Masato Tanabe

This inventor holds 27 USPTO granted patents and 2 published patent applications, plus 1 CIPO patent and 1 EPO patent, primarily in Steroid Chemistry. Top assignees: Sri International, Japan Tobacco Inc., Stanford Research Institute. Active years: 1976-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masato Tanabe. Retrieved from https://idiyas.com/inventor/masato-tanabe-j9rvxlw8

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

Calculating rank

USPTO Granted Patents = 27 (Patent Applications = 2)

% Patents Active = 100.0

CIPO Patents = 1

EPO Patents = 1 (Patent Applications = 1)

Average Co-Inventor Count = 3.7

ph-index = 9

Forward Citations = 327(Granted Patents)

Company Filing History:

Stanford Research Institute

patents

4. 1 out of 834,601

Other

patents

Years Active: 1976-2010

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Areas of Expertise:

Anti-Estrogenic Steroids

Pharmaceutical Compositions

Contraceptive Methods

Estrone Sulfatase Inhibitors

Antiandrogenic Agents

Steroidal Anti-Inflammatory

15,16-Seco-19-Nor Progestins

NMDA Receptor Derivatives

Steroid Synthesis

Topically Active Agents

Diene Functionality

Estrane Derivatives

27 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7772218 - Synthesis of anti-estrogenic and other therapeutic steroids from 21-hydroxy-19-norpregna-4-en-3-one (2010-08-10),

2. 6784170 - Synthesis of anti-estrogenic and other therapeutic steroids from 21-hydroxy-19-norpregna-4-en-3-one (2004-08-31),

3. 6747018 - Anti-estrogenic steroids, and associated pharmaceutical compositions and methods of use (2004-06-08),

4. 6548491 - Anti-estrogenic steroids, and associated pharmaceutical compositions and methods of use (2003-04-15),

5. 6503896 - Anti-estrogenic steroids, and associated pharmaceutical compositions and methods of use (2003-01-07),

6. 6455517 - Anti-estrogenic steroids, and associated pharmaceutical compositions and methods of use (2002-09-24),

7. 6281205 - Anti-estrogenic steroids, and associated pharmaceutical compositions and methods of use (2001-08-28),

8. 6083940 - Method and composition for effecting contraception in a mammalian male (2000-07-04),

9. 6054446 - Anti-estrogenic steroids, and associated pharmaceutical compositions and (2000-04-25),

10. 6046186 - Estrone sulfamate inhibitors of estrone sulfatase, and associated (2000-04-04),

11. 5861388 - Steroid inhibitors of estrone sulfatase and associated pharmaceutical (1999-01-19),

12. 5854230 - Antiandrogenic agents and related pharmaceutical compositions and (1998-12-29),

13. 5763432 - Steriod inhibitors of estrone sulfatase and associated pharmaceutical (1998-06-09),

14. 5723455 - Antiandrogenic agents and related pharmaceutical compositions and (1998-03-03),

15. 5688780 - Antihypercholesterolemic compounds and related pharmaceutical (1997-11-18),

Title: The Innovative Contributions of Masato Tanabe in Therapeutic Steroid Synthesis

Introduction

Masato Tanabe, based in Palo Alto, California, is a prolific inventor with a remarkable portfolio of 27 patents. His work primarily revolves around the synthesis of therapeutic steroids, showcasing significant potential in the medical field, particularly in the treatment of prostate disorders.

Latest Patents

Among his notable contributions are his latest patents focused on the synthesis of anti-estrogenic and other therapeutic steroids derived from 21-hydroxy-19-norpregna-4-en-3-one. Specifically, he has developed processes for synthesizing steroids such as 3-hydroxy-7α-methyl-21-[2'-methoxy-4′-(diethylaminomethyl)-phenoxy]-19-norpregna-1,3,5(10)triene citrate, also known as "SR 16234". These advancements highlight the utility of 21-hydroxy-19-norpregna-4-en-3-one in providing valuable intermediates that could serve as therapeutic agents in managing conditions like prostatic cancer.

Career Highlights

Tanabe has held significant positions at renowned organizations, including SRI International and Japan Tobacco Inc. His tenure at these companies has allowed him to leverage his expertise in steroid synthesis, advancing both his career and the field of pharmaceuticals.

Collaborations

Throughout his professional journey, Tanabe has collaborated with other talented scientists, such as Richard H. Peters and Wan-Ru Chao. These partnerships have contributed to the successful development of innovative compounds and methodologies within the field.

Conclusion

Masato Tanabe's impressive array of patents and his collaborative efforts underscore his vital role in the innovation of therapeutic steroid synthesis. His work not only enhances scientific understanding but also holds promise for improving treatment options in oncology and other medical areas.

Profile summary based on public USPTO records.