Inventor

UMETANI HIROFUMI

JP2 patents

⚠️ This page may combine multiple inventors who share the name “UMETANI HIROFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GS YUASA CORP

1 patent

US7022433B2Apr 4, 2006

Negative active material, method of manufacturing its material, and lead acid battery

GS YUASA CORP2 citations51

NAKAYAMA YASUHIDE

1 patent

US8980467B2Mar 17, 2015

Storage battery

NAKAYAMA YASUHIDE0 citations33