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Katsushi Umezawa

This inventor holds 8 USPTO granted patents. Top assignee: Usui Kokusai Sangyo Kaisha Limited. Active years: 1994-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsushi Umezawa. Retrieved from https://idiyas.com/inventor/katsushi-umezawa

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

Calculating rank

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 7

Forward Citations = 108(Granted Patents)

Company Filing History:

Usui Kokusai Sangyo Kaisha Limited

Years Active: 1994-1998

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5749138 - Connecting and fixing method for metallic pipes with small diameter (1998-05-12),

2. 5580100 - Connecting joint for plastic tube (1996-12-03),

3. 5575512 - Pipe joint (1996-11-19),

4. 5492376 - Connecting and fixing method for metallic pipes with small diameter (1996-02-20),

5. 5437483 - Flexible hose joint (1995-08-01),

6. 5328216 - Thin pipe connecting joint (1994-07-12),

7. 5324081 - Connector for pipes having a small diameter (1994-06-28),

8. 5314216 - Thin resin tube connecting coupling with flanged insert (1994-05-24),

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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