Masanori Tanno

Title: Masanori Tanno and Low-Phosphorus Steelmaking

Introduction

Masanori Tanno is an inventor based in Tokyo, Japan, associated with JFE Steel Corporation. His patent work addresses steelmaking processes, including methods for producing molten steel with reduced phosphorus content.

Latest Patents

The provided information lists one patent for Tanno: “Method for Manufacturing Low-Phosphorus Molten Steel.” The method uses a steelmaking electric furnace to melt and heat solid iron, optionally combined with molten iron, using electric energy. It removes some or all of the slag formed during melting, then adds dephosphorization flux and taps the refined molten steel. The process sets the composition ratio of the removed slag, [CaO]/([SiO]+[AlO]), between 0.25 and 0.70, inclusive. This approach is intended to separate slag effectively and reduce the lime needed to lower phosphorus content. Tanno is credited with 1 patent in the supplied data.

Career Highlights

Tanno’s listed invention focuses on improving the efficiency of electric-furnace steelmaking. By managing slag composition and removal before dephosphorization, the method aims to reduce lime consumption while producing low-phosphorus molten steel.

Collaborations

The supplied information identifies JFE Steel Corporation as Tanno’s company and names Nobuhiko Oda and Rei Yamada as coworkers. It does not specify their roles in the patent or describe particular collaborative contributions.

Conclusion

Masanori Tanno’s listed patent presents a slag-management method designed to make low-phosphorus steel production more efficient and reduce lime use.