Kawasaki Steel Corporation

Jfe Steel Corporation

Sony Corporation

Toyota Jidosha Kabushiki Kaisha

Mitsubishi Heavy Industries Limited

The University of Tokyo

Mitsubishi Heavy Industries Compressor Corporation

Masaki Kawano

Michiro Komatsubara

Mitsumasa Kurosawa

Yuka Komori

Makoto Fujita

Minoru Takashima

Atsuhito Honda

Takahiro Kojima

Kazuaki Tamura

Keiji Sato

Kiyoshi Nakanishi

Yasuyuki Hayakawa

Shinji Katsuki

Kuniaki Ogura

Toyoaki Yasui

Shigeaki Takajo

Yuya Konno

Kazumichi Sashi

Yoshihiro Ozaki

Akio Fujita

Toshiro Kobayashi

Masaaki Kohno

Kazuto Kobayashi

Kaoru Sato

Takashi Fukushima

Katsumi Yamada

Kazuo Watanabe

Takeshi Omura

Takahito Seki

Takashi Obara

Tatsufumi Aoi

Yasumasa Kodama

Hiroshi Ohtsubo

Mitsuo Kato

Ujihiro Nishiike

Kyoichi Ikeno

Hirotake Ishitobi

Yoshiaki Maeda

Shinichi Yoshikawa

Takashi Hishinuma

Shigenari Horie

Takafumi Suzuki

Tomoki Kodama

Hiroaki Ogasawara

Hideaki Takatani

Teruyoshi Abe

Chihoko Takizawa

Keiji Sakai

Toshiro Fujiyama

Masayuki Sakaguchi

Takehide Chou

Keisuke Yoshimura

Tsuyoshi Haneda

Masako Hisata

Kouji Yano

Takehide Kawamichi

Keisuke Kotani

Yoshitaka Tsumoto

A multilayer structure includes: a base material made of an iron-based metal material; a nitride layer that is provided on a surface of the base material through a nitriding treatment performed to the base material; an intermediate layer provided on a surface of the nitride layer; and a DLC layer provided on a surface of the intermediate layer. The intermediate layer is made of SiN, and the DLC layer has a thickness of 2 &#x3bc;m to 10 &#x3bc;m.

Multilayer structure and machine component having multilayer structure

In a process for manufacturing a coated steel sheet such as a coated electromagnetic steel sheet using a water-based coating liquid containing an organic resin, to perform steps subsequent to an annealing step continuously at high speed without causing appearance defects such as coating unevenness; to provide an electromagnetic steel sheet having an insulating film thereon, in which properties of the film are satisfactory, superior weldability and punchability can be obtained without deteriorating the space factor, and the satisfactory film properties can be maintained even if the electromagnetic steel sheet having the insulating film thereon is temper-rolled. A coating liquid is applied onto an untreated steel sheet. The applied liquid is heated on the side close to the steel sheet in such a manner that the time elapsed until the steel sheet temperature is increased to 100&#xb0; C. after the application is completed is 10 seconds or less, thereby drying the coating liquid. The steel sheet temperature is further increased to a predetermined temperature, thereby forming a coating film. When insulating films for electromagnetic steel sheets are formed, the coating liquid preferably further contains a water based inorganic component.

Method for producing coated steel sheet

A polymer complex having two or more kinds of channel groups through which specific compounds ranging from gaseous small molecules to large molecules such as proteins and other biomolecules can be selectively incorporated and/or released and/or transported is provided. The polymer complex includes an aromatic compound ligand, a central metal ion, and an uncoordinating aromatic compound. In the polymer complex, the uncoordinating aromatic compound is intercalated between aromatic compound ligands in a three-dimensional coordination network. Each of two or more kinds of channel groups contains channels identical with one another and having inherent affinity for guest components. The uncoordinating aromatic compound has a specific substituent A at a specific position on the aromatic ring thereof, and the uncoordinating aromatic compound is arranged regularly such that the substituent A is directed to the inside of a specific channel group B out of the two or more kinds of channel groups.

