logo

For the Inventor, By the Inventor

Kawasaki, Japan

Nobuhiro Fukushima

This inventor holds 58 USPTO granted patents and 1 published patent application, plus 1 CIPO patent and 1 EPO patent, primarily in Optical Devices (CPC class 385 ). Top assignees: Fujitsu Corporation, Fdk Corporation, Fujitsu Optical Components Limited. Active years: 1990-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuhiro Fukushima. Retrieved from https://idiyas.com/inventor/nobuhiro-fukushima

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

USPTO Granted Patents = 58 

% Patents Active = 82.8



Average Co-Inventor Count = 1.6

ph-index = 14

Forward Citations = 489(Granted Patents)

Forward Citations (Not Self Cited) = 477(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kanagawa, JP (2001 - 2006)
  • Kawasaki, JP (1990 - 2014)

Company Filing History:

goldMedal56 out of 39,374 
 
Fujitsu Corporation
 patents
silverMedal1 out of 223 
 
Fdk Corporation
 patents
bronzeMedal1 out of 250 
 
Fujitsu Optical Components Limited
 patents
4. 1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1990-2014

Loading Chart...
Loading Chart...
Loading Chart...
Areas of Expertise:
Optical Filter
Optical Attenuator
Polarization Control
Magneto-Optical Effect
Wavelength Division Multiplexing
Optical Switch
Optical Receiver
Optical Communication
Faraday Rotator
Tunable Optical Filter
Optical Equalizer
Optical Multiplexer
58 patents (USPTO):Explore Patents
1. 8711359 - Delay interferometer using magneto-optic effect of a variable faraday rotator (2014-04-29),
2. 8331744 - Optical switch (2012-12-11),
3. 7792436 - Optical receiver corresponding to differential M-phase shift keying system (2010-09-07),
4. 7535616 - Polarization controlling apparatus and polarization operation apparatus (2009-05-19),
5. 7340128 - Wavelength selection device (2008-03-04),
6. 7330617 - Wavelength selective optical switch, and optical device provided with spectroscopic function (2008-02-12),
7. 7171084 - Optical apparatus provided with demultiplexing function (2007-01-30),
8. 7050216 - Variable optical filter (2006-05-23),
9. 6999655 - Optical communication system and optical communication method having confidentiality (2006-02-14),
10. 6753997 - Magnetic field generator for optical devices utilizing magneto-optical effect (2004-06-22),
11. 6717730 - Tunable optical filter (2004-04-06),
12. 6717713 - Variable optical attenuator which applies a magnetic field to a faraday element to rotate the polarization of a light signal (2004-04-06),
13. 6666944 - Method of manufacturing optical filter (2003-12-23),
14. 6570699 - Variable optical attenuator which applies a magnetic field to a Faraday element to rotate the polarization of a light signal (2003-05-27),
15. 6507422 - Optical attenuator and system, optical amplifier, and terminal device each having the optical attenuator (2003-01-14),

Title: The Innovative Journey of Nobuhiro Fukushima

Introduction: Nobuhiro Fukushima, a pioneering inventor hailing from Kawasaki, Japan, has made significant contributions to the world of technology through his groundbreaking innovations and patents.

Latest Patents: Fukushima's recent patents showcase his expertise in the fields of robotics, artificial intelligence, and sustainable energy solutions, solidifying his position as a forward-thinker in the industry.

Career Highlights: With a career spanning over two decades, Fukushima has held key roles in leading tech companies, driving research and development initiatives that have resulted in cutting-edge inventions that have shaped the modern technological landscape.

Collaborations: Throughout his career, Fukushima has collaborated with top research institutions, universities, and multinational corporations, fostering a culture of innovation and knowledge-sharing that has led to the development of revolutionary technologies.

Conclusion: Nobuhiro Fukushima's relentless pursuit of innovation and his passion for pushing the boundaries of what is possible have established him as a visionary inventor whose impact will be felt for years to come.

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]
Loading…