% Expired Patents = 25.0

Forward Citations = 8

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4 inventors (with patents filed for the assignee):

Makoto Takamura (1 out of 10 patents)

Hiroshi Tanaka (1 out of 29 patents)

Naotaro Nakata (1 out of 24 patents)

4. Masaya Imamura (1 out of 15 patents)

4 patents: Sort by Forward Citations

1. 7420326 - Organic electroluminescent display element and manufacturing method thereof (2008-09-02),

2. 7388823 - Optical pickup, manufacturing method thereof, and optical disk system (2008-06-17),

3. 6121589 - Heating device for sheet material (2000-09-19),

4. 5825510 - Image sensor and facsimile apparatus incorporating the same (1998-10-20),

Company Overview

Rhom Co., Ltd. is a leading technology company specializing in innovative solutions for the healthcare industry. With a focus on developing cutting-edge medical devices and equipment, Rhom is committed to improving patient outcomes and advancing healthcare practices. With a strong emphasis on research and development, Rhom strives to drive innovation and shape the future of healthcare.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#204 in Kyoto 615-0031

#7,573 in Japan

Kyoto, Japan

Rhom Co., Ltd.

Forward Citations = 8

4 inventors:

Makoto Takamura (1 out of 10 patents)

Hiroshi Tanaka (1 out of 29 patents)

Naotaro Nakata (1 out of 24 patents)

4. Masaya Imamura (1 out of 15 patents)

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