Inventor
HAMADA AKIHIKO
JP33 patents
⚠️ This page may combine multiple inventors who share the name “HAMADA AKIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO RUBBER IND
31 patentsUS5490674AFeb 13, 1996
Three-piece solid golf ball
SUMITOMO RUBBER IND260 citations99
US6277924B1Aug 21, 2001
Solid golf ball
SUMITOMO RUBBER IND84 citations98
US5156405AOct 20, 1992
Golf ball
SUMITOMO RUBBER IND130 citations97
US5565524AOct 15, 1996
Golf ball
SUMITOMO RUBBER IND56 citations96
US5082285AJan 21, 1992
Solid golf ball
SUMITOMO RUBBER IND73 citations96
US4679794AJul 14, 1987
Golf ball
SUMITOMO RUBBER IND77 citations96
US5861465AJan 19, 1999
Thread rubber for golf balls
SUMITOMO RUBBER IND68 citations95
US4929678AMay 29, 1990
Rubber composition and a solid golf ball obtained therefrom
SUMITOMO RUBBER IND100 citations95
US4871589AOct 3, 1989
Method of coating a golf ball
SUMITOMO RUBBER IND62 citations94
US6255382B1Jul 3, 2001
Coated golf ball
SUMITOMO RUBBER IND21 citations93
US5679745AOct 21, 1997
Golf ball
SUMITOMO RUBBER IND49 citations93
US5625003AApr 29, 1997
Golf ball
SUMITOMO RUBBER IND42 citations93
US5508351AApr 16, 1996
Golf ball
SUMITOMO RUBBER IND28 citations93
US5367028ANov 22, 1994
Golf ball
SUMITOMO RUBBER IND33 citations93
US5359000AOct 25, 1994
Golf ball
SUMITOMO RUBBER IND46 citations93
US6864305B2Mar 8, 2005
Puncture sealing agent for a tire, and process for producing the same
SUMITOMO RUBBER IND21 citations92
US6462159B1Oct 8, 2002
Cationic deproteinized natural rubber latex, method of preparing the same, and treating agent used in the method
SUMITOMO RUBBER IND32 citations92
US5981649ANov 9, 1999
Rubber composition for grips of articles containing EPDM and grip made thereof
SUMITOMO RUBBER IND18 citations92
US5967907AOct 19, 1999
Multi-piece solid golf ball
SUMITOMO RUBBER IND47 citations92
US5833552ANov 10, 1998
Golf ball
SUMITOMO RUBBER IND45 citations92
US5816939AOct 6, 1998
Wound golf ball and rubber thread therefore
SUMITOMO RUBBER IND27 citations92
US5543467AAug 6, 1996
Golf ball
SUMITOMO RUBBER IND55 citations92
US5340112AAug 23, 1994
Thread wound golf ball
SUMITOMO RUBBER IND25 citations92
US5215308AJun 1, 1993
Solid golf ball
SUMITOMO RUBBER IND38 citations92
US6344499B1Feb 5, 2002
Puncture sealing agent
SUMITOMO RUBBER IND25 citations91
US6063837AMay 16, 2000
Puncture sealing agent
SUMITOMO RUBBER IND30 citations91
US6512034B1Jan 28, 2003
Cationic graft-modified natural rubber latex
SUMITOMO RUBBER IND18 citations84
US5849392ADec 15, 1998
Thread wound golf ball
SUMITOMO RUBBER IND18 citations84
US6265479B1Jul 24, 2001
Deproteinizing agent and method of preparing cationic deproteinized natural rubber latex using the same
SUMITOMO RUBBER IND10 citations74
USRE35293EJul 9, 1996
Solid golf ball
SUMITOMO RUBBER IND13 citations74
US5346223ASep 13, 1994
Thread wound golf ball
SUMITOMO RUBBER IND11 citations74