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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Nagasawa; Hiroyuki
Address:
Chichibu, JP
No. of patents:
28
Patents:




Patent Number Title Of Patent Date Issued
7601290 Method for producing golf ball October 13, 2009
A method of manufacturing golf balls composed of a core and a cover of one or more layer that encloses the core, at least one cover layer being made of a thermoplastic polyurethane composition characterized by including at least 90 wt % of a thermoplastic polyurethane obtained by a p
7510488 Solid golf ball March 31, 2009
The invention provides a solid golf ball having a solid core and a cover layer that encases the core and has an outermost layer on an outside surface of which are formed a plurality of dimples. The solid core is formed of a rubber composition composed of 100 parts by weight of a base
7479533 Golf ball January 20, 2009
A golf ball composed of a core and one or more cover layer which encloses the core is characterized in that at least one cover layer is made of a thermoplastic polyurethane composition characterized by including at least 90 wt % of a thermoplastic polyurethane obtained by a polyureth
7388066 Golf ball June 17, 2008
In a golf ball composed of a core and one or more cover layers which enclose the core, at least one cover layer is made primarily of a thermoplastic polyurethane obtained by a polyurethane forming reaction of an organic polyisocyanate compound with a long-chain polyol and a chain ext
7387581 Solid golf ball June 17, 2008
The invention provides a solid golf ball having a solid core, a cover layer that encloses the core, and a plurality of dimples formed on an outside surface of an outermost layer of the cover. The solid core is formed of a rubber composition composed of 100 parts by weight of a base r
7367902 Golf ball May 6, 2008
In a golf ball composed of a core, a cover of at least one layer that encloses the core, and a plurality of dimples on an outermost layer of the cover, at least one constituent element contains from 0.5 to 30 parts by weight of one or more rare-earth oxide composed of a single rare-earth
7303490 Golf ball and making method December 4, 2007
In a golf ball comprising a core and a cover, at least one layer of the cover is formed of a cover stock composition in which fullerene and/or carbon nanotubes are uniformly dispersed in a thermoplastic resin. The golf ball is prepared by uniformly dispersing fullerene and/or carbon
7300362 Golf ball November 27, 2007
The invention provides a golf ball having a solid core, an intermediate layer encasing the core, and an outermost layer cover of urethane which is softer than the intermediate layer. The outermost layer cover has a surface hardness, expressed in JIS-C hardness units, of at least 76 but
7278929 Three-piece solid golf ball October 9, 2007
A three-piece solid golf ball composed of a solid core, an intermediate layer which encloses the core, and a cover layer which encloses and is softer than the intermediate layer is characterized in that the solid core undergoes a deflection of 2.8 to 3.6 mm when a load of 130 kg is a
7261648 Golf ball August 28, 2007
In a golf ball comprising a core and a cover of at least one layer enclosing the core, at least one layer of the cover is formed of a resin composition comprising as essential components, (a) a component selected from the group consisting of an olefin-unsaturated carboxylic acid copo
7226367 Golf ball June 5, 2007
A golf ball comprises a solid core consisting of a center core and an outer core, wherein at least one of cores is made of a rubber composition comprising 100 parts by weight of a base rubber including. 60 to 100% by weight of a polybutadiene containing at least 60% by weight of cis-
7183357 Golf ball February 27, 2007
A golf ball has a core obtained by molding and vulcanizing a rubber composition comprising (A) a base rubber which includes a polybutadiene having a cis-1,4 content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or metal salt thereof, (C) an inorganic filler and (D) at l
7091269 Golf ball August 15, 2006
In a golf ball comprising a core and a cover of one or more layers, at least one layer of the cover is formed primarily of a mixture comprising (A) an ionomer resin, (B) a thermoplastic elastomer and (C) a thermoplastic block copolymer terminated with a functional group capable of re
7090799 Golf ball and method for preparing golf ball August 15, 2006
The invention provides a golf ball comprising a core and a cover of one or more layers, characterized in that at least one layer which constitutes the cover is formed primarily of a mixture of (A) a thermoplastic resin composition selected from among a thermoplastic block copolymer,
