Osaka, Japan

Yoshiyuki Imamiya

This inventor holds 5 USPTO granted patents. Top assignees: Sumika Fine Chemicals, Co.,ltd., Sumitomo Chemical Company, Limited. Active years: 2000-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiyuki Imamiya. Retrieved from https://idiyas.com/inventor/yoshiyuki-imamiya

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

Calculating rank

% Patents Active = 40.0

Average Co-Inventor Count = 2.5

ph-index = 2

Forward Citations = 8(Granted Patents)


Company Filing History:


Years Active: 2000-2007

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5 patents (USPTO):Explore Patents

Title: Innovations of Yoshiyuki Imamiya

Introduction

Yoshiyuki Imamiya is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of pharmaceuticals, particularly in the development of mirtazapine crystals. With a total of five patents to his name, his work has implications for the treatment of depression.

Latest Patents

Imamiya's latest patents include the creation of anhydrous mirtazapine crystals and the processes for preparing them. These low-hygroscopic anhydrous mirtazapine crystals have a hygroscopic degree of not more than 0.6% by weight when stored in air with a relative humidity of 75% at 25°C under atmospheric pressure for 500 hours. His innovative processes involve drying crystals of mirtazapine hydrate and crystallizing crude mirtazapine using a water-soluble organic solvent and water. These advancements can be effectively utilized as antidepressants.

Career Highlights

Throughout his career, Yoshiyuki Imamiya has worked with prominent companies such as Sumika Fine Chemicals Co., Ltd. and Sumitomo Chemical Company, Limited. His experience in these organizations has contributed to his expertise in the field of chemical engineering and pharmaceuticals.

Collaborations

Imamiya has collaborated with notable coworkers, including Eiichi Iishi and Chiharu Maeda. Their joint efforts have likely enhanced the quality and impact of his inventions.

Conclusion

Yoshiyuki Imamiya's contributions to the field of pharmaceuticals through his innovative patents on mirtazapine crystals highlight his importance as an inventor. His work continues to influence the development of effective treatments for depression.

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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