Patents by Inventor Mami Tanaka
Mami Tanaka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10183197Abstract: An object of the present invention is to provide a golf ball excellent in durability. The present invention provides a golf ball comprising a constituent member containing a crosslinked rubber component and a polyrotaxane component, wherein the polyrotaxane has a cyclodextrin, a linear molecule piercing through the cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —O—C3H6—O— group.Type: GrantFiled: September 8, 2017Date of Patent: January 22, 2019Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Toshiyuki Tarao, Mami Tanaka
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Patent number: 10160858Abstract: An object of the present invention is to provide a golf ball having an excellent spin performance on approach shots under a wet condition. The present invention provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the cover is formed from a cover composition containing (A) a polyurethane and (B) a polyrotaxane as a resin component, and wherein (B) the polyrotaxane has a cyclodextrin, a linear molecule piercing through the cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —O—C3H6—O— group.Type: GrantFiled: October 28, 2016Date of Patent: December 25, 2018Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Mami Tanaka, Toshiyuki Tarao
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Publication number: 20180178075Abstract: An object of the present invention is to provide a golf ball having good spin performance on approach shots and good shot feeling as well as excellent stain resistance by precisely controlling physical properties of a paint film actually formed on a surface of a golf ball body. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein the paint film is such that a linear approximation curve obtained by a least square method has a slope in a range from 0.0015 to 0.0045 when a storage modulus (GPa) thereof measured by a nanoindentation method is plotted as a vertical axis against a measuring frequency (Hz) as a horizontal axis, and that an elastic modulus thereof measured by a nanoindentation method ranges from 0.040 GPa to 0.600 GPa.Type: ApplicationFiled: December 26, 2017Publication date: June 28, 2018Applicant: DUNLOP SPORTS CO. LTD.Inventors: Toshiyuki TARAO, Kazuya Kamino, Mami Tanaka, Hidetaka Inoue
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Publication number: 20180178081Abstract: An object of the present invention is to provide a golf ball exhibiting good shot feeling and excellent resilience. The present invention provides a golf ball comprising a spherical core and one or more cover layers disposed outside the spherical core, wherein at least one layer of the cover layers contains: (A) a base resin containing (a-1) an ionomer resin and having a material hardness of 59 or more in Shore D hardness; and (B) a polyrotaxane having a cyclodextrin with at least a part of hydroxyl groups of the cyclodextrin being modified with a caprolactone chain via —O—C3H6—O— group, a linear molecule piercing through a cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin.Type: ApplicationFiled: December 26, 2017Publication date: June 28, 2018Applicant: Dunlop Sports Co. Ltd.Inventors: Mami TANAKA, Toshiyuki TARAO
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Publication number: 20180178074Abstract: An object of the present invention is to provide a golf ball having good spin performance on approach shots and good shot feeling as well as excellent stain resistance by precisely controlling physical properties of a paint film actually formed on a surface of a golf ball body. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein the paint film is such that a linear approximation curve obtained by a least square method has a slope in an absolute value ranging from 0.0001 to 0.0020 when a loss tangent tan ? thereof measured by a nanoindentation method is plotted as a vertical axis against a measuring frequency (Hz) as a horizontal axis, and that an elastic modulus thereof measured by a nanoindentation method ranges from 0.040 GPa to 0.600 GPa.Type: ApplicationFiled: December 14, 2017Publication date: June 28, 2018Applicant: Dunlop Sports Co. Ltd.Inventors: Toshiyuki TARAO, Kazuya KAMINO, Mami TANAKA, Hidetaka INOUE
