Hiroshi Shishido

Title: Hiroshi Shishido: Innovator in Steel Processing Technology

Introduction

Hiroshi Shishido is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of steel processing technology, holding 2 patents that showcase his innovative approaches.

Latest Patents

One of his latest patents is a method and apparatus for continuous finishing hot-rolling a steel strip. This invention involves partially joining the rear end of a preceding steel strip with the leading end of a succeeding steel strip after they have undergone a rough hot-rolling step. The joint is then flattened and rolled with a first stand of a tandem rolling mill. The mill is equipped with multiple stands that include work rolls and backup rolls, allowing for compression stress to act at the unjointed section of the strips. Shape-control-rolling is performed on the joint with subsequent stands, ensuring that the section of the steel strip other than the joint is subjected to shape-control-rolling at all stands.

Another significant patent involves the production of grain-oriented silicon steel sheets that have a very low iron loss. These sheets are characterized by a W.sub.17/50 of lower than 0.90 W/kg and a silicon content of 2-4%. The production process includes the use of inhibitors such as selenium and sulfur, as well as antimony, arsenic, bismuth, and tin. The final gauge of the sheets is maintained between 0.15-0.25 mm, with a forsterite coating applied during final annealing.

Career Highlights

Hiroshi Shishido has had a distinguished career at Kawasaki Steel Corporation, where he has been instrumental in advancing steel processing technologies. His work has not only contributed to the efficiency of steel production but has also enhanced the quality of the final products.

Collaborations

Throughout his career, Shishido has collaborated with esteemed colleagues such as Kenji Kataoka and Toshisada Takechi. These partnerships have fostered innovation and have led to the development of groundbreaking technologies in the steel industry.

Conclusion

Hiroshi Shishido's contributions to steel processing technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the industry and pave the way for future advancements.