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Device Co., Ltd.

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USPTO Granted Patents = 7

% Expired Patents = 14.3

EPO Patents = 1

Forward Citations = 4

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5 inventors (with patents filed for the assignee):

Taek Youb Lee (5 out of 17 patents)

Yoshimichi Takada (2 out of 2 patents)

Hee Won Lee (2 out of 2 patents)

4. Jun Hwan Lee (1 out of 2 patents)

5. Man Je Bang (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 12521772 - Substrate treatment apparatus having heating part (2026-01-13),

2. 12506027 - Substrate treatment apparatus having heating part (2025-12-23),

3. 12502684 - Substrate treatment apparatus having heating part (2025-12-23),

4. 12465958 - Ultrasonic cleaning unit with improved cleaning performance, and substrate cleaning apparatus including the same (2025-11-11),

5. 12396103 - Device for etching the periphery edge of a substrate and method for controlling etching thereof (2025-08-19),

6. 10267087 - Intake-exhaust unit and double skin system using same (2019-04-23),

7. 9540862 - Inner glass skin structure for double glass skin (2017-01-10),

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USPTO Data Jan 1 1976 - Oct 27 2026

7 Patents

#2 in Mito

#5,460 in Japan

Device Co., Ltd.

Forward Citations = 4

5 inventors:

Taek Youb Lee (5 out of 17 patents)

Yoshimichi Takada (2 out of 2 patents)

Hee Won Lee (2 out of 2 patents)

4. Jun Hwan Lee (1 out of 2 patents)

5. Man Je Bang (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Device Co., Ltd.. Retrieved from https://idiyas.com/company/device-company

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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