Konica Corporation

Konica Minolta Medical and Graphic, Inc.

Konica Minolta, Inc.

Kiyokazu Morita

Ayumu Nishijima

Narito Goto

Yasuo Kurachi

Yoichi Saito

Kenji Ohnuma

Kenji Suzuki

Takayuki Sasaki

Shinichi Suzuki

Akihisa Nakajima

Takehiko Shoji

Eiichi Ueda

Norio Miura

Kazuaki Nakamura

Noriki Tachibana

Hideki Hoshino

Tsukasa Ito

Kiyoshi Fukusaka

Yoshihiko Suda

Hirokazu Koyama

Keiko Itaya

Hidekazu Kodama

Yuichi Nishikubo

Yoshihiro Wada

Munehiro Date

Ryohei Iwamoto

Shinsaku Nagaoka

Chiaki Kotani

An ultrasonic probe includes: a piezoelectric element; and a backing material including a matrix resin and thermally conductive particles, arranged on one direction side with respect to the piezoelectric element, wherein a ratio of thermal conductivity of the backing material in a thickness direction to the thermal conductivity of the backing material in a horizontal direction is 3 or more.

Ultrasonic probe, ultrasonic diagnostic apparatus, and method for manufacturing backing material

An ultrasound probe of the present invention has a piezoelectric element and a backing material disposed on one direction side with respect to the piezoelectric element, the backing material containing heat conductive particles. The backing material has a heat conductivity of 2.0 W/mk or more, and the content of the heat conductive particles is less than 30 vol % based on the total volume of the backing material.

Ultrasound probe, ultrasound diagnostic apparatus, and method for producing backing material

The piezoelectric element includes a piezoelectric composite including a plurality of piezoelectrics and a reaction product, and an electrode pair. The plurality of piezoelectrics is disposed in alignment at an interval of 1 to 10 &#x3bc;m. The aspect ratio of each of the piezoelectrics is 5 or higher. The reaction product is a reaction product of a crosslinkable epoxy resin composition containing an elastomer component, a crosslinkable epoxy resin, and a crosslinking agent. One or each of a number of epoxy groups per molecule of the crosslinkable epoxy resin and a crosslinking value of the crosslinking agent is 3 or more.

Piezoelectric element, method for producing the same, ultrasound probe, and ultrasound imaging apparatus

An acoustic lens contains silicone rubber and metal oxide particles. The metal oxide particles are added into the silicone rubber. The metal oxide particles have a number-average particle diameter of 30 to 2,000 nm, a specific gravity of 3.5 g/cmor more, a content of 30 to 150 parts by mass based on 100 parts by mass of the silicone rubber, and an oil absorption amount of 20 mL or less per 100 g.

Acoustic lens, method for producing same, ultrasound probe, and ultrasound imaging apparatus

An acoustic lens for an ultrasonic probe includes a vulcanization-molded article of a rubber composition including a first silicone rubber composition having a plasticity number of 100 or less, and a second silicone rubber composition having a plasticity number of 150 or more and 300 or less.

Acoustic lens, method for producing the same, ultrasonic probe, and ultrasonic imaging device

In a laminated piezoelectric body, a laminated piezoelectric body manufacturing method, an ultrasound transducer, and an ultrasound diagnostic device according to the present invention, a plurality of mutually laminated piezoelectric bodies are electrically connected in parallel to each other, and each of the plurality of piezoelectric bodies arranges an orientation of residual polarization or a crystal axis that is related to an electrical displacement or a sign of an electric field due to a direct piezoelectric effect in a direction which reduces sensitivity in a first resonance mode and increases sensitivity in a second resonance mode of a higher order than the first resonance mode with respect to an axis of a first-level piezoelectric body on a fixed end-side.

