Kouki Toishi

Title: Kouki Toishi: Innovator in ITO Technology

Introduction

Kouki Toishi is a prominent inventor based in Honjo, Japan. He has made significant contributions to the field of indium tin oxide (ITO) technology, holding a total of 4 patents. His work focuses on enhancing the production and application of ITO materials, which are crucial in various electronic devices.

Latest Patents

Toishi's latest patents include innovations such as a sintered ITO and an ITO sputtering target. The sintered ITO boasts a relative density of at least 88% and an oxygen content ranging from 15.5 to 17.0 wt %. The ITO sputtering target, made from this sintered ITO, allows for an optimal range of oxygen proportions in the argon and oxygen gas mixture used during sputtering. This advancement facilitates the consistent formation of high-quality ITO films. Additionally, his patents detail the starting powders for ITO production, specifying the salts, precipitants, and reaction conditions necessary to synthesize a starting oxide that is free from volatile components. The process includes dispersing the starting oxide into particles with specified flowability, pressing the powder into a compact, and sintering it in either air or an oxygen-rich atmosphere to produce a high-density sinter suitable for sputtering targets.

Career Highlights

Kouki Toishi is associated with Dowa Mining Co., Ltd., where he has been instrumental in advancing ITO technology. His expertise and innovative approaches have positioned him as a key figure in the field.

Collaborations

Toishi has collaborated with notable colleagues, including Kohichiro Eshima and Katsuaki Okabe. Their combined efforts have contributed to the development of cutting-edge technologies in ITO production.

Conclusion

Kouki Toishi's contributions to ITO technology through his patents and collaborations highlight his role as an influential inventor in the field. His work continues to impact the production and application of ITO materials in various industries.