Akira Chiba

Title: Akira Chiba: Innovator in Photomask Technology

Introduction

Akira Chiba is a notable inventor based in Itami, Japan. He has made significant contributions to the field of photomask technology, particularly through his innovative patents. With a total of 2 patents, Chiba's work has had a considerable impact on the industry.

Latest Patents

Chiba's latest patents include a phase-shifting photomask blank and a method of manufacturing the same. The phase-shifting photomask blank is created by sputtering a target of molybdenum silicide with a sputtering gas that includes nitric monoxide in a specific volume ratio. This process results in a nitrided-oxide film of molybdenum silicide being formed on a transparent substrate. Additionally, a base phase-shifting film can be established on the substrate, followed by the formation of a nitrided-oxide film as a surface layer. The transparent substrate may also undergo heat treatment at temperatures of 200 degrees Celsius or higher.

Career Highlights

Throughout his career, Akira Chiba has worked with prominent companies such as Ulvac Coating Corporation and Mitsubishi Electric Company. His experience in these organizations has allowed him to refine his skills and contribute to advancements in photomask technology.

Collaborations

Chiba has collaborated with notable coworkers, including Akihiko Isao and Susumu Kawada. These partnerships have fostered innovation and development in their respective fields.

Conclusion

Akira Chiba's contributions to photomask technology through his patents and collaborations highlight his role as an influential inventor. His work continues to shape the industry and inspire future innovations.