Fujisawa, Japan

Itsuo Matsubara

This inventor holds 1 USPTO granted patent. Top assignees: Nippon Electric Co., Ltd., Nippon Telegraph and Telephone Public Corporation. Active years: 1976.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Itsuo Matsubara. Retrieved from https://idiyas.com/inventor/itsuo-matsubara

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 = 5.0

ph-index = 1

Forward Citations = 9(Granted Patents)


Company Filing History:


Years Active: 1976

Loading Chart...
1 patent (USPTO):Explore Patents

Title: Itsuo Matsubara: Holographic Memory Inventor

Introduction

Itsuo Matsubara is an inventor associated with Fujisawa, Japan. His work includes a patent for a holographic memory system designed to retrieve stored information efficiently from large hologram plates.

Latest Patents

Matsubara is credited with 1 patent, titled “Large Holographic Memory with Plural Overlapping Detector Arrays.” The invention organizes mini-holograms across sections of a relatively large storage plate, with a photodiode array associated with each section. When a coherent light beam interrogates a mini-hologram, its stored information is detected by the corresponding array and directed to memory output terminals, potentially using OR logic. The design supports storage and retrieval of many discrete entries, such as character definitions.

Career Highlights

Matsubara’s listed professional affiliations include Nippon Electric Co., Ltd. and Nippon Telegraph and Telephone Public Corporation. His patent reflects an approach to expanding holographic storage while coordinating detection across multiple plate sections.

Collaborations

Matsubara’s listed coworkers include Masahiro Moriwaki and Mitsuhito Sakaguchi.

Conclusion

Itsuo Matsubara’s patented holographic memory system combines segmented mini-hologram storage with associated detector arrays to retrieve information from large storage plates.

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]
Loading…