Kabushiki Kaisha Toshiba

Toshiba Electronic Devices & Storage Corporation

Chugai Seiyaku Kabushiki Kaisha

Kabusihki Kaisha Toshiba

Kaori Kimura

Masatoshi Sakurai

Yoshiyuki Kamata

Satoshi Shirotori

Takeshi Iwasaki

Akihiko Takeo

Akira Watanabe

Kazutaka Takizawa

Yousuke Isowaki

Akira Kikitsu

Tsuyoshi Onitsuka

Tatsuya Kato

Hiroyuki Hieda

Takashi Emura

Atsushi Ohta

Tetsuo Kojima

Atsushi Matsuo

Hitoshi Iikura

Takao Furuhashi

Mikimasa Tanada

Yusuke Yamagishi

Koji Takano

Ryuichi Takeyama

Naoaki Murao

Shiori Kariyuki

Takeo Iida

Miki Kojima

Kazuhiko Nakano

Kousuke Asou

Takuya Torizawa

Ryusuke Takano

Nozomi Hisada

Akira Fujimoto

Masaya Ohtake

Takuya Shiraishi

Takuya Matsumoto

Hiroyuki Hyodo

Masahiro Takashita

Yusuke Tomoda

Kazuto Kashiwagi

Katsuya Sugawara

Yosuke Isowaki

Tatsuhiko Toyosaki

According to one embodiment, a method of adjusting a heat assisted magnetic recording and reproducing device maintains a heat assisted magnetic recording head of the heat assisted magnetic recording and reproducing device in an on-track state, maintains a recording current for data recording below a threshold value, and applies a light source drive current emitting light to a light source.

Heat assisted magnetic recording and reproducing device and adjustment method of the same

A magnetic disk device includes a magnetic disk to which positional information for each track is written, an assist mechanism that heats the magnetic disk, a magnetic head that performs data reading and data writing on the magnetic disk, and a controller that controls the magnetic disk device. The controller is configured to cause the magnetic head to read the positional information written to the magnetic disk to learn a correction amount of a positional deviation generated in synchronization with rotation of the magnetic disk, in parallel with reading the positional information, cause, while supplying assist power to the assist mechanism to heat a learning target portion of the magnetic disk, the magnetic head to write a data pattern used for detection of a defective portion of the magnetic disk, and while supplying the assist power to the assist mechanism to heat a writing target portion of the correction amount of the magnetic disk, cause the magnetic head to write the learned correction amount to the magnetic disk.

Magnetic disk device and method

An object of the present invention is to provide methods of discovering drugs effective for tough targets, which have conventionally been discovered only with difficulty. The present invention relates to novel methods for cyclizing peptide compounds, and novel peptide compounds and libraries comprising the same, to achieve the above object.

Peptide-compound cyclization method

According to one embodiment, a method of adjusting a magnetic recording and reproducing device is a method of adjusting a magnetic recording and reproducing device incorporating a heat-assisted magnetic recording head and a magnetic disk, and the method includes performing a first write operation at a first position on a recording surface, measuring a first error rate at a second position different in radial position from the first position, performing a second write operation and then measuring a second error rate, obtaining a first difference between the first error rate and the second error rate, measuring a third error rate at the first position, performing a third write operation and then measuring a fourth error rate, calculating a second difference between the third error rate and the fourth error rate, comparing the first difference with the second difference and determining a change in flying height.

Magnetic recording and reproducing device and adjustment method of the same

A magnetic recording and reproducing device includes a magnetic recording medium having a lubricant on a surface of the magnetic recording medium, a heat-assisted magnetic recording head configured to perform magnetic recording on the magnetic recording medium, a humidity sensor, and a write procedure control circuit configured to control a write procedure of the heat-assisted magnetic recording head in accordance with a measurement result of the humidity sensor.

Magnetic recording and reproducing device and control method thereof

According to one embodiment, a magnetic recording/reproducing device includes a housing which accommodates a magnetic recording medium, and a magnetic head which records or reproduces magnetic data relative the magnetic recording medium, and a synthetic adsorbent provided in the housing and containing a polystyrene-divinylbenzene copolymer.

Magnetic recording/reproducing device and control method of magnetic recording/reproducing device

A magnetic recording and reproducing device includes a magnetic recording medium including a protective layer that is exposed to an enclosed interior volume of the magnetic recording and reproducing device, which contains oxygen and helium, a magnetic head including a heat assist element that is also exposed to the enclosed interior volume, the magnetic head configured to record data onto the magnetic recording medium, and an oxygen amount measurement unit configured to measure an oxygen amount in the enclosed interior volume.

Magnetic recording and reproducing device

According to one embodiment, a magnetic recording/reproducing device includes a plurality of magnetic recording medium each including a recording surface, a plurality of assisted magnetic recording heads each provided with the recording surface in order to perform assisted recording, and an assisting amount adjustment part connected to the assisted magnetic recording heads in order to adjust an assisting amount of each assisted magnetic recording head corresponding to a recording capacity of the recording surface.

Magnetic recording/reproducing device and magnetic recording/reproducing method

According to one embodiment, a magnetic disk device includes a rotatable disk-shaped recording medium, a magnetic head including a write head having a main magnetic pole that applies a recording magnetic field to the recording medium, an assist element that assists magnetic recording by the main magnetic pole, and a plurality of thermal actuators that control a head gradient with respect to the recording medium, and a controller which includes a detection unit configured to detect deterioration of the magnetic head, and changes a head gradient of the magnetic head by the thermal actuator according to the detected deterioration.

Magnetic disk device

According to one embodiment, a magnetic recording and reproducing device includes a magnetic flux control layer provided between a main magnetic pole and an auxiliary magnetic pole, and a protective layer provided on an ABS of the auxiliary magnetic pole. The magnetic flux control layer includes an adjustment layer formed of a magnetic material including one of Fe, Co or Ni and is provided between a first conductive layer and a second conductive layer, and generates a spin torque and inverts a direction of magnetization in the adjustment layer, when current is supplied. A voltage Vb applied to the magnetic flux control layer is lower than a voltage Vba represented by an expression (1), Vba=Vb&#x2212;a&#xd7;1/log(t)&#xd7;log(RH)&#xd7;log(P).

Magnetic recording and reproducing device having a magnetic recording head including a magnetic flux control layer between a main magnetic pole and an auxiliary magnetic pole

According to one embodiment, a magnetic recording medium including a substrate and a magnetic recording layer formed on the substrate and including a plurality of projections is obtained. The array of the plurality of projections includes a plurality of domains in which the projections are regularly arranged, and a boundary region between the domains, in which the projections are irregularly arranged. The boundary region is formed along a perpendicular bisector of a line connecting the barycenters of adjacent projections.

Magnetic recording medium and method of manufacturing the same

A perpendicular magnetic recording medium according to an embodiment includes a substrate and perpendicular magnetic recording layer. The perpendicular magnetic recording layer includes a recording portion and non-recording portion. The recording portion has patterns regularly arranged in the longitudinal direction, and includes magnetic layers containing Fe or Co and Pt as main components, and at least one additive component selected from Ti, Si, Al, and W. The non-recording portion includes oxide layers formed by oxidizing the side surfaces of the magnetic layers, and nonmagnetic layers formed between the oxide layers.

Perpendicular magnetic recording medium, method of manufacturing the same, and magnetic recording/reproduction apparatus

According to one embodiment, there is provided a magnetic recording medium manufacturing method including forming a bonding layer on a substrate, forming a holding layer containing silicon on the bonding layer, forming a single-particle layer on the holding layer using particles containing metal fusible on the bonding layer, etching SiOin the holding layer using an etching solution containing HF and HO, filling the holding layer with the particles until the particles are brought into contact with the bonding layer, bonding the particles and the bonding layer together by heating, and forming a magnetic recording layer on the single-particle layer.

Magnetic recording medium manufacturing method

According to one embodiment, disclosed is a pattern forming method including preparing a second dispersion by adding a second protective group and second solvent to fine particles including a first protective group whose surface polarity is close to that of the substrate, the fine particles containing, at least on the surface thereof, a material selected from Al, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Y, Zr, Sn, Mo, Ta, W, Au, Ag, Pd, Cu, Pt, and an oxide thereof, modifying the fine particles including the first protective group with the second protective group, adding a viscosity adjustment agent to the dispersion containing the fine particles to prepare a coating solution, and applying the coating solution on the substrate to form a fine particle layer thereon.

Pattern forming method and manufacturing method of magnetic recording medium

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Yokohama, Japan

Kaori Kimura