Yutaka Hirashima

Title: Yutaka Hirashima: Innovator in Circuit Substrates and Heat-Resistant Materials

Introduction

Yutaka Hirashima is a notable inventor based in Omuta, Japan. He has made significant contributions to the field of materials science, particularly in the development of circuit substrates and heat-resistant electrode materials. With a total of 3 patents to his name, Hirashima's work has had a considerable impact on various technological applications.

Latest Patents

Hirashima's latest patents include a circuit substrate that features a ceramic substrate and an aluminum circuit. This circuit is bonded to the ceramic substrate via a layer comprising aluminum and copper. Another significant patent is for a heat-resistant electrode material, which consists of 40 to 60 wt % of at least one of zirconium diboride (ZrB₂) and titanium diboride (TiB₂), 20 to 50 wt % of boron nitride (BN), and not more than 30 wt % of aluminum nitride (AlN). This innovative material is utilized in electrodes of various plasma-generating apparatuses, such as ion sources and plasma etching equipment.

Career Highlights

Throughout his career, Yutaka Hirashima has worked with prominent companies in the technology sector. Notably, he has been associated with Denki Kagaku Kogyo Kabushiki Kaisha and Tokyo Electron Limited. His work in these organizations has allowed him to develop and refine his inventions, contributing to advancements in the industry.

Collaborations

Hirashima has collaborated with esteemed colleagues, including Kei Isozaki and Yoshitaka Taniguchi. These partnerships have fostered a creative environment that has led to innovative solutions in the field of materials science.

Conclusion

Yutaka Hirashima's contributions to circuit substrates and heat-resistant materials exemplify his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving the efficiency and effectiveness of various electronic applications.