% Expired Patents = 85.7

Forward Citations = 2

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9 inventors (with patents filed for the assignee):

Seisei Oyamada (3 out of 10 patents)

Naoya Tohyama (2 out of 2 patents)

Makoto Kurihara (1 out of 5 patents)

4. Shinichi Maeda (1 out of 1 patent)

5. Katsuhiko Iwase (1 out of 1 patent)

6. Takuya Inoue (1 out of 1 patent)

7. Kouichi Kumagai (1 out of 1 patent)

8. Takaha Kunieda (1 out of 1 patent)

9. Kenji Yoshida (1 out of 21 patents)

7 patents: Sort by Forward Citations

1. 9715568 - Wiring length measurement apparatus and recording media (2017-07-25),

2. 9159271 - Illumination device and liquid crystal display device (2015-10-13),

3. 8610141 - Three-dimensional LED substrate and LED lighting device (2013-12-17),

4. 8299518 - Semiconductor device and bypass capacitor module (2012-10-30),

5. 8243245 - BSC macrostructure for three-dimensional wiring and substrate having the BSC macrostructure (2012-08-14),

6. 8089005 - Wiring structure of a substrate (2012-01-03),

7. 7683492 - Semiconductor device (2010-03-23),

Company Overview

Liquid Design Systems Inc. is a leading design and engineering firm specializing in innovative product development. With a team of talented designers and engineers, we offer a range of services from concept ideation to prototyping and manufacturing. Our client-centric approach ensures that we deliver high-quality solutions that exceed expectations. Visit our website to learn more about our services and portfolio.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

7 Patents

#103 in Yokohama

#5,459 in Japan

Yokohama, Japan

Liquid Design Systems Inc.

Forward Citations = 2

9 inventors:

Seisei Oyamada (3 out of 10 patents)

Naoya Tohyama (2 out of 2 patents)

Makoto Kurihara (1 out of 5 patents)

4. Shinichi Maeda (1 out of 1 patent)

5. Katsuhiko Iwase (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Liquid Design Systems Inc.. Retrieved from https://idiyas.com/company/liquid-design-systems

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]