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Epson Imaging Devices Corporation

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USPTO Granted Patents = 169

% Expired Patents = 39.6

EPO Patents = 3

Forward Citations = 785

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141 inventors (with patents filed for the assignee):

Norio Koma (11 out of 56 patents)

Yutaka Kobashi (10 out of 31 patents)

Shin Fujita (8 out of 64 patents)

4. Daisuke Nakanishi (8 out of 29 patents)

5. Tatsumi Okuda (8 out of 17 patents)

6. Hideki Kaneko (7 out of 76 patents)

7. Takashi Toya (7 out of 9 patents)

8. Yasuo Segawa (6 out of 45 patents)

9. Kenji Tanase (6 out of 35 patents)

10. Kazunobu Mameno (6 out of 8 patents)

11. Manabu Takemoto (6 out of 6 patents)

12. Hiroyuki Horibata (6 out of 12 patents)

13. Shinichiro Tanaka (6 out of 19 patents)

14. Yasunori Onishi (5 out of 49 patents)

15. Tomohide Onogi (5 out of 50 patents)

Core Competencies:

Electro-Optical Device

Liquid Crystal Display

Illumination System

Semiconductor Circuit

Driving Circuit

Touch Panel

Image Pickup Device

Display Device

Transflective Display

Backlight Unit

Memory Circuit

Mounting Structure

169 patents: Sort by Forward Citations

1. 9495902 - Electro-optical device having a plurality of subpixel electrodes within a single display element (2016-11-15),

2. 9357612 - Display device (2016-05-31),

3. 9262985 - Semiconductor circuit, driving circuit of electro-optical device, and electronic apparatus (2016-02-16),

4. 9207493 - Electronic apparatus (2015-12-08),

5. 8970104 - Display device (2015-03-03),

6. 8866797 - Display device with position detecting function and electronic apparatus (2014-10-21),

7. 8841837 - Display device (2014-09-23),

8. 8833957 - Illumination system, electro-optic device, and electronic apparatus (2014-09-16),

9. 8698704 - Electro-optical device having parallax barrier system (2014-04-15),

10. 8698703 - Electro-optical device having parallax barrier system (2014-04-15),

11. 8654101 - Position detecting device and electro-optical device (2014-02-18),

12. 8628205 - Backlight unit, electro-optical device, and electronic apparatus (2014-01-14),

13. 8558778 - Shift register, scanning-line drive circuit, data-line drive circuit, electro-optical device, and electronic apparatus (2013-10-15),

14. 8552935 - Semiconductor circuit, driving circuit of electro-optical device, and electronic apparatus (2013-10-08),

15. 8537152 - Semiconductor circuit, driving circuit of electro-optical device, and electronic apparatus (2013-09-17),

Company Overview

Epson Imaging Devices Corporation specializes in the development and manufacturing of advanced electro-optical devices. The company focuses on a range of core technologies, including liquid crystal displays, illumination systems, semiconductor circuits, and driving circuits. Additionally, it is involved in the innovation of touch panels and image pickup devices, contributing to various applications in display technology. Based in Japan, Epson Imaging Devices Corporation is recognized for its commitment to quality and technological advancement in the electro-optical field.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 10 2026

169 Patents

#6 in

#791 in Japan

#4,891 in the World

Epson Imaging Devices Corporation

Forward Citations = 785

141 inventors:

Norio Koma (11 out of 56 patents)

Yutaka Kobashi (10 out of 31 patents)

Shin Fujita (8 out of 64 patents)

4. Daisuke Nakanishi (8 out of 29 patents)

5. Tatsumi Okuda (8 out of 17 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Epson Imaging Devices Corporation. Retrieved from https://idiyas.com/company/epson-imaging-devices

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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