Canon Kabushiki Kaisha

Mitsubishi Electric Corporation

University of Yamanashi

National Institute of Advanced Industrial Science and Technology

Kyoto University

Tokyo Institute of Technology

Tokyo University of Science Educational Foundation Administrative Organization

Tatsuo Furuta

Makoto Kubota

Jumpei Hayashi

Shinya Koyama

Koji Suzuki

Takanori Matsuda

Yasushi Shimizu

Takayuki Watanabe

Hidenori Tanaka

Kenichi Takeda

Atsushi Kimura

Naoya Matsunaga

Kanako Oshima

Miki Ueda

Tetsuro Fukui

Hiroshi Saito

Toshihiro Ifuku

Akira Uebayashi

Hisato Yabuta

Takahiro Komatsu

Satoshi Wada

Tatsuya Suzuki

Kazuki Watanabe

Hideaki Takahashi

Shunsuke Murakami

Takaaki Takishita

Kenichi Akashi

Kaoru Miura

Satoshi Fujita

Mikio Shimada

Tomohiro Watanabe

Keisuke Tomomura

Hironobu Suehiro

Masaaki Maruyama

Hiroyuki Hatakeyama

Toshiaki Aiba

Nobuhiro Kumada

Koichi Kitakami

Katsuya Ishigami

Yoshie Nakaya

Hitoshi Nishitani

Kenji Takashima

Masahiko Takagi

Kazutaka Suzuki

Hiroshi Funakubo

Zuyi Zhang

Toshifumi Urakami

Kaishi Ohashi

Masatoshi Watanabe

Takeshi Kawano

Takashi Iijima

Masaki Azuma

Hiroki Nakashima

Soichiro Okamura

Satoshi Nozu

Takehito Nishida

Yoshihiko Matsumura

Kazuya Kubo

Atsushi Edayoshi

Akinori Toyoda

Yusaku Seki

Kazuki Matsushima

Masahiro Kamijo

Chiaki Arii

Yuta Aiba

Tomoaki Masubuchi

Yuki Iitsuka

Kota Hamada

Yoshiki Moriya

Koichi Takamaru

Hisao Nio

A piezoelectric material having a large electromechanical coupling coefficient is provided. The material is manufactured by a method including the steps of: heating a piezoelectric material having a low-temperature side ferroelectric phase A and a high-temperature side ferroelectric phase B between which the phase of the piezoelectric material transitions according to a temperature change, from room temperature to a temperature range higher than Tat which temperature a change from the ferroelectric phase B to the ferroelectric phase A occurs in a temperature lowering process and lower than Tat which temperature a change from the ferroelectric phase A to the ferroelectric phase B occurs in a temperature rising process; starting application of an electric field to the piezoelectric material in a state where it is held within this temperature range; and continuing and finishing the electric field application at a temperature lower than T.

Method of manufacturing piezoelectric element, method of manufacturing electronic device, piezoelectric element, and electronic device

Provided are a piezoelectric ceramics which does not contain lead, has small temperature dependence of a piezoelectric constant within an operating temperature range, and has high density, a high mechanical quality factor, a satisfactory piezoelectric constant, and a small surface roughness, and a method of manufacturing the piezoelectric ceramics. The method of manufacturing a piezoelectric ceramics is characterized by including: sintering a compact containing a raw material at 1,000° C. or more to obtain a sintered compact; abrading the sintered compact; and annealing the abraded sintered compact at a temperature of 800° C. or more and less than 1,000° C.

Method of manufacturing piezoelectric ceramics, piezoelectric ceramics, piezoelectric element, ultrasonic motor, optical apparatus, dust removing device, image pickup apparatus, ultrasonic probe, ultrasonic diagnostic apparatus, and electronic apparatus

A temperature-detecting device includes a frame, a temperature-detecting unit, a driving unit, a rotation-controlling unit, and a controller. The temperature-detecting unit includes a sensor, a sensor cap, and a sensor case. The rotation-controlling unit is configured to stop rotation of the sensor cap when the temperature-detecting unit reaches a target angle that is over 360 degrees from a reference position, with the sensor case being kept rotated by the driving unit such that the sensor is displaced from an opening and is covered by the sensor case. The controller is configured to correct a temperature detected while the sensor is exposed at the opening, with reference to a temperature detected while the sensor is covered by the sensor case.

Temperature-detecting device, and air-conditioning-apparatus indoor unit including the temperature-detecting device

An indoor unit of an air-conditioning apparatus includes a wind direction vane, a vane motor, an air passage wall, and a shaft joint member. Between a vane shaft and the air passage wall, an annular gap is provided. The shaft joint member includes a flange portion between the air passage wall and the vane motor. The flange portion radially extends outward from a center, thereby causing air that flows toward the vane motor through the annular gap to be diffused outward relative to a direction toward the vane motor.

Indoor unit of air-conditioning apparatus having vane shaft connection mechanism and air-conditioning apparatus having vane shaft connection mechanism

An indoor unit includes a housing that houses an electrical-component storage box that includes a body portion, a lid portion, and an engagement mechanism portion that engages the body portion and the lid portion with each other in a detachable manner. The lid portion covers an open region on a side of the body portion. The engagement mechanism portion includes an engagement claw portion provided at one of the body and lid portions and an engagement hole portion into which the claw portion is inserted, and which is formed at the other of the body and lid portions.

