Hitachi, Ltd.

Hgst Netherlands, B.v.

Hitachi Chemical Company, Ltd.

Hitachi Cable, Inc.

Hitachi Powdered Metals Co., Ltd.

Hitachi-johnson Controls Air Conditioning, Inc.

Katsumi Mabuchi

Tomoko Kikuchi

Michihiko Aizawa

Heihatiro Midorikawa

Takashi Honda

Masahiko Ito

Masanori Sakai

Takuya Takahashi

Mina Amo

Tsuneo Nakamura

Haruo Akahoshi

Bruno Jean Marchon

Qing Dai

Hiroshi Yoshida

Katsumi Ohsumi

Noriyuki Ohnaka

Yasunobu Kani

Shinichi Yokosuka

Hiroshi Nakano

Kyoko Honbo

Eiji Kikuchi

Takashi Naito

Hiroki Yamamoto

Makoto Hayashi

Hiroyuki Matsumoto

Yuzuru Hosoe

Masahiro Itoh

Yoshitaka Kojima

Nobuyuki Takeda

Masahisa Inagaki

Shinichi Tachizono

Reiko Arai

Masateru Suwa

Kei Yoshimura

Shigehisa Motowaki

Mitsuhiro Shoda

Tatsuo Fujii

Isao Masaoka

Shinji Yamada

Shigeo Hattori

Hiroshi Kanemoto

Toshiaki Arato

Masatoshi Sugimasa

Masakiyo Izumiya

Takafumi Sakurada

Fumio Sato

Kimihiko Akahori

Sou Anzai

Hiroshi Yamauchi

Hiroshi Nakagawa

Yutaka Nomura

Motoko Harada

Eizi Kashimura

Ayako Tobita

An object of the present invention is to provide a product excellent in corrosion resistance and abrasion resistance. In order to achieve the above object, a laminated body according to the invention includes a substrate and a coating formed on the surface of the substrate, in which the coating includes repeated unit structures each composed of a first layer whose main component is Ni and a second layer whose main component is a metal whose electrode potential is baser than that of Ni.

Laminated body having corrosion-resistant coating, and method for manufacturing same

Provided is a working medium of the present invention for absorption refrigerators is a mixture that is to contact a carbon steel or a copper alloy that is a structural material of any one of the absorption refrigerators, and includes water and 1,4-dioxane, and further includes a corrosion inhibitor. The corrosion inhibitor includes one or more selected from the group consisting of respective hydroxides of any alkali metal and any alkaline earth metal, and respective oxoates. Thus, corrosion of the structural material of the absorption refrigerator can be restrained.

Working medium for absorption refrigerators, and absorption refrigerator using the same

A method for producing a magnetic recording medium in one embodiment includes forming a magnetic material layer above a substrate, transferring an uneven pattern to the magnetic material layer to form concave portions and convex portions, the convex portions being magnetic regions, depositing a nonmagnetic material above the concave portions to form nonmagnetic regions, forming an oxide layer and/or hydroxide layer above the magnetic regions of the recording layer, and forming an organic material layer which exhibits a corrosion-inhibiting characteristic with respect to cobalt or cobalt alloy above the oxide layer and/or hydroxide layer.

Methods of production for corrosion-resistant bit patterned media (BPM) and discrete track media (DTM)

Reliability is improved by improving adhesiveness, crack resistance, and moisture resistance of a metal member-resin jointed body by enhancing adhesiveness between the metal member and the resin. A jointed body of a metal member and a resin including: an intermediate layer and a silane coupling agent layer formed on the metal member at an interface between the metal member and the resin, wherein the silane coupling agent layer and the resin are contacted; the intermediate layer is any one of an oxide layer of the metal, a chelating agent layer, a composite layer made of the oxide layer and the chelating agent layer, and a mixed layer made of the oxide and the chelating agent; and the intermediate layer has an electrically non-insulating characteristic, and a method of manufacturing the same.

Semiconductor package having a metal member and a resin mold, which are bonded to a silane coupling agent and an intermediate layer of an oxide film

A medium having high medium S/N and excellent corrosion resistance is achieved. In one embodiment, an adhesion layer, a soft magnetic layer, an intermediate layer, a magnetic recording layer, and a protective layer are deposited, in order, on a substrate. The soft magnetic underlayer consists at least of two soft magnetic layers, the first soft magnetic layer formed on the recording layer side being composed of an amorphous alloy containing 85 at. % or less of Co, and the second soft magnetic layer formed on the substrate side being composed of an alloy containing more than 85 at. % of Co.

Perpendicular magnetic recording medium with high medium S/N

The present invention provides a metal polishing liquid capable of CMP at a high Cu polishing rate and solving the problems: (a) generation of scratches attributable to solid particles, (b) generation of deteriorations in flatness such as dishing and erosion, (c) complexity in a washing process for removing abrasive particles remaining on the surface of a substrate after polishing, and (d) higher costs attributable to the cost of a solid abrasive itself and to waste liquid treatment, as well as a method of polishing a film to be polished by using the same. Disclosed are a metal polishing liquid which comprises a metal oxidizer, a metal oxide solubilizer, a metal anticorrosive, and a water-soluble polymer having an anionic functional group with a weight-average molecular weight of 8,000 or more and has pH 1 or more to 3 or less, and a method of polishing a film to be polished, which comprises supplying the above metal polishing liquid onto a polishing cloth of a polishing platen and simultaneously relatively moving the polishing platen and a substrate having a metallic film to be polished while the substrate is pressed against the polishing cloth.

