Funabashi, Japan

Shigeshi Toyoshima

This inventor holds 14 USPTO granted patents, primarily in Pharmaceutical Chemistry. Top assignees: Shin-Etsu Chemical Co., Ltd., Ajinomoto Co., Ltd., Sanwa Kagaku Kenkyusho Co., Ltd.. Active years: 1978-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeshi Toyoshima. Retrieved from https://idiyas.com/inventor/shigeshi-toyoshima

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.8

ph-index = 4

Forward Citations = 88(Granted Patents)


Location History:

  • Tokyo, JA (1978)
  • Tama, JP (1987)
  • Tokyo, JP (1979 - 1988)
  • Funabashi, JP (1981 - 1989)

Company Filing History:


Years Active: 1978-1989

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Areas of Expertise:
Hypoglycemic Agent
Organosilicon Compounds
Pharmaceutical Composition
Antitumor Agents
Amino Acid Surfactant
Leukemia Virus
Absorption Property
Medicaments
Antimicrobial Carpet
Novel Compounds
Germyl Propionic Acid
Phosphites
14 patents (USPTO):Explore Patents

Title: The Innovative Mind of Shigeshi Toyoshima

Introduction: Shigeshi Toyoshima is a prominent inventor based in Funabashi, Japan, known for his contributions to the fields of pharmacology and organo-silicon chemistry. With a total of 14 patents to his name, Toyoshima has dedicated his career to developing innovative compounds that have significant therapeutic implications.

Latest Patents: Among Shigeshi Toyoshima's latest patents is a hypoglycemic agent that consists of a compound derived from D-phenylalanine, specifically designed for hypoglycemic use. This compound is represented by a complex general formula that includes various structures for R^1, R^2, and R^3, indicating a range of possible functional groups. In addition, Toyoshima has developed novel organo-silicon compounds, defined by a specific formula, which includes various alkyl and phenyl groups and applications as an anti-tumor agent. These innovations reflect his commitment to advancing medicinal chemistry through novel compounds with beneficial effects on health.

Career Highlights: Shigeshi Toyoshima's career includes significant roles in renowned companies such as Shin-Etsu Chemical Co., Ltd. and Ajinomoto Co., Ltd., where he honed his skills in research and development. His inventive work within these organizations has led to valuable contributions in chemical manufacturing and drug development, reinforcing his reputation as a leading figure in his field.

Collaborations: Throughout his career, Toyoshima has collaborated with distinguished colleagues such as Ryuichi Sato and Koichi Ito. These partnerships have facilitated a dynamic exchange of ideas and expertise, enhancing the caliber of innovations produced by Toyoshima and his team.

Conclusion: Shigeshi Toyoshima's dedication to innovation exemplifies the impact that inventors can have on scientific progress and public health. With a growing portfolio of patents and a solid foundation in both collaboration and career accomplishments, Toyoshima continues to shape the landscape of medicinal chemistry. His work not only emphasizes the importance of innovation but also inspires future generations of inventors to pursue their passions in the world of science and technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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