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For the Inventor, By the Inventor

Okayama, Japan

Motoaki Tanaka

This inventor holds 18 USPTO granted patents, primarily in Pharmaceutical Chemistry. Top assignees: Taiho Pharmaceutical Company Limited, Otsuka Kagaku Kabushiki Kaisha, Maruko Seiyaku Co., Ltd.. Active years: 1980-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Motoaki Tanaka. Retrieved from https://idiyas.com/inventor/motoaki-tanaka

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

USPTO Granted Patents = 18

% Patents Active = 94.4

Average Co-Inventor Count = 4.6

ph-index = 6

Forward Citations = 134(Granted Patents)


Location History:

  • Tokushima, JP (1980 - 1987)
  • Okayama, JP (1989 - 1990)
  • Honjyo, JP (1990)
  • Tokorozawa, JP (1992 - 1999)
  • Chiyoda-ku, JP (2011)

Company Filing History:

goldMedal18 out of 320 
 
Taiho Pharmaceutical Company Limited
 patents
silverMedal4 out of 138 
 
Otsuka Kagaku Kabushiki Kaisha
 patents
bronzeMedal1 out of 8 
 
Maruko Seiyaku Co., Ltd.
 patents
4. 1 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1980-2011

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Areas of Expertise:
Penicillin Derivatives
Glyoxal-2-Oxim
D-Pentofuranose
Isoxazole Derivatives
1-Amino-1,2,3-Triazole
Ethynylcytidine
Penam Derivatives
Methylpenicillin
18 patents (USPTO):Explore Patents
1. 8058261 - 3'-ethynylcytidine derivative (2011-11-15),
2. 5880294 - D-pentofuranose derivatives and process for preparing the same (1999-03-09),
3. 5728841 - Process for preparing 1-amino-1,2,3-triazole (1998-03-17),
4. 5310926 - Process for producing isoxazole derivatives (1994-05-10),
5. 5142091 - .alpha., .beta.-unsaturated ketones and ketoxime derivatives (1992-08-25),
6. 4933444 - Process for preparing 2.beta.-substituted-methylpenicillin derivatives (1990-06-12),
7. 4912213 - Process for preparing penicillanic acid derivatives (1990-03-27),
8. 4898939 - Process for preparing 2.beta.-substituted-methylpenicillin derivatives (1990-02-06),
9. 4895941 - Process for preparing (1990-01-23),
10. 4891369 - 2.beta.-Substituted-methylpenicillanic acid derivatives, and salts and (1990-01-02),
11. 4861768 - 2 .beta.-substituted thiomethylpenicillin derivatives and their (1989-08-29),
12. 4668514 - Penicillin derivatives (1987-05-26),
13. 4626384 - Penam derivatives (1986-12-02),
14. 4562073 - Penicillin derivatives (1985-12-31),
15. 4443607 - 1(2H)-Isoquinolone compounds and acid addition salts thereof (1984-04-17),

Title: The Innovative Journey of Motoaki Tanaka

Introduction

Motoaki Tanaka, a prominent inventor based in Okayama, Japan, has made significant contributions to the field of pharmaceuticals, holding an impressive portfolio of 18 patents. His innovative spirit and dedication to research have led to the development of compounds that exhibit remarkable therapeutic potential in treating various ailments.

Latest Patents

One of Motoaki Tanaka's latest patents is a 3'-ethynylcytidine derivative, aimed at providing a compound that demonstrates excellent anti-tumor activity and outstanding oral absorption, making it a promising candidate for use as an anti-tumor drug. This invention outlines a 3'-ethynylcytidine derivative represented by a specific formula, which includes various substituents such as (substituted) alkylcarbonyl and (substituted) alkoxycarbonyl groups. Another noteworthy patent involves D-pentofuranose derivatives and the process for preparing them, showcasing Tanaka's commitment to advancing pharmaceutical sciences.

Career Highlights

Throughout his career, Motoaki Tanaka has collaborated with leading companies in the pharmaceutical industry, including Taiho Pharmaceutical Company Limited and Otsuka Pharmaceutical Co., Ltd. His work has been critical in the development of new therapeutic agents, demonstrating his substantial impact on medicinal chemistry.

Collaborations

In his professional journey, Tanaka has worked alongside esteemed colleagues such as Hideo Tanaka and Shozo Yamada. These collaborations have fostered an environment of innovation and shared expertise, enabling breakthroughs in drug development and patentable inventions.

Conclusion

Motoaki Tanaka's contributions to the field of pharmaceuticals exemplify the spirit of innovation. With a focus on developing effective anti-cancer therapies and other pharmaceutical derivatives, his work continues to influence the industry, potentially improving patient outcomes and advancing medical science.

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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