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Espec Kabushiki Kaisha

USPTO Granted Patents = 3

Trademarks = 1

Forward Citations = 65

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1 inventor (with patents filed for the assignee):

Osamu Matsuguma (3 out of 16 patents)

3 patents: Sort by Forward Citations

1. D602040 - Icon for a portion of a display screen (2009-10-13),

2. D602039 - Icon for a portion of a display screen (2009-10-13),

3. D599376 - Icon for a portion of a display screen (2009-09-01),

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USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#952 in Osaka

#8,932 in Japan

Espec Kabushiki Kaisha

Forward Citations = 65

1 inventor:

Osamu Matsuguma (3 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Espec Kabushiki Kaisha. Retrieved from https://idiyas.com/company/espec-kabushiki-kaisha

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]

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