Company Filing History:
Years Active: 2002
Title: Kiyomi Arakawa: Innovator in Exhaust Gas Treatment
Introduction
Kiyomi Arakawa is a notable inventor based in Kanagawa-ken, Japan. She has made significant contributions to the field of environmental technology, particularly in the treatment of exhaust gases. Her innovative approach addresses the critical issue of nitrogen oxides emissions, which are harmful pollutants.
Latest Patents
Kiyomi Arakawa holds a patent for a method aimed at removing nitrogen oxides in exhaust gas. This process involves mixing exhaust gas generated during the chemical vapor deposition process for semiconductor production, which contains dinitrogen monoxide (N2O), nitrogen monoxide (NO), and nitrogen dioxide (NO2), with ammonia (NH3). The amount of ammonia used is between 0.5 to 3 times the sum of the stoichiometric amounts corresponding to nitrogen monoxide and nitrogen dioxide. The mixed gas is then contacted with a noble metal catalyst at a sufficiently high temperature to decompose the nitrogen oxides. This innovative method allows for the treatment of dinitrogen monoxide, nitrogen monoxide, and nitrogen dioxide in one step, without producing dinitrogen monoxide as a by-product.
Career Highlights
Kiyomi Arakawa is currently employed at Ebara Corporation, where she continues to develop technologies that contribute to environmental sustainability. Her work has been instrumental in advancing methods for reducing harmful emissions from industrial processes.
Collaborations
Kiyomi collaborates with her coworker, Yoichi Mori, who is also involved in innovative projects related to environmental technology. Their combined expertise enhances the research and development efforts at Ebara Corporation.
Conclusion
Kiyomi Arakawa's contributions to the field of exhaust gas treatment exemplify her commitment to innovation and environmental protection. Her patented method for removing nitrogen oxides represents a significant advancement in reducing industrial emissions.