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Sumio Oinuma

This inventor holds 6 USPTO granted patents. Top assignee: Tokai Rubber Industries, Ltd.. Active years: 1995-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sumio Oinuma. Retrieved from https://idiyas.com/inventor/sumio-oinuma

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 6

% Patents Active = 83.3

Average Co-Inventor Count = 5.7

ph-index = 4

Forward Citations = 29(Granted Patents)

Location History:

Tajimi, JP (1995 - 2000)
Gifu-ken, JP (2002)

Company Filing History:

Tokai Rubber Industries, Ltd.

Years Active: 1995-2002

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6491613 - Roller for office automation equipment (2002-12-10),

2. 6146320 - Conductive roll (2000-11-14),

3. 6096395 - Roll including foam body and method of producing the roll (2000-08-01),

4. 5604031 - Electrically conductive roll whose base layer is formed of (1997-02-18),

5. 5455077 - Method of producing a crowned resilient roll with coating layer (1995-10-03),

6. 5378525 - Crowned resilient roll with coating layer and method of producing the (1995-01-03),

Profile summary based on public USPTO records.

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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