Yamagata University

Ube Industries, Inc.

Dis Corporation

Daisuke Kumaki

Shizuo Tokito

Kenjiro Fukuda

Hidetaka Shima

Toshikazu Machida

Yasuhiro Tanaka

Yasuhiro Yoneda

Kazuaki Kakita

Youji Omata

Hiroyuki Oda

Takashi Honma

Yoshinori Katayama

Harunori Fujita

Tomoko Okamoto

Tetsuro Shimano

Tomohito Sekine

Natsuko Yamada

Daisuke Shiokawa

Masashi Mamada

Yu Kobayashi

Shohei Norita

Junichi Toukairin

Konami Izumi

Kenichi Yatsugi

An evaluation test apparatus is configured to evaluate or test measurement precision of a biological information measurement device configured to measure biological information. The evaluation test apparatus includes: a function generator configured to generate a plurality of input waveform signals by a predetermined operation; an indenter configured to pressure a piezoelectric element of the biological information measurement device; a vibration driver selected from a motor and a solenoid and configured to vibrate the indenter; and a control board configured to control the vibration driver. The control board includes an adder configured to combine the plurality of input waveform signals generated by the function generator. The vibration driver vibrates the indenter based on a composite waveform signal combined by the adder.

Evaluation test apparatus

A piezoelectric sensor configured to detect a change of pressure from a living body in a predetermined location includes: a pair of electrodes spaced from one another and formed to spread as a sheet; a pressure-sensitive layer disposed between the pair of electrodes and configured to generate electric charge in response to the change of pressure; a pair of terminals connected to the pair of electrodes, respectively, and configured to output an electrical signal supplied from the pair of electrodes in response to the change of pressure of the living body. An edge of at least one of the pair of electrodes extending toward the pair of terminals is disposed to protrude outside the pressure-sensitive layer, and the electrical signal propagates through the edge and is outputted from the pair of terminals.

Piezoelectric sensor

A method for producing a silver nanoparticle dispersion according to the present invention includes the steps of mixing an amine compound, a resin, and a silver salt to yield a complex compound; and heating and decomposing the complex compound to form silver nanoparticles. A silver nanoparticle ink can be obtained by adding an organic solvent to the silver nanoparticle dispersion obtained by this method. The resin includes, for example, a polymer exhibiting viscosity at a temperature within the range of 20&#xb0; C. to 50&#xb0; C. or a high molecular weight compound exhibiting viscosity at a temperature within the range of 20&#xb0; C. to 50&#xb0; C.

Method for producing silver nanoparticle dispersion and method for producing silver nanoparticle ink

Provided is a method of manufacturing a thin film transistor satisfying the relation of L&#x3c;5 &#x3bc;m. The method includes a process of forming a streak portion by performing transfer printing on a support using a release member which is provided with an ink streak portion for forming source and drain electrodes and has mold releasability, and baking the streak portion to thereby form the source electrode constituted by a conductor and the drain electrode constituted by a conductor. In the method manufacturing a thin film transistor in which the source and drain electrodes obtained above, a semiconductor layer, an insulator layer, and a gate electrode constituted by a conductor are laminated, after the baking, in a laminated cross section of the thin film transistor to be manufactured is set to A and a channel length thereof is set to L, the ink streak portion is provided so as to satisfy the condition of L/A&#x2265;0.05.

Method of manufacturing a specifically dimensioned thin film transistor, thin film transistor, and transistor array

A method for producing silver nanoparticles according to the present invention includes the steps of: mixing an amine mixture and a silver compound to yield a complex compound; and heating and decomposing the complex compound to form silver nanoparticles. The amine mixture contains: a primary amine (A) having 8 or more carbon atoms and a melting point of 20&#xb0; C. or lower; a diamine (B) having a primary amino group, a tertiary amino group, 4 or more carbon atoms, and a melting point of 20&#xb0; C. or lower; and a cis-unsaturated primary amine (C) having 12 or more carbon atoms and a melting point of 30&#xb0; C. or lower.

Silver nanoparticles, method for producing silver nanoparticles, and silver nanoparticle ink

A benzobis(thiadiazole) derivative represented by the following general formula (1):  in which R represents a linear or branched alkyl group;

Benzobis (thiadiazole) derivative, ink comprising same, and organic electronic device comprising same

A method for forming a wiring according to the present invention includes: applying an ink () that exhibits electrical conductivity upon light absorption to a contact hole formation portion of an upper face of an insulating resin layer () formed on a lower wiring element (); and irradiating the ink () with light to render the ink () conductive and also to remove a part of the insulating resin layer () by heat emitted from the ink () so as to form a contact hole (), the part of the insulating resin layer () lying under the portion of the face to which the ink () is applied. A step of forming an upper wiring element () on the upper face of the insulating resin layer () may further be carried out, the upper wiring element () being electrically continuous with the lower wiring element () through the contact hole ().

Method for forming wiring

The metal thin film production method of the present invention includes, in the following order, the steps of: preparing a substrate () having thereon an underlayer () formed of an insulating resin; subjecting a surface of the underlayer () to a physical surface treatment for breaking bonds of organic molecules constituting the insulating resin; subjecting the substrate () to a heat treatment at a temperature of 200&#xb0; C. or lower; applying a metal nanoparticle ink to the underlayer (); and sintering metal nanoparticles contained in the metal nanoparticle ink at a temperature equal to or higher than a glass transition temperature of the underlayer (). A fused layer () having a thickness of 100 nm or less is formed between the underlayer () and a metal thin film () formed by sintering the metal nanoparticles.

Method for producing metal thin film and conductive structure

A benzobis(thiadiazole) derivative represented by the formula (1): 

Benzobis(thiadiazole) derivative and organic electronics device comprising same

Growing community of inventors

Yamagata, Japan

Daisuke Kumaki