Yasuhiro Yamashita

This inventor holds 19 USPTO granted patents and 3 published patent applications and 7 EPO patents, primarily in Drug Delivery Systems. Top assignees: Japan Science and Technology Agency, Quarrymen&co. Inc., Saitama University. Active years: 1982-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuhiro Yamashita. Retrieved from https://idiyas.com/inventor/yasuhiro-yamashita

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

USPTO Granted Patents = 19 (Patent Applications = 3)

% Patents Active = 73.7

EPO Patents = 7 (Patent Applications = 6)

Average Co-Inventor Count = 2.7

ph-index = 6

Forward Citations = 138(Granted Patents)

Location History:

Togoshi, JP (1982)
Tokyo, JP (1987 - 2022)

Company Filing History:

6 out of 1,328

Japan Science and Technology Agency

Chugai Seiyaku Kabushiki Kaisha

patents

6. 1 out of 5,300

Nippon Telegraph and Telephone Corporation

patents

where one patent can have more than one assignee

Years Active: 1982-2022

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Areas of Expertise:

Drug Delivery

Carbosilane Dendrimer

Stem Cells

Hair Growth

Asymmetric Reaction Catalyst

Anti-Allergic Agents

Nitrogenous Compounds

Optically Active Compounds

19 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11510987 - Endocytosis enhancer for drug delivery system (2022-11-29),

2. 11160877 - Capsule for drug delivery systems of targeted tissue-specific delivery type using carbosilane dendrimer (2021-11-02),

3. 11015171 - Immortalized stem cells and method for producing same (2021-05-25),

4. 10918726 - Carbosilane dendrimer and aggregatable carrier obtained using said dendrimer for drug delivery system (2021-02-16),

5. 10772973 - Targeted shell for use in drug delivery system utilizing carbosilane dendrimer (2020-09-15),

6. 10668261 - Sheet-like piece, sheet for promoting hair growth comprising sheet-like piece, and whitening and wrinkle ameliorating agent comprising sheet-like piece (2020-06-02),

7. D880624 - Spinning top toy (2020-04-07),

8. D846034 - Spinning top toy (2019-04-16),

9. D844069 - Spinning top toy (2019-03-26),

10. D835209 - Spinning top toy (2018-12-04),

11. 8987495 - Diamino acid derivative starting material, manufacturing method thereof, and diamino acid derivative manufacturing method (2015-03-24),

12. 8563765 - Diamino acid derivative starting material, manufacturing method thereof, and diamino acid derivative manufacturing method (2013-10-22),

13. 7910762 - Asymmetric reaction catalyst and method for preparing optically active compound using the same (2011-03-22),

14. 7705161 - Process for producing nitrogenous 5-membered cyclic compound (2010-04-27),

15. 7667078 - Asymmetric reaction catalyst and method for preparing optically active compound using the same (2010-02-23),

Title: Yasuhiro Yamashita: Innovator in Drug Delivery Systems

Introduction

Yasuhiro Yamashita, based in Tokyo, Japan, is a distinguished inventor recognized for his significant contributions in the field of drug delivery systems. With a remarkable portfolio of 19 patents, he has been instrumental in advancing innovative solutions that enhance the efficacy of therapeutic applications.

Latest Patents

Among his latest innovations is the patent for an "Endocytosis enhancer for drug delivery system." This invention addresses the challenge of enhancing cellular uptake of drugs encapsulated in micelles formed from fluorescent-protein-supported carbosilane dendrimers. The endocytosis enhancer comprises associates formed from a fluorescent protein, selected from a range including white, red, yellow, blue, and green fluorescent proteins. This enhancement is pivotal for improving the drug delivery process through endocytosis.

Another significant patent by Yamashita is for a "Capsule for drug delivery systems of targeted tissue-specific delivery type using carbosilane dendrimer." This invention focuses on developing a targeting-type capsule which utilizes the reactivity of a thiol with an alkyl halide, incorporating a silole-containing carbosilane dendrimer and a labeling protein. It allows for selective delivery of biological polymers or similar molecules into target cells, optimizing treatment precision.

Career Highlights

Yamashita has worked with prominent organizations such as the Japan Science and Technology Agency and Quarrymen & Co. Inc. His career is marked by a commitment to research and development, particularly in areas that intertwine biotechnology and material science.

Collaborations

Throughout his career, Yamashita has collaborated with esteemed colleagues, including Shu Kobayashi and Miho Suzuki. These partnerships have fostered innovative thinking and broadened the impact of his patents in the scientific community.

Conclusion

Yasuhiro Yamashita exemplifies the spirit of innovation, with his groundbreaking patents addressing pressing challenges in drug delivery systems. His work not only reflects his ingenuity as an inventor but also contributes significantly to the advancement of medical technologies that promise to improve patient outcomes.

Profile summary based on public USPTO records.