Inventor
SAYAMA HIRONOBU
JP7 patents
⚠️ This page may combine multiple inventors who share the name “SAYAMA HIRONOBU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI STEEL MFG
4 patentsUS9770957B2Sep 26, 2017
Suspension coil spring and strut type suspension
MITSUBISHI STEEL MFG6 citations70
US10987779B2Apr 27, 2021
Hollow spring and manufacturing method thereof
MITSUBISHI STEEL MFG0 citations59
US12135068B2Nov 5, 2024
Hollow spring and method of manufacturing the same
MITSUBISHI STEEL MFG0 citations48
US10300756B2May 28, 2019
Suspension coil spring
MITSUBISHI STEEL MFG0 citations38