Abstract: The present invention relates to a rubber composition including a rubber component (A), a farnesene polymer (B) and silica (C).

Abstract: A wiper device includes: a pivot shaft that rotates back and forth within a predetermined angular range; an arm head that is fixed to the pivot shaft; a cover that is mounted to the arm head; and a wiper arm that is pivotally supported on the arm head to come into and out of contact with a surface to be wiped. The wiper arm includes an engagement concave portion that extends in a longitudinal direction of the wiper arm at a side portion in a pivot direction of the wiper arm. The cover includes an engagement convex portion that extends in the longitudinal direction of the wiper arm. Relative movement of the wiper arm and the cover is restricted by engagement between an engagement wall portion of the engagement concave portion and the engagement convex portion.

Abstract: The magnetic disk unit includes: a magnetic recording medium; a thermally-assisted magnetic recording head including a magnetic pole applying a recording magnetic field to the magnetic recording medium and a heating element heating the magnetic recording medium; and a controller allowing the heating element to perform a continuous heating operation at a first temperature for a first time period, and halting the heating operation of the heating element or allowing the heating element to perform a heating operation at a second temperature lower than the first temperature for a second time period that follows the first time period, the first time period having a length substantially equal to or less than a length of a time required for the magnetic recording medium to rotate one turn, and the second time period having a length substantially equal to or more than the length of the first time period.

Abstract: A thermally assisted magnetic recording head has a generator end surface facing an air bearing surface (ABS), and includes: a near-field light (NF light) generator that generates an NF light on the generator end surface and irradiates a magnetic recording medium with the NF light, and a main magnetic pole end surface positioned in the vicinity of the generator end surface; a main magnetic pole that emits a magnetic flux from the main magnetic pole end surface to the magnetic recording medium and a shield end surface positioned in the vicinity of the generator end surface; and a return shield that is magnetically linked to the main magnetic pole, and that absorbs the magnetic flux returning from the magnetic recording medium at the shield end surface.

Abstract: A thermally assisted magnetic recording head has a generator end surface facing an air bearing surface (ABS), and includes: a near-field light (NF light) generator that generates an NF light on the generator end surface and irradiates a magnetic recording medium with the NF light, and a main magnetic pole end surface positioned in the vicinity of the generator end surface; a main magnetic pole that emits a magnetic flux from the main magnetic pole end surface to the magnetic recording medium and a shield end surface positioned in the vicinity of the generator end surface; and a return shield that is magnetically linked to the main magnetic pole, and that absorbs the magnetic flux returning from the magnetic recording medium at the shield end surface.

Abstract: The thermally assisted recording head of the present invention has a near field light (NF light) generator that includes a generator end surface facing an air bearing surface (ABS), that generates an NF light on the generator end surface, and that irradiates a magnetic recording medium with the NF light; a main magnetic pole that includes a main magnetic pole end surface facing the ABS and positioned in the vicinity of the generator end surface, and that emits a magnetic flux to the magnetic recording medium from the main magnetic pole end surface; and a return shield that includes a shield end surface facing the ABS and positioned in the vicinity of the generator end surface, that is magnetically linked with the main magnetic pole, and that absorbs a magnetic flux returning from the magnetic recording medium at the shield end surface.

Abstract: The present invention relates to a copolymer including a monomer unit (a) derived from isoprene and a monomer unit (b) derived from farnesene; a process for producing the copolymer including at least the step of copolymerizing isoprene with farnesene; a rubber composition including (A) the copolymer, (B) a rubber component and (C) carbon black; a rubber composition including (A) the copolymer, (B) a rubber component and (D) silica; a rubber composition including (A) the copolymer, (B) a rubber component, (C) carbon black and (D) silica; and a tire using the rubber composition at least as a part thereof.

Abstract: The present invention relates to a rubber composition including (A) at least one rubber component selected from the group consisting of a synthetic rubber and a natural rubber; (B) a polymer of farnesene; and (C) carbon black having an average particle size of from 5 to 100 nm, a content of the carbon black (C) in the rubber composition being from 20 to 100 parts by mass on the basis of 100 parts by mass of the rubber component (A).

Abstract: The present invention relates to a copolymer including a monomer unit (a) derived from a conjugated diene having not more than 12 carbon atoms and a monomer unit (b) derived from farnesene; a process for producing the copolymer including at least the step of copolymerizing a conjugated diene having not more than 12 carbon atoms with farnesene; a rubber composition including (A) the copolymer, (B) a rubber component and (C) carbon black; a rubber composition including (A) the copolymer, (B) a rubber component and (D) silica; a rubber composition including (A) the copolymer, (B) a rubber component, (C) carbon black and (D) silica; and a tire using the rubber composition at least as a part thereof.

