Location History:
- Niiza, JP (2009)
- Tokyo, JP (2010 - 2021)
Company Filing History:
12 out of 1,268 
9 out of 5,966 
1 out of 35,658 
Years Active: 2009-2021
Title: Yosuke Kojima: Innovator in Photomask Technology
Introduction
Yosuke Kojima, an accomplished inventor based in Tokyo, Japan, has made significant contributions to the field of photomask technology. With a remarkable portfolio of 13 patents, Kojima continues to advance innovations that play a crucial role in the semiconductor manufacturing process.
Latest Patents
Among his latest patents, Kojima has developed a photomask blank, photomask, and a method of photomask manufacturing that exhibit exceptional characteristics for wafer transfer and irradiation resistance. His photomask blank is specifically designed for exposure wavelengths of 193 nm, featuring a light-transmissive substrate, a phase shift film with considerable light transmittance, and a light-shielding film. The innovative phase shift film is composed of layers that utilize both silicon nitride and silicon oxynitride materials, tailored to enhance performance in photolithography applications.
Additionally, Kojima's methods involve stacking films that improve etchability and durability during the manufacturing process. His patents exemplify the cutting-edge research that drives advancements in semiconductor fabrication.
Career Highlights
Kojima has accumulated valuable expertise from prominent companies including Toppan Printing Co., Ltd. and Shin-etsu Chemical Co., Ltd. His work in these organizations has equipped him with the knowledge and skills to innovate within the photomask industry, leading to the development of his notable patents.
Collaborations
Throughout his career, Yosuke Kojima has collaborated with talented professionals such as Hiroki Yoshikawa and Yukio Inazuki. Their combined efforts have played a pivotal role in advancing the research and development of photomask technologies.
Conclusion
With a dedication to innovation and a strong professional background, Yosuke Kojima stands out as a leading inventor in the field of photomasks. His ongoing contributions continue to shape the future of semiconductor manufacturing, ensuring that technology keeps pace with the demands of an ever-evolving industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.