Saburo Ishijima

Title: The Innovations of Saburo Ishijima

Introduction

Saburo Ishijima is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced vacuum systems and valve arrangements. With a total of three patents to his name, Ishijima's work reflects a commitment to innovation and practical solutions in industrial applications.

Latest Patents

One of Ishijima's latest patents is a sluice valve arrangement designed to create an air-tight partition or communication between a vacuum treatment chamber and the atmosphere or a pre-chamber. This innovative arrangement includes a valve seat member with a cylindrical or spherical design, featuring an opening and a pair of guide rails attached to its inner circumference. The valve member is movably supported on these guide rails and is equipped with means for air-tight engagement with the valve seat. The curvature of the valve member matches that of the seat member, and the engagement means consists of multiple bellows that can expand using compressed gas or air.

Another significant patent is a vacuum furnace for heat treatment. This furnace comprises a heating chamber, pre-exhaust chambers for feeding and discharging workpieces, and vacuum valves that partition the oven from the pre-exhaust chambers. The design includes a delivery line assembly that transports workpieces through the furnace, with an elevating mechanism to lift the workpieces to the heating chamber for treatment. This innovative furnace design enhances efficiency and effectiveness in heat treatment processes.

Career Highlights

Throughout his career, Saburo Ishijima has worked with prominent companies such as Japan Oxygen Co., Ltd. and Nippon Sanso Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various engineering projects that emphasize innovation and efficiency.

Collaborations

Ishijima has collaborated with notable individuals in the field, including Hiroshi Ishii and Hiroshi Morii. These collaborations have fostered a creative environment that encourages the exchange of ideas and advancements in technology.

Conclusion

Saburo Ishijima's contributions to engineering through his patents and collaborations highlight his innovative spirit and dedication to advancing technology. His work continues to influence the industry and inspire future inventors.