Tokyo, Japan

Hirofumi Nishiwaki

This inventor holds 5 USPTO granted patents and 1 EPO patent. Top assignee: Ricoh Company, Ltd.. Active years: 1996-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirofumi Nishiwaki. Retrieved from https://idiyas.com/inventor/hirofumi-nishiwaki

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


% Patents Active = 80.0


Average Co-Inventor Count = 1.5

ph-index = 4

Forward Citations = 66(Granted Patents)


Location History:

  • Yokohama, JP (1996 - 2005)
  • Tokyo, JP (2008)

Company Filing History:


Years Active: 1996-2008

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5 patents (USPTO):Explore Patents

Title: Hirofumi Nishiwaki: Innovator in Printing Technology

Introduction

Hirofumi Nishiwaki is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of printing technology, holding a total of 5 patents. His work focuses on enhancing the functionality and efficiency of printer systems.

Latest Patents

Nishiwaki's latest patents include a printer driver program and a printing control device. The printer driver program is designed to transmit print data to a printer connected via a network. It features a document password processing unit that prompts users to input a password for decrypting PDF documents. The print data creating unit then generates print data that includes the encrypted PDF document and the document password, which is transmitted to the printer through a host interface controller.

The printing control device is part of a digital complex system that incorporates an automatic color sensing function and an interleaving print function. This device receives print requests and detects if a preceding printing task is active. It controls the interleaving print function to ensure that print modes are consistent before allowing the execution of interleaving print operations.

Career Highlights

Hirofumi Nishiwaki is currently employed at Ricoh Company, Ltd., where he continues to innovate in the printing sector. His work has significantly impacted the efficiency and security of printing processes.

Collaborations

Nishiwaki collaborates with talented coworkers, including Kenichi Takeda and Takamasa Hayashi. Their combined expertise contributes to the advancement of printing technologies at Ricoh.

Conclusion

Hirofumi Nishiwaki is a prominent figure in the field of printing technology, with a focus on developing innovative solutions that enhance printer functionality. His contributions through patents and collaboration with colleagues continue to shape the future of printing.

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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