Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D720026 | Iron-type golf club head | David Llewellyn, Kazuhiro Doi | 2014-12-23 |
| D682959 | Iron-type golf club head | Mamoru Saraie, Tomo Aoki, Richard Delvac | 2013-05-21 |
| D682961 | Iron-type golf club head | David Llewellyn, Kazuhiko Natori | 2013-05-21 |
| D650877 | Iron-type golf club head | David Llewellyn, Arata Kamo | 2011-12-20 |
| 8021246 | Iron golf club heads and golf club sets with variable weight distribution | David Llewellyn, Tetsuya Kanayama, Kazuhiro Doi, Tomoaki Aoki | 2011-09-20 |
| D641821 | Iron-type golf club head | David Llewellyn, Arata Kamo | 2011-07-19 |
| D600765 | Back design for an iron golf club head | David Llewellyn, Richard Delvac, Tomoaki Aoki | 2009-09-22 |
| D552703 | Perimeter-weighted back portion with an integrated trapezoidal weight portion for an iron golf club | Motokaka Iwata, Tomomi Watanabe, Mamoru Saraie, Kiyotaka Chaen | 2007-10-09 |
| D547817 | Perimeter-weighted golf club back with integrated trapezoidal weight | Mototaka Iwata, Tomomi Watanabe, Mamoru Saraie, Kiyotaka Chaen | 2007-07-31 |
| 7131913 | Iron golf club and golf club set | Mototaka Iwata, Tomomi Watanabe, Mamoru Saraie, Kiyotaka Chaen | 2006-11-07 |
| 7022028 | Iron golf club and golf club set with variable weight distribution | Masao Nagai, David Llewellyn, Harry B. Taylor, Mamoru Saraie | 2006-04-04 |
| D508722 | Golf club iron head | Mototaka Iwata, Tomomi Watanabe, Mamoru Saraie, Kiyotaka Chaen | 2005-08-23 |
| D504167 | Weight portion for a golf club iron head | Mototaka Iwata, Tomomi Watanabe, Mamoru Saraie, Kiyotaka Chaen | 2005-04-19 |
| D502239 | Golf club head | Junichi Dogan, Shuichi Noguchi | 2005-02-22 |
| D501523 | Golf club sole | Junichi Dogan, Shuichi Noguchi | 2005-02-01 |
| 6709345 | Iron golf club and golf club set | Mototaka Iwata, Tomomi Watanabe, Mamoru Saraie | 2004-03-23 |
| 6666779 | Golf club and method of manufacturing the golf club | Mototaka Iwata, Kiyotaka Chaen, Kenji Kanegawa | 2003-12-23 |