Keisuke Nakata

Title: Keisuke Nakata: Steel Innovation and Patent Contributions.

Introduction

Keisuke Nakata is an inventor associated with Kakogawa, Japan, and Kobe Steel, Ltd. His patent work focuses on high-strength steel and steel products designed for demanding manufacturing applications. He is named on 2 patents.

Latest Patents

Nakata’s listed patents address steel performance and processing:

- **“Galvanized steel sheet for hot stamping, hot stamped part, and method for producing hot-stamped part.”** This invention describes a zinc-plated steel sheet with a specified chemical composition and at least 10 ppm of solid-soluted boron. The base steel sheet has a hot-dip galvannealed or hot-dip galvanized layer on at least one face. The patent also covers a hot-stamped part and a method for producing it.

- **“High-strength steel sheet having excellent delayed fracture resistance.”** This invention concerns steel with a tensile strength of at least 1,700 MPa and a specified component composition. Its metallographic structure contains at least 95 area percent martensite and transition metal carbide amounting to at least 0.8 volume percent.

Career Highlights

Nakata’s listed patent contributions reflect work on steel sheets intended to combine strength with useful manufacturing and performance characteristics. The hot-stamping invention addresses coated steel and part production, while the delayed-fracture-resistance invention focuses on the structure of high-strength steel.

Collaborations

Nakata’s listed coworkers include Junichiro Kinugasa and Sae Hamamoto. His patents are associated with Kobe Steel, Ltd.

Conclusion

Keisuke Nakata’s patent portfolio highlights innovations in galvanized steel for hot stamping and high-strength steel designed to resist delayed fracture.