7090592 Multi-piece solid golf ball August 15, 2006
The invention provides a multi-piece solid golf ball comprising a core, an outermost layer cover, and at least one intermediate layer disposed therebetween, characterized in that the intermediate layer is formed of a resin composition having organic short fibers compounded therein. The
7086968 Golf Ball August 8, 2006
The invention provides a golf ball comprising a core of at least one layer, a cover of at least one layer, and optionally an intermediate layer therebetween, characterized in that at least one layer of the core, cover and intermediate layer is formed of a golf ball-forming resin comp
7077764 Golf ball July 18, 2006
A golf ball comprising a core and a cover formed of a cover resin composition is characterized in that the core has a hardness corresponding to a compressive deflection amount of at least 3.5 mm when the load applied thereto is increased from an initial load of 10 kgf to a final load
7074859 Golf ball July 11, 2006
A golf ball is characterized by comprising a molded and vulcanized product of a rubber composition as a constituent component, the rubber composition comprising 100 pbw of a base rubber including 60 100 wt % of a polybutadiene containing at least 60 wt % of cis-1,4-bond, having a Moo
7067572 Golf ball June 27, 2006
A golf ball is manufactured by molding and vulcanizing a rubber composition comprising 100 pbw of a base rubber composed primarily of a polybutadiene having a cis-1,4 content of at least 60 wt % and a Mooney viscosity of at least 30 and synthesized using a rare-earth catalyst, 15 50
7059976 Solid golf ball June 13, 2006
Disclosed herein is a solid golf ball made up of a core and at least one cover, wherein said core is formed mainly from a polybutadiene which is synthesized with using a catalyst of rare earth element such that the content of cis-1,4 bond is no less than 60%, said core has a diameter of
7037963 Golf ball May 2, 2006
A golf ball comprising a core and two or more outer layers covering said core, wherein the first outer layer is formed mainly from a mixture of a non-ionomer thermoplastic elastomer and an isocyanate compound and the second outer layer is formed mainly from a mixture composed of a resin
7037216 Multi-piece golf ball May 2, 2006
Disclosed herein is a multi-piece golf ball composed of a core and an outermost cover layer, with one or more inner cover layers interposed between them, which is characterized in that the core is made mainly of a polybutadiene which is synthesized with using a catalyst of rare earth
7008334 Golf ball March 7, 2006
A golf ball comprising a core and a multilayer cover including at least a cover inner layer and a cover outer layer is characterized in that the core has a hardness corresponding to a compressive deflection amount of at least 3.5 mm when the load applied thereto is increased from an
7008333 Golf ball March 7, 2006
The invention provides a golf ball comprising a core of at least one layer, a cover of at least one layer, and optionally an intermediate layer therebetween, characterized in that at least one layer of the core, cover and intermediate layer is formed of a golf ball-forming resin comp
6984182 Golf ball January 10, 2006
In a golf ball comprising a core and a cover of at least two layers, a cover outermost layer is formed of a composition comprising 100 pbw of a thermoplastic resin and 0.2 5 pbw of a cholesteric liquid crystal polymer, and a cover inner layer is formed of a composition comprising 100
6943208 Golf ball September 13, 2005
A golf ball is characterized by comprising a molded and vulcanized product of a rubber composition as a constituent component, the rubber composition comprising 100 pbw of a base rubber composed primarily of a polybutadiene containing at least 60 wt % of cis-1,4-bond, having a Mooney vis
6942582 Golf ball September 13, 2005
In a golf ball comprising a core and a cover, at least one layer of the cover is composed mainly of a mixture of an amino-terminated block polymer and an ionomer resin in a weight ratio between 3/97 and 60/40. The mixture is effectively moldable, and the golf ball is improved in rebound,
6939251 Golf ball September 6, 2005
Disclosed is a golf ball having a cover formed from a thermoplastic polyurethane material which can be recycled for molding, which exhibits high restitution, and which exhibits excellent scuff resistance. The cover is formed from a composition (D) containing, as predominant components,


 
 
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