Inventor · disambiguated record
Akihiko Hamada
Also filed as: HAMADA AKIHIKO
32 granted patents·1 pending application·1,564 citations·filing 1985–2003
98Inventor score
Top patents by PatentIndex Score
33 records- 0197US5490674AThree-piece solid golf ballSUMITOMO RUBBER IND·Filed 1994·Granted Feb 13, 1996·260 cites·3 claims
- 0296US4929678ARubber composition and a solid golf ball obtained therefromSUMITOMO RUBBER IND·Filed 1988·Granted May 29, 1990·100 cites·16 claims
- 0395US6277924B1Solid golf ballSUMITOMO RUBBER IND·Filed 1995·Granted Aug 21, 2001·84 cites·3 claims
- 0493US5156405AGolf ballSUMITOMO RUBBER IND·Filed 1988·Granted Oct 20, 1992·130 cites·13 claims
- 0591US6462159B1Cationic deproteinized natural rubber latex, method of preparing the same, and treating agent used in the methodSUMITOMO RUBBER IND·Filed 2000·Granted Oct 8, 2002·32 cites·6 claims
- 0687US5543467AGolf ballSUMITOMO RUBBER IND·Filed 1994·Granted Aug 6, 1996·55 cites·4 claims
- 0787US5359000AGolf ballSUMITOMO RUBBER IND·Filed 1992·Granted Oct 25, 1994·46 cites·9 claims
- 0886US5215308ASolid golf ballSUMITOMO RUBBER IND·Filed 1991·Granted Jun 1, 1993·38 cites·8 claims
- 0986US4679794AGolf ballSUMITOMO RUBBER IND·Filed 1985·Granted Jul 14, 1987·77 cites·7 claims
- 1085US6344499B1Puncture sealing agentSUMITOMO RUBBER IND·Filed 2000·Granted Feb 5, 2002·25 cites·7 claims
- 1185US5082285ASolid golf ballSUMITOMO RUBBER IND·Filed 1990·Granted Jan 21, 1992·73 cites·8 claims
- 1283US6864305B2Puncture sealing agent for a tire, and process for producing the sameSUMITOMO RUBBER IND·Filed 2002·Granted Mar 8, 2005·21 cites·7 claims
- 1383US6512034B1Cationic graft-modified natural rubber latexSUMITOMO RUBBER IND·Filed 2000·Granted Jan 28, 2003·18 cites·6 claims
- 1483US5833552AGolf ballSUMITOMO RUBBER IND·Filed 1997·Granted Nov 10, 1998·45 cites·15 claims
- 1582US4871589AMethod of coating a golf ballSUMITOMO RUBBER IND·Filed 1988·Granted Oct 3, 1989·62 cites·3 claims
- 1681US5861465AThread rubber for golf ballsSUMITOMO RUBBER IND·Filed 1997·Granted Jan 19, 1999·68 cites·15 claims
- 1780US5565524AGolf ballSUMITOMO RUBBER IND·Filed 1994·Granted Oct 15, 1996·56 cites·8 claims
- 1878US6265479B1Deproteinizing agent and method of preparing cationic deproteinized natural rubber latex using the sameSUMITOMO RUBBER IND·Filed 2000·Granted Jul 24, 2001·10 cites·5 claims
- 1976US5508351AGolf ballSUMITOMO RUBBER IND·Filed 1993·Granted Apr 16, 1996·28 cites·3 claims
- 2075US5679745AGolf ballSUMITOMO RUBBER IND·Filed 1995·Granted Oct 21, 1997·49 cites·3 claims
- 2174US5967907AMulti-piece solid golf ballSUMITOMO RUBBER IND·Filed 1997·Granted Oct 19, 1999·47 cites·12 claims
- 2272US6063837APuncture sealing agentSUMITOMO RUBBER IND·Filed 1997·Granted May 16, 2000·30 cites·8 claims
- 2372US5625003AGolf ballSUMITOMO RUBBER IND·Filed 1993·Granted Apr 29, 1997·42 cites·18 claims
- 2466US5981649ARubber composition for grips of articles containing EPDM and grip made thereofSUMITOMO RUBBER IND·Filed 1993·Granted Nov 9, 1999·18 cites·18 claims
- 2565US5367028AGolf ballSUMITOMO RUBBER IND·Filed 1992·Granted Nov 22, 1994·33 cites·13 claims
- 2659US5849392AThread wound golf ballSUMITOMO RUBBER IND·Filed 1993·Granted Dec 15, 1998·18 cites·7 claims
- 2759US5816939AWound golf ball and rubber thread thereforeSUMITOMO RUBBER IND·Filed 1997·Granted Oct 6, 1998·27 cites·6 claims
- 2857US7015264B2Deproteinizing agent, deproteinized natural rubber latex using the same, and method of producing rubber productSUMITOMO RUBBER IND LDT·Filed 2003·Granted Mar 21, 2006·2 cites·5 claims
- 2956US5340112AThread wound golf ballSUMITOMO RUBBER IND·Filed 1993·Granted Aug 23, 1994·25 cites·11 claims
- 3052US6255382B1Coated golf ballSUMITOMO RUBBER IND·Filed 1997·Granted Jul 3, 2001·21 cites·13 claims
- 3151US2001051675A1Deproteinizing agent, deproteinized natural rubber latex using the same, and method of producing rubber productFiled 2001·Application pending·0 cites
- 3250USRE35293ESolid golf ballSUMITOMO RUBBER IND·Filed 1995·Granted Jul 9, 1996·13 cites·8 claims
- 3339US5346223AThread wound golf ballSUMITOMO RUBBER IND·Filed 1993·Granted Sep 13, 1994·11 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →