Inventor
ICHIKAWA TAKAFUMI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “ICHIKAWA TAKAFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOKAI RIKA CO LTD
6 patentsUS4674352AJun 23, 1987
Steering wheel device
TOKAI RIKA CO LTD21 citations81
US4768394ASep 6, 1988
Steering wheel device
TOKAI RIKA CO LTD7 citations73
US5107248AApr 21, 1992
Oil-pressure warning apparatus for automobiles
TOKAI RIKA CO LTD8 citations71
US5229745AJul 20, 1993
Oil pressure alarm device for motor vehicle
TOKAI RIKA CO LTD13 citations65
US4742727AMay 10, 1988
Steering wheel device
TOKAI RIKA CO LTD3 citations62
US4630501ADec 23, 1986
Steering switch pad apparatus
TOKAI RIKA CO LTD5 citations61