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For the Inventor, By the Inventor

Oyama, Japan

Makoto Shimizu

This inventor holds 8 USPTO granted patents and 3 published patent applications. Top assignee: Fujitsu Corporation. Active years: 2013-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Makoto Shimizu. Retrieved from https://idiyas.com/inventor/makoto-shimizu-gt413ev6

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

Calculating rank
USPTO Granted Patents = 8 

% Patents Active = 37.5

Average Co-Inventor Count = 2.5

ph-index = 2

Forward Citations = 7(Granted Patents)


Location History:

  • Kawasaki, JP (2013)
  • Oyama, JP (2014 - 2024)

Company Filing History:

goldMedal8 out of 39,378 
 
Fujitsu Corporation
 patents

Years Active: 2013-2024

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8 patents (USPTO):Explore Patents
1. 12047115 - Polarization variation monitoring system and polarization variation monitoring method (2024-07-23),
2. 9882647 - Optical transmission apparatus, optical transmission system, and polarization dependent loss monitor (2018-01-30),
3. 9762986 - Frame converter and frame conversion method (2017-09-12),
4. 9722704 - Optical transmission apparatus and method for controlling optical power (2017-08-01),
5. 9465701 - Relay device and recovery method (2016-10-11),
6. 9436211 - Clock conversion apparatus with an elastic store memory from which data is written in synchronization with a first clock and read out in synchronization with a second clock (2016-09-06),
7. 8891667 - Transmission apparatus, transmission method and method of altering transmission band (2014-11-18),
8. 8422396 - Rate monitoring apparatus (2013-04-16),

Title: The Innovations of Makoto Shimizu

Introduction

Makoto Shimizu is a prominent inventor based in Oyama, Japan, known for his significant contributions to optical transmission technology. With a total of eight patents to his name, Shimizu has made remarkable advancements in the field, particularly in polarization variation monitoring systems.

Latest Patents

Shimizu's latest patents include a polarization variation monitoring system and method. This innovative system features a first transmission device equipped with a first counter that generates a counter value incremented in a specified cycle. The second transmission device includes a second counter that also generates a counter value in the same specified cycle. The polarization variation monitoring device acquires values from both counters and determines the occurrence position of polarization variation based on these values. Another notable patent is for an optical transmission apparatus, which includes a coherent detector that performs coherent detection of light with different polarization components. This apparatus also features an adaptive equalizer and a polarization dependent loss monitor, which work together to enhance the performance of optical transmission paths.

Career Highlights

Shimizu is currently employed at Fujitsu Corporation, where he continues to develop cutting-edge technologies in optical communications. His work has been instrumental in improving the efficiency and reliability of optical transmission systems.

Collaborations

Shimizu has collaborated with notable colleagues, including Taku Saito and Kosuke Komaki, contributing to various projects that push the boundaries of optical technology.

Conclusion

Makoto Shimizu's innovative work in optical transmission technology has led to significant advancements in the field. His patents reflect a deep understanding of polarization variation and its implications for optical systems. Shimizu's contributions continue to influence the industry and pave the way for future innovations.

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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