Alps Electric Co., Ltd.

Unimatec Co., Ltd

National Institute for Materials Science

Honda Motor Co., Ltd.

Japan Atomic Energy Research Institute

Hitachi, Ltd.

The Furukawa Electric Co., Ltd.

National Research Institute for Metals

Hideki Abe

Seiichiro Murata

Hideaki Kitazawa

Katsuyuki Sato

Shinji Kikuchi

Keisuke Kokin

Junichi Hosogoe

Masayosi Horiuti

Tsuguhisa Hayashida

Akiyuki Matsushita

Kenji Yoshii

Junichiro Mizuki

Haruyoshi Tatsu

Michiya Okada

Yoshio Nuiya

Kazuhide Tanaka

Masayoshi Nakagawa

Masaya Takahashi

Kazuhiko Kurusu

Yoshikazu Tsuzuki

Yasuo Takagi

Yusuke Takahashi

Satoshi Kurihara

Ji-Shan Jin

Sumiko Mouri

Mariko Wakae

Tohru Nakazawa

Hijiri Kito

Shozo Ikeda

Hitoshi Homma

Takehiko Matsumoto

Yoshifusa Kanazawa

Kunji Murano

Koji Nagao

Motoharu Imai

Akira Miyaji

The present disclosure relates to a method for producing metal oxide nanoparticles includes a first step of preparing a reaction solution containing a metal complex, an alcohol, and water; a second step of heating the reaction solution for phase-separation under a hermetically sealed atmosphere where the volumetric expansion ratio of the reaction solution reaches 5 to 15%; a third step of holding the reaction solution heated in the second step for 30 minutes or more for dehydrating the metal complex to precipitate the metal oxide nanoparticles; and a fourth step of collecting the metal oxide nanoparticles after the metal oxide nanoparticles are cooled.

Method for producing metal oxide nanoparticles

A wiper holder to which a wiper is attached has an attachment surface including a positioning boss configured to position the wiper by being passed through a positioning hole in the wiper, a positioning protrusion configured to position a first edge of the wiper, and a swage boss configured to receive a second edge of the wiper. The first edge of the wiper contacts the positioning protrusion to position the first edge of the wiper and the wiper is secured to the wiper holder by the swage boss being swaged while the positioning boss is passed through the positioning hole in the wiper and the second edge of the wiper being received by the swage boss.

Wiper attachment structure and wiper attachment method

A side stand switch includes a case member having a fixed contact; and a rotor body having a moving contact that can come into contact with the fixed contact, mounted by tightening a securing bolt, and turned together with a side stand bar with respect to the case member. The rotor body has an engagement pin inserted therein and to be inserted into an engagement hole formed in the side stand bar. A width of the engagement pin in the turning direction of the rotor body is larger at a base portion inside the rotor body than at a tip portion protruding from the rotor body.

Side stand switch and side stand device

A fluorine-containing polymer comprising a fluoroalkyl alcohol (meth)acrylic acid derivative represented by a general formula, CF(CHCF)(CFCF)(CHCH)OCOCR&#x2550;CH(in the formula, R is a hydrogen atom or a methyl group, n is an integer of 1 to 6, preferably 2 to 4, a is an integer of 1 to 4, b is an integer of 0 to 3, and c is an integer of 1 to 3) containing in 5 to 100 wt % as a polymerization unit. A organic solvent solution or aqueous dispersion of the fluorine-containing polymer is effectively used as, for example, a surface-modifying agent such as a water- and oil-repellent or an oil barrier.

Fluorine-containing polymer and surface-modifying agent containing the same as active ingredient

A fluorine-containing polyether carboxylic acid amide represented by the general formula: CFO(CFO)RfCONHAr, wherein Rf is a fluorocarbon group having 1 to 2 carbon atoms, Ar is a nitrogen-containing heterocyclic group, n is an integer of 1 to 3, and m is an integer of 10 to 30, is produced by reacting a fluorine-containing polyether carboxylic acid fluoride represented by the general formula: CF(CFO)RfCOF, wherein Rf, n, and m are as defined above, with a nitrogen-containing heterocyclic amine compound represented by the general formula: ArNH, wherein Ar is as defined above; wherein the reaction is carried out while a reaction temperature is first increased to 80 to 100&#xb0; C., and then increased at a temperature increase rate that produces a temperature difference of 3 to 5&#xb0; C. after 48 hours.

Method for producing fluorine-containing polyether carboxylic acid amide

An object is to provide a liquid level sensor device for liquefied gas enabling measurement on a liquid level of liquefied gas having a boiling point in the vicinity of 21 K, e.g. liquid hydrogen, accurately and with good reproducibility and enabling simple production with good reproducibility. The present invention is a liquid level sensor device for liquefied gas including compound containing magnesium and boron arranged in succession in the longitudinal direction over the entire or a part of surface of a linear conductor made of metal and a portion of the compound thereof dipped in liquid is in a superconductive state at liquid level measurement.

