Pioneer Corporation

Tdk Corporation

Nuflare Technology, Inc.

Yasuo Hosoda

Ayumi Mitsumori

Masataka Yamaguchi

Satoshi Jinno

Megumi Sato

Hiroyasu Inoue

Koji Mishima

Tetsuya Iida

Masaki Aoshima

Takanobu Higuchi

Hideo Kudo

Osamu Kasono

Tomoyuki Miyamoto

Takao Tagiri

Tetsuya Imai

Takahiro Togashi

Yoichi Okumura

Katsunori Obata

Megumi Fujimura

Tomoaki Izumi

An electromagnetic wave transmission cable for transmitting an electromagnetic wave comprises a hollow waveguide tube and a foamed resin member. The hollowing waveguide tube includes a hollow dielectric layer formed in a tubular shape. The foamed resin member is provided over a predetermined length in a longitudinal direction of the hollow waveguide tube and covers a surface of the dielectric layer to surround an outer periphery of the hollow waveguide tube.

Electromagnetic wave transmission cable including a hollow dielectric tube surrounded by a foamed resin member having different expansion ratios at different regions therein

A signal generating unit of a formatter inputs a misalignment amount &#x3b4; unique to an individual recording apparatus and record data into a record signal compensation unit, and in accordance with these the record signal compensation unit generates a compensated beam deflection signal and substrate velocity signal to a beam unit and rotation and movement drive unit. With this arrangement, it is possible to perform compensation which matches errors in individual unit, in response to the errors (mechanical errors) in assembly dimension precision of parts and control precision of control devices which can vary among individual unit of the recording apparatus.

Recording system, recording apparatus, and record control signal generating apparatus using an exposure beam

An oxide material () is used as masking for patterning by etching which is performed with respect to a substrate or a material laminated on the substrate (). The oxide material is also used in a multi-step etching which is performed by using a resist () formed on the oxide material as a mask. The etching rate of the oxide material for a reaction gas containing an inert gas or hydrogen is higher than the etching rate of the resist for the reaction gas containing an inert gas or hydrogen, while the etching rate of the oxide material for a fluorine-containing gas is lower than the etching rate of the material, which is to be patterned by using the oxide material as a mask, for the fluorine-containing gas. In addition, the oxide material is soluble in a weak acid.

Oxide material, patterning substrate, method of forming a pattern, method of producing an imprint transfer mold, method of producing a recording medium, imprint transfer mold, and recording medium

A polycrystalline aluminum thin film is made of polycrystals of an alloy of aluminum. The polycrystalline aluminum thin film includes a first additive which is distributed with even concentration over an inside of each crystal grain and an interface of the crystal grain and a second additive which is distributed with higher concentration in the interface of the crystal grain than in the inside of the crystal grain.

Polycrystalline aluminum thin film and optical recording medium

After a transfer material was hardened in a situation an imprint mold which has a concave part pattern is forced against the liquid transfer material, a replica which has a convex part pattern corresponding to the concave part pattern by releasing the imprint mold. A pressurization mechanism and a vacuum pump are set, regarding depth K of the concave part pattern of the imprint mold, height k of the convex part pattern of the transfer material, effective pressure Mo while the imprint mold is forced, pressure P in the space, with satisfying: Mo/P&#x2267;k/(K&#x2212;k). With this arrangement, even if air comes inside of the concave part pattern of the imprint mold and is stuffed in the inside, it is possible to have transcription with no problem.

Imprinting device and imprinting method

The main object of the present invention is to provide an optical recording medium with no need to use a control subject substance of the PRTR law, capable of using for an optical recording device with a blue laser, and giving consideration to the environmental aspect. To attain the object, the present invention provides an optical recording medium comprising: a reflective layer containing an aluminum composition as the main component including both aluminum or an aluminum alloy and a metal oxide of a metal other than aluminum; and a dielectric protective layer, formed in contact with the reflective layer, containing a niobium composition as the main component including both silicon dioxide or titanium dioxide and a niobium nitrided oxide.

Optical recording medium

The invention mainly intends to provide a resist material that is high in the sensitivity to light and an electron beam and enables to form a clear and fine pattern with less exposure. In order to achieve the object, the invention provides a resist material comprising a metal compound, wherein a metal element constituting the metal compound is a 14group or 15group metal element and the metal compound is a stoichiometrically incomplete compound.

Resist material and electron beam recording resist material

An information recording medium has an excellent jitter characteristic with a considerable difference in reflectance between prior to and subsequent to recording. The information recording medium includes a recording layer which contains a material having a reflectance which varies by irradiation of a light beam, on which information is recorded as reflectance variations, and a substrate for supporting the recording layer, the recording layer including a metal nitride as a major component. In a method of manufacturing the information recording medium having a recording layer which includes a material having a reflectance which varies by irradiation of a light beam, on which information is recorded as reflectance variations, and the substrate for supporting the recording layer, the recording layer including a metal nitride as a major component, the method includes a recording layer forming step for forming the recording layer by a reactive sputtering method which uses a target comprised of a metal constituting a metal nitride, wherein a flow ratio Ar:Nin an atmosphere including Ar and Nin the recording layer forming step is set within the range of 80:10 to 10:80.

Information recording medium and process for producing the same

An optical recording medium includes a recording layer containing an alloy represented by a general formula: (TiM)M, where element Mis Si or Al, element Mis an element selected from the group consisting of Si, Al and Fe and different from the element M, x is equal to or larger than 0.3 and equal to or smaller than 0.8, and y is equal to or larger than 0.75 and equal to or smaller than 1. The thus constituted optical recording medium only places minimal load on the global environment.

Optical recording medium, method for manufacturing the same and target used for sputtering process

An optical recording medium includes a recording layer containing as a primary component an alloy containing at least two elements selected from the group consisting of Fe, Al and Si and the alloy contained in the recording layer as a primary component has a composition [x, y, z] in terms of the ternary composition diagram that falls within a region of a pentagon defined by straight lines connecting points [57, 43, 0], [0, 55, 45], [15, 0, 85], [89, 11, 0] and [0, 16, 84] in the ternary composition diagram. According to the thus configured optical recording medium, only minimal load is placed on the global environment.

An object of the present invention is to provide a phase-change optical recording medium of an amorphous recording mark type. The optical recording medium is a write once type medium capable of decreasing the degradation of an information signal which has been already recorded. The recording layer of the optical recording medium according to the present invention includes a first recording layer and a second recording layer. The first recording layer comprises a first composition which can be changed into another composition more stable in an amorphous state by combining with a component included in the second recording layer.

Write once optical recording medium

A film constitution in an optical recording medium including a light incident side substrate and a light reflecting side substrate cooperatively acting as a base of the medium, and includes, between these substrates, those layers formed by sputtering so as to constitute a laminated structure, which layers include: a phase-change recording layer to be phase-changed between an amorphous phase and a crystal phase by laser light irradiation; a first dielectric layer and a second dielectric layer, each having a protective function and an optical adjusting function for the phase-change recording layer; a reflecting film layer for reflecting the laser light transmitted through the phase-change recording layer; a hardness enhancing layer for enhancing the mechanical strength of the medium; and a protecting layer having a function for reducing thermal damages to the light incident side substrate and an optical adjusting function.

Growing community of inventors

Saitama, Japan

Yasuo Hosoda