Izumi, Japan

Keiichiro Doi

This inventor holds 5 USPTO granted patents. Top assignees: Sharp Kabushiki Kaisha Corporation, Riccar Company, Ltd.. Active years: 1982-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiichiro Doi. Retrieved from https://idiyas.com/inventor/keiichiro-doi

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 = 3.5

ph-index = 4

Forward Citations = 94(Granted Patents)


Company Filing History:


Years Active: 1982-1984

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5 patents (USPTO):Explore Patents

Title: Keiichiro Doi: Innovator in Electromagnetic Cooking Technology

Introduction

Keiichiro Doi is a notable inventor based in Izumi, Japan. He has made significant contributions to the field of electromagnetic cooking technology, holding a total of 5 patents. His innovative designs have improved the efficiency and reliability of cooking appliances.

Latest Patents

Among his latest patents is an "Exciting Arrangement for Induction Heating Process." This invention features an improved exciting arrangement for an induction heating apparatus, which includes a heating coil positioned between a top plate and a bottom plate. The design incorporates a shielding plate made of non-magnetizable metallic material and a coil support member of highly magnetizable material, enhancing the apparatus's performance. Another significant patent is the "Electromagnetic Cooking Apparatus," which aims to lower the maximum voltage impressed on a switching transistor, ensuring stable operation and high reliability.

Career Highlights

Throughout his career, Keiichiro Doi has worked with prominent companies such as Sharp Corporation and Riccar Company, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to the development of advanced cooking technologies.

Collaborations

Keiichiro has collaborated with talented individuals in his field, including Shigeki Kondo and Tomofumi Iketani. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Keiichiro Doi's contributions to electromagnetic cooking technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of engineering principles and a desire to enhance everyday cooking experiences.

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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