Yamato, Japan

Kazuhara Toyokawa

This inventor holds 2 USPTO granted patents, plus 1 CIPO patent. Top assignee: International Business Machines Corporation. Active years: 1987-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhara Toyokawa. Retrieved from https://idiyas.com/inventor/kazuhara-toyokawa

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 = 1.5

ph-index = 2

Forward Citations = 70(Granted Patents)


Location History:

  • Kanagawa, JP (1987)
  • Yamato, JP (2004)

Company Filing History:


Years Active: 1987-2004

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2 patents (USPTO):Explore Patents

Title: Kazuhara Toyokawa: Innovator in Content Data and Facsimile Transmission Technologies

Introduction

Kazuhara Toyokawa is a notable inventor based in Yamato, Japan. He has made significant contributions to the fields of content data authentication and facsimile transmission. With a total of 2 patents, his work has had a lasting impact on technology.

Latest Patents

Toyokawa's latest patents include a "Content Data Judging Apparatus" and a "Compressed Block Code for Facsimile Transmission." The Content Data Judging Apparatus is designed to determine whether data prepared by a digital device have been altered. This is achieved through an authentication process that involves reading content data from a medium, embedding verification data, and extracting this data to assess any alterations. The apparatus also includes means for identifying portions containing altered data.

The Compressed Block Code for Facsimile Transmission patent describes a coding process that utilizes block coding and dither matrices of black and white picture elements. This method allows for efficient transmission of pictorial data by representing continuous tone regions with standardized patterns in matrix form. The coding process counts runs of identical patterns and uses symbols to indicate repetitions, thereby improving the efficiency of data transmission.

Career Highlights

Throughout his career, Kazuhara Toyokawa has worked with prominent organizations, including IBM. His experience in these companies has contributed to his expertise in developing innovative technologies.

Collaborations

Toyokawa has collaborated with notable individuals such as Norishige Morimoto and Satoko Tonegawa. These collaborations have likely enriched his work and led to advancements in his field.

Conclusion

Kazuhara Toyokawa's contributions to technology through his patents and collaborations highlight his role as an influential inventor. His work continues to shape the landscape of content data authentication and facsimile transmission.

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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