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For the Inventor, By the Inventor

Chiba, Japan

Hirohiko Yamauchi

This inventor holds 10 USPTO granted patents, plus 1 CIPO patent. Top assignees: Nihon Medi-Physics Company, Limited, Toyo Hakka Kogyo Co., Ltd.. Active years: 1989-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirohiko Yamauchi. Retrieved from https://idiyas.com/inventor/hirohiko-yamauchi

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

USPTO Granted Patents = 10

% Patents Active = 100.0


Average Co-Inventor Count = 4.7

ph-index = 6

Forward Citations = 95(Granted Patents)


Location History:

  • Osaka, JP (1989 - 1992)
  • Ichihara, JP (1992)
  • Chiba, JP (1989 - 1997)

Company Filing History:

goldMedal10 out of 142 
 
Nihon Medi-Physics Company, Limited
 patents
silverMedal2 out of 2 
 
Toyo Hakka Kogyo Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1989-1997

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10 patents (USPTO):Explore Patents
1. 5667762 - Method for preventing adhesion of thallium 201 to container (1997-09-16),
2. 5274082 - Paramagnetic complexes of chelating compounds (1993-12-28),
3. 5196576 - Chelating compounds and their use (1993-03-23),
4. 5138039 - Chelating compounds and their use (1992-08-11),
5. 5096693 - Stable stannous chloride composition for labeling with radioactive (1992-03-17),
6. 5071636 - Chelating compounds and their use (1991-12-10),
7. 5015462 - Stable stannous chloride composition for labeling with radioactive (1991-05-14),
8. 4996312 - Porphyrin derivatives, and their production and use (1991-02-26),
9. 4880616 - Stable stannous chloride composition for labeling with radioactive (1989-11-14),
10. 4849207 - Porphyrin derivatives (1989-07-18),

Title: Hirohiko Yamauchi: Innovator in Radioactive Diagnostic Agents

Introduction

Hirohiko Yamauchi is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of radioactive diagnostic agents, holding a total of 10 patents. His work has advanced the understanding and application of thallium in medical diagnostics.

Latest Patents

One of his latest patents is a method for preventing the adhesion of thallium 201 to containers. This invention discloses an agent that comprises a reducing substance as an active ingredient, which effectively prevents the adhesion of thallium 201 to a container. Additionally, he has developed a radioactive diagnostic agent that incorporates thallium 201 and a reducing substance to enhance its efficacy. Another significant patent involves paramagnetic complexes of chelating compounds, which are crucial for various applications in medical diagnostics.

Career Highlights

Throughout his career, Hirohiko Yamauchi has worked with prominent companies such as Nihon Medi-Physics Company, Limited and Toyo Hakka Kogyo Co., Ltd. His experience in these organizations has allowed him to refine his expertise and contribute to innovative solutions in the field.

Collaborations

Hirohiko has collaborated with esteemed colleagues, including Makoto Azuma and Nobuo Ueda. These partnerships have fostered a collaborative environment that has led to groundbreaking advancements in their respective fields.

Conclusion

Hirohiko Yamauchi's contributions to the field of radioactive diagnostic agents are invaluable. His innovative patents and collaborations have significantly impacted medical diagnostics, showcasing his dedication to advancing technology in healthcare.

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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