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Publication number: 20180178080Abstract: An object of the present invention is to provide a golf ball having excellent shot feeling and resilience as well as improved durability and abrasion resistance. The present invention provides a golf ball comprising a spherical core and one or more cover layers disposed outside the spherical core, wherein at least one layer of the cover layers contains: (A) a base resin containing (a-1) an ionomer resin and having a material hardness of 58 or less in Shore D hardness; and (B) a polyrotaxane having a cyclodextrin with at least a part of hydroxyl groups thereof being modified with a caprolactone chain via —O—C3H6—O— group, a linear molecule piercing through a cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin.Type: ApplicationFiled: December 26, 2017Publication date: June 28, 2018Applicant: Dunlop Sports Co. Ltd.Inventors: Mami TANAKA, Toshiyuki TARAO
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Publication number: 20180093138Abstract: An object of the present invention is to provide a golf ball excellent in durability. The present invention provides a golf ball comprising a constituent member containing a crosslinked rubber component and a polyrotaxane component, wherein the polyrotaxane has a cyclodextrin, a linear molecule piercing through the cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —O—C3H6—O— group.Type: ApplicationFiled: September 8, 2017Publication date: April 5, 2018Applicant: Dunlop Sports Co., Ltd.Inventors: Toshiyuki TARAO, Mami TANAKA
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Patent number: 9931542Abstract: A golf ball 2 includes a main body 4 and a paint film 6. The paint film 6 includes an inner layer 14 and an outer layer 16. A modulus Min of the inner layer 14 is higher than a modulus Mout of the outer layer 16. A difference (Min?Mout) is not less than 25 kgf/cm2. The golf ball 2 has a plurality of dimples 18. A ratio So of a sum of areas of the dimples 18 relative to a surface area of a phantom sphere of the golf ball 2 and a ratio Rs of a number of the dimples 18 each having a diameter of not less than 9.60% and not greater than 10.37% of a diameter of the golf ball 2, relative to a total number of the dimples 18, satisfy the following mathematical formula (1). Rs??2.Type: GrantFiled: July 10, 2017Date of Patent: April 3, 2018Assignee: DUNLOP SPORTS CO. LTD.Inventors: Hidetaka Inoue, Kazuya Kamino, Kohei Mimura, Toshiyuki Tarao, Mami Tanaka
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Publication number: 20180036599Abstract: A golf ball 2 includes a main body 4 and a paint film 6. The paint film 6 includes an inner layer 14 and an outer layer 16. A modulus Min of the inner layer 14 is higher than a modulus Mout of the outer layer 16. A difference (Min?Mout) is not less than 25 kgf/cm2. The golf ball 2 has a plurality of dimples 18. A ratio So of a sum of areas of the dimples 18 relative to a surface area of a phantom sphere of the golf ball 2 and a ratio Rs of a number of the dimples 18 each having a diameter of not less than 9.60% and not greater than 10.37% of a diameter of the golf ball 2, relative to a total number of the dimples 18, satisfy the following mathematical formula (1). Rs??2.Type: ApplicationFiled: July 10, 2017Publication date: February 8, 2018Applicant: DUNLOP SPORTS CO. LTD.Inventors: Hidetaka INOUE, Kazuya KAMINO, Kohei MIMURA, Toshiyuki TARAO, Mami TANAKA
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Patent number: 9884225Abstract: An object of the present invention is to provide a material for obtaining a golf ball having excellent shot feeling and flight distance. The present invention provides a golf ball resin composition having a ratio (flexural elastic modulus/slab hardness) of a flexural elastic modulus (MPa) to a slab hardness (Shore D hardness) in a range from 3 to 5, and containing, as a resin component, (A) a polyamide resin, (B) at least one selected from the group consisting of (b-1) a binary copolymer, (b-2) a metal ion-neutralized product of a binary copolymer, (b-3) a ternary copolymer and (b-4) a metal ion-neutralized product of a ternary copolymer, and (C) a thermoplastic elastomer.Type: GrantFiled: March 11, 2016Date of Patent: February 6, 2018Assignee: DUNLOP SPORTS CO. LTD.Inventors: Hidetaka Inoue, Toshiyuki Tarao, Mami Tanaka
