Hiroshima, Japan

Yoji Kawahara

This inventor holds 1 USPTO granted patent. Top assignee: Mitsui Toatsu Chemicals, Incorporated. Active years: 1992.

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

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 = 6.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1992

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1 patent (USPTO):Explore Patents

Title: Yoji Kawahara: Innovator in Solar Cell Technology

Introduction

Yoji Kawahara is a prominent inventor based in Hiroshima, Japan. He has made significant contributions to the field of solar energy through his innovative patent. His work focuses on enhancing the efficiency of solar cells, which is crucial for sustainable energy solutions.

Latest Patents

Kawahara holds a patent for a method for forming window material for solar cells. This patent describes a process for creating a dihydride-rich amorphous silicon semiconductor film suitable for use as a window material in solar cells. The method involves decomposing a gaseous mixture composed of disilane, a p-type dopant, and a diluent gas by applying glow discharge energy. This process results in a semiconductor film with an optical band gap of at least 1.8 eV, preferably exceeding 1.9 eV, on a substrate.

Career Highlights

Kawahara is associated with Mitsui Toatsu Chemicals, Incorporated, where he applies his expertise in semiconductor technology. His work has been instrumental in advancing solar cell materials, contributing to the development of more efficient energy solutions.

Collaborations

Kawahara has collaborated with notable colleagues, including Nobuhiro Fukuda and Sadao Kobayashi. Their combined efforts in research and development have furthered innovations in the field of solar energy.

Conclusion

Yoji Kawahara's contributions to solar cell technology exemplify the importance of innovation in renewable energy. His patent and collaborative efforts highlight the potential for advancements in sustainable energy solutions.

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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