Inventor
SASAKI KAZUHIKO
JP13 patents
⚠️ This page may combine multiple inventors who share the name “SASAKI KAZUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PILOT KK
5 patentsUSD440601SApr 17, 2001
Ball-point pen
PILOT KK24 citations91
US5984559ANov 16, 1999
Ballpoint pen refill and fabrication method thereof
PILOT KK32 citations89
US6305865B1Oct 23, 2001
Push button type ballpoint pen
PILOT KK15 citations83
US6062756AMay 16, 2000
Push-button writing instrument
PILOT KK12 citations72
US6302609B1Oct 16, 2001
Ballpoint pen refill
PILOT KK1 citations51