Laminated piezoelectric body, laminated piezoelectric body manufacturing method, and ultrasound transducer and ultrasound diagnostic device using laminated piezoelectric body

Provided is an organic piezoelectric material which has excellent piezoelectric property, heat resistance property in particular. An ultrasonic oscillator, which is to be used for an ultrasonic medical diagnostic imaging device which can receive high frequencies at high sensitivity and is suitable for harmonic imaging techniques, a method for manufacturing such oscillator, and an ultrasonic probe are also provided. The ultrasonic medical diagnostic imaging device is provided by sing such oscillator, method and probe. The organic piezoelectric material is characterized by containing empty particles having an average particle diameter of 10 &#x3bc;m or less.

Organic piezoelectric material, ultrasonic oscillator using the material, method for manufacturing the ultrasonic oscillator, ultrasonic probe, and ultrasonic medical diagnostic imaging device

A photothermographic material is disclosed, comprising on one side of a support a light-sensitive layer comprising a light sensitive silver halide, light-insensitive silver salts of aliphatic carboyxlic acids, a reducing agent and a binder resin and a light-insensitive layer and on the other side of the support a light-insensitive layer, wherein the light-insensitive layer on the light-sensitive layer side and the light-insensitive layer on the other side of the support comprises a silicon-containing polymer lubricant and a fluorine-containing compound represented by formula (SF):[Rf-(L)-]-(L)-(A)&#x2003;&#x2003;Formula (SF).

Photothermographic material

A silver salt photo-thermal photographic dry imaging material comprising on a support a light-sensitive layer containing light-insensitive silver salt of aliphatic carboxylic acid particles, a light-sensitive emulsion having light-sensitive silver halide grains, a silver ion reducing agent and a binder. The light-sensitive emulsion contains silver halide particles having diameters of from 0.001 &#x3bc;m to 0.050 &#x3bc;m in the ratio of 50% or more by weight in terms of silver of the entire light-sensitive silver halide grains contained, and the number average particle diameter of the light-insensitive silver salt of aliphatic carboxylic acid is from 0.01 &#x3bc;m to 0.60 &#x3bc;m.

Silver salt photo-thermal photographic dry imaging material, an image recording method and an image forming method

A silver salt photothermographic dry imaging material including a support provided thereon a light-sensitive layer containing an organic silver salt, light-sensitive silver halide particles and a reducing agent, wherein the dry imaging material contains organic solid lubricant particles having an average particle diameter of 1 to 30 &#x3bc;m.

Silver salt photothermographic dry imaging material and image recording method

A photothermographic material is disclosed, comprising on a support a light-sensitive emulsion containing a light-insensitive organic silver salt and a light-sensitive silver halide, a reducing agent for silver ions and a binder, wherein the photothermographic material further comprises a compound represented by the following formula (A-1) or (B) and a compound represented by the following formula (A-2)   

Silver salt photothermographic dry imaging material

A photothermographic material is disclosed, comprising on a support a light-sensitive layer comprising a light-insensitive silver salt of an aliphatic carboxylic acid, light-sensitive silver halide grains, a reducing agent for silver ions and a binder, wherein the light-sensitive layer further comprises nonaqueous dispersion particles insoluble in organic solvents.

A photothermographic material comprising a support and having thereon an image forming layer containing an organic silver salt, light-sensitive silver halide grains, binder and a reducing agent, wherein the reducing agent comprises: a reducing agent A containing at least a bisphenol derivative represented by following Formula (A-1); and a reducing agent B containing at least a bisphenol derivative not represented by the Formula (A-1), and the amount of reducing agent A is 5 to 45 weight % of the total weight of the reducing agent A and reducing agent B.

Photothermographic material and image forming method

Silver salt photothermographic imaging material, and image recording method and image forming method by the use thereof

A silver salt photothermographic material is disclosed, comprising on a support a light-sensitive layer comprising an organic silver salt, light-sensitive silver halide grains, a reducing agent and a binder, wherein after the photothermographic material having been developed at a temperature of not less than 100&deg; C. is subjected to exposure to light of an illumination intensity of 300 lux at 45&deg; C. for 24 hrs., the rate of variation in fog density between before and after exposure is not more than 30%, based on the fog density of the photothermographic material before exposure.

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Tokyo, Japan

Kiyokazu Morita