Inventor · disambiguated record
Yasushi Ichikawa
Also filed as: ICHIKAWA YASUSHI
176 granted patents·36 pending applications·5,686 citations·filing 1995–2017
99Inventor score
Top patents by PatentIndex Score
212 records- 0199US5929189AGolf ballBRIDGESTONE SPORTS CO LTD·Filed 1997·Granted Jul 27, 1999·407 cites·11 claims
- 0297US6329458B1Golf ball cover compositions and golf ballsBRIDGESTONE SPORTS CO LTD·Filed 1999·Granted Dec 11, 2001·238 cites·24 claims
- 0397US5688595AMulti-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1996·Granted Nov 18, 1997·169 cites·11 claims
- 0496US8950236B2Methods for providing a selection of a recommended golf ballISHII HIDEYUKI·Filed 2012·Granted Feb 10, 2015·29 cites·21 claims
- 0596US8193296B2Golf balls including crosslinked thermoplastic polyurethaneISHII HIDEYUKI·Filed 2010·Granted Jun 5, 2012·18 cites·22 claims
- 0696US6739986B2Multi-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 2001·Granted May 25, 2004·146 cites·8 claims
- 0796US5779563AMulti-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1997·Granted Jul 14, 1998·203 cites·5 claims
- 0895US6981925B2Multi-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 2003·Granted Jan 3, 2006·51 cites·17 claims
- 0994USD560262SGolf club headBRIDGESTONE SPORTS CO LTD·Filed 2006·Granted Jan 22, 2008·61 cites·1 claims
- 1094US6894097B2Golf ball material and golf ballBRIDGESTONE SPORTS CO LTD·Filed 2001·Granted May 17, 2005·68 cites·17 claims
- 1194US6231460B1Multilayer structure solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1999·Granted May 15, 2001·144 cites·14 claims
- 1294US6123628ASolid golf balls and method of makingBRIDGESTONE SPORTS CO LTD·Filed 1998·Granted Sep 26, 2000·138 cites·8 claims
- 1394US5830085AThree-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1997·Granted Nov 3, 1998·140 cites·13 claims
- 1494US5792008AGolf ballBRIDGESTONE SPORTS CO LTD·Filed 1997·Granted Aug 11, 1998·145 cites·3 claims
- 1593US6746345B2Multi-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 2001·Granted Jun 8, 2004·91 cites·12 claims
- 1693US6129640AMulti-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1999·Granted Oct 10, 2000·124 cites·18 claims
- 1792US6838501B2Golf ball material and golf ballBRIDGESTONE SPORTS CO LTD·Filed 2001·Granted Jan 4, 2005·80 cites·32 claims
- 1892US6806323B2Golf ballBRIDGESTONE SPORTS CO LTD·Filed 2002·Granted Oct 19, 2004·38 cites·9 claims
- 1992US6723008B2Multi-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 2001·Granted Apr 20, 2004·86 cites·12 claims
- 2092US6616552B2Golf ballBRIDGESTONE SPORTS CO LTD·Filed 2000·Granted Sep 9, 2003·77 cites·13 claims
- 2192US6569037B2Golf ballBRIDGESTONE SPORTS CO LTD·Filed 2001·Granted May 27, 2003·77 cites·12 claims
- 2292US6126558AMulti-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1999·Granted Oct 3, 2000·119 cites·20 claims
- 2391US9480883B2Methods for providing a selection of a recommended golf ballNIKE INC·Filed 2014·Granted Nov 1, 2016·23 cites·12 claims
- 2491US7784226B2Joint structure for antiseismic reinforcementNIPPON STEEL CORP·Filed 2005·Granted Aug 31, 2010·23 cites·22 claims
- 2591USD568427SGolf club headBRIDGESTONE SPORTS CO LTD·Filed 2006·Granted May 6, 2008·45 cites·1 claims
- 2691US6624221B2Resin composition for golf ball and golf ballBRIDGESTONE SPORTS CO LTD·Filed 2001·Granted Sep 23, 2003·70 cites·19 claims
- 2791US6135898AMulti-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1999·Granted Oct 24, 2000·106 cites·16 claims
- 2891US5935021AGolf ballBRIDGESTONE SPORTS CO LTD·Filed 1997·Granted Aug 10, 1999·109 cites·7 claims
- 2990US6962951B1Golf ball materials and golf ballBRIDGESTONE SPORTS CO LTD·Filed 2000·Granted Nov 8, 2005·60 cites·7 claims
- 3090US6747100B2Golf ballBRIDGESTONE SPORTS CO LTD·Filed 2002·Granted Jun 8, 2004·64 cites·4 claims
- 3190US6267692B1Multi-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1998·Granted Jul 31, 2001·102 cites·16 claims
- 3290US5800286AGolf ballBRIDGESTONE SPORTS CO LTD·Filed 1997·Granted Sep 1, 1998·107 cites·3 claims
- 3389US7390852B2Multi-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 2006·Granted Jun 24, 2008·32 cites·24 claims
- 3488US6174247B1Multi-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1998·Granted Jan 16, 2001·94 cites·12 claims
- 3588US6106415AMulti-layer structure solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1997·Granted Aug 22, 2000·93 cites·7 claims
- 3687US6267694B1Multi-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1998·Granted Jul 31, 2001·84 cites·17 claims
- 3787US6037419AGolf ballBRIDGESTONE SPORTS CO LTD·Filed 1997·Granted Mar 14, 2000·89 cites·13 claims
- 3887US5976035AWound golf ballBRIDGESTONE SPORTS CO LTD·Filed 1998·Granted Nov 2, 1999·98 cites·14 claims
- 3986US8764581B2Systems and methods for manufacturing a golf ballICHIKAWA YASUSHI·Filed 2010·Granted Jul 1, 2014·6 cites·24 claims
- 4086US6248028B1Multi-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1998·Granted Jun 19, 2001·82 cites·14 claims
- 4186US5967908AGolf ballBRIDGESTONE SPORTS CO LTD·Filed 1998·Granted Oct 19, 1999·80 cites·3 claims
- 4285US6814676B2Multi-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 2002·Granted Nov 9, 2004·41 cites·8 claims
- 4385US6251991B1Golf ball cover stocks and golf ballsBRIDGESTONE SPORTS CO LTD·Filed 1998·Granted Jun 26, 2001·69 cites·4 claims
- 4484US6582325B1Solid golf balls and method of makingBRIDGESTONE SPORTS CO LTD·Filed 2000·Granted Jun 24, 2003·39 cites·4 claims
- 4584US6142888AMulti-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 1999·Granted Nov 7, 2000·70 cites·12 claims
- 4684US5977264AGolf ballBRIDGESTONE SPORTS CO LTD·Filed 1997·Granted Nov 2, 1999·72 cites·4 claims
- 4784US5872185AGolf ballBRIDGESTONE SPORTS CO LTD·Filed 1997·Granted Feb 16, 1999·73 cites·17 claims
- 4883US8882606B2Golf swing data gathering method and systemLEECH NICHOLAS A·Filed 2010·Granted Nov 11, 2014·17 cites·20 claims
- 4983US6702695B1Multi-piece solid golf ballBRIDGESTONE SPORTS CO LTD·Filed 2000·Granted Mar 9, 2004·37 cites·32 claims
- 5083US6620061B1Golf ballBRIDGESTONE SPORTS CO LTD·Filed 2000·Granted Sep 16, 2003·18 cites·10 claims
Showing the top 50 of 212 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →