Inventor

UMEMURA MASAMI

JP4 patents

⚠️ This page may combine multiple inventors who share the name “UMEMURA MASAMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOKAI RIKEN CO LTD

2 patents

US9053592B2Jun 9, 2015

Key management box

TOKAI RIKEN CO LTD2 citations55

US10521990B2Dec 31, 2019

Digital key system

TOKAI RIKEN CO LTD0 citations34

ISOWA KK

1 patent

US6648042B2Nov 18, 2003

Load-applying device for a double facer

ISOWA KK2 citations59

SATO AKIHIRO

1 patent

US8248206B2Aug 21, 2012

Key management box

SATO AKIHIRO4 citations53