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For the Inventor, By the Inventor

Kawagoe, Japan

Yoji Tachibana

This inventor holds 5 USPTO granted patents. Top assignees: Nisshin Flour Milling Co., Ltd., Nisshin Chemicals Co., Ltd.. Active years: 1988-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoji Tachibana. Retrieved from https://idiyas.com/inventor/yoji-tachibana

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

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 3

Forward Citations = 31(Granted Patents)


Location History:

  • Saitama, JP (1992)
  • Kawagoe, JP (1988 - 1993)

Company Filing History:

goldMedal5 out of 200 
 
Nisshin Flour Milling Co., Ltd.
 patents
silverMedal1 out of 7 
 
Nisshin Chemicals Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1988-1993

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5 patents (USPTO):Explore Patents
1. 5182396 - 1-hydroxyvitamin D derivatives (1993-01-26),
2. 5157135 - 1.alpha.,25-dihydroxyvitamin D4 compounds, ergosta-5,7-diene compounds (1992-10-20),
3. 5087709 - Process for the preparation of 1.alpha.,25-dihydroxyvitamin D.sub.2 and (1992-02-11),
4. 4758383 - Ergosta-1,5,7,22-tetraen-3.beta.-ol and its use as an intermediate for (1988-07-19),
5. 4723045 - Processes for preparing cholesta-1,5,7-trien-3-ol (1988-02-02),

Title: Inventor Yoji Tachibana: Pioneering Advances in Vitamin D Derivatives

Introduction

Yoji Tachibana, located in Kawagoe, Japan, is an accomplished inventor with a notable portfolio of five patents. His work primarily focuses on innovative compounds that have significant implications in the fields of health and medicine.

Latest Patents

Among Tachibana's latest inventions are groundbreaking patents for 1-hydroxyvitamin D derivatives, which are esters of 1-hydroxyvitamin D with vitamin A acid. These compounds show promise as agents for preventing and treating osteoporosis, cutaneous ulcers, and tumors. He has also developed compounds known as 1.alpha.,25-dihydroxyvitamin D4 and ergosta-5,7-diene compounds. These compounds are potential intermediates in synthesizing 1.alpha.,25-dihydroxyvitamin D4 and are expected to exhibit interesting pharmacological activity alongside active-type vitamins D3 and D2.

Career Highlights

Throughout his career, Tachibana has worked with reputable companies, notably Nisshin Flour Milling Co., Ltd. and Nisshin Chemicals Co., Ltd. This experience has greatly contributed to his expertise in the field and his development of innovative health-related products.

Collaborations

Yoji Tachibana has collaborated with notable individuals in the industry, including Masahiro Tsuji and Shinji Yokoyama. These collaborations have facilitated the exchange of ideas and have been instrumental in advancing his research and patent developments.

Conclusion

Yoji Tachibana stands out as a significant figure in the realm of vitamin D research and development. His patents not only highlight his ingenuity as an inventor but also reflect his dedication to improving health outcomes through innovative 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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