Fujieda, Japan

Hisahiro Ishiwari

This inventor holds 2 USPTO granted patents. Top assignees: Mitsui Chemicals, Inc., Mitsui Toatsu Chemicals, Incorporated, Mochida Pharmaceutical Co., Ltd.. Active years: 2000-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisahiro Ishiwari. Retrieved from https://idiyas.com/inventor/hisahiro-ishiwari

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 6.5

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2000-2001

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2 patents (USPTO):Explore Patents

Title: Hisahiro Ishiwari: Innovator in Pharmaceutical Solutions

Introduction

Hisahiro Ishiwari is a notable inventor based in Fujieda, Japan. He has made significant contributions to the field of pharmaceutical formulations, particularly in the development of aqueous solutions containing proteins. His innovative work has led to the filing of multiple patents that enhance the solubility and stability of important therapeutic proteins.

Latest Patents

Hisahiro Ishiwari holds 2 patents that focus on improving the solubility of tissue plasminogen activator (t-PA). One of his latest patents describes an aqueous solution of t-PA, which involves dissolving a protein at a high concentration near its isoelectric point by adding an anionic polymer or a salt thereof. This technique is crucial for preparing pharmaceutical formulations that utilize physiologically active proteins. Another patent outlines a method for enhancing the solubility of t-PA through a thrombolytic composition that combines t-PA with an anionic polymer, an amine compound, and potentially an acid. This composition can be formulated as an aqueous solution or a lyophilized preparation, ensuring stability in various pharmaceutical solutions.

Career Highlights

Throughout his career, Hisahiro Ishiwari has worked with prominent companies such as Mitsui Chemicals, Inc. and Mitsui Toatsu Chemicals, Incorporated. His experience in these organizations has allowed him to refine his expertise in pharmaceutical innovations and contribute to the development of effective medical solutions.

Collaborations

Hisahiro has collaborated with notable colleagues, including Yukio Shimazaki and Ryo Tanaka. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in their respective fields.

Conclusion

Hisahiro Ishiwari's contributions to pharmaceutical formulations and his innovative patents demonstrate his commitment to advancing medical science. His work continues to impact the development of effective therapeutic solutions for various medical applications.

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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