The Furukawa Electric Co., Ltd.

Fujitsu Semiconductor Limited

National Institute for Materials Science

Yoshikazu Tsuzuki

Kazuhiko Kurusu

Mariko Wakae

Kenji Iizuka

Masami Ikeda

Kengo Mitose

Toshiaki Nakamura

Takahiro Shimura

Hiroshi Horikawa

Hideki Abe

Satoru Zama

Masato Sakata

Shinichirou Nakajima

Toshio Mugishima

Ryuji Kojima

Hiroki Abukawa

Tatsuya Minami

Hisashi Mogi

Kazuo Matsubara

Tadahito Miura

Daishi Kawabata

An object of the present disclosure is to provide a thin-film-like composite of nanocrystal, as a nanocrystalline material having excellent handling properties, which can overcome the above-mentioned problems of a nanocrystalline material having a powdery form while satisfactorily maintaining the properties of the nanocrystalline material (e.g., excellent catalytic activity). A thin-film-like composite of nanocrystal, characterized in that the thin-film-like composite of nanocrystal includes a thin-film-like connected assembly in which a plurality of nanocrystalline pieces each having a flake-like form and having a main surface and an end surface are connected to each other, the main surfaces of the plurality of nanocrystalline pieces exposed to the outside of the connected assembly are arranged so as to form gaps therebetween, and the connected assembly has a plan view area of 1 mmor more.

Thin-film-like composite of nanocrystal

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 catalyst includes: a base material; and a nanocrystalline metal oxide composite having a plurality of accumulated flake-like nanocrystalline pieces in a connected state on the surface of the base material, the flake-like nanocrystalline pieces containing a metal oxide to accumulate, wherein the nanocrystalline metal oxide composite is configured such that an end surface of at least one of the nanocrystalline pieces is connected; the nanocrystalline pieces include a plurality of stacked surfaces stacked in a direction in which a main surface becomes an uppermost stacked surface; and when metal atoms or oxygen atoms forming the metal oxide are regarded as main constituent atoms, a proportion by number of the main constituent atoms to the metal atoms and the oxygen atoms forming the metal oxide existing on each stacked surface is 80% or more, and the main constituent atoms have a specific crystal orientation which changes in each stack.

Base material-integrated nanocrystalline metal oxide composite-containing catalyst, method for manufacturing the same, and catalyst component

The present disclosure provides that a catalyst exhibits excellent catalytic activity in both a hydrogenation involving a hydrogen-storing body containing an aromatic compound, and a dehydrogenation involving a hydrogen-supplying body containing a hydrogen derivative of the aromatic compound, wherein the catalyst contains a nanocrystalline composite having two or more accumulated flake-like nanocrystalline pieces in a connected state, the flake-like nanocrystalline pieces each having a main surface and an end surface, and in that the nanocrystalline composite is configured such that, when two adjacent nanocrystalline pieces are viewed, an end surface of at least one of the nanocrystalline pieces is connected.

Nanocrystalline composite catalyst for storing/supplying hydrogen, nanocrystalline composite catalyst mixture for storing/supplying hydrogen, and method for supplying hydrogen

A heat storage material composition, at least containing at least one organic compound selected from ethanol, ethylene glycol, propylene glycol, and acetic acid, sodium acetate, and water, wherein a content of the water is 72.4 to 100 parts by mass, relative to 100 parts by mass of the sodium acetate; an auxiliary heat source and a heat supply method, using the heat storage material composition.

Heat source material composition, and auxiliary heat source and heat supply method using the same

A data buffer device includes: a tag value generation circuit that generates a tag value; a first buffer that stores first priority data; a second buffer that stores second priority data; and a data output circuit that outputs the first priority data or the second priority data, wherein the tag value generation circuit sets a tag value for the following second input data to a second tag value which differs from a first tag value for second preceding input data, and sets a tag value of the following first input data to a fourth tag value that is the same as a third tag value for the first preceding input data, and wherein the data output circuit outputs the first priority data or the second priority data in a first mode based on the tag values and outputs the first priority data earlier in a second mode.

Data buffering based on priority tagging of input data

An optical module equipped with at least one optical component, a package for housing the one optical component, and a joining portion. The joining portion is formed within the package by Sn&#x2014;Ag solder containing 2.0 to 5.0 wt % Ag and 2.0 to 20.0 wt % Au, or Sn&#x2014;Zn solder containing 6.0 to 10.0 wt % Zn and 2.0 to 20.0 wt % Au.

Optical module and method of assembling the optical module

The present invention discloses a diameter-reducing member joint device, where connecting a first member to be connected as the boss of a flange joint or composed of relatively large-diameter pipes to a second member to be connected and having an outer diameter smaller than that of the first member, characterized by interposing a diameter-reducing pipe joint, which has at one end a large-diameter connection portion connected to the first member and also at the other end a small-diameter connection portion connected to the second member, between the first and second members to be connected, and by using a ring-like or cylindrical heat-shrinkable member made of a heat-shrinkable type of shape memory alloy. Namely, the large-diameter connection portion of the diameter-reducing pipe joint and the first member are connected to each other by tightening up due to the shape recovery force when the heat-shrinkable member is thermally shrunken, and the small-diameter connection portion at the other end of the diameter-reducing pipe joint is connected to the second member in a similar manner, so that the first member having a large diameter is connected to the second member and having an outer diameter smaller than that of the first member in a simple and reliable manner.

Diameter-reducing member joint device

Growing community of inventors

Tokyo, Japan

Yoshikazu Tsuzuki