Abstract: The present invention relates to a random copolymer including a monomer unit (a) derived from an aromatic vinyl compound and a monomer unit (b) derived from farnesene; a process for producing the copolymer including at least the step of copolymerizing an aromatic vinyl compound with farnesene; a rubber composition including (A) the copolymer, (B) a rubber component and (C) carbon black; a rubber composition including (A) the copolymer, (B) a rubber component and (D) silica; a rubber composition including (A) the copolymer, (B) a rubber component, (C) carbon black and (D) silica; and a tire using the rubber composition at least as a part thereof.

Abstract: An arm piece of a wiper arm, which has a connecting portion connected to a connecting pin through a connecting member received in an opening of a main lever, extends from the connecting portion toward a base end side portion of the main lever such that the arm piece overlaps with an upper surface of the main lever. The main lever is formed by runnerless injection molding. A gate trace, which is left on the main lever in the runnerless injection molding, is formed in an arm accommodation portion of the main lever, which is opposed to the arm piece in a top-to-bottom direction.

Abstract: A plasmon-generator of the invention is configured to include a first configuration member including a near-field light generating end surface; and a second configuration member joined and integrated with the first configuration member and not including the near-field light generating end surface. The first configuration member is configured to contain Au as a primary component and to contain any one or more elements selected from a group of Co, Fe, Sb, Nb, Zr, Ti, Hf, and Ta, and is configured so that a content percentage X1 of the contained element is within a range between 0.2 at % or more and 2.0 at % or less. Thereby, thermostability, optical characteristic, and the process stability are satisfied. Also, heat dissipation and heat generation suppression effect are extremely superior.

Abstract: The present invention relates to a rubber composition including a rubber component (A), a farnesene polymer (B) and silica (C).

Abstract: A wiper for a vehicle is provided with: an arm-side connection section; a blade-side connection section; support shafts which protrude from side walls of the blade-side connection section; and shaft support recesses which are provided in the arm-side connection section. When a wiper blade is located in a mounting-dismounting enabled region, the mounting-dismounting openings and the small-diameter sections of the support shafts match with each other, and the support shafts and the shaft support recesses can be mounted to and dismounted from each other. When the wiper blade is located in a mounting-dismounting disabled region, the mounting-dismounting openings and the small-diameter sections do not match with each other, and the support shafts and the shaft support recesses cannot be mounted to and dismounted from each other. A shape retaining section is located between the pair of the shaft support recesses.

Abstract: The present invention relates to a rubber composition including (A) at least one rubber component selected from the group consisting of a synthetic rubber and a natural rubber; (B) a polymer of farnesene; and (C) carbon black having an average particle size of from 5 to 100 nm, a content of the carbon black (C) in the rubber composition being from 20 to 100 parts by mass on the basis of 100 parts by mass of the rubber component (A).

Abstract: A thermally assisted magnetic write head includes a waveguide having a first end surface included in an air bearing surface; a magnetic pole having a second end surface included in the air bearing surface; a plasmon generator having a third end surface included in the air bearing surface; a first protective film directly covering a part of the second end surface of the magnetic pole at least; and a second protective film directly covering the first end surface of the waveguide and the third end surface of the plasmon generator. The configuration can reduce recording density and improve thermal stability, furthermore increase the producing yield.

Abstract: A magnetic head includes a reading part, a recording part that is laminated on the reading part in a planer view, a recording part expansion heater, a reading part expansion heater, and a thermal expansion promoting layer that is prepared at a position closer to the reading part than to the recording part and extends to an air bearing surface.

Abstract: A magnetic head includes first and second coils, a main pole, a write shield, a return path section, and a core part. The write shield includes first and second shield portions located on opposite sides of the main pole in a track width direction. The return path section includes first and second yoke portions located on opposite sides of the main pole in the track width direction. The core part is magnetically connected to a part of the main pole located away from a medium facing surface. The first coil surrounds at least part of the entire outer periphery of the main pole. The second coil surrounds at least part of the core part.

Abstract: A magnetic head includes a reading part, a recording part that is laminated on the reading part in a planer view, a recording part expansion heater, a reading part expansion heater, and a thermal expansion promoting layer that is prepared at a position closer to the reading part than to the recording part and extends to an air bearing surface.

Abstract: The present invention relates to a rubber composition including (A) at least one rubber component selected from the group consisting of a synthetic rubber and a natural rubber; (B) a polymer of farnesene; and (C) carbon black having an average particle size of from 5 to 100 nm, a content of the carbon black (C) in the rubber composition being from 20 to 100 parts by mass on the basis of 100 parts by mass of the rubber component (A).