Location History:
- Kashiwa, JP (1983)
- Chiba, JP (1993)
- Chiba Prefecture, JP (1999)
Company Filing History:
Years Active: 1983-1999
Title: Ryoichi Machida: Innovator in Drug Delivery Systems
Introduction
Ryoichi Machida is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of drug delivery systems, particularly through his innovative approaches to producing drug-containing microspheres. With a total of 3 patents to his name, Machida's work has the potential to enhance the efficacy of pharmaceutical preparations.
Latest Patents
One of Machida's latest patents is focused on a process for producing drug-containing microspheres by oil-in-water. This innovative method involves forming a drug into microspheres using a mixed solvent that includes both water-insoluble and water-miscible solvents. The process incorporates fatty acids or their salts, along with glycerin fatty acid esters and propylene glycol fatty acid esters, to create an oil phase that is emulsified with an aqueous phase. The resulting oil-in-water emulsion undergoes solvent evaporation, leading to the production of microspheres that contain the drug at a high concentration and allow for a slow release after administration.
Another significant patent involves injectable preparations containing a cephalosporin medicament. This preparation includes a specific cephalosporin derivative, along with other components such as lactose, citric acid, and arginine. The formulation aims to provide an effective delivery method for cephalosporin antibiotics, enhancing their therapeutic potential.
Career Highlights
Ryoichi Machida is currently associated with Eisai Company, Limited, where he continues to innovate in the pharmaceutical field. His work is characterized by a commitment to improving drug delivery mechanisms, which is crucial for patient care and treatment outcomes.
Collaborations
Machida has collaborated with esteemed colleagues such as Sumio Watanabe and Kazuo Taki. These partnerships have likely contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Ryoichi Machida's contributions to drug delivery systems through his innovative patents demonstrate his expertise and commitment to improving healthcare solutions. His work continues to influence the pharmaceutical industry, paving the way for more effective treatments.