For the Inventor, By the Inventor

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Seiko Epson Corportion

USPTO Granted Patents = 8

% Expired Patents = 12.5

Forward Citations = 134

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17 inventors (with patents filed for the assignee):

Tomohiro Sakai (1 out of 38 patents)

Kazuya Kitada (1 out of 43 patents)

Koji Sumi (1 out of 74 patents)

4. Harunobu Koike (1 out of 21 patents)

5. Koichi Morozumi (1 out of 32 patents)

6. Koya Shiratori (1 out of 32 patents)

7. Yoshikuni Saito (1 out of 13 patents)

8. Yusuke Kinoshita (1 out of 20 patents)

9. Jun Hoshii (1 out of 27 patents)

10. Tomoaki Miyashita (1 out of 37 patents)

11. Tatsuo Urushidani (1 out of 8 patents)

12. Keita Ito (1 out of 1 patent)

13. Hidekazu Hirabayashi (1 out of 9 patents)

14. Keiichi Noto (1 out of 2 patents)

15. Tsuyoshi Maeda (1 out of 93 patents)

8 patents: Sort by Forward Citations

1. 10608165 - Piezoelectric element and liquid ejecting head (2020-03-31),

2. 10263218 - Electro-optical device with a luminance adjustment layer (2019-04-16),

3. 10228269 - Sensor unit having an adhesive member connected to an outer edge of a sensor device and placed continuously in an area overlapping a sensor device (2019-03-12),

4. 8988683 - Food analysis device (2015-03-24),

5. 7551315 - Color matching accuracy under multiple printing conditions (2009-06-23),

6. 7455531 - Flexible board, electrooptic device having a flexible board, and electronic device (2008-11-25),

7. 6204898 - Liquid crystal display and electronic device (2001-03-20),

8. 5492420 - Tape printing device and tape cartridge used therein (1996-02-20),

Seiko Epson Corporation, commonly known as Epson, is a Japanese electronics company and one of the world's largest manufacturers of computer printers, and information and imaging related equipment. The company is also a leading manufacturer of factory automation equipment, precision products and other products. With a strong focus on innovation and sustainability, Epson strives to create products that exceed customer expectations while reducing its environmental impact.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

8 Patents

#2,145 in Tokyo

#5,035 in Japan

Seiko Epson Corportion

Forward Citations = 134

17 inventors:

Tomohiro Sakai (1 out of 38 patents)

Kazuya Kitada (1 out of 43 patents)

Koji Sumi (1 out of 74 patents)

4. Harunobu Koike (1 out of 21 patents)

5. Koichi Morozumi (1 out of 32 patents)

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