% Expired Patents = 14.3

Forward Citations = 41

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7 inventors (with patents filed for the assignee):

Chingchi Yao (4 out of 8 patents)

Chung-Jen Chien (3 out of 8 patents)

Horia Giuroiu (2 out of 13 patents)

4. Thomas Chao (1 out of 4 patents)

5. Katsutoshi Saeki (1 out of 6 patents)

6. Yoshitaka Satou (1 out of 3 patents)

7. Poucheng Wang (1 out of 2 patents)

7 patents: Sort by Forward Citations

1. 7863690 - Semiconductor device (2011-01-04),

2. 6377085 - Precision bias for an transconductor (2002-04-23),

3. 6344769 - Precision differential switched current source (2002-02-05),

4. 6215701 - Nonvolatile memory cell structure for integration with semiconductor logic devices and method of using same (2001-04-10),

5. 6201725 - Nonvolatile memory cell structure for integration with semiconductor logic devices and method of using same (2001-03-13),

6. 6097048 - Dynamic random access memory cell suitable for integration with (2000-08-01),

7. 5646548 - Efficient method and resulting structure for integrated circuits with (1997-07-08),

Company Overview

Oki Semiconductor, Ltd. is a leading supplier of integrated circuits and semiconductor solutions for various industries including automotive, telecommunications, and consumer electronics. With a strong focus on innovation and quality, Oki Semiconductor provides cutting-edge technology to meet the evolving needs of their customers worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#2,287 in Tokyo

#5,456 in Japan

Tokyo, Japan

Oki Semiconductor, Ltd.

Forward Citations = 41

7 inventors:

Chingchi Yao (4 out of 8 patents)

Chung-Jen Chien (3 out of 8 patents)

Horia Giuroiu (2 out of 13 patents)

4. Thomas Chao (1 out of 4 patents)

5. Katsutoshi Saeki (1 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Oki Semiconductor, Ltd.. Retrieved from https://idiyas.com/company/oki-semiconductor

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]