Company Filing History:
10 out of 1,379 
2 out of 1,788 Years Active: 1980-2012
Title: Makoto Kotani: Innovator in Olefin Production
Introduction
Makoto Kotani is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of olefin production, holding a total of 12 patents. His innovative approaches have advanced the efficiency and stability of olefin production processes.
Latest Patents
One of his latest patents is an olefin production process that enables the stable and efficient production of olefins through a metathesis reaction. This process effectively prevents the reduction of metathesis catalyst activity caused by trace impurities, such as heteroatom-containing compounds, present in the starting olefin. The method involves supplying a starting olefin with specific impurity limits to a reactor containing both a metathesis catalyst and an isomerization catalyst. The catalysts include metal elements like tungsten, molybdenum, and rhenium, ensuring optimal reaction conditions.
Another notable patent focuses on a process for producing olefins by passing an olefin gas through a catalyst bed in the presence of hydrogen gas. This innovative approach enhances the durability of the metathesis catalytic activity while minimizing the by-production of paraffins. The catalyst bed comprises metals such as tungsten, molybdenum, and rhenium, along with a co-catalyst that includes basic compounds from various groups of the periodic table.
Career Highlights
Throughout his career, Makoto Kotani has worked with leading companies in the chemical industry, including Mitsui Toatsu Chemicals, Incorporated and Mitsui Chemicals, Inc. His expertise in olefin production has positioned him as a key figure in the development of advanced chemical processes.
Collaborations
He has collaborated with notable professionals in the field, including Akihide Kudoh and Motoo Kawamata. These partnerships have contributed to the successful development of innovative technologies in olefin production.
Conclusion
Makoto Kotani's contributions to the field of olefin production through his patents and collaborations highlight his role as a leading inventor. His work continues to influence advancements in chemical processes, showcasing the importance of innovation in the industry.