This inventor holds 2 USPTO granted patents. Top assignees: Tokuyama Corporation, Tokuyama Soda Kabushiki Kaisha. Active years: 1988-2001.
Company Filing History:
Years Active: 1988-2001
Title: The Innovations of Toru Nonaka
Introduction
Toru Nonaka is a notable inventor based in Tokuyama, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the area of cleaning agents for photoresist ashing residues. His work has led to the development of innovative processes that enhance the efficiency of semiconductor substrate washing.
Latest Patents
Toru Nonaka holds 2 patents, with his latest inventions focusing on a process for washing semiconductor substrates using organic solvents. This process involves a three-stage continuous circulation system. The first stage includes supplying an organic solvent to a washing device for cleaning the semiconductor substrate. The second stage involves using the withdrawn organic solvent, which contains water, electrolytes, and suspended substances, in a pervaporation device to separate and remove mainly water. Finally, the third stage recycles the organic solvent through a distillation device to obtain a distillate, which is then reused in the first stage.
Career Highlights
Throughout his career, Toru Nonaka has worked with prominent companies such as Tokuyama Soda Kabushiki Kaisha and Tokuyama Corporation. His experience in these organizations has allowed him to refine his expertise in semiconductor cleaning processes and contribute to advancements in the industry.
Collaborations
Toru Nonaka has collaborated with notable colleagues, including Yasuhiro Kagiyama and Koichi Doi. These partnerships have facilitated the exchange of ideas and fostered innovation in their respective fields.
Conclusion
Toru Nonaka's contributions to semiconductor technology through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the industry and pave the way for future advancements.