Katano, Japan

Ryuji Nishiyama

This inventor holds 4 USPTO granted patents. Top assignees: Matsushita Electric Industrial Co., Ltd., Tomoegawa Paper Co., Inc.. Active years: 1979-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryuji Nishiyama. Retrieved from https://idiyas.com/inventor/ryuji-nishiyama-09sss668

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 = 3.7

ph-index = 2

Forward Citations = 16(Granted Patents)


Location History:

  • Osaka, JP (1979)
  • Katano, JP (1991)
  • Kadoma, JP (1997)

Company Filing History:


Years Active: 1979-1997

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4 patents (USPTO):Explore Patents

Title: Ryuji Nishiyama: Innovator in Imaging Technology

Introduction

Ryuji Nishiyama is a notable inventor based in Katano, Japan. He has made significant contributions to the field of imaging technology, holding a total of 4 patents. His work focuses on developing advanced methods and materials for image formation and thermal printing.

Latest Patents

Nishiyama's latest patents include a two-component developer and an image-forming method. The two-component developer is designed for use with an image-forming apparatus that allows for the removal and recovery of toner remaining on a photoconductive drum after transfer to a receptor sheet, without the need for cleaning means. This developer consists of toner matrix particles containing a binder resin and a colorant, along with a magnetic powder adhering to each particle's surface. Additionally, he has developed a thermal printer that features multiple heating resistors divided into units, with associated driver circuits, latch circuits, and shift registers. This innovative design allows for continuous application of print data and hysteresis correction data during printing.

Career Highlights

Throughout his career, Ryuji Nishiyama has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Tomoegawa Paper Co., Inc. His experience in these organizations has contributed to his expertise in imaging technologies and patent development.

Collaborations

Nishiyama has collaborated with several talented individuals in his field, including Yoshikazu Tsuru and Koji Harakawa. These partnerships have likely enhanced his innovative capabilities and led to the successful development of his patents.

Conclusion

Ryuji Nishiyama's contributions to imaging technology through his patents and collaborations highlight his role as a significant inventor in this field. His work continues to influence advancements in imaging and printing technologies.

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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