Inventor · disambiguated record
Seiji Hayase
Also filed as: HAYASE SEIJI
24 granted patents·4 pending applications·136 citations·filing 2009–2025
94Inventor score
Top patents by PatentIndex Score
28 records- 0192US10850171B2Golf club headSUMITOMO RUBBER IND·Filed 2019·Granted Dec 1, 2020·3 cites·16 claims
- 0291US9174098B2Golf club headDUNLOP SPORTS CO LTD·Filed 2012·Granted Nov 3, 2015·26 cites·13 claims
- 0391US8747251B2Golf club headHAYASE SEIJI·Filed 2010·Granted Jun 10, 2014·32 cites·18 claims
- 0489US9220955B2Golf club head and method for manufacturing the sameDUNLOP SPORTS CO LTD·Filed 2013·Granted Dec 29, 2015·21 cites·14 claims
- 0588US8226500B2Golf club headYAMAMOTO AKIO·Filed 2009·Granted Jul 24, 2012·31 cites·18 claims
- 0681US8849635B2Method for predicting modal damping ratio of composite headHAYASE SEIJI·Filed 2012·Granted Sep 30, 2014·6 cites·13 claims
- 0777US10220278B2Golf clubSUMITOMO RUBBER IND·Filed 2018·Granted Mar 5, 2019·3 cites·11 claims
- 0875US10828542B2Golf club headSUMITOMO RUBBER IND·Filed 2019·Granted Nov 10, 2020·3 cites·14 claims
- 0974US10335657B2Golf clubSUMITOMO RUBBER IND·Filed 2018·Granted Jul 2, 2019·3 cites·12 claims
- 1073US11207574B2Golf club headSUMITOMO RUBBER IND·Filed 2020·Granted Dec 28, 2021·0 cites·20 claims
- 1170US10434387B2Golf clubSUMITOMO RUBBER IND·Filed 2018·Granted Oct 8, 2019·2 cites·11 claims
- 1269US2025058181A1Golf club headSUMITOMO RUBBER IND·Filed 2024·Application pending·0 cites
- 1368US10632355B2Golf clubSUMITOMO RUBBER IND·Filed 2019·Granted Apr 28, 2020·1 cites·20 claims
- 1465US12161918B2Golf club headSUMITOMO RUBBER IND·Filed 2022·Granted Dec 10, 2024·0 cites·18 claims
- 1564US11123618B2Golf clubSUMITOMO RUBBER IND·Filed 2020·Granted Sep 21, 2021·0 cites·20 claims
- 1664US8840490B2Golf club headHAYASE SEIJI·Filed 2011·Granted Sep 23, 2014·3 cites·16 claims
- 1763US2025367509A1RacketSUMITOMO RUBBER IND·Filed 2025·Application pending·0 cites
- 1862US8827837B2Golf club headHAYASE SEIJI·Filed 2011·Granted Sep 9, 2014·2 cites·11 claims
- 1954US12458851B2Golf club head and method for manufacturing the sameSUMITOMO RUBBER IND·Filed 2023·Granted Nov 4, 2025·0 cites·16 claims
- 2051US2023364477A1Golf club headSUMITOMO RUBBER IND·Filed 2023·Application pending·0 cites
- 2150US12409368B2Golf club headSUMITOMO RUBBER IND·Filed 2021·Granted Sep 9, 2025·0 cites·1 claims
- 2246US11311782B2Golf club headSUMITOMO RUBBER IND·Filed 2020·Granted Apr 26, 2022·0 cites·17 claims
- 2345US2019009149A1Golf clubSUMITOMO RUBBER IND·Filed 2018·Application pending·0 cites
- 2444US9586107B2Golf clubDUNLOP SPORTS CO LTD·Filed 2015·Granted Mar 7, 2017·0 cites·8 claims
- 2543US10864411B2Golf clubDUNLOP SPORTS CO LTD·Filed 2015·Granted Dec 15, 2020·0 cites·6 claims
- 2643US9795841B2Golf clubDUNLOP SPORTS CO LTD·Filed 2015·Granted Oct 24, 2017·0 cites·6 claims
- 2743US9776055B2Golf clubDUNLOP SPORTS CO LTD·Filed 2015·Granted Oct 3, 2017·0 cites·3 claims
- 2841US10427009B2Multi-piece golf ballDUNLOP SPORTS CO LTD·Filed 2015·Granted Oct 1, 2019·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →