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For the Inventor, By the Inventor

Osaka, Japan

Nobuo Shirai

This inventor holds 8 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1993-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuo Shirai. Retrieved from https://idiyas.com/inventor/nobuo-shirai

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

USPTO Granted Patents = 8

% Patents Active = 75.0

Average Co-Inventor Count = 2.5

ph-index = 5

Forward Citations = 259(Granted Patents)


Location History:

  • Hino, JP (1993)
  • Kawasaki, JP (1998 - 2006)
  • Osaka, JP (2009 - 2010)

Company Filing History:

goldMedal8 out of 39,371 
 
Fujitsu Corporation
 patents

Years Active: 1993-2010

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8 patents (USPTO):Explore Patents
1. 7856021 - Packet transfer method and apparatus (2010-12-21),
2. 7609692 - Method and apparatus for controlling route in network (2009-10-27),
3. 7110397 - Packet transfer apparatus (2006-09-19),
4. 6463037 - Looping detection apparatus (2002-10-08),
5. 5912877 - Data exchange, data terminal accommodated in the same, data (1999-06-15),
6. 5734654 - Frame relay switching apparatus and router (1998-03-31),
7. 5197067 - Packet communication system using a telephone switching network and a (1993-03-23),
8. 5182762 - Modem having speed notifying means (1993-01-26),

Title: Nobuo Shirai: Innovator in Network Communication Technologies

Introduction

Nobuo Shirai is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of network communication technologies, holding a total of 8 patents. His work focuses on improving data transmission methods and enhancing network efficiency.

Latest Patents

Shirai's latest patents include a "Packet transfer method and apparatus" which establishes a TCP tunnel between routers for efficient packet transmission. This method allows for the forwarding of VoIP application packets using UDP without passing through the TCP tunnel. Another notable patent is the "Method and apparatus for controlling route in network," which involves a route controlling apparatus that manages data transmission across multiple carriers, ensuring optimal load distribution.

Career Highlights

Nobuo Shirai is currently employed at Fujitsu Corporation, where he continues to innovate in the field of network technologies. His expertise has led to advancements that benefit both the company and the broader telecommunications industry.

Collaborations

Throughout his career, Shirai has collaborated with notable colleagues such as Yukio Sone and Jiro Nakata. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Nobuo Shirai's contributions to network communication are invaluable, and his patents reflect a commitment to enhancing data transmission methods. His work at Fujitsu Corporation and collaborations with esteemed colleagues further solidify his status as a leading inventor in the field.

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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