Musashino, Japan

Hitoshi Sakazume

This inventor holds 9 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1997-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hitoshi Sakazume. Retrieved from https://idiyas.com/inventor/hitoshi-sakazume

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


% Patents Active = 88.9

Average Co-Inventor Count = 1.3

ph-index = 7

Forward Citations = 337(Granted Patents)


Location History:

  • Musashino, JP (1997 - 1999)
  • Inagi, JP (1999 - 2003)

Company Filing History:


Years Active: 1997-2003

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9 patents (USPTO):Explore Patents

Title: Hitoshi Sakazume: Inventor in Storage-Media Playback Technology

Introduction

Hitoshi Sakazume is an inventor based in Musashino, Japan, associated with Fujitsu Corporation. His work includes inventions for identifying storage media and synchronizing the playback of stored data with related information. His portfolio includes 9 patents.

Latest Patents

Sakazume’s listed patents include “Automatic Storage Medium Identifying Method and Device,” “Automatic Music CD Identifying Method and Device,” “Storage Medium Playback Method and Device,” and “Storage Medium as Music CD.”

The playback inventions describe a system that reads data from a storage medium and reproduces it alongside corresponding additional information. A control unit synchronizes the playback of the data and the additional information, enabling them to be presented together.

Career Highlights

Sakazume’s patent work reflects an emphasis on storage-media identification and coordinated playback. The described systems combine reading, storing, and reproducing data and associated information.

Collaborations

His listed coworkers include Ryo Kajiyama and Seiji Tsutsui.

Conclusion

Hitoshi Sakazume’s inventions focus on identifying storage media and synchronizing stored data with related information during playback.

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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