Kamakura, Japan

Hisao Maruyama

This inventor holds 2 USPTO granted patents. Top assignee: Canon Kabushiki Kaisha. Active years: 1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisao Maruyama. Retrieved from https://idiyas.com/inventor/hisao-maruyama-36kmt655

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 = 3.0

ph-index = 2

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 1993

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2 patents (USPTO):Explore Patents

Title: Hisao Maruyama: Innovator in Electrophotographic Technology

Introduction

Hisao Maruyama is a notable inventor based in Kamakura, Japan. He has made significant contributions to the field of electrophotography, particularly in the development of photosensitive members used in copying machines and printers. With a total of 2 patents, Maruyama's work has had a lasting impact on the industry.

Latest Patents

His latest patents include an electrophotographic photosensitive member and a process for its production. The electrophotographic photosensitive member is produced by coating an electroconductive substrate with specific compounds through a spray-coating method. This innovative approach allows for the formation of a photosensitive layer that enhances the performance of electrophotographic devices. The process involves spraying two or more types of charge-generating materials onto an electroconductive support, resulting in a highly effective photosensitive member.

Career Highlights

Maruyama is associated with Canon Kabushiki Kaisha, a leading company in imaging and printing technology. His work at Canon has positioned him as a key player in the advancement of electrophotographic technology. His contributions have not only improved existing technologies but have also paved the way for future innovations in the field.

Collaborations

Some of his notable coworkers include Yoichi Kawamorita and Kazushige Nakamura. Their collaborative efforts have further enhanced the research and development of electrophotographic technologies.

Conclusion

Hisao Maruyama's innovative work in electrophotographic technology has significantly influenced the industry. His patents and contributions continue to shape the future of imaging and printing 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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