Abstract: A golf ball 2 includes a core 4, an envelope layer 6 positioned outside the core 4, a mid layer 8 positioned outside the envelope layer 6, and a cover 10 positioned outside the mid layer 8. The core 4 includes a spherical center 12 and a core outer layer 14 positioned outside the center 12. The center 12 has a diameter of 1 mm or greater and 15 mm or less. The difference (H4?H3) between the JIS-C hardness H4 of the core 4 at its surface and the JIS-C hardness H3 of the core outer layer 14 at its innermost portion is equal to or greater than 10. The cover 10 has a Shore D hardness H7 less than 40. The Shore D hardnesses H5, H6 and H7 of the envelope layer 6, the mid layer 8, and the cover 10 satisfy that H5>H6?H7.

Abstract: A golf ball 2 has a core 4, an inner cover 6 positioned outside the core 4 and an outer cover 8 positioned outside the inner cover 6. The core 4 has a spherical center 10 and a mid layer 12 positioned outside the center 10. The center 10 has a diameter of 1 mm or greater and 15 mm or less. A difference (H4?H3) between a JIS-C hardness H4 of a surface of the core and a JIS-C hardness H3 of an innermost part of the mid layer is equal to or greater than 10. The hardness H4 is greater than a JIS-C hardness H2 of a surface of a spherical body including the core 4 and the inner cover 6. A Shore D hardness H7 of the outer cover 8 is less than 40.

Abstract: A golf ball 2 has a hollow center 8, a mid layer 10, an inner cover 12 and an outer cover 14. The center 8 is formed by crosslinking a rubber composition. The rubber composition contains a natural rubber as a base polymer. The rubber composition contains sulfur. The mid layer 10 is formed by crosslinking a rubber composition. This rubber composition includes butadiene as a principal component of the base polymer. The center 8 has an inside diameter of 2 mm or greater and 13 mm or less. The center 8 has an outside diameter of 5 mm or greater and 15 mm or less. The center 8 has a surface JIS-C hardness H2 of 25 or greater and 55 or less. A difference (H4?H3) between a surface JIS-C hardness H4 of the mid layer 10 and a JIS-C hardness H3 of an innermost part of the mid layer is equal to or greater than 10.

Abstract: A golf ball 2 has a core 4, an inner cover 6 positioned outside this core 4 and an outer cover 8 positioned outside the inner cover 6. The core 4 has a spherical center 10 and a mid layer 12 positioned outside this center 10. The center 10 is formed by crosslinking a rubber composition. The mid layer 12 is formed by crosslinking a rubber composition. The inner cover 6 is made of a thermoplastic resin composition. The outer cover 8 is made of a thermoplastic resin composition. The center 10 has a diameter of 1 mm or greater and 15 mm or less. The center 10 has a central point having JIS-C hardness H1 of 20 or greater and 50 or less. A difference (H4?H3) between a hardness H4 of a surface of the core and a hardness H3 of an innermost part of the mid layer is equal to or greater than 10. A hardness H5 of the inner cover is smaller than a hardness H6 of the outer cover.

Abstract: A golf ball 2 has a spherical core 4 and a cover 6 positioned outside this core 4. The core 4 has a spherical center 8 and a mid layer 10 positioned outside this center 8. The center 8 is formed by crosslinking a rubber composition. A base rubber of the rubber composition contains polybutadiene as a principal component. The rubber composition contains sulfur as a crosslinking agent. The center 8 has a diameter of 1 mm or greater and 15 mm or less. The center 8 has a central hardness H1 of 20 or greater and 50 or less. A difference (H4?H3) between a hardness H4 of a surface of the mid layer 10 and a hardness of an innermost part thereof is equal to or greater than 10.

Abstract: A golf ball 2 includes a core 4, an envelope layer 6, a mid layer 8 and a cover 10. A thickness Tm of the mid layer 8 is less than 1.2 mm. A thickness Tc of the cover 10 is less than 0.6 mm. The sum of the thicknesses Tm and Tc is equal to or less than mm. A hardness Hs of the envelope layer 6 is 50 or greater. A hardness Hm of the mid layer 8 is 30 or greater and 60 or less. A hardness Hc of the cover 10 is less than 40. The hardness Hs, the hardness Hm, and the hardness Hc satisfy the following formula (1). Hs?Hm?Hc ??(1) The base material of the envelope layer 6 is ionomer resin. The base material of the midlayer 8 is polyurethane. The base material of the cover 10 is polyurethane.

