Shunichi Doi

Title: Shunichi Doi: Innovator in Chemical Processes

Introduction

Shunichi Doi is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of chemical processes, holding a total of five patents. His work focuses on innovative methods for producing various chemical compounds.

Latest Patents

One of his latest patents is a process for producing N-substituted maleimides. This process involves heating maleic anhydride and an aromatic or aliphatic amine, or maleic acid monoamides obtained from them, in the presence of an ion exchange resin in an organic solvent to effect cyclodehydration. Another notable patent is for producing carboxylic acid esters from nitriles. This process utilizes water and an alcohol in the vapor phase, where the vapor is brought into contact with a titanium-containing oxide catalyst, which is obtained by hydrolyzing or neutralizing a water-soluble titanium salt and subsequently calcining the resulting precipitate.

Career Highlights

Shunichi Doi has worked with several reputable companies, including Nitto Chemical Industry Co., Ltd. and Mitsubishi Rayon Company, Limited. His experience in these organizations has contributed to his expertise in chemical processes and innovation.

Collaborations

Some of his notable coworkers include Tomio Nakamura and Masatake Kamogawa. Their collaboration has likely fostered a creative environment that encourages innovation in their respective fields.

Conclusion

Shunichi Doi's contributions to chemical processes through his patents and collaborations highlight his role as an influential inventor in the industry. His innovative approaches continue to impact the field positively.