Company Filing History:
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1 out of 167 
Years Active: 1991
Title: **Innovator Profile: Nobuhiro Takei**
Introduction
Nobuhiro Takei is a noted inventor based in Yokohama, Japan. He is recognized for his contributions to the field of chemistry, specifically through his innovative processes in the preparation of naphthalene carboxylic acids. With a keen understanding of chemical reactions and catalysts, Takei has enhanced the efficiency of producing valuable chemical compounds.
Latest Patents
Takei holds a significant patent titled "Process for the Preparation of Naphthalene Carboxylic Acids." This patent discloses a method for preparing naphthalene mono or polycarboxylic acids, including 2,6-naphthalene dicarboxylic acid. The process involves oxidizing a naphthalene compound, such as 2,6-diisopropylnaphthalene, in a specific solvent with molecular oxygen, utilizing a catalyst comprising a heavy metal compound and a bromine compound. The solvent is characterized as an aliphatic monocarboxylic acid, which may also contain benzene and/or water. By regulating the catalyst metal's ratio to the raw material naphthalene compound, Takei's method enables the control of the desired product's yield.
Career Highlights
Throughout his career, Nobuhiro Takei has worked with prominent companies, including NKK Corporation and Chiyoda Corporation. His experiences in these organizations have allowed him to collaborate with other experts in the industry, further enhancing his skills and knowledge in chemical engineering and innovations.
Collaborations
Takei's work has been enriched by collaborations with notable colleagues such as Yakudo Tachibana and Kazuhiko Tate. Teaming up with other professionals in the field has enabled him to push the boundaries of research and development in chemical processes, sharing insights and expertise to create more effective solutions.
Conclusion
Nobuhiro Takei exemplifies the spirit of innovation within the chemical industry. His patented processes for naphthalene carboxylic acids not only showcase his inventiveness but also contribute to advancements in chemical production techniques. Through his collaborations and career experiences, Takei continues to inspire future advancements in the field.