Toshikazu Irisawa

Title: Innovations of Toshikazu Irisawa

Introduction

Toshikazu Irisawa is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of magnetic recording technology, holding two patents that showcase his innovative spirit and technical expertise.

Latest Patents

One of his latest patents is for a magnetoresistance effect element. This invention includes a barrier layer, a reference layer formed on one surface of the barrier layer, a free layer on the other surface, and a pinned layer placed on the opposite side of the reference layer. The pinned layer consists of a structure obtained by stacking layers of Ni, Co, Pt, Co, Ru, Co, Pt, Co, and Ni in a specific order. Another significant patent is a method for manufacturing a magnetic recording medium. This method involves a non-magnetic substrate, a soft magnetic underlayer, and an orientation control layer that manages the orientation of the upper layers. The perpendicular magnetic layer, which is laminated on the substrate, features a magnetization easy axis oriented mainly perpendicularly. This layer includes multiple magnetic layers, each subjected to crystal growth to form columnar crystals.

Career Highlights

Toshikazu Irisawa has worked with prominent companies such as Canon Anelva Corporation and Showa Denko K.K. His experience in these organizations has contributed to his development as an inventor and has allowed him to refine his skills in magnetic technologies.

Collaborations

Throughout his career, Toshikazu has collaborated with talented individuals, including Takuya Seino and Kazumasa Nishimura. These collaborations have likely enriched his work and led to further advancements in his field.

Conclusion

Toshikazu Irisawa's contributions to magnetic recording technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry and inspire future innovations.