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For the Inventor, By the Inventor

Tokyo, Japan

Haruki Kozawaguchi

This inventor holds 7 USPTO granted patents. Top assignee: Nippon Telegraph and Telephone Corporation. Active years: 1999-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Haruki Kozawaguchi. Retrieved from https://idiyas.com/inventor/haruki-kozawaguchi

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

USPTO Granted Patents = 7

% Patents Active = 85.7

Average Co-Inventor Count = 6.1

ph-index = 5

Forward Citations = 103(Granted Patents)


Company Filing History:

goldMedal7 out of 5,300 
 
Nippon Telegraph and Telephone Corporation
 patents

Years Active: 1999-2009

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7 patents (USPTO):Explore Patents
1. 7570567 - Multi-layered holographic read-only memory and data retrieval method (2009-08-04),
2. 6811728 - Multi-layered holographic read-only memory and data retrieval method (2004-11-02),
3. 6654532 - Read-only laminated information recording medium and manufacturing method therefor (2003-11-25),
4. 6556531 - Multi-layered holographic read-only memory and data retrieval method (2003-04-29),
5. 6222967 - Packaging platform, optical module using the platform, and methods for producing the platform and the module (2001-04-24),
6. 5975770 - Plastic ferrule for optical connector and method for production thereof (1999-11-02),
7. 5905823 - Polarization independent optical nonreciprocal circuit based on even (1999-05-18),

Title: Haruki Kozawaguchi: Innovator in Holographic Memory Technology

Introduction

Haruki Kozawaguchi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of holographic memory technology, holding a total of 7 patents. His innovative work focuses on developing advanced data retrieval methods that enhance memory capacity and efficiency.

Latest Patents

One of Kozawaguchi's latest patents is a multi-layered holographic read-only memory and data retrieval method. This invention provides an inexpensive solution for creating a large-capacity memory system. The design incorporates single-mode slab waveguides that are multi-layered, featuring a periodic scattering center. This center's period is approximately aligned with the guided mode's period, allowing the guided wave to be diffracted outside the waveguide, thus generating a holographic image.

Career Highlights

Kozawaguchi is currently employed at Nippon Telegraph and Telephone Corporation, where he continues to push the boundaries of technology. His work has garnered attention for its potential applications in various fields, including data storage and retrieval systems.

Collaborations

Throughout his career, Kozawaguchi has collaborated with notable colleagues such as Tadayuki Imai and Shougo Yagi. These partnerships have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Haruki Kozawaguchi stands out as a key figure in the realm of holographic memory technology. His innovative patents and collaborations reflect his commitment to advancing the field and enhancing data storage solutions.

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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