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For the Inventor, By the Inventor

Kawasaki, Japan

Yoshio Sakai

This inventor holds 13 USPTO granted patents and 1 published patent application and 1 EPO patent, primarily in Optical Communication. Top assignees: Fujitsu Corporation, Fujitsu Optical Components Limited. Active years: 2007-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshio Sakai. Retrieved from https://idiyas.com/inventor/yoshio-sakai-ze5fl50h

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

Calculating rank
USPTO Granted Patents = 13 

% Patents Active = 30.8


Average Co-Inventor Count = 2.3

ph-index = 4

Forward Citations = 44(Granted Patents)


Company Filing History:

goldMedal11 out of 39,381 
 
Fujitsu Corporation
 patents
silverMedal2 out of 251 
 
Fujitsu Optical Components Limited
 patents

Years Active: 2007-2023

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Areas of Expertise:
Optical Communication
Optical Transmitter
Optical Receiver
Passive Optical Network
Optical Switch
Data Transmission
Scrambling Method
Wavelength Selective Switch
Signal Switching
Testing Apparatus
13 patents (USPTO):Explore Patents
1. 11646798 - Receiving device and receiving method (2023-05-09),
2. 9450680 - Optical communication system, optical transmitter, and optical receiver (2016-09-20),
3. 9130680 - Optical transmitter and modulated optical signal generating method (2015-09-08),
4. 8929371 - Optical transmission device, scrambling method, and descrambling method (2015-01-06),
5. 8406582 - Optical switch and method for controlling optical switch (2013-03-26),
6. 8331402 - Optical transmission device, scrambling method, and descrambling method (2012-12-11),
7. 7920791 - Passive optical network system and method of data transmission in the passive optical network (2011-04-05),
8. 7912329 - Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching (2011-03-22),
9. 7596290 - Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching (2009-09-29),
10. 7466915 - Mirror controller for optical switch (2008-12-16),
11. 7440649 - Wavelength selective switch module (2008-10-21),
12. 7277606 - Optical switch device (2007-10-02),
13. 7239773 - Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching (2007-07-03),

Title: The Innovations of Yoshio Sakai

Introduction

Yoshio Sakai is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of optical communication, holding a total of 13 patents. His work has advanced the technology used in communication systems, making them more efficient and effective.

Latest Patents

Sakai's latest patents include a receiving device and method that enhances the detection of burst light signals. This device utilizes a light source for local oscillation, a detector for signal input, and a series of converters and amplifiers to process the signals. Another notable patent is for an optical communication system that includes an optical transmitter and receiver. This system allows for beat detection and frequency analysis, improving the overall performance of optical communication.

Career Highlights

Throughout his career, Yoshio Sakai has worked with notable companies such as Fujitsu Corporation and Fujitsu Optical Components Limited. His experience in these organizations has allowed him to develop and refine his innovative ideas in optical technology.

Collaborations

Sakai has collaborated with talented individuals in his field, including Kazuyuki Mori and Yuji Tochio. These partnerships have contributed to the success of his projects and the advancement of optical communication technologies.

Conclusion

Yoshio Sakai's contributions to optical communication through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the development of advanced communication systems.

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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