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For the Inventor, By the Inventor

Kawasaki, Japan

Yuzuru Ishioka

This inventor holds 7 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1993-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuzuru Ishioka. Retrieved from https://idiyas.com/inventor/yuzuru-ishioka

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 = 71.4

Average Co-Inventor Count = 1.3

ph-index = 4

Forward Citations = 70(Granted Patents)


Location History:

  • Kanagawa, JP (2000)
  • Kawasaki, JP (1993 - 2007)

Company Filing History:

goldMedal7 out of 39,378 
 
Fujitsu Corporation
 patents

Years Active: 1993-2007

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7 patents (USPTO):Explore Patents
1. 7219147 - Method of effecting protection control in communication network and RPR apparatus (2007-05-15),
2. 6999422 - Communication device (2006-02-14),
3. 6157704 - Subscriber line test system for access network (2000-12-05),
4. 5615033 - Optical signal transmission apparatus and method (1997-03-25),
5. 5483592 - Ringer unit driving system in a subscriber transmission system (1996-01-09),
6. 5469282 - Power supply system for optical network unit of a fiber in the loop (1995-11-21),
7. 5195124 - Testing system for local subscribers (1993-03-16),

Title: Yuzuru Ishioka: Innovator in Communication Technology

Introduction

Yuzuru Ishioka is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of communication technology, holding a total of 7 patents. His work focuses on enhancing communication networks and optimizing packet transport methods.

Latest Patents

Ishioka's latest patents include a method for effecting protection control in communication networks. This invention aims to avoid conflicts between protection switches of SONET and RPR apparatuses. The method ensures that when ring switching of the BLSR is validated, the protection function of the RPR apparatus is invalidated, and vice versa. Another notable patent is a communication device designed to efficiently transport packets through optimal routes. This device utilizes a test packet generator to evaluate multiple routes, ranking them based on transport times to select the most efficient path for data transmission.

Career Highlights

Yuzuru Ishioka is currently employed at Fujitsu Corporation, where he continues to innovate in the field of communication technology. His work has been instrumental in developing solutions that enhance network efficiency and reliability.

Collaborations

Ishioka has collaborated with notable coworkers, including Rutsuko Yoshida and Rika Got. Their combined expertise contributes to the advancement of communication technologies within their organization.

Conclusion

Yuzuru Ishioka's contributions to communication technology through his patents and work at Fujitsu Corporation highlight his role as a key innovator in the field. His inventions continue to shape the future of communication networks.

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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