Polymer complex

Disclosed is a synthesis method for synthesizing in a short time and selectively a microcrystal of a polymer complex having three three-dimensionally and regularly arranged channels. Specifically disclosed is a synthesis method of a polymer complex crystal wherein (1) a metallic solution, which is a mixture of zinc halide(II) and a solvent A that can dissolve the zinc halide, is mixed with (2) a ligand solution, which is a mixture of a tridentate ligand that has three coordination sites coordinated to zinc of the zinc halide and a solvent B that can dissolve the tridentate ligand, to be a single-phase solution, thereby synthesizing a microcrystal of a polymer complex having a three-dimensional coordination network formed by coordinating the tridentate ligand to the zinc and having channels that are three-dimensionally and regularly arranged in the three-dimensional coordination network.

Synthesis method of polymer complex crystal

An embodiment of the present invention includes a method for chemically modifying inner surfaces of channels capable of further regulating characteristics of the internal environment of channels, by forming a polymer complex having a specific channel group B, the channel environmental characteristics of which are regulated by substituents A, followed by utilizing the channels of the channel group B as a reaction field to convert the substituent A to a different substituent. The method may comprise including a guest molecule in the channel of the channel group B in which the substituents A are arranged; and reacting the guest molecule with the substituent A in the channel to convert the substituent A to a substituent A', and to arrange the substituent A&#x2032; regularly directing to the inside of the channel of the channel group B or any channel of other channel groups.

Polymer complex having channels and method for chemically modifying inner surfaces of channels of polymer complex

In a part for a rotary machine, a ceramic hard film is formed on a surface of a base material, the density of droplets which exist in a surface of the ceramic hard film is set to be within 1000 pieces/mm, and the density of droplets whose mean particle diameter is 1 &#x3bc;m or less is set to be within 550 pieces/mm. A method for manufacturing the part of a rotary machine is a method for forming the ceramic hard film by at least an ion plating method or a sputtering method.

Part for rotary machine, and manufacturing method therefor

An object is providing an electrostatic attraction apparatus and an attracting/releasing method capable of reliably attracting and quickly releasing a glass substrate. An attraction force for attracting a glass substrate is obtained according to the physical properties of the glass substrate. In addition to obtaining an attraction voltage (V(t)) required for obtaining the attraction force, a holding voltage (V(t)) for holding an attraction state and a release voltage (V(t)) for releasing the glass substrate are also obtained (Sto S). Attraction time period (t) is actually measured and if this measured time is different from a preset attraction time (t), the holding voltage (V(t)) and the release voltage (V(t)) are recalculated according to the actually measured attraction time period (t) (Sto S).

Electrostatic attraction apparatus for glass substrate and method of attracting and releasing the same

When a non-oriented electrical steel sheet is manufactured, simultaneously having superior magnetic properties and high strengths, a composition containing 0.02% or less of C, 4.5% or less of Si, 5.0% or less (including 0) of Ni, and 0.2% to 4.0% of Cu is used, and a solute Cu is allowed to appropriately remain in finish annealing. In the steel sheet thus obtained, finely shaped Cu is precipitated by aging treatment, and while the magnetic properties are not degraded, the yield stress is increased to not less than CYS (MPa) represented by the following formula:note=180+5,600[% C]+95[% Si]+50[% Mn]+37[% Al]+435[% P]+25[% Ni]+22

Non-oriented electrical steel sheet and method for manufacturing the same

An Fe&#x2014;Cr&#x2014;Si based non-oriented electrical steel sheet contains 2.5% to 10% by mass of Si, 1.5% to 20% by mass of Cr, 0.006% by mass or less of C, 0.002% by mass or less of N, 0.005% by mass or less of S, 0.005% by mass or less of Ti, 0.005% by mass or less of Nb, and as necessary, 0.1% to 2% by mass of Al and at least one of 0.005% to 1% by mass of Sb and 0.005% to 1% by mass of Sn, and the balance being Fe and incidental impurities, wherein the electrical resistivity of the steel is 60 &#x3bc;&#x3a9;cm or more, and the number of nitrides containing chromium per mmin the interior of the steel sheet is 2,500 or less. Consequently, the problem that high electrical resistance resulting from the high Si content and high Cr content is not satisfactorily utilized is advantageously solved, and it is possible to provide a non-oriented electrical steel sheet having excellent magnetic properties in the high-frequency range, in particular, in a frequency range of 1 kHz or more.

