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For the Inventor, By the Inventor

Namekawa, Japan

Yoshiko Yamamoto

This inventor holds 4 USPTO granted patents. Top assignee: Toyama Chemical Co., Ltd.. Active years: 1984-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiko Yamamoto. Retrieved from https://idiyas.com/inventor/yoshiko-yamamoto

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

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 11.0

ph-index = 2

Forward Citations = 11(Granted Patents)


Location History:

  • Namekawa, JP (1984 - 1986)
  • Namerikawa, JP (1985 - 1988)

Company Filing History:

goldMedal4 out of 159 
 
Toyama Chemical Co., Ltd.
 patents

Years Active: 1984-1988

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4 patents (USPTO):Explore Patents
1. 4744985 - Novel substances having carcinostatic and immunostimulating activity, (1988-05-17),
2. 4591558 - Novel substances having antitumor and immunostimulating activity, (1986-05-27),
3. 4547462 - Process for preparing substance having carcinostatic and (1985-10-15),
4. 4477437 - Substances having carcinostatic and immunostimulating activity (1984-10-16),

Title: The Innovative Contributions of Yoshiko Yamamoto

Introduction

Yoshiko Yamamoto is a prominent inventor based in Namekawa, Japan. She has made significant contributions to the field of cancer treatment through her innovative research and development of novel substances. With a total of 4 patents, her work focuses on harnessing the potential of bacteria to create effective therapeutic agents.

Latest Patents

Yamamoto's latest patents include groundbreaking discoveries related to substances that exhibit carcinostatic and immunostimulating activity. One of her notable inventions involves novel substances obtained from a culture or its supernatant fluid prepared by culturing bacteria belonging to the Fusobacterium genus. These substances are particularly useful for treating cancerous diseases in lower warm-blooded animals. Additionally, she has developed novel TF-2 substances that possess antitumor and immunostimulating activity, which are beneficial for treating cancerous diseases in mammals, including humans. This work not only highlights her innovative approach but also emphasizes the potential impact of her discoveries on cancer treatment.

Career Highlights

Yamamoto is currently associated with Toyama Chemical Co., Ltd., where she continues to advance her research. Her dedication to innovation in the pharmaceutical field has positioned her as a key figure in the development of new therapeutic agents.

Collaborations

Throughout her career, Yamamoto has collaborated with esteemed colleagues such as Kenzo Tamai and Isamu Saikawa. These partnerships have further enriched her research and contributed to the success of her inventions.

Conclusion

Yoshiko Yamamoto's contributions to the field of cancer treatment through her innovative patents demonstrate her commitment to advancing medical science. Her work not only showcases her expertise but also holds promise for improving therapeutic options for cancer patients.

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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