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For the Inventor, By the Inventor

Kanuma, Japan

Masato Tanaka

This inventor holds 19 USPTO granted patents and 2 published patent applications, primarily in Optical Communication. Top assignees: Sumitomo Electric Industries, Limited, Keio University, Kyoto University. Active years: 2007-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masato Tanaka. Retrieved from https://idiyas.com/inventor/masato-tanaka-vtzy3s3k

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

Calculating rank
USPTO Granted Patents = 19 

% Patents Active = 47.4

Average Co-Inventor Count = 2.0

ph-index = 3

Forward Citations = 25(Granted Patents)


Location History:

  • Aomori, JP (2008)
  • Kanagawa, JP (2008)
  • Yokohama, JP (2007 - 2015)
  • Kanuma, JP (2014 - 2016)
  • Osaka, JP (2019 - 2024)

Company Filing History:

goldMedal19 out of 10,652 
 
Sumitomo Electric Industries, Limited
 patents
silverMedal1 out of 361 
 
Keio University
 patents
bronzeMedal1 out of 872 
 
Kyoto University
 patents
4. 1 out of 73 
 
Sumitomo Electric Fine Polymer, Inc.
 patents
where one patent can have more than one assignee

Years Active: 2007-2026

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Areas of Expertise:
Optical Fiber
Wavelength Multiplexer
Signal Quality Evaluation
Optical Switch
Multi-Core Cable
Optical Connection Structure
Supercontinuum Lightwave
Optical Signal Noise Suppressor
Blood Vessel Analysis
Coaxial Cable
Composite Cable
Optical Transmission System
19 patents (USPTO):Explore Patents
1. 12523823 - Optical fiber bundle and optical switch (2026-01-13),
2. 12442983 - Wavelength multiplexer/demultiplexer (2025-10-14),
3. 12298566 - Optical fiber connection structure (2025-05-13),
4. 11927805 - Optical fiber connection structure (2024-03-12),
5. 11402585 - Optical connection structure (2022-08-02),
6. 10365593 - Self-heating fuser roller (2019-07-30),
7. 9431726 - Multi-core cable (2016-08-30),
8. 9269477 - Multi-core cable (2016-02-23),
9. 9178287 - Multi-core cable assembly (2015-11-03),
10. 9172226 - Multi-core cable and aligning method therefor (2015-10-27),
11. 9002439 - Blood vessel wall analyzing device and blood vessel wall analyzing method (2015-04-07),
12. 8647149 - Connecting member-terminated multi-core coaxial cable and method for manufacture thereof (2014-02-11),
13. 7705287 - Broadband light source unit that produces a supercontinuum lightwave, and optical analyzer (2010-04-27),
14. 7643759 - Signal-quality evaluation device, signal adjustment method, optical-signal evaluation system, and optical transmission system (2010-01-05),
15. 7551808 - Optical signal noise suppressor and optical signal noise suppressing method (2009-06-23),

Title: Masato Tanaka: Innovator in Optical Technologies

Introduction

Masato Tanaka is a prominent inventor based in Kanuma, Japan. He has made significant contributions to the field of optical technologies, holding a total of 19 patents. His work focuses on advancements in wavelength multiplexing and optical fiber connections, showcasing his expertise and innovative spirit.

Latest Patents

Tanaka's latest patents include a wavelength multiplexer/demultiplexer and an optical fiber connection structure. The wavelength multiplexer/demultiplexer features a first collimator, multiple second collimators, and wavelength selective filters. Each filter is designed to transmit optical signals within a specific wavelength band while reflecting signals outside that band. The optical fiber connection structure incorporates a multi-core fiber and several single-core fibers, utilizing lenses to optimize light transmission.

Career Highlights

Throughout his career, Masato Tanaka has worked with notable organizations such as Sumitomo Electric Industries and Kyoto University. His experience in these institutions has allowed him to refine his skills and contribute to groundbreaking innovations in optical technology.

Collaborations

Tanaka has collaborated with esteemed colleagues, including Kazuhiro Sato and Hidehisa Tazawa. These partnerships have fostered a creative environment that has led to the development of advanced optical solutions.

Conclusion

Masato Tanaka's contributions to optical technologies through his patents and collaborations highlight his role as a leading inventor in the field. His innovative work continues to influence advancements in optical 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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