Inventor
OZONE TOSHIO
JP7 patents
⚠️ This page may combine multiple inventors who share the name “OZONE TOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AICHI STEEL WORKS LTD
6 patentsUS5009843AApr 23, 1991
Spring steel having good durability and sag-resistance
AICHI STEEL WORKS LTD31 citations91
US4770721ASep 13, 1988
Process of treating steel for a vehicle suspension spring to improve sag-resistance
AICHI STEEL WORKS LTD30 citations91
US4544406AOct 1, 1985
Spring steel having a good sag-resistance and a good hardenability
AICHI STEEL WORKS LTD23 citations81
US4448617AMay 15, 1984
Steel for a vehicle suspension spring having good sag-resistance
AICHI STEEL WORKS LTD15 citations81
US4711675ADec 8, 1987
Process for improving the sag-resistance and hardenability of a spring steel
AICHI STEEL WORKS LTD9 citations72
US4574016AMar 4, 1986
Method of treating steel for a vehicle suspension spring having a good sag-resistance
AICHI STEEL WORKS LTD9 citations72