Masahiro Takeda

Title: Masahiro Takeda: Innovator in Chemical Production

Introduction

Masahiro Takeda is a notable inventor based in Nishinomiya, Japan. He has made significant contributions to the field of chemical production, holding a total of 4 patents. His work focuses on innovative methods for synthesizing various chemical compounds.

Latest Patents

One of Takeda's latest patents is a method for producing 1-methylpyrrolidin-3-ol. This invention involves a two-step process where compound (II) is reacted with formaldehyde and hydrogen in the presence of a metal catalyst. The method ensures that the amount of formaldehyde used exceeds 1 mol and does not exceed 5 mol per 1 mol of compound (II). The resulting mixture is then treated with hydrogen and a secondary amine, followed by the removal of the metal catalyst and distillation to obtain the desired compound.

Another significant patent is the method of producing purified optically active 4-amino-3-(substituted phenyl)butanoic acid compound. This method is characterized by making a crude optically active compound contact an organic acid in the presence of water, leading to a purified product.

Career Highlights

Throughout his career, Masahiro Takeda has worked with prominent companies such as Sumitomo Chemical Company, Limited and Kaken Pharmaceutical Company, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects in the chemical industry.

Collaborations

Takeda has collaborated with notable coworkers, including Kazuo Murakami and Yohei Tanaka. These partnerships have fostered a creative environment that has led to the development of groundbreaking methods in chemical synthesis.

Conclusion

Masahiro Takeda's contributions to chemical production through his innovative patents highlight his expertise and dedication to the field. His work continues to influence the industry and pave the way for future advancements in chemical synthesis.