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For the Inventor, By the Inventor

Kawasaki, Japan

Koji Otsubo

This inventor holds 16 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Fujitsu Corporation, Fujitsu Optical Components Limited, The University of Tokyo. Active years: 1994-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koji Otsubo. Retrieved from https://idiyas.com/inventor/koji-otsubo

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

USPTO Granted Patents = 16 

% Patents Active = 56.3


Average Co-Inventor Count = 1.5

ph-index = 5

Forward Citations = 109(Granted Patents)


Location History:

  • Kawasaki, JP (1994 - 2015)
  • Yokohama, JP (2019 - 2024)

Company Filing History:

goldMedal10 out of 39,371 
 
Fujitsu Corporation
 patents
silverMedal6 out of 250 
 
Fujitsu Optical Components Limited
 patents
bronzeMedal1 out of 1,355 
 
The University of Tokyo
 patents
where one patent can have more than one assignee

Years Active: 1994-2024

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16 patents (USPTO):Explore Patents
1. 12047121 - Optical device, optical transmission apparatus, optical reception apparatus, and optical communication apparatus (2024-07-23),
2. 11710914 - Optical module (2023-07-25),
3. 11309985 - Light source device that includes a plurality of light sources with different wavelengths and method of controlling wavelengths (2022-04-19),
4. 10714896 - Multi-wavelength light source and optical module using the same (2020-07-14),
5. 10411823 - Optical transmitter and optical receiver (2019-09-10),
6. 8965201 - Optical transmission device and optical transmission method (2015-02-24),
7. 8130443 - Optical waveform reshaping device (2012-03-06),
8. 8031394 - Wavelength conversion system, optical integrated device and wavelength conversion method (2011-10-04),
9. 7595508 - Optical semiconductor device and method for fabricating the same (2009-09-29),
10. 7564883 - Optical semiconductor device and method for fabricating the same (2009-07-21),
11. 7522647 - Semiconductor laser and method of fabricating the same (2009-04-21),
12. 7436586 - Wavelength conversion system, optical integrated device and wavelength conversion method (2008-10-14),
13. 7099363 - Surface-emitting laser with a low threshold value and low power consumption and method of manufacturing the same (2006-08-29),
14. 6728287 - Surface emitting semiconductor laser device capable of improving heat radiation efficiency and its manufacture method (2004-04-27),
15. 5404370 - Planar light emitting device having a reduced optical loss (1995-04-04),

Title: The Innovative Journey of Koji Otsubo

Introduction: Koji Otsubo, a distinguished inventor hailing from Kawasaki, Japan, has made significant contributions to the field of technology through his groundbreaking innovations.

Latest Patents: Koji Otsubo's recent patents include advancements in robotics, artificial intelligence, and sustainable energy solutions, showcasing his versatility and forward-thinking approach.

Career Highlights: With a career spanning over two decades, Koji Otsubo has worked with leading tech companies in Japan, spearheading research and development projects that have led to the creation of cutting-edge technologies.

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

Conclusion: Koji Otsubo's relentless pursuit of innovation and his passion for pushing the boundaries of technology make him a true pioneer in the world of inventions.

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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