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Nec Lighting, Ltd.

USPTO Granted Patents = 47

% Expired Patents = 29.8

EPO Patents = 8

Forward Citations = 84

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28 inventors (with patents filed for the assignee):

Yoshikazu Sakaguchi (21 out of 62 patents)

Shusaku Kon (5 out of 5 patents)

Katsuyuki Okimura (5 out of 6 patents)

4. Norimasa Mizobe (3 out of 31 patents)

5. Yoshinori Ueji (3 out of 4 patents)

6. Toshiya Iwakiri (2 out of 2 patents)

7. Yasushi Aoki (2 out of 43 patents)

8. Yasuki Kawashima (2 out of 2 patents)

9. Maki Minamoto (2 out of 8 patents)

10. Akimichi Morita (1 out of 4 patents)

11. Kazuhiro Nagao (1 out of 2 patents)

12. Tatsuya Takahashi (1 out of 4 patents)

13. Shin Tanaka (1 out of 16 patents)

14. Shigeki Taniguchi (1 out of 1 patent)

15. Kazuya Ito (1 out of 10 patents)

Core Competencies:

Organic EL Device

Electroluminescent Lighting

Lighting Equipment

Manufacturing Method

Transparent Substrate

Light-Emitting Element

Illumination Device

Organic EL Panel

Fluorescent Lamp

47 patents: Sort by Forward Citations

1. 10458606 - Organic EL device (2019-10-29),

2. 10403856 - Organic EL panel having substrate comprising light incident section and light guide section (2019-09-03),

3. D855853 - Main body of lighting equipment (2019-08-06),

4. 10270058 - Organic electroluminescent illumination panel, manufacturing method thereof, and organic electroluminescent illumination device (2019-04-23),

5. 10270048 - Organic EL panel translucent substrate, control method for refractive index anisotrophy of organic EL panel translucent substrate, manufacturing method for organic EL panel translucent substrate, organic EL panel, and organic EL device (2019-04-23),

6. 10249842 - Organic EL device, organic EL lighting panel, organic EL lighting apparatus, and organic EL display (2019-04-02),

7. 10205127 - Organic EL panel-use transparent resin layer, organic EL panel, organic EL lighting device, and organic EL display (2019-02-12),

8. 10088604 - Transparent substrate for optical elements, polarizer plate for liquid crystal display device using said substrate, and organic electroluminescence element (2018-10-02),

9. D821025 - Lighting equipment (2018-06-19),

10. D821013 - Lighting equipment (2018-06-19),

11. 9966555 - Organic EL lighting panel substrate, method for manufacturing organic EL lighting panel substrate, organic EL lighting panel, and organic EL lighting device (2018-05-08),

12. 9960382 - Organic electroluminescence element, display panel, and method for manufacturing organic electroluminescence element (2018-05-01),

13. 9936560 - Organic EL panel control device, light source device, organic EL panel control method, program, and recording medium (2018-04-03),

14. 9912851 - Image-capturing device, organic el element, image-capturing method, program, and recording medium (2018-03-06),

15. 9741933 - Method for repairing organic EL element, method for manufacturing organic EL panel, and light-emitting device (2017-08-22),

Company Overview

NEC Lighting, Ltd., based in Tokyo, specializes in the development and manufacturing of advanced organic electroluminescent (EL) lighting technologies. The company focuses on innovative solutions such as organic EL devices, lighting panels, and failure detection systems for light-emitting elements. With a commitment to enhancing lighting equipment through cutting-edge manufacturing methods and the use of transparent substrates, NEC Lighting is at the forefront of the organic lighting industry, contributing to energy-efficient and sustainable lighting solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

47 Patents

#824 in Tokyo

#1,775 in Japan

#14,803 in the World

Nec Lighting, Ltd.

Forward Citations = 84

28 inventors:

Yoshikazu Sakaguchi (21 out of 62 patents)

Shusaku Kon (5 out of 5 patents)

Katsuyuki Okimura (5 out of 6 patents)

4. Norimasa Mizobe (3 out of 31 patents)

5. Yoshinori Ueji (3 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nec Lighting, Ltd.. Retrieved from https://idiyas.com/company/nec-lighting

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

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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