Forward Citations = 100

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7 inventors (with patents filed for the assignee):

Serge Gasnier (2 out of 3 patents)

Kimio Ogura (2 out of 2 patents)

Abderrahim Abdelhadi (2 out of 2 patents)

4. Ernest M Hall (1 out of 12 patents)

5. Choro Kitsunezaki (1 out of 1 patent)

6. Fred W Hefer (1 out of 2 patents)

7. Jeffrey A Buis (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 5859533 - Process for the production of a supply current of a solenoid for a (1999-01-12),

2. 5650726 - Emitter for an electromagnetic tomography measurement system which (1997-07-22),

3. 5534668 - Deadweight dropping type wave source (1996-07-09),

4. 5416281 - Deadweight dropping type wave source (1995-05-16),

5. 4710593 - Geophone cable splice and method (1987-12-01),

6. 4594698 - Printed-circuit disc for stringing geophones (1986-06-10),

7. 4207961 - Exciting method for logging by S wave (1980-06-17),

Company Overview

Oyo Corporation is a global leader in manufacturing sensors and equipment for environmental measurement and analysis. With over 70 years of experience, Oyo offers a wide range of high-quality products for various industries, including automotive, aerospace, and medical. Their innovative solutions help customers improve efficiency, safety, and sustainability in their operations.

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

Oyo Corporation

Forward Citations = 100

7 inventors:

Serge Gasnier (2 out of 3 patents)

Kimio Ogura (2 out of 2 patents)

Abderrahim Abdelhadi (2 out of 2 patents)

4. Ernest M Hall (1 out of 12 patents)

5. Choro Kitsunezaki (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Oyo Corporation. Retrieved from https://idiyas.com/company/oyo

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]