This inventor holds 2 USPTO granted patents. Top assignees: Nisso Engineering Co., Ltd, Mtc Co., Ltd., Other. Active years: 1990-1996.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Meguro, JP (1990)
- Tokyo, JP (1996)
Company Filing History:
2 out of 6 
1 out of 3 
1 out of 834,513 Years Active: 1990-1996
Title: Innovations by Toshimitsu Kaji
Introduction
Toshimitsu Kaji is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor manufacturing through his innovative cleaning methods. With a total of 2 patents, Kaji's work focuses on enhancing the efficiency and cost-effectiveness of semiconductor production.
Latest Patents
Kaji's latest patents include a "Rotary cleaning method with chemical solutions" and a "Method for recirculating high-temperature etching solution." The rotary cleaning method aims to provide a cleaning apparatus that reduces the total cost of producing high-performance semiconductors using silicon wafers. This method decreases the semiconductor production cost, minimizes the consumption of chemical solutions, and reduces cleaning time. It involves a series of chemical-solution-cleaning processes that continuously feed a chemical solution to the surface of the object being cleaned while rotating it in a closed cleaning bath. The method also incorporates an ultrapure-water-cleaning process and concludes with drying the object after cleaning.
The second patent, concerning the recirculation of high-temperature etching solutions, outlines a process that involves continuously removing a portion of the etching solution from the bath, adjusting its concentration with pure water, heating it, and then recirculating it back into the etching bath. This innovative approach enhances the efficiency of the etching process in semiconductor device manufacturing.
Career Highlights
Throughout his career, Toshimitsu Kaji has worked with reputable companies such as Nisso Engineering Co., Ltd. and MTC Co., Ltd. His experience in these organizations has contributed to his expertise in semiconductor technology and cleaning methods.
Collaborations
Kaji has collaborated with notable colleagues, including Hiroyuki Horiki and Yasukatsu Nishikata. These partnerships have likely fostered innovation and development in his projects.
Conclusion
Toshimitsu Kaji's contributions to the semiconductor industry through his innovative cleaning methods and processes demonstrate his commitment to enhancing production efficiency. His patents reflect a deep understanding of the challenges in semiconductor manufacturing and offer practical solutions to improve the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile