Patent application number | Description | Published |
20130172096 | IRON-TYPE GOLF CLUB SET AND IRON-TYPE GOLF CLUB HEAD SET - A set of iron-type golf clubs and a set of iron-type golf club heads are disclosed. The loft angles of the heads are gradually increased from the lowest numbered golf club to the highest numbered golf club in the set. Given that a coefficient of inertia of the head is the ratio Ms/M of a moment of inertia Ms (gram sq·cm) of the head around a horizontal axis extending in a toe-heel direction of the head passing through the center of gravity of the head, to the mass M (g) of the head, the coefficient of inertia is gradually increased with the increase in the loft angle, and the difference of the coefficient of inertia of the head of the highest numbered club from that of the lowest numbered club is 0.3 or more. | 07-04-2013 |
20130225314 | GOLF CLUB HEAD | 08-29-2013 |
20140018185 | GOLF CLUB HEAD - A hollow golf club head comprises a head main body made of a metallic material and having a bottom portion including a first portion and a second portion being connected with the first portion having difference in level, and at least one weight member having a specific gravity larger than that of the head main body and attached to the second portion of the head main body. | 01-16-2014 |
20140349779 | GOLF CLUB HEAD | 11-27-2014 |
20140357402 | GOLF CLUB HEAD | 12-04-2014 |
20150031468 | GOLF CLUB - A golf club | 01-29-2015 |
20150031469 | GOLF CLUB - A golf club | 01-29-2015 |
20150031470 | GOLF CLUB - A golf club | 01-29-2015 |
20150038253 | GOLF CLUB - The golf club of the present invention includes: a shaft; a golf club head having a hosel portion and a first opening portion that is formed on a side opposite to the hosel portion and is in communication with an interior space of the hosel portion, and having a hosel coupling portion in the interior space of the hosel portion; a first adapter having a first end portion and a second end portion, having a shaft receiving recessed portion that is open on the first end portion side and is fixed together with the shaft, and having a coupling portion in the second end portion; a second adapter accommodated in the interior space of the hosel portion, the second adapter having a first end portion and a second end portion; and a fixing member removably fixing the second adapter and the first adapter together. | 02-05-2015 |