Inventor
USUI KIYOFUMI
JP7 patents
⚠️ This page may combine multiple inventors who share the name “USUI KIYOFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
4 patentsUS6238042B1May 29, 2001
Ink cartridge for ink jet printer and method of charging ink into said cartridge
SEIKO EPSON CORP130 citations98
US6247803B1Jun 19, 2001
Ink jet recording apparatus and method for replenishing ink in the tank cartridge
SEIKO EPSON CORP137 citations97
US6854835B2Feb 15, 2005
Ink cartridge for ink jet printer and method of charging ink into said cartridge
SEIKO EPSON CORP25 citations92
US6655779B2Dec 2, 2003
Judgement on compatibility between ink cartridges and printing apparatus
SEIKO EPSON CORP29 citations89