% Expired Patents = 80.0

Forward Citations = 12

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6 inventors (with patents filed for the assignee):

Haruhisa Soda (3 out of 20 patents)

Shigeru Nakagawa (2 out of 22 patents)

Koichi Iwaida (1 out of 1 patent)

4. Michiyo Kubo (1 out of 1 patent)

5. Hiroatsu Aoki (1 out of 1 patent)

6. Seishi Notomi (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 8008761 - Optical semiconductor apparatus (2011-08-30),

2. 7911686 - Optical module and optical communication system (2011-03-22),

3. 7711019 - Variable wavelength light source (2010-05-04),

4. 7561805 - Optical transmitter, optical receiver, optical communication system, and optical transmitter and receiver (2009-07-14),

5. 6973238 - Optical switch and optical communication system (2005-12-06),

Company Overview

Fibest Limited is a leading provider of fiber optic solutions for telecommunications and networking industries. With a focus on innovation and quality, Fibest offers a wide range of products including fiber optic cables, connectors, and accessories. Founded in 2005, the company has established itself as a trusted partner for clients seeking reliable and high-performance fiber optic solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

5 Patents

#2,721 in Tokyo

#6,651 in Japan

Tokyo, Japan

Fibest Limited

Forward Citations = 12

6 inventors:

Haruhisa Soda (3 out of 20 patents)

Shigeru Nakagawa (2 out of 22 patents)

Koichi Iwaida (1 out of 1 patent)

4. Michiyo Kubo (1 out of 1 patent)

5. Hiroatsu Aoki (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Fibest Limited. Retrieved from https://idiyas.com/company/fibest

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

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]