Inventor

FUKAMI MASAAKI

JP5 patents

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

(unassigned)

2 patents

USD439611SMar 27, 2001

Double writing instrument

18 citations89

US6629798B1Oct 7, 2003

Pen

7 citations71

ALLCO KK

1 patent

US5342136AAug 30, 1994

Writing instrument with exchangeable ink refill

ALLCO KK54 citations88

WORLD ENG CORP

1 patent

USD403706SJan 5, 1999

Writing pen

WORLD ENG CORP17 citations86

TSUKASA FELT SHOJI KABUSHIKI K

1 patent

US6659671B1Dec 9, 2003

Ink introducing tube and writing instrument incorporated with the same

TSUKASA FELT SHOJI KABUSHIKI K11 citations68