Inventor
WAKITA MASAMI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “WAKITA MASAMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHUO HATSUJO KK
7 patentsUS6224686B1May 1, 2001
High-strength valve spring and it's manufacturing method
CHUO HATSUJO KK33 citations92
US6193816B1Feb 27, 2001
Spring with corrosion fatigue strength
CHUO HATSUJO KK32 citations92
US7699943B2Apr 20, 2010
Method for manufacturing high-strength spring
CHUO HATSUJO KK17 citations83
US8349095B2Jan 8, 2013
Spring steel and spring having superior corrosion fatigue strength
CHUO HATSUJO KK5 citations82
US7776440B2Aug 17, 2010
Spring coated with powder coating of epoxy resin and thermoplastic resin
CHUO HATSUJO KK10 citations82
US7407555B2Aug 5, 2008
Oil tempered wire for cold forming coil springs
CHUO HATSUJO KK14 citations82
US7013236B2Mar 14, 2006
Methods and apparatus for calculating routing arrangements for control cables
CHUO HATSUJO KK6 citations57
KUNO TAKANORI
3 patentsUS8328169B2Dec 11, 2012
Spring steel and spring having superior corrosion fatigue strength
KUNO TAKANORI7 citations80
US8789817B2Jul 29, 2014
Spring steel and spring having superior corrosion fatigue strength
KUNO TAKANORI0 citations48
US9068615B2Jun 30, 2015
Spring having excellent corrosion fatigue strength
KUNO TAKANORI0 citations47