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For the Inventor, By the Inventor

Kawanishi, Japan

Shigetoshi Tsubotani

This inventor holds 8 USPTO granted patents. Top assignee: Takeda Chemical Industries, Inc.. Active years: 1985-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigetoshi Tsubotani. Retrieved from https://idiyas.com/inventor/shigetoshi-tsubotani

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

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 4

Forward Citations = 26(Granted Patents)


Location History:

  • Suita, JP (1985 - 1988)
  • Hyogo, JP (1990)
  • Kawanishi, JP (1994 - 1996)
  • Ibaraki, JP (1997)
  • Osaka, JP (2002)

Company Filing History:

goldMedal8 out of 1,858 
 
Takeda Chemical Industries, Inc.
 patents

Years Active: 1985-2002

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8 patents (USPTO):Explore Patents
1. 6423869 - Polyol-amino acid compounds having anti-helicobacter pylori activity (2002-07-23),
2. 5679708 - Epoxysuccinic acid derivatives, their production and use (1997-10-21),
3. 5668128 - Aziridine derivatives, their production and use (1997-09-16),
4. 5556853 - Epoxysuccinic acid derivatives (1996-09-17),
5. 5310741 - TAN-1251 compounds and their production from penicillium thomii (1994-05-10),
6. 4895864 - Antibiotic TAN-950A, its production and use (1990-01-23),
7. 4723004 - Cephem compounds (1988-02-02),
8. 4497742 - Isomerization of .beta.-lactam compounds (1985-02-05),

Title: Shigetoshi Tsubotani: Innovator in Pharmaceutical Chemistry

Introduction

Shigetoshi Tsubotani is a prominent inventor based in Kawanishi, Japan. He has made significant contributions to the field of pharmaceutical chemistry, particularly in the development of compounds with therapeutic applications. With a total of 8 patents to his name, Tsubotani's work has had a notable impact on medical science.

Latest Patents

Among his latest patents are innovative discoveries such as polyol-amino acid compounds that exhibit anti-helicobacter pylori activity. Additionally, he has developed epoxysuccinic acid derivatives, which have potential applications in various industries. These patents reflect his commitment to advancing pharmaceutical research and improving health outcomes.

Career Highlights

Tsubotani is currently employed at Takeda Chemical Industries, Inc., a leading global pharmaceutical company. His role at Takeda has allowed him to collaborate with other experts in the field and contribute to groundbreaking research initiatives. His work is characterized by a focus on creating effective solutions for complex health issues.

Collaborations

Throughout his career, Tsubotani has worked alongside notable colleagues, including Setsuo Harada and Masayuki Takizawa. These collaborations have fostered a dynamic environment for innovation and have led to the successful development of various pharmaceutical products.

Conclusion

Shigetoshi Tsubotani's contributions to pharmaceutical chemistry are significant and impactful. His innovative patents and collaborations highlight his dedication to advancing medical science. Tsubotani continues to be a key figure in the field, driving forward the boundaries of pharmaceutical research.

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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