Abstract: A golf ball 2 includes a core 4, an envelope layer 6, a mid layer 8 and a cover 10. A thickness Tm of the mid layer 8 is equal to or less than 1.0 mm. A thickness Tc of the cover 10 is less than 0.6 mm. The sum of the thicknesses Tm and Tc is equal to or less than 1.5 mm. A hardness Hc of the cover is less than 40. The hardness Hs, the hardness Hm, and the hardness Hc satisfy the following formula (1). Hs>Hc>Hm ??(1) The base material of the envelope layer 6 is ionomer resin. The base material of the mid layer 8 is polyurethane. The base material of the cover 10 is polyurethane.

Abstract: A golf ball 2 includes a core 4, a cover 6, and a paint layer 8. The golf ball 2 has numerous dimples 10 on the surface thereof. The cover 6 is formed of a resin composition including thermoplastic polyurethane (A) and a polyisocyanate mixture (B). The polyisocyanate mixture (B) includes a polyisocyanate compound (B1) having two or more isocyanate groups or a urethane prepolymer (B2) having two or more isocyanate groups. The cover 6 has a hardness of 30 or greater and 55 or less. The cover 6 has a thickness of 1.0 mm or greater and 2.0 mm or less. The ratio of the total volume of all the dimples 10 to the surface area of a phantom sphere of the golf ball is less than 75%. The dimples 10 have a curvature radius at the edge thereof in a range of 0.1 mm to 10 mm.

Abstract: An object of the present invention is to provide a golf ball which has excellent durability and wear-resistance and provides an excellent shot feeling. The present invention is directed to a golf ball comprising: a core; and a cover covering the core, wherein the cover is formed from a cover composition containing a thermoplastic polyurethane (A), a polyisocyanate (B) having at least two isocyanate groups, and a polyhydroxyether (C) as a resin component, and wherein the core has a surface hardness of 85 or smaller in JIS-C hardness.

Abstract: A dual structure for a multiplexing section extended to an OSU is obtained without adding a dynamic function, such as an optical switch, to a W-MULDEM. The W-MULDEM of an optical wavelength division multiplexing access system divides, among ports corresponding to the individual ONUs, downstream optical signals having wavelengths ?d1 to ?dn, which are received along a current-use optical fiber, or downstream optical signals having wavelengths ?d1+?? to ?dn+??, which are received along a redundant optical fiber. The W-MULDEM also multiplexes, for the port that corresponds to the current-use optical fiber or the redundant optical fiber, upstream optical signals having wavelengths ?u1 to ?un or wavelengths ?u1+?? to ?un+??, which are received along optical fibers corresponding to the ONUs. A wavelength difference between the downstream optical signal and the upstream optical signal that are consonant with each ONU is defined as an integer times the FSR of an AWG.

Abstract: Golf ball 2 has core 4, cover 6 and paint layer 12. The base polymer of the cover 6 includes a thermoplastic polyurethane elastomer. The cover includes 0.1 parts by weight or more and 10 parts by weight or less of a hindered amine heat and light resistance stabilizer having a hindered phenol group, per 100 parts by weight of the base polymer. Preferably, the hindered amine heat and light resistance stabilizer has two or more hindered phenol groups in the molecule. It is preferred that the cover 6 further includes an ultraviolet ray absorbing agent and a heat resistance stabilizer. Provided that the molar concentration of the hindered amine heat and light resistance stabilizer is defined as A, and the molar concentration of the ultraviolet ray absorbing agent is defined as B, the molar ratio (A/B) is preferably 0.01 or greater and 2.5 or less. The cover 6 may further include a heat resistance stabilizer.

Abstract: Golf ball 2 has core 4, cover 6 and paint layer 12. The base polymer of the cover 6 includes a thermoplastic polyurethane elastomer. The cover 6 includes a benzotriazole based ultraviolet ray absorbing agent, a hindered amine light stabilizer and a hindered phenol heat resistance stabilizer. Provided that the molar concentration of the benzotriazole based ultraviolet ray absorbing agent is defined as A; the molar concentration of the hindered amine light stabilizer is defined as B; and the molar concentration of the hindered phenol heat resistance stabilizer is defined as C, the molar ratio (B/A) is 0.01 or greater and 0.5 or less, and the molar ratio [(B+C)/A] is 0.1 or greater and 1.5 or less. Preferably, the hindered amine light stabilizer does not have a hindered phenol group in the molecule. Preferably, the principal component of the elastomer is a reaction product of MDI and polyether polyol.