Metal polishing slurry and method of polishing a film to be polished

In one embodiment, a magnetic recording medium includes a magnetic recording layer including a magnetic material characterized by having convex and concave portions, the convex portions acting as magnetic regions, a nonmagnetic material positioned within each concave portion of the magnetic material which act as nonmagnetic regions that separate the magnetic regions, an organic material layer which exhibits a corrosion-inhibiting characteristic with respect to cobalt or cobalt alloy positioned on a nonmagnetic region side of each concave portion, and an oxide layer and/or hydroxide layer positioned adjacent the organic material layer on a magnetic region side of each concave portion of the magnetic material. In another embodiment, the magnetic recording medium may be a patterned recording layer having a protective film, and the oxide layer and/or hydroxide layer may be positioned at least in defect portions of the protective film.

Corrosion-resistant bit patterned media (BPM) and discrete track media (DTM) and methods of production thereof

This invention provides a magnetic recording medium excellent in terms of corrosion resistance. The magnetic recording medium comprises a magnetic recording layer, a protective layer and a lubricant layer provided on a nonmagnetic substrate, and the lubricant layer comprises a compound having a heterocyclic ring.

Magnetic recording media and magnetic recording system

According to one embodiment, a lubricant includes a perfluoropolyether having a chemical structure of: wherein Rf is at least one of: &#x2014;CFO(CFCFO)(CFO)CF&#x2014; and &#x2014;CFCFO(CFCFCFO)CFCF&#x2014;, with m representing 0 or a positive integer, n representing 0 or a positive integer, and k representing 0 or a positive integer, and wherein R1 to R4 are selected from a group consisting of &#x2014;H or with at least one of R1 to R4 being 

Magnetic media and magnetic recording devices using fluorine compounds

A glass composition substantially free from lead and bismuth and containing vanadium oxide and phosphor oxide as main ingredients, wherein the sintered glass of the glass composition exhibits 10&#x3a9;cm or more at 25&#xb0; C.

Glass composition and its applications

The present invention allows simple and sensitive detection of microimpurities, microdefects, and corrosion starting points which may be present in a material. A probe microscope has a function to sense ions diffused from a specimen in a liquid. A probe is caused to scan over a predetermined range on a specimen. Then, the probe is fixed to a particular position in a liquid so as to set the distance between the specimen and the probe to a given value at which the microstructure of the specimen surface cannot be observed. Thereafter, one of the current between the probe and a counter electrode and the potential between the probe and a reference electrode is controlled, and the other of the current and potential which varies in accordance with the control is measured. Thus, ions diffused from the specimen are sensed.

Probe microscope and measurement method using the same

A discrete track medium and a patterned medium that are excellent in both magnetic recording properties and corrosion resistance are realized. The medium has a magnetic recording layer, which includes a magnetic region formed in a projection portion of a projection/recess pattern over a substrate and a filler region embedded in a recess portion of the projection/recess pattern, and an organic compound, which exhibits corrosion inhibition action for cobalt or cobalt alloys, between the magnetic region and the filler region.

Magnetic recording medium, method for fabricating the same, and magnetic storage device

In an electrode in electrochemical device, particularly an anode lithium ion secondary battery, a cathode for use in alkali storage battery, an electrode for use in fuel cell, or a capacitor electrode, a metal structure has nano size micro-pillars is constructed with an electrode active material being formed on the surface of the metal structure. The metal structure having nano size micro-pillars can be formed, for example, by forming a metal layer as an electrode material by plating to the surface of a substrate having pores and then removing the substrate by dissolution, the metal filled in the pores of the substrate to form a group of micro-pillars. And the active material can be formed by depositing metal by plating. Since the active material is in direct contact with the conductive skeleton, the conducting agent for connecting the active materials to each other may not be added at all.

Electrode for use in electrochemical device, solid electrolyte/electrode assembly, and production method thereof

An absorption refrigerator includes a high temperature regenerator for heating a water solution including a halogen compound to generate steam. An oxide film having thickness of 0.02&#x2013;5.0 &#x3bc;m, one of the colors blue, purple and gray, or a hydroxyl group is formed on a surface of at least one of the high temperature regenerators and the heat exchanger.

Absorption refrigerator and production method thereof

An absorption refrigerator includes a high temperature regenerator for heating a water solution including a halogen compound to generate steam. An oxide film having thickness of 0.02-5.0 &mgr;m, one of the colors blue, purple and gray, or a hydroxyl group is formed on a surface of at least one of the high temperature regenerators and the heat exchanger.

Growing community of inventors

Hitachi, Japan

Katsumi Mabuchi