Kawasaki, Japan

Toshikatsu Narumi

This inventor holds 3 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1995-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshikatsu Narumi. Retrieved from https://idiyas.com/inventor/toshikatsu-narumi

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 = 6.0

ph-index = 3

Forward Citations = 163(Granted Patents)


Company Filing History:


Years Active: 1995-1999

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3 patents (USPTO):Explore Patents

Title: The Innovations of Toshikatsu Narumi

Introduction

Toshikatsu Narumi is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of optical disk technology. With a total of 3 patents to his name, Narumi's work focuses on preventing unauthorized use of recording media.

Latest Patents

Narumi's latest patents include an innovative method for preventing unauthorized use of optical disks. This method involves reading first information from the user inaccessible area of a recording medium. The first information is then compared with second information concerning a true recording medium, which is a lawfully produced copy. If the first information corresponds to the second information, it is concluded that the recording medium is indeed the true recording medium.

Career Highlights

Toshikatsu Narumi is currently employed at Fujitsu Corporation, where he continues to develop cutting-edge technologies. His expertise in optical disks has positioned him as a key player in the industry. His work not only enhances security measures for recording media but also contributes to the overall advancement of technology in this field.

Collaborations

Narumi has collaborated with notable colleagues such as Masahiro Nakada and Kazunori Naito. Their combined efforts have led to innovative solutions in optical disk technology.

Conclusion

Toshikatsu Narumi's contributions to the field of optical disks demonstrate his commitment to innovation and security. His patents reflect a deep understanding of technology and its applications in preventing unauthorized use.

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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