% Expired Patents = 100.0

EPO Patents = 1

Forward Citations = 22

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6 inventors (with patents filed for the assignee):

Ryuichi Shimada (4 out of 10 patents)

Taku Takaku (2 out of 3 patents)

Takanori Isobe (1 out of 14 patents)

4. Shiro Fukuda (1 out of 1 patent)

5. Naoto Kojima (1 out of 13 patents)

6. Hideo Sumitani (1 out of 1 patent)

7. Ryuichi Tokyo Institute Of Technology Shimada (0 patent)

8. Taku Tokyo Institute Of Technology Takaku (0 patent)

6 patents: Sort by Forward Citations

1. 8482945 - Power converter with magnetic recovery switch (2013-07-09),

2. 8384333 - Alternating voltage control apparatus (2013-02-26),

3. 8274767 - Magnetic energy regeneration switch provided with protection circuit (2012-09-25),

4. 8045309 - Magnetic energy recovery switch having protective circuit (2011-10-25),

5. 7919887 - High repetitous pulse generation and energy recovery system (2011-04-05),

6. 7843166 - Alternating-current power supply device recovering magnetic energy (2010-11-30),

Company Overview

Merstech, Inc. is a leading technology company specializing in cutting-edge solutions for businesses. With a focus on innovation and excellence, Merstech offers a wide range of services including software development, digital marketing, and IT consulting. Their team of experienced professionals is dedicated to delivering high-quality results that meet the unique needs of each client. Visit their website to learn more about how Merstech can help your business thrive in today's competitive market.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#2,469 in Tokyo

#5,989 in Japan

Tokyo, Japan

Merstech, Inc.

Forward Citations = 22

6 inventors:

Ryuichi Shimada (4 out of 10 patents)

Taku Takaku (2 out of 3 patents)

Takanori Isobe (1 out of 14 patents)

4. Shiro Fukuda (1 out of 1 patent)

5. Naoto Kojima (1 out of 13 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Merstech, Inc.. Retrieved from https://idiyas.com/company/merstech

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]

1 patent (EPO):

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]