Showa Denko K.k.

Kabushiki Kaisha Toshiba

Showa Denko Kabushiki Kaisha

Nippon Soda Co., Ltd.

Toyama Chemical Co., Ltd.

Other

Toshiba Corporation

Waseda University

A School Corporation Kansai University

Hiroshi Sakai

Akira Sakawaki

Kenji Shimizu

Soichi Oikawa

Takashi Hikosaka

Futoshi Nakamura

Takeshi Iwasaki

Tomoyuki Maeda

Isamu Saikawa

Takashi Yasuda

Shuntaro Kinoshita

Shohachi Murakami

Hisatsugu Tsuda

Toyoo Maeda

Masahiro Takahata

Kazunori Ohnami

Takako Hori

Ryuji Sakaguchi

Kazumi Jyujyo

Hideaki Takahoshi

Hisashi Minami

Yoshiko Yamamoto

Masato Kokubu

Hiro Mochizuki

Daisuke Amiya

Tadahiro Kondo

Kayoko Tada

Kenzo Tamai

Akira Yotsuji

Hiroshi Kanazawa

Masatoshi Sugita

Kazuo Kobayashi

Tetsuya Osaka

Mikio Suzuki

Masaru Tai

Susumu Mitsuhashi

Yutaka Takashita

Michiko Mae

Kazumi Hamakawa

Hui Yang

Masakazu Kobayashi

Hirokazu Narita

Hiroyuki Imaizumi

Nobuo Matsui

Atsushi Ogihara

Minako Yotsuji

Toshio Aihara

Hidekazu Miyazaki

Satoshi Kodama

Junichi Mitsuyama

Keiko Takakura

Tetsuya Kajita

Hidetada Mikami

Toshihiko Yoshikawa

Kenichi Takashima

Katsumi Shimizu

Toshinori Ohashi

Eishin Yamakawa

Hiroshi Tani

Hideo Ogiwara

Hiroshi Ohsawa

Kazuki Shindo

Akira Itoh

Kenichi Yoneyama

Kazunori Onami

Kayoko Nomura

An object of the present invention is to provide a recording material or a recording sheet using, as a color-developing agent, a non-phenol-based compound good in color developing performance and the like. A compound represented by the following formula (I) is used as the color-developing agent: (wherein X represents CHor the like; Rto Reach independently represent a hydrogen atom, a halogen atom or the like; n1 and n3 each independently represent any integer of 1 to 5; two groups represented by Radjacent to each other on a benzene ring optionally bond to each other to form an optionally substituted 6-membered ring; and n2 represents any integer of 1 to 4).

Recording material and compound

A recording material and a recording sheet having better color-developing performance, storage stability, etc. A recording material which contains (A) at least one color former, (B) at least one compound selected from the group including compounds represented by the following formula (I), and (C) at least one compound selected from the group including compounds represented by the following formula (II) (wherein Rto Reach represent a halogen atom, a nitro group, a Cto Calkyl group, a Cto Calkoxy group, a Cto Calkenyl group or a Cto Chaloalkyl group, n1 and n3 each independently represent any integer of 0 to 5, n2 represents any integer of 0 to 4, and X represents &#x2014;SO&#x2014;O&#x2014; or &#x2014;O&#x2014;SO&#x2014;). 

Recording material and recording sheet

A recording material and a recording sheet having excellent color-developing performance and storage stability and particularly having excellent heat-resistance of background. The recording material contains a color former (A), a compound represented by formula (I) (B), and a compound represented by formula (II) (C). 

Recording material, and recording sheet

A film production method for producing a thin film on a surface of a workpiece, including the steps of: disposing the workpiece in a chamber; supplying a process gas into the chamber with the inside of the chamber being maintained at a predetermined pressure; applying a light having an energy between 3 eV and 10 eV to the surface of the workpiece to cause a photoelectron to be emitted from the surface of the workpiece; and applying an AC electric field to the surface of the workpiece, wherein the AC electric field has an electric field intensity causing a Townsend discharge to occur without generating a glow discharge plasma.

Method for producing a thin film, method for producing a magnetic disk, method for producing a nanoimprint mold, and apparatus for producing a thin film

The disclosure provides a novel crystal form of N-(2-(3-phenylureido)phenyl)benzenesulfonamide, which is crystalline modification thereof specified by an X-ray diffraction diagram having peaks at diffraction angles (2&#x3b8;&#xb1;0.1&#xb0;) of 23.60&#xb0;, 20.80&#xb0;, 12.24&#xb0; and 13.80&#xb0; in a powder X-ray diffractometry using Cu-K&#x3b1; ray.

Crystalline modification of N-(2-(3-phenylureido)phenyl)benzenesulfonamide and recording material using same

An object of the invention is to provide a recording material and recording sheet having excellent color-developing performance, storage stability, etc. A recording material having good color-developing performance and storage stability may be obtained by using a specific compound having a benzhydrol skeleton as an additive in a recording material employing color development through a reaction between a color former and a color-developing agent.

