This inventor holds 2 USPTO granted patents. Top assignees: Iri-E Kosan Corporation, Nippon Steel Corporation. Active years: 1978-1980.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadao Takashima. Retrieved from https://idiyas.com/inventor/tadao-takashima-y5nnelu5
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Calculating rank
% Patents Active = 100.0
Average Co-Inventor Count = 5.0
ph-index = 1
Forward Citations = 3(Granted Patents)
Location History:
- Oita, JA (1978)
- Oita, JP (1980)
Company Filing History:
2 out of 3 Iri-E Kosan Corporation
1 out of 3,724 Nippon Steel Corporation
where one patent can have more than one assignee
Years Active: 1978-1980
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2 patents (USPTO):Explore Patents
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]
IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadao Takashima. Retrieved from https://idiyas.com/inventor/tadao-takashima-y5nnelu5
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]
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]
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]
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]
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]