Liquid level sensor device for liquefied gas

An injection-molded body according to the present invention includes a tubular body portion, an airtight seal surface formed on a peripheral surface of the body portion near one end of the body portion, and a plurality of undercuts disposed at positions around the peripheral surface of the body portion that are closer to the end than the airtight seal surface is. The undercuts prevent a seal member mounted on the airtight seal surface from falling off, in which a clearance is formed between a peripheral wall and the undercuts. The peripheral wall defines an inner hole of the body portion, and the clearance accommodates deformation of the undercuts in radial directions.

Injection-molded body

A fluorine-containing polyether phosphonic acid ester compound represented by the following general formula:(RO)(RO)P(O)(CH)CF(CF)[OCFCF(CF)]O(CF)CO[CF(CF)CFO]CF(CF)(CH)P(O)(OR)(OR)(where R, R, Rand Rare hydrogen atoms, alkyl groups, cycloalkyl groups, aryl groups, alkylaryl groups, aralkyl groups, or any of the foregoing groups substituted with halogen atoms, and subscripts a, b, c, d, and e are in conditions of 2&#x2266;a+e&#x2266;8, b+d&#x2266;28, and 1&#x2266;c&#x2266;10, and subscripts b and d may be 0). The fluorine-containing polyether phosphonic acid ester compound is produced by reaction of a fluorine-containing polyether dialkyl halide represented by the following general formula:X(CH)CF(CF)[OCFCF(CF)]O(CF)O[CF(CF)CFO]CF(CF)(CH)X (X: Cl, Br or I) with a phosphite compound represented by the following general formula:(RO)(RO)P(OR) and/or (RO)(RO)P(OR) (R: a hydrogen atom or a lower alkyl group).

Fluorine-containing polyether phosphonic acid ester compound and process for producing the same

A polyfluoroalkyl alcohol, or a (meth)acrylic acid derivative thereof, represented by the following general formula:CF(CHCF)(CFCF)(CHCH)OR(R:H or (meth)acrylic acid group; n: 1-6; a: 1-4; b: 1-3; and c: 1-3). Polyfluoroalkyl alcohol (R: hydrogen atom) can be produced by reaction of fluoroalkyl iodide represented by the following general formula:CF(CHCF)(CFCF)(CHCH)Iwith N-methyl formamide, followed by hydrolysis in the presence of an acid catalyst, whereas polyfluoroalkyl alcohol (meth)acrylic acid derivative (R: (meth)acrylic acid group) can be produced by reaction of the polyfluoroalkyl alcohol with (meth)acrylic acid.

Polyfluoroalkyl alcohol, or (METH)acrylic acid derivative thereof, and process for producing the same

An electrode is steeped in a solution of Mg and B and a negative voltage is applied to the electrode so as to precipitate superconductive MgBon the electrode. Superconductive MgBis easily manufactured in various forms and at low costs without any special device.

MgB2 superconductor and method for preparation thereof

A very small amount of copper chloride or zinc oxide is added to a mixture of magnesium chloride, potassium chloride, sodium chloride and magnesium borate, a mixed salt is melted under heat, electrodes are inserted into a molten salt and a metallic material employed as a cathode is electroplated with a magnesium diboride (MgB) film.

[object Object]

A magnetic head actuator provided with a finely movable tracking device having a piezoelectric element is provided for easy wiring to the piezoelectric element and reducing problems such as wire breakage and continuity defects. In the magnetic head actuator, a portion of an FPC board resin base is removed to expose a portion of the feeding line that extends onto a voltage impressing electrode. An electrical and mechanical connection is made between the electrode and the exposed portion of the feeding line by ultrasonic bonding, Au ball bonding, or stud bumping.

Magnetic head actuator having finely movable tracking device

A method for electrochemical synthesis of a superconducting boron compound MgBwhich comprises the steps of preparing a powder mixture of magnesium chloride, sodium chloride, potassium chloride and magnesium borate, drying the mixture by electrical heating at a temperature of 400&#xb0; C. or below under an inert gas atmosphere, and further heating the mixture electrically at a temperature of 400&#xb0; C. or above so that it is melted and undergoes chemical reaction.

Disclosed is a highly reliable rotary sensor capable of preventing radial eccentricity of the rotation shaft and performing correct detection. The rotary sensor includes a rotating member having a rotation shaft, a rotation detecting device for detecting the rotation of the rotating member, a bearing having a shaft hole into which the rotation shaft is inserted and which rotatably supports the rotation shaft integrally with the rotating member, and a biasing device for imparting a biasing force in a thrust direction to the rotation shaft, wherein there is formed in the periphery of one end portion of the shaft hole a beveled portion inclined so as to be outwardly flared in the radial direction A of the shaft hole, and wherein the rotating member is provided with a tapered surface corresponding to the beveled portion, the tapered surface being held in press contact with the beveled portion by the biasing force of the biasing device.

Rotary sensor in which sensor rotation shaft is prevented from becoming eccentric

A rotary sensor having a rotator to which rotation from outside is transmitted, a housing on which the rotator is rotatably supported, and an angle sensing member for detecting the angle of rotation to the rotator. At least two, first and second torsion coil springs which constantly turn the rotator in one direction towards the housing are disposed between the rotator and the housing.

Growing community of inventors

Ibaraki, Japan

Hideki Abe