Fe-Cr-Si based non-oriented electromagnetic steel sheet and process for producing the same

A magnetic steel sheet with an insulating coating having a good punchability, high sliding performance, excellent handleability in processing, and good uniformity and adhesiveness is achieved by forming a chromium-free insulating coating containing 20 parts by mass or more and 90 parts by mass or less of fluorocarbon resin as a top layer coating of the magnetic steel sheet, and preferably making the kinetic friction coefficient of a surface of the insulating coating 0.3 or less.

Electrical sheet having insulating coating and insulating coating

There is provided a hydrogen separation membrane capable of providing high hydrogen permeability and accommodating an increase in pressure difference, a hydrogen separation unit, and a manufacturing method for a hydrogen separation membrane. The hydrogen separation unithas a hydrogen separation membraneand a metallic porous support sheetattached to the hydrogen separation membrane. By forming a plurality of pits in the surface of the hydrogen separation membrane, a thick-wall portionhaving a large thickness and a thin-wall portionhaving a small thickness are provided on the hydrogen separation membrane. Also, as a method for forming pits i.e. thin-wall portions, etching process is used.

Hydrogen separation membrane, hydrogen separation unit, and manufacturing method for hydrogen separation membrane

Non-oriented magnetic steel sheets, which are mainly used as materials for iron cores for use in electric apparatuses, have a low iron loss and a high magnetic flux density at the same time. The non-oriented magnetic steel sheet comprises from about 1.5 to about 8.0 weight % Si, from about 0.005 to about 2.50 weight % Mn, and not more than about 50 ppm each of C, S, N, O, and B, in which a crystal orientation parameter <&Ggr;> is 0.200 or less. In addition, the average crystal grain diameter is preferably from about 50 to about 500 &mgr;m, and an areal ratio of crystal grains on a surface of the steel sheet is preferably 20% and less, in which crystal plane orientations of the crystal grains are within 15&deg; from the <111> axis. In addition, the non-oriented magnetic steel sheet preferably contains small amounts of elements such as Al, Sb, Ni, Sn, Cu, P, and Cr. The manufacturing method for the non-oriented magnetic steel is also described.

Non-oriented magnetic steel sheet having low iron loss and high magnetic flux density and manufacturing method therefor

A finish annealed non-oriented electromagnetic steel sheet includes about 0.01 wt % or less of C, greater than about 1.0 wt % and at most about 3.5 wt % of Si, at least about 0.6 wt % and at most about 3.0 wt % of Al, at least about 0.1 wt % and at most about 2.0 wt % of Mn, at least about 2 ppm and at most about 80 ppm of one or more rare earth metals (REM), a maximum content of Ti and Zr being about 15 ppm and 80 ppm, respectively, wherein oxygen on the surface layer of the steel sheet is 1.0 g/e or less. Since the non-oriented electromagnetic steel sheet has desirable mechanical properties resulting from the increased amounts of Si and Al, a high magnetic flux density can be maintained without sacrificing a punching property as well as very low iron loss can be obtained even after stress relief annealing.

Non-oriented electromagnetic steel sheet having excellent magnetic properties after stress relief annealing and method of manufacturing the same

Manufacturing semiprocessed non-oriented magnetic steel sheets, which has superior workability in steps of assembling cores for motors or the like, in which improvement in productivity and higher accuracy of the products can be realized, by hot rolling a steel slab containing about 0.001 to 0.03 wt % C, about 0.1 to 1.0 wt % Si, about 0.01 to 1.0 wt % Al, about 0.05 to 1.0 wt % Mn, and about 0.001 to 0.15 wt % P, cold rolling the hot rolled sheet, continuous annealing the cold rolled sheet, and skin pass rolling the annealed sheet, wherein the average cooling rate in the continuous annealing process is about 10&deg; C./second or more and skin pass rolling is performed at a reduction rate of about 0.5 to 5% within about 20 hours after continuous annealing.

Method for manufacturing magnetic steel sheet having superior workability and magnetic properties

Growing community of inventors

Tokyo, Japan

Masaki Kawano