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For the Inventor, By the Inventor

Tokyo, Japan

Keishi Takaki

This inventor holds 21 USPTO granted patents and 4 published patent applications, primarily in Semiconductor Lasers. Top assignees: The Furukawa Electric Co., Ltd., Fuji Electric Co., Ltd.. Active years: 2007-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keishi Takaki. Retrieved from https://idiyas.com/inventor/keishi-takaki

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

USPTO Granted Patents = 21 

% Patents Active = 71.4

Average Co-Inventor Count = 3.8

ph-index = 4

Forward Citations = 55(Granted Patents)


Location History:

  • Kanagawa, JP (2015)
  • Chiba, JP (2012 - 2016)
  • Tokyo, JP (2007 - 2021)

Company Filing History:

goldMedal20 out of 2,643 
 
The Furukawa Electric Co., Ltd.
 patents
silverMedal2 out of 4,826 
 
Fuji Electric Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 2007-2021

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Areas of Expertise:
Optical Module
Light Output Device
Nitride Semiconductor
Semiconductor Multi-Layer Substrate
Laser Device
Vertical Light Emitting Device
Surface Emitting Laser
Optical Interconnection
Testing Method
DFB Semiconductor Laser
Manufacturing Method
Semiconductor Element
21 patents (USPTO):Explore Patents
1. 11139632 - Optical module and light output device (2021-10-05),
2. 9911842 - Nitride semiconductor device, production method thereof, diode, and field effect transistor (2018-03-06),
3. 9653589 - Semiconductor multi-layer substrate, semiconductor device, and method for manufacturing the same (2017-05-16),
4. 9300114 - Laser device, method of manufacturing the same, laser device array, light source and light module (2016-03-29),
5. 9276066 - Semiconductor multi-layer substrate and semiconductor element (2016-03-01),
6. 8941149 - Semiconductor device (2015-01-27),
7. 8861562 - Vertical light emitting device and manufacturing method (2014-10-14),
8. 8532155 - Optical interconnection system (2013-09-10),
9. 8494022 - Surface emitting laser, surface emitting laser array, light source and optical module (2013-07-23),
10. 8488644 - Semiconductor laser element and manufacturing method thereof (2013-07-16),
11. 8306080 - Vertical cavity surface emitting laser apparatus (2012-11-06),
12. 8270447 - Semiconductor light emitting element and manufacturing method thereof (2012-09-18),
13. 8204093 - Method of manufacturing vertical-cavity surface emitting laser and vertical-cavity surface emitting laser array (2012-06-19),
14. 8178364 - Testing method of surface-emitting laser device and testing device thereof (2012-05-15),
15. 7907653 - Vertical cavity surface emitting laser device and vertical cavity surface emitting laser array (2011-03-15),

Title: Keishi Takaki - Innovative Inventor from Tokyo

Introduction: Keishi Takaki is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Keishi Takaki holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his versatility and forward-thinking approach.

Career Highlights: With over two decades of experience in the innovation industry, Keishi Takaki has worked with leading research institutions and tech companies to develop cutting-edge solutions that have revolutionized the way we interact with technology.

Collaborations: Throughout his career, Keishi Takaki has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of creativity and excellence in all his projects.

Conclusion: Keishi Takaki's passion for innovation and his relentless pursuit of technological advancement continue to inspire the next generation of inventors and shape the future of technology.

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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