Tadashi Shirasaka

This inventor holds 11 USPTO granted patents. Top assignees: Mitsubishi Chemical Industries Limited, Mitsubishi Kasei Corporation. Active years: 1978-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadashi Shirasaka. Retrieved from https://idiyas.com/inventor/tadashi-shirasaka

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 4.9

ph-index = 3

Forward Citations = 33(Granted Patents)

Location History:

Yokohama, JP (1979)
Kawasaki, JP (1978 - 1980)
Machida, JP (1988 - 1995)

Company Filing History:

7 out of 614

Mitsubishi Chemical Industries Limited

patents

4 out of 499

Mitsubishi Kasei Corporation

patents

Years Active: 1978-1995

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5442060 - Carboxamide derivatives (1995-08-15),

2. 5153217 - Pyrrolealdehyde derivative (1992-10-06),

3. 5082856 - Pyrrolecarboxylic acid derivatives (1992-01-21),

4. 4963684 - Process for preparing cotarnine (1990-10-16),

5. 4769480 - Benzylamine derivative (1988-09-06),

6. 4760145 - Certain 6,7-methylene dioxydihydro or tetrahydro-isoquinoline derivatives (1988-07-26),

7. 4746747 - Anisole derivatives (1988-05-24),

8. 4220587 - Amino acid derivatives of 6-(2-amino-2-arylacetamido)penicillanic acids (1980-09-02),

9. 4179437 - Amino acid derivatives of 6-(2-amino-2-arylacetamido) penicillanic acids (1979-12-18),

10. 4164577 - 6-(2-Acylamino-2-arylacetamido)penicillanic acids (1979-08-14),

11. 4111932 - Amino acid derivatives of 6-(2-amino-2-arylacetamido)penicillanic acids (1978-09-05),

Title: The Innovative Contributions of Tadashi Shirasaka

Introduction

Tadashi Shirasaka is a prominent inventor based in Machida, Japan. He has made significant contributions to the field of pharmaceuticals, particularly through his innovative patents. With a total of 11 patents to his name, Shirasaka has developed compounds that are highly effective in treating various health conditions.

Latest Patents

Among his latest patents are carboxamide derivatives and a novel pyrrolealdehyde derivative. The carboxamide derivatives are characterized by a general formula that includes C1-C3 alkyl groups, which have shown potential in pharmaceutical applications. The pyrrolealdehyde derivative is represented by a specific formula that includes a C10-C16 alkyl group, which can be substituted with various functional groups. These compounds are particularly noted for their effectiveness in reducing triglyceride and cholesterol levels in serum, making them valuable for treating hyperlipemia and arteriosclerosis.

Career Highlights

Shirasaka has worked with notable companies such as Mitsubishi Chemical Industries Limited and Mitsubishi Kasei Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking research in the pharmaceutical industry.

Collaborations

Throughout his career, Shirasaka has collaborated with esteemed colleagues, including Yoshiharu Morita and Junichi Ohya. These partnerships have fostered a collaborative environment that has led to innovative discoveries and advancements in their respective fields.

Conclusion

Tadashi Shirasaka's contributions to the field of pharmaceuticals through his patents and collaborations highlight his role as a significant inventor. His work continues to impact the industry positively, showcasing the importance of innovation in healthcare.

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]