Inventor · disambiguated record
Masaru Muranaka
Also filed as: MURANAKA MASARU
3 granted patents·58 citations·filing 1999–2007
72Inventor score
Technology areasB66B
Top patents by PatentIndex Score
3 records- 0176US6679353B1Stair-climbing chair systemKUMALIFT CO LTD·Filed 2000·Granted Jan 20, 2004·25 cites·5 claims
- 0263US6332512B1Chair type stair elevating deviceKUMALIFT CO LTD·Filed 1999·Granted Dec 25, 2001·26 cites·10 claims
- 0340USD599256SStair-climbing chairKUMALIFT ENGINEERING LAB CO LT·Filed 2007·Granted Sep 1, 2009·7 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →