Patent application number | Description | Published |
20100120556 | GOLF CLUB HEAD | 05-13-2010 |
20110177881 | GOLF CLUB HEAD - A golf club head is provided with a crown, a sole, and a continuously extending rib (X). The rib (X) is provided on an inner surface of the head. Preferably, the rib (X) is substantially parallel to a toe-heel direction. When a maximum amplitude of vibration in a first-order mode in a state where the rib (X) is removed is defined as Ma1 and an amplitude ratio with respect to the maximum amplitude Ma1 is defined as Rh (%), disposal of the rib (X) satisfies the following items (a), (b), and (c):
| 07-21-2011 |
20110312439 | GOLF CLUB HEAD - A golf club head | 12-22-2011 |
20120100930 | GOLF CLUB HEAD - A golf club head | 04-26-2012 |
20120278048 | METHOD FOR PREDICTING MODAL DAMPING RATIO OF COMPOSITE HEAD - A prediction method according to the present invention is a method for predicting a modal damping ratio of a composite head including two or more kinds of materials including a first material and a second material. The method includes the steps of: presuming at least a coefficient Px of a generalized Maxwell model M1 in the first material using a known material damping ratio ζ1; obtaining a calculation model of the head using the generalized Maxwell model M1; and calculating the modal damping ratio of the head based on analysis of the head using the calculation model. Preferably, the Maxwell model is further used also for the second material. Preferably, the method further includes the step of presuming a coefficient Py of a generalized Maxwell model M2 in the second material using a known material damping ratio ζ2. | 11-01-2012 |
20130109502 | GOLF CLUB HEAD | 05-02-2013 |
20130324305 | GOLF CLUB HEAD AND METHOD FOR MANUFACTURING THE SAME - A golf club head comprises a metal member made of at least one kind of metal material and a resin member made of a resin material welded to the metal member. A method for manufacturing the golf club head comprises a step of welding the resin member to the metal member. | 12-05-2013 |
20160067564 | GOLF CLUB - A golf club | 03-10-2016 |
20160067565 | GOLF CLUB - A golf club | 03-10-2016 |
20160067566 | GOLF CLUB - A golf club | 03-10-2016 |
20160067567 | GOLF CLUB - A golf club | 03-10-2016 |