National Institute of Advanced Industrial Science and Technology

Seven Dreamers Laboratories, Inc.

Matsushita Refrigeration Company

Ist Corporation, Limited

Hiroshi Yamada

Tetsuo Sakai

Morito Akiyama

Shinichi Sakane

Masato Uehara

Kenji Hioki

Chisaka Aoyama

Kenji Hirata

Yosuke Taniguchi

Sri Ayu Anggraini

Hiroki Hamano

Yoshiki Hattori

Haruhiko Iwai

Jun Kogamori

Yoshito Kimura

Hiroshi Funakubo

Takao Shimizu

Chao-Nan Xu

Nao Terasaki

Takuhiro Miyuki

Yoshiki Ohashi

Masatoshi Sasaki

Yusuke Imai

Masashi Yuasa

Kae Fujiwara

Tatsu Kobayakawa

Hideki Toda

Akira Hyoudou

Kazuo Imai

Akira Hyodo

Makoto Fujihashi

Shinnosuke Yasuoka

Sachiko Saitou

Shuzo Kamimura

Hideki Fukui

Yasuki Hamano

Yasue Okuyama

Naoki Yokoyama

Yohei Nomoto

Toshinori Noda

Yuusuke Eda

Kazuki Sawa

Yoshihito Nimura

Provide are a nitride piezoelectric body having a value indicating a performance index (at least any one of d, g, and K) higher than that of aluminum nitride not doped with any element, and a MEMS device using the same. The nitride piezoelectric body is a piezoelectric body represented by chemical formula AlMgTaN, wherein X+Y is less than 1, X is in a range of more than 0 and less than 1, and Y is in a range of more than 0 and less than 1, and Ta includes tetravalent tantalum.

Nitride piezoelectric body and MEMS device using same

It is an object to provide a ferroelectric thin film having much higher ferroelectric properties than conventional Sc-doped ferroelectric thin film constituted by aluminum nitride and also having stability when applied to practical use, and also to provide an electronic device using the same. There are provided a ferroelectric thin film represented by a chemical formula M1M2N, wherein M1 is at least one element selected from Al and Ga, M2 is at least one element selected from Mg, Sc, Yb, and Nb, and X is within a range of 0 or more and 1 or less, and also an electronic device using the same.

Ferroelectric thin film, electronic element using name, and method for manufacturing ferroelectric thin film

An object is to provide a piezoelectric body having a value indicating a higher performance index (d, e, C, g, and/or k) than aluminum nitride not doped with any element. The piezoelectric body is represented by a chemical formula AlMgMN where X+Y is less than 1, X is in a range of more than 0 and less than 1, and Y is in a range of more than 0 and less than 1.

There are provided a piezoelectric body of ytterbium-doped aluminum nitride, having a greater piezoelectric coefficient dor gthan those not doped with ytterbium, and a MEMS device using the piezoelectric body. The piezoelectric body is represented by a chemical formula AlYbN where a value of x is more than 0 and less than 0.37 and having a lattice constant ratio c/a in a range of 1.53 or more and less than 1.6. The piezoelectric body with such a configuration has a greater piezoelectric coefficient dor gthan those not doped with ytterbium.

Piezoelectric body and MEMS device using same

A fixture is provided for attachment to a device to be inserted into a nasal cavity. Further, the fixture is a nasal cavity insertion device fixture formed of a wire rod. The fixture includes a first wire rod part, a second wire rod part, and a third wire rod part. The second wire rod part is connected to the first wire rod part and formed by folding back the wire rod so as to be opposed to the first wire rod part. The third wire rod part is connected to the second wire rod part and formed by bending the wire rod so as to be disposed oppositely to a side of the second wire rod part facing the first wire rod part.

Nasal cavity insertion device fixture and nasal cavity insertion device set including the same

A nasal cavity insertion device is provided that includes a tubular main body part, at least one elastically deforming part disposed on the outer peripheral surface of the tubular main body part, and a water soluble holding part. The water soluble holding part holds the elastically deforming part in a diameter-reduced state.

Nasal cavity insertion device

Nasal airway tube

A medical guide wire () is made in which at least a fluororesin coating layer () is formed on the surface of a metal wire (), wherein particulate matter is present in the fluororesin coating layer (), and the fluororesin coating layer covers the particulate matter and at least some of the particulate matter is formed in surface protrusion-shaped projections (). It is thus possible to provide a medical guide wire that is inexpensive to manufacture and whose strength is unaffected and frictional resistance is low, and manufacturing method for the same.

