Konica Minolta, Inc.

Konica-minolta Holdings, Inc.

Konica Minolta Medical and Graphic, Inc.

Rie Fujisawa

Shuichi Sugita

Eisaku Katoh

Takatugu Suzuki

Hiroshi Kita

Rie Katakura

Kiyoshi Fukusaka

Hiroyoshi Kiuchi

Yuichi Nishikubo

Motoaki Sugino

Issei Nakahara

Midori Kogure

The present invention provides a resin composition capable of forming a film exhibiting a small humidity-dependent variation in optical values; a triazole compound to be incorporated into the resin composition; an optical film and an optical lens, each of which is prepared from the resin composition and exhibits a small humidity-dependent variation in optical values; and a polarizing plate, a circularly polarizing plate, and an image display device, each of which includes the optical film and exhibits excellent moisture resistance. The resin composition of the present invention contains a resin and a compound having a 5-membered or 6-membered aromatic hydrocarbon or heterocyclic ring, wherein the resin is a hygroscopic resin, the compound has at least three specific aromatic rings having a specific NICS value, and the specific aromatic rings are bonded to one another via a single bond or one or two atoms.

Resin composition

Provided is an optical film containing a cellulose derivative, the optical film having an in-plane retardation Rowithin the range of 120 to 160 nm measured at a wavelength of 550 nm under an atmosphere of a temperature of 23&#xb0; C. and a relative humidity of 55%, and a ratio Ro/Rowithin the range of 0.65 to 0.99, Ro/Robeing a ratio of an in-plane retardation Romeasured at a wavelength of 450 nm to the in-plane retardation Romeasured at a wavelength of 550 nm, wherein, a substituent of a glucose skeleton in the cellulose derivative satisfies the requirements (a) and (b) which are described in the specification, and the optical film contains a compound A satisfying the following condition defined by Expression (a1) which is described in the specification.

Optical film, circularly polarizing plate and organic electroluminescent display device

A optical film includes a thermoplastic resin and a compound wherein: (1) the absorption spectrum of said compound in solution has at least two absorption maxima in the 200-350 nm wavelength range; (2) letting &#x3bb;max1 represent the wavelength of a first absorption maximum (one of the aforementioned absorption maxima) and letting &#x3bb;max2 represent the wavelength of a second absorption maximum (another of the aforementioned absorption maxima) at a shorter wavelength than the first absorption maximum, (&#x3bb;max1&#x2212;&#x3bb;max2) is at least 20 nm; (3) the aspect ratio of the molecules of the compound is at least 1.70; (4) each molecule of the compound has a non-aromatic hydrocarbon ring, a non-aromatic heterocycle, or an aromatic heterocycle; (5) the in-plane-retardation increase sensitivity of the compound is at least 0.1; 110 nm&#x2266;R(550)&#x2266;170 nm; 0.72&#x2266;R(450)/R(550)&#x2266;0.96; and 0.83&#x2266;R(550)/R(650)&#x2266;0.97.

Optical film, circularly polarizing plate, and image display device

In the present invention, provided is an organic piezoelectric material specifically exhibiting high orientation and thermal stability as an organic piezoelectric material exhibiting an excellent piezoelectric characteristic and having piezoelectricity and pyroelectricity, which is capable of converting thermal or mechanical simulation into electrical energy, and also provided are an ultrasound probe for which the organic piezoelectric material is used, and an ultrasound image detector thereof. It is a feature that an organic piezoelectric material of the present invention possesses a compound represented by Formula (1) and a base material made of an organic polymeric material, satisfying Expression (1): |C Log P (1)&#x2212;C Log P (base material)|&#x2266;3.0 when C Log P values of the compound and the base material are expressed as C Log P (1) and C Log P (base material), respectively.

Organic piezoelectric material, ultrasound probe, and ultrasound image detector

Disclosed is an organic piezoelectric material which has excellent piezoelectric characteristics and excellent handling properties. Also disclosed are an ultrasound transducer using the organic piezoelectric material, an ultrasound probe, and an ultrasound medical diagnostic imaging system. Specifically disclosed is an organic piezoelectric material which contains a base material that is formed from a resin, and a specific compound (1) that has at least one linking group selected from among specific linking groups. The organic piezoelectric material is characterized in that the relation shown below is satisfied when the CLogP values of the specific compound (1) and the base material are respectively represented by CLogP(1) and CLogP(base material). Relation: |CLogP(1)&#x2212;CLogP(base material)|&#x2266;3.0.

Organic piezoelectric material, ultrasound transducer, ultrasound probe, and ultrasound medical diagnostic imaging system

Provided is a method for producing a nitrogen-containing condensed heterocyclic compound containing the step of: reacting a compound represented by Formula (1a) or Formula (1b) with a compound represented by Formula (2) under existence of cupper or a cupper ion, and a ligand to produce a nitrogen-containing condensed heterocyclic compound represented by Formula (3a) or Formula (3b): 

Producing method of nitrogen containing condensed heterocyclic compound

Disclosed is an organic electroluminescence element comprising an anode, a cathode and a plurality of organic compound layers between the anode and the cathode, provided that one of the organic compound layers is a light emitting layer containing a phosphorescence emitting compound, wherein at least one of the organic compound layers contains a compound represented by Formula (2): 

Organic electroluminescence element, new compound for the same, display device and lighting device using the same

Disclosed is an organic electroluminescence element comprising an anode, a cathode and a plurality of organic compound layers between the anode and the cathode, provided that one of the organic compound layers is a light emitting layer containing a phosphorescence emitting compound, 

Growing community of inventors

Ebina, Japan

Rie Fujisawa