TA

Takeshi Ashino

SL Sri Sports Limited: 9 patents #49 of 176Top 30%
DC Dunlop Sports Co.: 3 patents #75 of 168Top 45%
SI Sumitomo Rubber Industries: 2 patents #809 of 1,637Top 50%
Overall (All Time): #350,091 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
9694254 Golf club head 2017-07-04
9474944 Golf club head 2016-10-25
9017185 Golf club set 2015-04-28
8137221 Racket frame 2012-03-20
7691016 Racket 2010-04-06
7431673 Racket Kunio Niwa 2008-10-07
7273430 Tennis racket frame Kunio Niwa 2007-09-25
7217203 Tennis racket Hiroyuki Takeuchi 2007-05-15
7137912 Tennis racket Kunio Niwa 2006-11-21
7131920 Racket frame 2006-11-07
7074142 Racket frame Hiroyuki Takeuchi, Kunio Niwa 2006-07-11
7059981 Racket frame Kunio Niwa 2006-06-13
6688997 Racket with reduced yoke rigidity Kunio Niwa, Hiroyuki Takeuchi 2004-02-10
6663514 Racket with vibration damping yoke Kunio Niwa, Hiroyuki Takeuchi 2003-12-16