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For the Inventor, By the Inventor

Kanagawa, Japan

Hiroshi Nagai

This inventor holds 66 USPTO granted patents and 1 published patent application and 2 EPO patents, primarily in Liquid Crystal Displays (CPC class G09G). Top assignees: Nec Lcd Technologies, Ltd., Nlt Technologies, Ltd., Ebara Corporation. Active years: 1985-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Nagai. Retrieved from https://idiyas.com/inventor/hiroshi-nagai

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

USPTO Granted Patents = 66 

% Patents Active = 56.1

 

Average Co-Inventor Count = 2.6

ph-index = 10

Forward Citations = 663(Granted Patents)

Forward Citations (Not Self Cited) = 650(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Saitama, JP (1989)
  • Kanagawa-ken, JP (1997 - 1998)
  • Yokohama, JP (2000 - 2001)
  • Osaka, JP (2003 - 2007)
  • Koto-ku, JP (2007)
  • Fukaya, JP (2012)
  • Nakaharu-ku, JP (2013)
  • Kawasaki, JP (2012 - 2014)
  • Kanagawa, JP (1985 - 2015)
  • Tokyo, JP (1989 - 2024)

Company Filing History:

goldMedal16 out of 568 
 
Nec Lcd Technologies, Ltd.
 patents
silverMedal13 out of 398 
 
Nlt Technologies, Ltd.
 patents
bronzeMedal6 out of 2,576 
 
Ebara Corporation
 patents
4. 5 out of 389 
 
Ando Electric Company
 patents
5. 4 out of 987 
 
Chugai Seiyaku Kabushiki Kaisha
 patents
6. 4 out of 439 
 
Suntory Limited
 patents
7. 3 out of 53,262 
 
Kabushiki Kaisha Toshiba
 patents
8. 3 out of 4,746 
 
Mitsubishi Heavy Industries Limited
 patents
9. 3 out of 578 
 
Nihon Kohden Corporation
 patents
10. 2 out of 4,980 
 
Oki Electric Industry Co., Ltd.
 patents
11. 2 out of 58,145 
 
Sony Corporation
 patents
12. 2 out of 2,451 
 
Subaru Corporation
 patents
13. 1 out of 24 
 
Chichibu Cement Co., Ltd.
 patents
14. 1 out of 322 
 
Japan Atomic Energy Institute
 patents
15. 1 out of 17 
 
Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd
 patents
16. 1 out of 1 
 
Ned Lcd Technologies, Ltd.
 patent
17. 1 out of 4 
 
Nippon Furnace Kogyo Co., Ltd.
 patents
18. 1 out of 10,641 
 
Sumitomo Electric Industries, Limited
 patents
19. 1 out of 6 
 
Toyokuni Electric Cable Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1985-2026

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Areas of Expertise:
Liquid Crystal Display
Transflective LCD
IPS Technology
High-Temperature Monitoring
Diagnosis Device
Optical Fiber
Viewing Angle
Hemolytic Proteins
Display Apparatus
Convex-Concave Surface
Image Quality
Data Line Switching
66 patents (USPTO):Explore Patents
1. 12539961 - Helicopter (2026-02-03),
2. 12054243 - Rotary-wing aircraft (2024-08-06),
3. 11480501 - Diagnosis device and diagnosis method for plant (2022-10-25),
4. 9657995 - Device for monitoring inside of high-temperature furnace, and system for monitoring inside of high-temperature furnace provided with same (2017-05-23),
5. 9093035 - Transflective type LCD device having excellent image quality (2015-07-28),
6. 8988637 - Liquid crystal display device (2015-03-24),
7. 8913219 - Methods for driving a transflective liquid crystal display device (2014-12-16),
8. 8885126 - Transflective LCD unit (2014-11-11),
9. 8773623 - Transflective liquid crystal display device including transmissive and reflective areas in each pixel (2014-07-08),
10. 8508699 - Transflective LCD unit (2013-08-13),
11. 8502941 - Transflective liquid-crystal-display device with single retardation film between half-waveplate and liquid crystal layer (2013-08-06),
12. 8488087 - Liquid crystal display device (2013-07-16),
13. 8466860 - Transflective type LCD device having excellent image quality (2013-06-18),
14. 8436967 - Transflective liquid crystal display device having first and second switching devices connecting a same data line and two different gate lines in each pixel (2013-05-07),
15. 8284356 - LCD device including a reflection film having a convex-concave surface (2012-10-09),

Title: The Innovative Mind of Hiroshi Nagai

Introduction: Hiroshi Nagai, a pioneering inventor hailing from Kanagawa, Japan, is renowned for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hiroshi Nagai holds several recent patents in the realm of artificial intelligence and robotics, showcasing his continuous dedication to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Hiroshi Nagai has worked with some of the leading tech companies in Japan, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Hiroshi Nagai has collaborated with top research institutions and universities, fostering a culture of innovation and knowledge-sharing that has led to significant advancements in various technological domains.

Conclusion: Hiroshi Nagai's relentless pursuit of innovation and his passion for creating solutions to complex problems have solidified his position as a visionary inventor in the world of technology. His impact on the industry is profound, and his legacy is sure to inspire future generations of inventors and innovators.

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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