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For the Inventor, By the Inventor

Tokyo, Japan

Masatoshi Tokushima

This inventor holds 30 USPTO granted patents and 1 published patent application and 1 EPO patent, primarily in Optical Technology. Top assignees: Nec Corporation, Photonics Electronics Technology Research Association. Active years: 1997-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masatoshi Tokushima. Retrieved from https://idiyas.com/inventor/masatoshi-tokushima

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

USPTO Granted Patents = 30 

% Patents Active = 33.3

 

Average Co-Inventor Count = 1.2

ph-index = 8

Forward Citations = 232(Granted Patents)


Location History:

  • Minato-ku, JP (2004)
  • Ibaraki, JP (2014)
  • Tokyo, JP (1997 - 2021)

Company Filing History:

goldMedal27 out of 36,718 
 
Nec Corporation
 patents
silverMedal6 out of 68 
 
Photonics Electronics Technology Research Association
 patents
where one patent can have more than one assignee

Years Active: 1997-2021

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Areas of Expertise:
Optical Element
Photodetector
Grating Structure
Optical Circuit
Wavelength Filter
Optical Switch
Photonic Crystal
Optical Waveguide
Optical Control Device
Microchip
Optical Converter
Polarization Rotator
30 patents (USPTO):Explore Patents
1. 11137546 - Optical element (2021-10-05),
2. 10535786 - Photodetector having one-dimensional grating structure (2020-01-14),
3. 10088299 - Optical measurement element for alignment in wafer-level testing and method for aligning an optical probe using the same (2018-10-02),
4. 10025031 - Grating structure, and manufacturing method of grating coupler provided therewith (2018-07-17),
5. 9971099 - Grating coupler with high optical coupling efficiency for SMF (2018-05-15),
6. 9519115 - Optical circuit (2016-12-13),
7. 8873906 - Optical conversion element and optical conversion element manufacturing method (2014-10-28),
8. 8705920 - Wavelength filter (2014-04-22),
9. 8600204 - Optical control device (2013-12-03),
10. 8554027 - Optical switch (2013-10-08),
11. 8478088 - Optical switch and manufacturing method thereof (2013-07-02),
12. 8355614 - Optical waveguide (2013-01-15),
13. 8355611 - Photonic crystal element (2013-01-15),
14. 8208776 - Optical control device (2012-06-26),
15. 8170383 - Optical converter (2012-05-01),

Title: The Innovative Journey of Masatoshi Tokushima

Introduction: Masatoshi Tokushima is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Masatoshi Tokushima holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Masatoshi Tokushima has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs.

Collaborations: Throughout his career, Masatoshi Tokushima has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge exchange.

Conclusion: Masatoshi Tokushima's relentless pursuit of innovation and his passion for creating technology that makes a difference have solidified his position as a trailblazer in the world of inventions and patents.

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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