Abstract: Golf ball 2 has core 4, cover 6 and paint layer 12. The base polymer of the cover 6 includes a thermoplastic polyurethane elastomer. The cover 6 includes one or more kinds of ultraviolet ray absorbing agents. The paint layer 12 includes one or more kinds of ultraviolet ray absorbing agents. There are one or more kinds of ultraviolet ray absorbing agents (common ultraviolet ray absorbing agent) included in the cover 6 and the paint layer 12. The cover 6 includes the common ultraviolet ray absorbing agent in an amount of A parts by weight per 100 parts by weight of the base polymer, and the paint layer 12 includes the common ultraviolet ray absorbing agent in an amount of B parts by weight per 100 parts by weight of the resin component, with the ratio (A/B) being preferably 0.1 or greater and 10 or less. Preferably, the thermoplastic polyurethane elastomer is an MDI based polyurethane elastomer.

Abstract: A dual structure for a multiplexing section extended to an OSU is obtained without adding a dynamic function, such as an optical switch, to a W-MULDEM. The W-MULDEM of an optical wavelength division multiplexing access system divides, among ports corresponding to the individual ONUs, downstream optical signals having wavelengths ?d1 to ?dn, which are received along a current-use optical fiber, or downstream optical signals having wavelengths ?d1+?? to ?dn+??, which are received along a redundant optical fiber. The W-MULDEM also multiplexes, for the port that corresponds to the current-use optical fiber or the redundant optical fiber, upstream optical signals having wavelengths ?u1 to ?un or wavelengths ?u1+?? to ?un+??, which are received along optical fibers corresponding to the ONUs. A wavelength difference between the downstream optical signal and the upstream optical signal that are consonant with each ONU is defined as an integer times the FSR of an AWG.

Abstract: A voice expressed by a voice actor or actress to a look and behavior of a character is electronized into voice data. The voice data and character data are stored in an associated relationship in a server device of an enterprise. A list of voice data stored in the server device is sent to a user's information terminal over the Internet. At the user's request, the server selects corresponding voice data and sells it to the user. The server also sells image data of the character.

Abstract: A voice expressed by a voice actor or actress to a look and behavior of a character is electronized into voice data. The voice data and character data are stored in an associated relationship in a server device of an enterprise. A list of voice data stored in the server device is sent to a user's information terminal over the Internet. At the user's request, the server selects corresponding voice data and sells it to the user. The server also sells image data of the character.

Abstract: A brake pressure control device is provided that includes a brake valve, an air master cylinder, and an air control valve. The air control valve is provided between the brake valve and the air master cylinder for selectively controlling the air pressure supplied from the brake valve to the air master cylinder. The air control valve includes an input port coupled to the brake valve for receiving air pressure provided from the brake valve; an exhaust port coupled to open air and to a back pressure chamber of the air master cylinder; an output port coupled to the air master cylinder; a pipe passageway coupled between the input port, the exhaust port, and the output port; at least one diaphragm provided within the pipe passageway; and a release valve connected between the exhaust port and the output port for releasing air pressure from the output port to the exhaust port during a brake releasing operation.

Abstract: Disclosed is a solenoid valve device having a bobbin assembly 3 including an outer yoke 105 as a magnetic circuit, a solenoid coil 20 positioned within the outer yoke 105, and a connector pin 107 for supplying the electric current to the solenoid coil 20. The bobbin assembly 3, which is molded of at least two layers of resins, has an inner resin section 120 for integrally setting at least the outer yoke 105 and the solenoid coil 20 together, and an outer resin section 125 to enclose the inner resin section 120, forming the outer surface of the bobbin assembly 3. This inner resin section 120 is formed of a resin having a higher coefficient of thermal expansion than the outer resin section 125, while the outer resin section 125 is formed of a resin having a higher dimensional stability than the inner resin section 120.

Abstract: A brake control device to be used for brake control and traction control of a motor vehicle includes a shuttle valve, a modulator, a traction control valve and a throttle valve. The shuttle valve selects a higher air pressure either from a brake valve, which operates when the brake is applied, or from a traction control valve, which opens during traction control to prevent wheel slippage. The shuttle valve allows the higher of the two air pressures to enter the modulator, which converts the entering air pressure to a brake hydraulic pressure to be supplied to the wheel cylinders of the motor vehicle. The throttle valve provided between the traction control valve and the shuttle valve decreases the air pressure from the traction control valve to be transmitted to the modulator when the traction control is activated. The throttle valve and the shuttle valve cooperate to increase the number of discharge air passages so that the brake control device has a greater discharge capacity when the brakes are released.

Abstract: In a brake control device with a traction control function, there is provided a traction control valve for connecting a first conduit extending from a first pressure source to a brake valve to a second conduit extending from a second pressure source for arbitrarily switching the route of the pressure of air supplied from the traction valve to the modulator. With this construction, it is possible to obtain the compact brake control device capable of reducing the number of parts and enhancing the brake responsiveness with a low cost.