An object of the present invention is to provide a recording material or a recording sheet using, as a color-developing agent, a non-phenol compound that is a safe compound in no danger of corresponding to an endocrine disruptor and is good in color developing performance. The non-phenol compound used in the present invention is at least one selected from the group consisting of compounds represented by the following formulas (I) to (III). 

Recording material produced using non-phenol compound

A magnetic recording medium may have a stacked structure including a first soft magnetic layer, an orientation control layer, a lower recording layer, an intermediate layer, and an upper recording layer that are sequentially stacked, and a second soft magnetic layer provided between the lower recording layer and the intermediate layer.

Magnetic recording medium and magnetic storage apparatus

A magnetic recording medium may include a stacked structure of orientation control, lower recording, intermediate, and upper recording layers. The lower recording layer has a coercivity higher than that of the upper recording layer. The lower recording layer includes a first layer with a granular structure that includes magnetic particles including Co, Cr, and Pt, and an oxide covering a periphery of the magnetic particles, and a second layer with a non-granular structure that includes magnetic particles including Co, Cr, and Pt. The lower recording layer includes columnar crystals continuous with crystal particles forming the orientation control layer in a stacking direction of the stacked structure.

A magnetic recording medium may include an orientation control layer, a lower recording layer, an intermediate layer, and an upper recording layer that are stacked. The lower recording layer may have a coercivity higher than that of the upper recording layer, and the intermediate layer may include a layer including a magnetic material and having a saturation magnetization of 50 emu/cc or higher. The upper recording layer may include columnar crystals continuous with crystal particles forming the intermediate layer in a direction in which the layers are stacked.

A servo information recording method continuously records servo information in a radial direction of a magnetic disk on a plurality of concentric tracks or on a single spiral track of a first recording layer that forms a magnetic layer of the magnetic disk together with a second recording layer to which data are recorded and from which data are reproduced, wherein the first recording layer has a coercivity higher than that of the second recording layer, and partially overlaps two mutually adjacent tracks when continuously recording the servo information on an entire surface of the first recording layer.

Servo information recording method and magnetic storage apparatus

An object of the present invention is to provide a recording material or a recording sheet that is excellent not only in whiteness of a background but also in storage property for a background and an image, and further has excellent dynamic sensitivity. In order to achieve the object, a phenol compound represented by Formula (I) [wherein Rrepresents a hydroxyl group or a halogen atom, p represents 0 or an integer of 1 to 5, Rand Reach independently represent a hydrogen atom or a C-Calkyl group, Rrepresents a hydrogen atom, a C-Calkyl group, an optionally substituted phenyl group or an optionally substituted benzyl group; and a bond shown with a wavy line represents E- or Z-form, or a mixture thereof] and having a color space b* of 10 or less, and preferably having brightness by Hunter of 75 or more, is used as a recording material.

Recording material using phenol compound

An object of the present invention is to provide a recording material or a recording sheet that is excellent in background and image stabilities and further excellent in color-developing sensitivity. The recording material of the present invention contains a color-forming compound, an additive, and at least one compound represented by formula (I) [wherein Rand Reach independently represent a C-Calkyl group or the like; p represents 0 or any integer of 1 to 4; q represents 0 or any integer of 1 to 5; when p and q represents 2 or more, each of Rand each of Rare the same or different; Rand Reach independently represent a hydrogen atom or the like; Rrepresents a hydrogen atom or the like; and the bond represented by the wavy line represents E, Z, or a mixture thereof].

Recording material using phenolic compound

An object of the present invention is to provide a recording material that is excellent in color-developing properties and background and image stabilities, and a compound used therein. The present invention relates to a compound represented by the formula (I) [wherein Rto Reach independently represent a halogen atom or the like; n, p, q, and r each independently represent 0 or any integer of 1 to 4; m represents 0 or any integer of 1 to 2; a represents any integer of 1 to 10; Rrepresents a hydrogen atom or the like; Rrepresents an ORgroup or the like; and Rand Reach independently represent a hydrogen atom or the like], a composition containing the compound, a method for producing the compound, a recording material containing at least one compound represented by the formula (I), and a recording sheet having the recording material.

Phenolic compound and recording material

A perpendicular magnetic recording medium includes: a substrate; at least one underlayer formed above the substrate; and a perpendicular magnetic recording layer formed above the at least one underlayer, an easy magnetization axis of the perpendicular magnetic recording layer being oriented perpendicular to the substrate, the perpendicular magnetic recording layer including magnetic crystal particles and grain boundaries surrounding the magnetic crystal particles, wherein the grain boundaries contain an oxide of silicon and at least one element selected from the group consisting of Li, Na, K, Rb, Cs, Ca, Sr, and Ba, and the ratio of a total amount of substance of Si, Li, Na, K, Rb, Cs, Ca, Sr, and Ba in the perpendicular magnetic recording layer is no less than 1 mol % and no more than 20 mol %.

Perpendicular magnetic recording medium, manufacturing method therefor, and magnetic read/write apparatus using the same

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Ichihara, Japan

Hiroshi Sakai