Toda, Japan

Kouhei Ushikubo

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Mining Co., Ltd.. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kouhei Ushikubo. Retrieved from https://idiyas.com/inventor/kouhei-ushikubo

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 5(Granted Patents)


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: Kouhei Ushikubo: Innovator in Organic Phosphine Production

Introduction

Kouhei Ushikubo is a notable inventor based in Toda, Japan. He has made significant contributions to the field of organic chemistry, particularly in the production of high-purity organic phosphine. His innovative approach has implications for the development of high-performance compound semiconductors.

Latest Patents

Ushikubo holds a patent for a process that produces high-purity organic phosphine. This process involves washing organic phosphine or an organic solvent solution with water, an alkaline aqueous solution, or an acidic aqueous solution. This method effectively removes impurities, such as silicon compounds, 2-methoxy ethanol, and organic halides, from the organic phosphine. The resulting high-purity organic phosphine can be utilized as a raw material for high-performance compound semiconductor thin films that incorporate Groups III and V elements of the Periodic Table.

Career Highlights

Kouhei Ushikubo is associated with Nippon Mining Co., Ltd., where he has been able to apply his expertise in organic chemistry. His work has not only advanced the understanding of organic phosphine but has also contributed to the broader field of semiconductor technology.

Collaborations

Ushikubo has collaborated with notable colleagues, including Toru Imori and Takayuki Ninomiya. These collaborations have fostered a productive environment for innovation and research within the company.

Conclusion

Kouhei Ushikubo's contributions to the production of high-purity organic phosphine highlight his role as an important inventor in the field of organic chemistry. His work continues to influence advancements in semiconductor technology.

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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