Inventor · disambiguated record
Hirofumi Niitsuma
Also filed as: NIITSUMA HIROFUMI
3 granted patents·1 pending application·42 citations·filing 1990–2008
65Inventor score
Top patents by PatentIndex Score
4 records- 0161US8476542B2Input deviceHAGIWARA YASUJI·Filed 2008·Granted Jul 2, 2013·5 cites·4 claims
- 0254US5164712AX-Y direction input deviceALPS ELECTRIC CO LTD·Filed 1990·Granted Nov 17, 1992·37 cites·4 claims
- 0344US7414612B2Analog input deviceALPS ELECTRIC CO LTD·Filed 2004·Granted Aug 19, 2008·0 cites·4 claims
- 0439US2003103035A1Computer with slidable built-in unitALPS ELECTRIC CO LTD·Filed 2002·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →