Funabashi, Japan

Shiro Kawahara

This inventor holds 3 USPTO granted patents, plus 1 CIPO patent and 1 EPO patent. Top assignee: Nissan Chemical Industries Limited. Active years: 2003-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shiro Kawahara. Retrieved from https://idiyas.com/inventor/shiro-kawahara

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


% Patents Active = 33.3


 

Average Co-Inventor Count = 2.8

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 2003-2016

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3 patents (USPTO):Explore Patents

Title: Shiro Kawahara: Innovator in Pharmaceutical Chemistry

Introduction

Shiro Kawahara is a notable inventor based in Funabashi, Japan. He has made significant contributions to the field of pharmaceutical chemistry, particularly in the development of novel compounds with potential therapeutic applications. With a total of 3 patents to his name, Kawahara's work exemplifies innovation in drug production methods.

Latest Patents

Kawahara's latest patents include a crystal form of a tricyclic benzopyran compound and its production method. This compound, specifically the crystal forms of (3R,4S)-7-hydroxymethyl-2,2,9-trimethyl-4-(phenethylamino)-3,4-dihydro-2H-pyrano[2,3-g]quinolin-3-ol, has shown promise as a drug. The production methods involve crystallizing the compound from various solvents, including acetate esters and aromatic hydrocarbons. Another significant patent involves the crystals of hydrochloride of a pyridazin-3(2H)-one compound, which includes a novel process for producing 4-bromo-6-(3-(4-chloro-phenyl)propoxy)-5-(pyridin-3-ylmethylamino)pyridazin-3(2H)-one monohydrochloride. These A-form crystals exhibit a unique powder X-ray diffraction pattern, indicating their distinct structural properties.

Career Highlights

Kawahara is currently employed at Nissan Chemical Industries Limited, where he continues to advance his research in pharmaceutical compounds. His work has not only contributed to the scientific community but also holds potential for real-world applications in medicine.

Collaborations

Throughout his career, Kawahara has collaborated with esteemed colleagues, including Takanori Shimizu and Takashi Horiuchi. These partnerships have fostered a collaborative environment that enhances innovation and research outcomes.

Conclusion

Shiro Kawahara's contributions to pharmaceutical chemistry through his innovative patents and collaborative efforts highlight his role as a key inventor in the field. His work continues to pave the way for advancements in drug development and production methods.

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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