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Publication number: 20170340923Abstract: An object of the present invention is to provide a golf ball having excellent abrasion resistance and spin performance on driver shots. The present invention provides a golf ball having a spherical core and a cover covering the spherical core, wherein the cover contains a polyurethane, wherein the polyurethane comprises, as a constituent component, (A) a polyisocyanate component and (B) a polyol component containing (b1) a polyrotaxane, and wherein (b1) the polyrotaxane has a cyclodextrin, a linear molecule piercing through the cyclic structure of the cyclodextrin, and a blocking group located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —O—C3H6—O— group.Type: ApplicationFiled: May 11, 2017Publication date: November 30, 2017Applicant: Dunlop Sports Co. Ltd.Inventors: Mami TANAKA, Toshiyuki TARAO
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Patent number: 9757621Abstract: An object of the present invention is to provide a golf ball having excellent shot feeling and flight distance. The present invention provides a golf ball comprising a spherical core, a first resin layer and a second resin layer, wherein the first resin layer is formed from a first resin composition containing (A) a polyamide resin, (B) a copolymer and/or a metal ion-neutralized product thereof, and (C) a thermoplastic elastomer, and having a ratio (flexural elastic modulus/slab hardness) of a flexural elastic modulus (MPa) to a slab hardness (Shore D hardness) in a range from 3 to 5; and the second resin layer is formed from a second resin composition containing (D) a polyamide resin, and (E) a copolymer and/or a metal ion-neutralized product thereof.Type: GrantFiled: March 11, 2016Date of Patent: September 12, 2017Assignee: DUNLOP SPORTS CO., LTD.Inventors: Hidetaka Inoue, Toshiyuki Tarao, Mami Tanaka
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Publication number: 20170173401Abstract: A golf ball 2 includes an inner core 4, an outer core 6, a mid layer 8, and a cover 10. A diameter D1, a volume V1, a hardness H1o at a central point, and a boundary inside hardness H1in of the inner core 4; a volume V2, a boundary outside hardness H2out, and a surface hardness H2s of the outer core 6; a thickness Tm and a hardness Hm of the mid layer 8; and a thickness Tc and a hardness Hc of the cover 10 meet the following mathematical formulas (1) to (4): 1.0<V2/V1<7.0 (1); ?2<H2s?H2out<2 (2); 600<(H1o+H1in)*(D1/2)/2<1000 (3); 620<Tc*Hc*Hm/Tm<900 (4). The cover 10 includes a polyrotaxane.Type: ApplicationFiled: November 4, 2016Publication date: June 22, 2017Applicant: DUNLOP SPORTS CO. LTD.Inventors: Kazuya KAMINO, Kosuke TACHIBANA, Toshiyuki TARAO, Mami TANAKA
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Publication number: 20170165530Abstract: A golf ball 2 includes a core 4, a mid layer 6, and a cover 8. A difference DH in hardness between a surface and a central point of the core 4, a thickness Tm and a hardness Hm of the mid layer 6, a thickness Tc and a hardness Hc of the cover 8, and an amount of compressive deformation Sb of the golf ball 2 meet the following mathematical formulas (DH*Hm)/(Hc*Tc)>80 and ((Sb*Tc)/(Hc*Hm*Tm))*1000>0.75. A hardness Hc of the cover 8 is equal to or less than 40. A material of the cover 8 is a resin composition. The resin composition includes a polyurethane (A) and a polyrotaxane (B).Type: ApplicationFiled: November 9, 2016Publication date: June 15, 2017Applicant: DUNLOP SPORTS CO. LTD.Inventors: Kosuke TACHIBANA, Kazuya KAMINO, Toshiyuki TARAO, Mami TANAKA
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Publication number: 20170121524Abstract: An object of the present invention is to provide a golf ball having an excellent spin performance on approach shots under a wet condition. The present invention provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the cover is formed from a cover composition containing (A) a polyurethane and (B) a polyrotaxane as a resin component, and wherein (B) the polyrotaxane has a cyclodextrin, a linear molecule piercing through the cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —O—C3H6—O— group.Type: ApplicationFiled: October 28, 2016Publication date: May 4, 2017Applicant: Dunlop Sports Co. Ltd.Inventors: Mami TANAKA, Toshiyuki TARAO
