Sanda, Japan

Hisashi Yamada

This inventor holds 5 USPTO granted patents. Top assignees: Fujisawa Pharmaceutical Company, Ltd., Astellas Pharma Gmbh. Active years: 1982-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisashi Yamada. Retrieved from https://idiyas.com/inventor/hisashi-yamada-me55a3hc

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

Calculating rank

% Patents Active = 80.0

Average Co-Inventor Count = 5.1

ph-index = 2

Forward Citations = 40(Granted Patents)


Location History:

  • Ikeda, JP (1982 - 1983)
  • Kawanishi, JP (2002)
  • Sanda, JP (2002 - 2006)

Company Filing History:


Years Active: 1982-2006

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5 patents (USPTO):Explore Patents

Title: The Innovative Journey of Inventor Hisashi Yamada

Introduction

Hisashi Yamada, an accomplished inventor based in Sanda, Japan, has made significant contributions to the field of medical biotechnology with his innovative inventions. Holding a total of five patents, his work primarily focuses on hematopoietic stem cell proliferation, offering promising advancements in cancer treatment and gene therapy.

Latest Patents

Hisashi Yamada's most recent patent involves hematopoietic stem cell proliferating agents. This invention describes a hematopoietic stem cell proliferating agent that comprises insulin-like growth factor 1 (IGF-I) and at least one protein selected from stem cell factor (SCF), macrophage colony-stimulating factor (M-CSF), and granulocyte colony-stimulating factor (G-CSF). The method includes cultivating hematopoietic stem cells in a medium containing these components, which encourages the proliferation of hematopoietic stem cells in their undifferentiated state, both in vivo and in vitro. This innovation holds great potential for ameliorating cytopenia induced by chemotherapeutic treatments, preventing infectious diseases linked to lymphopenia, and facilitating the multiplication of hematopoietic stem cells.

Career Highlights

Throughout his career, Hisashi Yamada has been associated with prestigious organizations, including Fujisawa Pharmaceutical Company, Ltd. and Astellas Pharma GmbH. His experience in these companies has significantly enriched his expertise in biotechnology and pharmaceutical development, allowing him to create impactful inventions that address critical healthcare challenges.

Collaborations

Yamada has collaborated with numerous professionals in his field, including notable colleagues Masakazu Kobayashi and Yoshimasa Saito. These collaborations have enhanced the scope of his research and development projects, contributing to his success as an inventor.

Conclusion

Hisashi Yamada continues to be a driving force in the realm of stem cell research and biotechnology. His innovative patents and collaborative efforts mark him as a leading inventor, dedicated to advancing medical science and contributing to the improved treatment options available for patients worldwide.

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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