soil-loading position and a downward-facing discharge position.

The vehicle also includes a gas inlet, a pressure-regulating valve, and a compressor. Before soil enters the container from the shield machine’s pressure compartment, pressurized gas raises the container’s internal pressure to substantially match the compartment’s pressure. This arrangement is designed to support soil transfer while maintaining pressure conditions.

Career Highlights

Ito’s listed patent reflects work on specialized machinery for shield-tunneling operations. Its combination of a rotatable container, soil-conveying mechanism, and pressure-control components addresses the handling of excavated material in a pressurized environment. The supplied information associates him with 1 patent and identifies Okumura Corporation as his company.

Collaborations

The available information connects Ito’s work with Okumura Corporation. No additional collaborators or joint inventors are identified in the supplied details.

Conclusion

Toshihiko Ito’s recorded invention focuses on transporting shield-excavated soil while managing pressure between the vehicle and the shield machine. It represents a specialized engineering contribution associated with Okumura Corporation.