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Publication number: 20160287944Abstract: An object of the present invention is to provide a material for obtaining a golf ball having excellent shot feeling and flight distance. The present invention provides a golf ball resin composition having a ratio (flexural elastic modulus/slab hardness) of a flexural elastic modulus (MPa) to a slab hardness (Shore D hardness) in a range from 3 to 5, and containing, as a resin component, (A) a polyamide resin, (B) at least one selected from the group consisting of (b-1) a binary copolymer, (b-2) a metal ion-neutralized product of a binary copolymer, (b-3) a ternary copolymer and (b-4) a metal ion-neutralized product of a ternary copolymer, and (C) a thermoplastic elastomer.Type: ApplicationFiled: March 11, 2016Publication date: October 6, 2016Applicant: DUNLOP SPORTS CO., LTD.Inventors: Hidetaka INOUE, Toshiyuki TARAO, Mami TANAKA
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Publication number: 20160287943Abstract: An object of the present invention is to provide a golf ball having excellent shot feeling and flight distance. The present invention provides a golf ball comprising a spherical core, a first resin layer and a second resin layer, wherein the first resin layer is formed from a first resin composition containing (A) a polyamide resin, (B) a copolymer and/or a metal ion-neutralized product thereof, and (C) a thermoplastic elastomer, and having a ratio (flexural elastic modulus/slab hardness) of a flexural elastic modulus (MPa) to a slab hardness (Shore D hardness) in a range from 3 to 5; and the second resin layer is formed from a second resin composition containing (D) a polyamide resin, and (E) a copolymer and/or a metal ion-neutralized product thereof.Type: ApplicationFiled: March 11, 2016Publication date: October 6, 2016Applicant: Dunlop Sports Co. Ltd.Inventors: Hidetaka INOUE, Toshiyuki TARAO, Mami TANAKA
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Patent number: 8239771Abstract: A CRM server sends to a client terminal activity data that has been read from a DB server, and directs the display thereof. When the activity data has been received from the CRM server, a client terminal obtains the screen data of a calendar screen is generated. Then a screen data for the activity detail screen that displays the activity data, screen data for an activity calendar screen is generated after display data for displaying information about a portion of the content of the activity has been added to screen data for a calendar screen in a field corresponding to a date and time shown by the activity data, and these generated screens are output on one screen.Type: GrantFiled: May 11, 2010Date of Patent: August 7, 2012Assignee: SAP AGInventors: Takayuki Sawada, Mami Tanaka, Yuma Yoshida
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Publication number: 20100287481Abstract: A CRM server sends to a client terminal activity data that has been read from a DB server, and directs the display thereof. When the activity data has been received from the CRM server, a client terminal obtains the screen data of a calendar screen is generated. Then a screen data for the activity detail screen that displays the activity data, screen data for an activity calendar screen is generated after display data for displaying information about a portion of the content of the activity has been added to screen data for a calendar screen in a field corresponding to a date and time shown by the activity data, and these generated screens are output on one screen.Type: ApplicationFiled: May 11, 2010Publication date: November 11, 2010Inventors: Takayuki Sawada, Mami Tanaka, Yuma Yoshida
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Patent number: 7739606Abstract: A CRM server sends to a client terminal activity data that has been read from a DB server, and directs the display thereof. When the activity data has been received from the CRM server, a client terminal obtains the screen data of a calendar screen is generated. Then a screen data for the activity detail screen that displays the activity data, screen data for an activity calendar screen is generated after display data for displaying information about a portion of the content of the activity has been added to screen data for a calendar screen in a field corresponding to a date and time shown by the activity data, and these generated screens are output on one screen.Type: GrantFiled: October 13, 2005Date of Patent: June 15, 2010Assignee: SAP AGInventors: Takayuki Sawada, Mami Tanaka, Yuma Yoshida