Company Filing History:
4 out of 331 
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1 out of 73 
Years Active: 2014-2021
Title: Mayumi Yokoi: Innovator in Chemical Engineering
Introduction
Mayumi Yokoi is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of chemical engineering, particularly in the production of valuable chemical compounds. With a total of 5 patents to her name, her work has had a notable impact on the industry.
Latest Patents
One of her latest patents is a method for producing p-xylene. This innovative process involves several steps, including providing a C4 fraction that contains isobutene, dimerization to create a C8 component, and cyclization to produce p-xylene through a cyclization/dehydrogenation reaction. Another significant patent is a method for producing base oil for lubricant oils. This method includes hydrocracking a stock oil with a high content of heavy matter, fractionating the hydrocracked oil, and isomerization dewaxing to obtain a dewaxed oil.
Career Highlights
Throughout her career, Mayumi Yokoi has worked with notable companies such as JX Nippon Oil & Energy Corporation and Japan Oil, Gas and Metals National Corporation. Her experience in these organizations has allowed her to develop and refine her innovative methods in chemical production.
Collaborations
Mayumi has collaborated with esteemed colleagues, including Kazuaki Hayasaka and Yoshiyuki Nagayasu. These partnerships have contributed to her success and the advancement of her research.
Conclusion
Mayumi Yokoi is a trailblazer in the field of chemical engineering, with a focus on innovative methods for producing essential chemical compounds. Her contributions continue to influence the industry and inspire future generations of inventors.