Inventor · disambiguated record
Masaaki Umezawa
Also filed as: UMEZAWA MASAAKI
3 granted patents·144 citations·filing 1991–2016
71Inventor score
Top patents by PatentIndex Score
3 records- 0181US5142573ATelephone apparatus for radio communication with an adaptorOKI ELECTRIC IND CO LTD·Filed 1991·Granted Aug 25, 1992·119 cites·12 claims
- 0271US6208223B1Receiving filter of a saw separator with greater electrode interdigitated width in first stage parallel resonatorOKI ELECTRIC IND CO LTD·Filed 1998·Granted Mar 27, 2001·25 cites·14 claims
- 0344US9798098B2Optical moduleFUJIKURA LTD·Filed 2016·Granted Oct 24, 2017·0 cites·13 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →