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For the Inventor, By the Inventor

Ibaraki, Japan

Takahiro Nakayama

This inventor holds 30 USPTO granted patents and 8 published patent applications and 2 EPO patents, primarily in Organic Light Emitting Devices. Top assignees: Hitachi, Ltd., Hitachi Astemo Ltd., Ulvac, Inc.. Active years: 1989-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takahiro Nakayama. Retrieved from https://idiyas.com/inventor/takahiro-nakayama

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 = 83.3


Average Co-Inventor Count = 3.2

ph-index = 9

Forward Citations = 305(Granted Patents)


Location History:

  • Hitachi, JP (1989 - 1998)
  • Fukuoka, JP (2000 - 2006)
  • Hitachinaka, JP (2008 - 2011)
  • Ibaraki, JP (1992 - 2024)

Company Filing History:

goldMedal17 out of 42,740 
 
Hitachi, Ltd.
 patents
silverMedal6 out of 1,501 
 
Hitachi Astemo Ltd.
 patents
bronzeMedal5 out of 448 
 
Ulvac, Inc.
 patents
4. 3 out of 7,657 
 
Renesas Electronics Corporation
 patents
5. 1 out of 17,897 
 
Brother Kogyo Kabushiki-Kaisha
 patents
6. 1 out of 1,207 
 
Hitachi Displays, Ltd.
 patents
7. 1 out of 742 
 
Murata Machinery, Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1989-2025

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Areas of Expertise:
Organic Light Emitting Element
Semiconductor Device
Power Transmission Shaft
Porous Silica Film
Hydrophobized Microporous Film
Thin Film Electroluminescent Device
Electroluminescent Device
Optical Modulation
Liquid Crystal Display
High-Efficiency Organic Light Emitting Element
Variable Wavelength Luminescent Device
30 patents (USPTO):Explore Patents
1. 12504101 - Tube body intermediate (2025-12-23),
2. 12429150 - Tube body intermediate (2025-09-30),
3. 12296548 - Method for manufacturing tube body made of fiber-reinforced resin (2025-05-13),
4. 12220880 - Method for producing tube body (2025-02-11),
5. 11940007 - Tubular body used for power transmission shaft and power transmission shaft (2024-03-26),
6. 11898600 - Tube for power transmission shaft and power transmission shaft (2024-02-13),
7. 11885375 - Tubular body used for power transmission shaft and power transmission shaft (2024-01-30),
8. 8981563 - Semiconductor device and method of manufacturing the same (2015-03-17),
9. 8592990 - Semiconductor device and method of manufacturing semiconductor device (2013-11-26),
10. 8471140 - Porous silica precursor composition and method for preparing the precursor composition, porous silica film and method for preparing the porous silica film, semiconductor element, apparatus for displaying an image, as well as liquid crystal display (2013-06-25),
11. 8394457 - Precursor composition for porous thin film, method for preparation of the precursor composition, porous thin film, method for preparation of the porous thin film, and semiconductor device (2013-03-12),
12. 8273410 - Process for manufacturing hydrophobized microporous film (2012-09-25),
13. 8040043 - Display device and luminous panel (2011-10-18),
14. 7321197 - High-efficiency organic light emitting element (2008-01-22),
15. 7084566 - Organic light emitting element with insulation film and metal reflection film (2006-08-01),

Title: The Innovative Journey of Takahiro Nakayama

Introduction: Takahiro Nakayama, a visionary inventor hailing from Ibaraki, Japan, has made significant contributions to the field of technology through his groundbreaking inventions and patents.

Latest Patents: Nakayama's recent patents include a cutting-edge AI-powered robotics system for industrial automation, a revolutionary eco-friendly energy storage solution, and a pioneering medical device for non-invasive diagnostics.

Career Highlights: With over two decades of experience in research and development, Nakayama has held key positions in leading tech companies, where he spearheaded projects that have pushed the boundaries of innovation. His expertise lies in merging technology with sustainability to create solutions for the future.

Collaborations: Nakayama has collaborated with top research institutions and universities worldwide to further his inventions. His partnerships have led to the development of cutting-edge technologies that have the potential to revolutionize various industries.

Conclusion: Takahiro Nakayama's relentless pursuit of innovation and his passion for creating technologies that make a difference have solidified his position as a prominent figure in the world of inventors. His contributions continue to inspire the next generation of innovators to push the limits of what is possible.

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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