Takagi

Title: Takagi: Pharmaceutical Inventor in Tokyo

Introduction

Takagi is an inventor based in Tokyo, Japan, associated with Sankyo Company, Limited. His patent work concerns pyrido[1,2-a]pyrimidinone derivatives developed for potential pharmaceutical use.

Latest Patents

The available information lists 1 patent for Takagi: “Pyrido[1,2-a]pyrimidinone derivatives.” The patent describes 3-[2-(4-phenyl-1-piperazinyl)ethyl]-4H-pyrido[1,2-a]pyrimidin-4-one derivatives with central nervous system depressant and hypotensive activities, proposed for use as major tranquillizers. The compounds may be prepared by reacting a substituted pyridopyrimidinone derivative with a 1-phenylpiperazine derivative, or by reacting an aminopyridine with a specified acetoacetic acid ester.

Career Highlights

Takagi’s documented patent activity reflects work on medicinal chemistry and the preparation of compounds with potential effects on the central nervous system and blood pressure. The available information identifies Sankyo Company, Limited as his company.

Collaborations

Hiroshi Fujita and Yasunobu Sato are listed as Takagi’s coworkers. The available information does not specify their roles in the patent or the extent of their collaboration.

Conclusion

Takagi’s recorded invention focuses on pyridopyrimidinone derivatives with potential pharmaceutical applications, representing his documented contribution to innovation at Sankyo Company, Limited.