Inventor
YAMAGUCHI RYUJI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “YAMAGUCHI RYUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOKAI RIKA CO LTD
5 patentsUS12414612B2Sep 16, 2025
Buckle device
TOKAI RIKA CO LTD0 citations62
US12024116B2Jul 2, 2024
Buckle device
TOKAI RIKA CO LTD1 citations62
US11987205B2May 21, 2024
Buckle device
TOKAI RIKA CO LTD1 citations62
US11819092B2Nov 21, 2023
Buckle device
TOKAI RIKA CO LTD1 citations61
US12275369B2Apr 15, 2025
Buckle device
TOKAI RIKA CO LTD0 citations52
TOYOTA MOTOR CO LTD
3 patentsUS6825469B2Nov 30, 2004
Vehicle visibility assist device and method
TOYOTA MOTOR CO LTD17 citations83
US7656423B2Feb 2, 2010
Imaging device and visual recognition support system employing imaging device
TOYOTA MOTOR CO LTD4 citations61
US7045759B2May 16, 2006
Night vision system and control method thereof
TOYOTA MOTOR CO LTD3 citations60
JP STEEL PLANTECH CO
3 patentsUS6693948B2Feb 17, 2004
Apparatus for arc-melting cold iron source and method thereof
JP STEEL PLANTECH CO6 citations70
US6597722B2Jul 22, 2003
Apparatus for arc-melting cold iron source and method thereof
JP STEEL PLANTECH CO6 citations70
US11454568B2Sep 27, 2022
Gas component measuring device
JP STEEL PLANTECH CO0 citations39