KM

Kiyofumi Matsunaga

SI Sumitomo Rubber Industries: 11 patents #179 of 1,637Top 15%
DC Dunlop Sports Co.: 10 patents #38 of 168Top 25%
SL Sri Sports Limited: 7 patents #63 of 176Top 40%
Overall (All Time): #134,416 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
12420149 Golf club head Naruhiro MIZUTANI, Jun KODAKA 2025-09-23
12337217 Golf club head Hiroshi Abe 2025-06-24
12257483 Golf club head and golf club Naruhiro MIZUTANI, Jun KODAKA, Hirotaka Nakamura, Daisuke KOHNO, Shinya Furuta 2025-03-25
11701554 Golf club head Tomohiro Hana 2023-07-18
11684830 Golf club head with sliding weight and cover Naruhiro MIZUTANI, Hirotaka Nakamura, Daisuke KOHNO, Yuki MOTOKAWA 2023-06-27
11666805 Golf club head 2023-06-06
11534665 Golf club head Hiroshi Abe 2022-12-27
10912969 Golf club head Yasushi Sugimoto, Yuki MOTOKAWA 2021-02-09
10898770 Golf club head Yasushi Sugimoto, Yuki MOTOKAWA 2021-01-26
10322326 Golf club hosel detachably coupled in a plurality of rotation positions Naruhiro MIZUTANI 2019-06-18
10010768 Golf club Naruhiro MIZUTANI 2018-07-03
9814946 Golf club head Kota YAMASAWA 2017-11-14
9724572 Golf club Naruhiro MIZUTANI 2017-08-08
9566485 Golf club shaft Hiroshi Hasegawa, Takeshi Shimauchi 2017-02-14
9480890 Golf club Naruhiro MIZUTANI 2016-11-01
9320950 Golf club Naruhiro MIZUTANI 2016-04-26
9295885 Golf club Naruhiro MIZUTANI 2016-03-29
9211454 Golf club shaft 2015-12-15
D733820 Golf club head Keith Dolezel, Nick Trahan, Phillip C. Seagram, Mika Becktor 2015-07-07
D732127 Golf club head Keith Dolezel, Nick Trahan, Phillip C. Seagram, Mika Becktor 2015-06-16
8992339 Golf club head 2015-03-31
8876633 Golf club head and golf club 2014-11-04
8864604 Golf club head and golf club 2014-10-21
8771100 Iron type golf club set 2014-07-08
8371955 Wood-type golf club set 2013-02-12