Inventor · disambiguated record
Seigo Hasunuma
Also filed as: HASUNUMA SEIGO
8 granted patents·237 citations·filing 1996–2004
89Inventor score
Files withHOSIDEN CORP8
Top patents by PatentIndex Score
8 records- 0191US6068416AKeyboard switchHOSIDEN CORP·Filed 1999·Granted May 30, 2000·83 cites·14 claims
- 0283US5912443AMembrane type keyboard with improved multiple key arrangementHOSIDEN CORP·Filed 1998·Granted Jun 15, 1999·38 cites·4 claims
- 0375US6657139B2KeyboardHOSIDEN CORP·Filed 2002·Granted Dec 2, 2003·20 cites·10 claims
- 0474US5799772APantograph type keyboard switchHOSIDEN CORP·Filed 1997·Granted Sep 1, 1998·26 cites·16 claims
- 0572US5758763APantograph type keyboard switchHOSIDEN CORP·Filed 1996·Granted Jun 2, 1998·25 cites·13 claims
- 0671US6504121B2Keyboard switch having leg dislodgement preventing mechanismHOSIDEN CORP·Filed 2001·Granted Jan 7, 2003·18 cites·8 claims
- 0765US7097371B2KeytopHOSIDEN CORP·Filed 2004·Granted Aug 29, 2006·13 cites·6 claims
- 0842US5763841AMembrane type keyboard with improved multiple key arrangementHOSIDEN CORP·Filed 1996·Granted Jun 9, 1998·14 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →