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Seigo Hasunuma

This inventor holds 8 USPTO granted patents. Top assignee: Hosiden Corporation. Active years: 1998-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seigo Hasunuma. Retrieved from https://idiyas.com/inventor/seigo-hasunuma

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

USPTO Granted Patents = 8

% Patents Active = 62.5

Average Co-Inventor Count = 1.5

ph-index = 6

Forward Citations = 124(Granted Patents)

Location History:

Nitta-gun, JP (1998 - 2000)
Gunma, JP (1998 - 2006)

Company Filing History:

Hosiden Corporation

Years Active: 1998-2006

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7097371 - Keytop (2006-08-29),

2. 6657139 - Keyboard (2003-12-02),

3. 6504121 - Keyboard switch having leg dislodgement preventing mechanism (2003-01-07),

4. 6068416 - Keyboard switch (2000-05-30),

5. 5912443 - Membrane type keyboard with improved multiple key arrangement (1999-06-15),

6. 5799772 - Pantograph type keyboard switch (1998-09-01),

7. 5763841 - Membrane type keyboard with improved multiple key arrangement (1998-06-09),

8. 5758763 - Pantograph type keyboard switch (1998-06-02),

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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