Mizuno Corporation

Mizuno Usa, Inc.

Mamoru Saraie

David Gregory Llewellyn

Isamu Toshinari

Tomomi Watanabe

Mototaka Iwata

Kiyotaka Chaen

Harry B Taylor

Kazuhiro Doi

Tetsuya Kanayama

Richard Delvac

Masao Nagai

Kei Tsuji

Chris Voshall

Tsugunobo Sakamoto

Tomo Aoki

Keiji Hashimoto

Koji Kawase

Motokaka Iwata

Iron-type golf club head

Iron-type golf club

Fairway wood-type golf club head

Hybrid golf club head

Driver-type golf club head

Back design for an iron golf club head

Perimeter-weighted back portion with an integrated trapezoidal weight portion for an iron golf club

Perimeter-weighted golf club back with integrated trapezoidal weight

A groove is provided a surface on a cavity portion side of a sole portion in a head portion of an iron golf club, and a thickness of a ball hitting portion in a face portion is made larger than a thickness of a top edge side portion of the face portion and at least as large as a thickness of a sole side portion of the face portion. In a golf club set according to the present invention, the groove has the greatest depth in a long iron golf club, while the groove has the smallest depth in a short iron golf club or no groove is provided in the short iron golf club.

Iron golf club and golf club set

An iron golf club and a set of iron golf clubs that have a variable weight distribution. Each iron golf club head has a cavity and a raised wall portion that extends upward from the sole and offset from the cavity. The raised wall portion is separated from the cavity by a groove set at an oblique angle to the face portion of the iron golf club The groove deepens the center of mass depth and lengthens the effective face length of the iron golf club. The width of the groove may vary between each golf club in a set of iron golf clubs, such that the width of the groove of the long irons is greater that the width of the groove of the middle irons, and the width of the groove of the middle irons is greater than the width of the groove of the short irons.

Iron golf club and golf club set with variable weight distribution

Golf club iron head

Weight portion for a golf club iron head

An iron golf club head consisting of a back portion, a weight portion, and the cavity portion, which form a 'multi-tier' weight distribution configuration. The cavity portion being delineated by a top segment, a toe segment, a sole segment and a heel segment. The first tier is defined by the back portion between the sole and the sole segment of the cavity portion. The second tier is defined by the weight portion, which is recessed from the back portion and is located between the sole segment of the cavity portion and a top edge that is located a predefined height above the sole segment. The third tier of the weight distribution configuration is defined by the cavity portion between the upper segment of the weight portion and the upper edge of the cavity portion.

Cavity back golf club having a multi-tiered weight distribution configuration

Growing community of inventors

Osaka, Japan

Mamoru Saraie