Medical guide wire and process for production thereof

A stress history recording system for recording a stress history, which includes a light emitting section including a stress-stimulated luminescent material that emits light in response to a mechanical external force, and a recording section for recording a history of a photoreaction generated due to light emission from the light emitting section. This achieves a technology for recording a stress history by using the stress-stimulated luminescent material.

Stress history recording system

A method for the manufacture of a medical wire includes manufacturing a fluororesin-coated wire and irradiating with infrared radiation. The fluororesin-coated wire is manufactured with a fluororesin-containing liquid, or fluororesin powder body being applied to the outer circumference of a superelastic alloy wire or of a resin-coated superelastic alloy wire. The fluororesin-coated wire is irradiated with a defined wavelength of infrared radiation for a defined period of time.

Medical device and manufacturing method of colored medical device

A gas-concentration measuring apparatus for measuring the concentration variation of gas residing in a target region. The gas-concentration measuring apparatus comprises an ultrasound-transmitter adapted to transmit an ultrasound in response to an ultrasound-generating signal having a rate of voltage change equal to or greater than a slew rate of an operational amplifier, and further adapted to output the ultrasound-generating signal. An ultrasound-receiver adapted to receive the ultrasound wave passed through the gas residing in the target region, and further adapted to convert the received ultrasound into an electrical signal serving as a received ultrasound signal is provided. A gas-concentration determiner adapted to input the ultrasound-generating signal and the received ultrasound wave signal into the operational amplifier to generate an amplified transmitting-side chopping wave and an amplified receiving-side chopping wave is further provided. The gas-concentration determiner is further adapted to compare the transmitting-side and receiving-side chopping waves independently with corresponding given threshold voltages to detect a first pair of time points when the respective chopping waves become equal to or greater than the corresponding given threshold voltages or to detect a second pair of time points when the respective chopping waves become equal to or less than the corresponding given threshold voltages. The gas-concentration determiner is further adapted to determine the concentration variation in the gas based on the pair of time points.

Gas concentration measuring apparatus and method

Respective evaporators are set to a proper value in evaporation temperature and the efficiency in refrigeration cycle is enhanced, resulting in a reduction of energy consumption. A refrigerating unit and a refrigerator comprise a compressor, a condenser, a plurality of evaporators connected in series, a refrigerant flow rate adjustable unit and a refrigerant, thereby constituting a refrigeration cycle. The refrigerant flow rate adjustable unit controls each respective evaporation temperature of the plurality of evaporators. Preferably, the refrigeration unit further comprises a bypass circuit bypassing at least one of the plurality of evaporators and, when needs arise, the refrigerant is channeled through the bypass circuit. The refrigerant flow rate adjustable unit controls a flow rate of the refrigerant such that an evaporation temperature of the respective evaporators located at the upstream side of the refrigeration cycle is made higher than an evaporation temperature of the respective evaporators located at the downstream side thereof.

Freezer and refrigerator provided with freezer

A refrigerator is improved in storage environment by suppressing drying and oxidation and enhanced in volume efficiency and cooling efficiency. The refrigerator includes a refrigerating chamber, a vegetable chamber, and a freezing chamber in order from its top to its bottom. Cool air is introduced into the freezing chamber by a first cooler and a first fan, and is introduced into the refrigerating chamber by a second cooler and a second fan. These chambers function as a direct cooling chamber. The vegetable chamber functions as an indirect cooling chamber cooled by a cooling plate which is disposed at the top of the chamber and has a large thermal conductivity, which is cooled by forced convection by the second cooler and the second fan, producing the effects of low temperature radiation and natural convection in the chamber. This arrangement provides the refrigerator with quality maintaining effects in accordance with the suitability for storage of foods, and allows the refrigerator to assure high storing performance.

Refrigerator

A bottom-freezer refrigerator comprises a generally rectangular box-like refrigerator housing including a top division and a bottom division with an adiabatic partition wall intervening between the top and bottom divisions. The top division has a refrigerator chamber and a crisper chamber both defined therein. The bottom division has a freezer compartment defined therein. The bottom-freezer refrigerator of the structure described above also comprises a first cooler provided in the top division at a location spaced from a rear wall portion of the crisper chamber, a first circulating fan disposed in the vicinity of the first cooler, a second cooler provided in the bottom division, and a second circulating fan disposed in the vicinity of the second cooler. The refrigerator chamber and the crisper chamber are cooled by the first cooler in cooperation with the first circulating fan, whereas the freezer compartment is cooled by the second cooler in cooperation with the second circulating fan.

Growing community of inventors

Otsu, Japan

Hiroshi Yamada