Michimasa Okubo

Title: Michimasa Okubo: Innovator in Medical Alloys

Introduction

Michimasa Okubo is a prominent inventor based in Isehara, Japan. He has made significant contributions to the field of medical alloys, particularly in the development of platinum-tungsten (Pt-W) alloys. With a total of 4 patents to his name, Okubo's work has advanced the capabilities of medical tools used in various applications.

Latest Patents

One of Okubo's latest patents is for a medical Pt-W alloy. This invention contains 10 mass % or more and 15 mass % or less of tungsten, with the balance being platinum and inevitable impurities. By limiting the zirconium content to 1000 ppm or less, the workability of the alloy is significantly improved, especially during hot working processes. Additionally, further limiting the calcium content to 250 ppm or less enhances the alloy's workability. This invention is particularly beneficial for processing into wires used in embolic coils and guide wires.

Another notable patent is for a medical Pt alloy wire, which is made from a Pt-W alloy containing 10% by mass or more and 15% by mass or less of tungsten. This alloy wire exhibits a Vickers hardness of 400 Hv or more and 600 Hv or less, providing superior hardness and strength compared to conventional Pt alloy wires with similar compositions. The properties of this Pt alloy wire make it ideal for use in medical tools such as embolic coils and guide wires, while also ensuring good workability during secondary processing.

Career Highlights

Throughout his career, Michimasa Okubo has worked with notable organizations, including Tanaka Kikinzoku Kogyo Co., Ltd. and Tokushima University. His experience in these institutions has allowed him to refine his expertise in the field of medical alloys and contribute to innovative solutions.

Collaborations

Okubo has collaborated with several talented individuals in his field, including Yuki Horinouchi and Mizuki Nihei. These collaborations have further enriched his research and development efforts, leading to advancements in medical alloy technologies.

Conclusion

In summary, Michimasa Okubo is a distinguished inventor whose work in medical Pt-W alloys has made a significant impact on the medical field. His innovative patents and collaborations highlight his commitment to advancing technology in medical applications.