Indoor unit and air-conditioning apparatus

The present invention provides a vibrator made of a non-lead-based piezoelectric material and capable of being driven at a sufficient speed with low power consumption, and provides a vibration wave drive device and an electronical device each using the vibrator. To that end, the vibrator according to the present invention includes a piezoelectric element including a piezoelectric material and electrodes, and an elastic body, wherein a Pb component contained in the piezoelectric material is less than 1000 ppm, and a resonance frequency fin a vibration mode A and a resonance frequency fin a vibration mode B satisfy a relation of an absolute value of (f&#x2212;f)&#x3e;2 (kHz), the vibration mode A and the vibration mode B generating vibration waves in the elastic body with wave fronts of the vibration waves intersecting each other.

Vibrator, vibration wave drive device, vibration wave motor, and electronical device

Operation of fastening a decorative-panel mounting screw into a screw-fastening hole of an indoor-unit body is facilitated. A decorative panel includes a decorative-panel body, a decorative-panel mounting component, and a decorative-panel mounting screw. The decorative-panel mounting screw is used to, when the decorative-panel mounting screw is inserted through a second screw-insertion hole in the decorative-panel mounting component and a first screw-insertion hole in the decorative-panel body and fastened into a screw-fastening hole, cause a first mounting plate part and a second mounting plate part included in the decorative-panel mounting component to deform such that a mounting surface part included in the decorative-panel mounting component is displaced toward an indoor-unit body, and cause a first protruding engagement part and a second protruding engagement part included in the decorative-panel mounting component to move to be closer toward each other than before the decorative-panel mounting screw is fastened into the screw-fastening hole.

Decorative panel and indoor unit

Provided is a piezoelectric ceramics including crystal grains each including: a first region that is formed of a perovskite-type metal oxide having a crystal structure in which a central element of a unit cell is located at an asymmetrical position; and a second region that is formed of a perovskite-type metal oxide having a crystal structure in which a central element of a unit cell is located at a symmetrical position, and that is present inside the first region, wherein a ratio of a cross-sectional area of the second region to a cross-sectional area of the piezoelectric ceramics is 0.1% or less.

Piezoelectric ceramics, piezoelectric element, and electronic apparatus

An indoor unit of an air-conditioning apparatus includes a heat-medium heat exchanger, an air vent valve, a drain pan, and a hose. The heat-medium heat exchanger is provided in a housing to cause heat exchange to be performed between a heat medium and indoor air. The air vent valve allows air to escape from a heat medium passage that allows the heat medium to flow in the heat-medium heat exchanger. The drain pan is provided below the heat-medium heat exchanger to receive condensation water generated at a surface of the heat-medium heat exchanger. The hose has flexibility, and is attached to the air vent valve, and provided to let out the air along with the heat medium from the heat medium passage to the inner space in the drain pan. The hose has a double-wall structure and an upper end portion of the hose is fixed to the air vent valve.

Indoor unit of air-conditioning apparatus and air-conditioning apparatus

Provided is a piezoelectric ceramics having a gradual change in piezoelectric constant depending on an ambient temperature. Specifically, provided is a single-piece piezoelectric ceramics including as a main component a perovskite-type metal oxide represented by a compositional formula of ABO, wherein an A site element in the compositional formula contains Ba and M, the Mbeing formed of at least one kind selected from the group consisting of Ca and Bi, wherein a B site element in the compositional formula contains Tand M, the Mbeing formed of at least one kind selected from the group consisting of Zr, Sn, and Hf, wherein concentrations of the Mand the Mchange in at least one direction of the piezoelectric ceramics, and wherein increase and decrease directions of concentration changes of the Mand the Mare directions opposite to each other.

Piezoelectric ceramics, manufacturing method for piezoelectric ceramics, piezoelectric element, vibration device, and electronic device

An indoor unit of an air-conditioning apparatus includes a shell in which a light-receiving window is formed; a display unit attached to an inner surface of the shell; and a cover attached to the display unit, the cover covering the light-receiving window. The cover includes a first end portion, a second end portion located opposite to the first end portion, one of a first engagement portion and a first engagement-receiving portion provided at the first end portion, the first engagement-receiving portion being engaged with the first engagement portion, and one of a first lug portion and a first lug-receiving portion provided at the second end portion, the first lug-receiving portion being engaged with the first lug portion. The display unit includes the other of the first engagement portion and the first engagement-receiving portion, and the other of the first lug portion and the first lug-receiving portion.

A vibration wave motor includes an annular oscillator, and an annular moving member provided so as to be in press contact with the oscillator. The oscillator includes an annular vibrating plate, and an annular piezoelectric element provided on a first surface of the vibrating plate. The vibrating plate is in contact with the moving member via a second surface of the vibrating plate, which is opposite the first surface. The piezoelectric element has a plurality of drive phase electrodes. When a driving region represents a region of the oscillator in which the drive phase electrodes are provided, and a non-driving region represents a remaining region of the oscillator, a contact area ratio S1 between the vibrating plate and the moving member in the non-driving region is less than a contact area ratio S2 between the vibrating plate and the moving member in the driving region.

Vibration wave motor, drive control system, and optical apparatus

Provided is a method of manufacturing a piezoelectric element in which, at a time when the piezoelectric element is manufactured, a piezoelectric material is prevented from being exposed to a temperature higher than a Curie temperature thereof to be depolarized, to thereby significantly decrease piezoelectric properties. The method of manufacturing a piezoelectric element includes a first step of arranging a plurality of electrodes on a piezoelectric material, electrically short-circuiting two or more electrodes of the plurality of electrodes, and subjecting the piezoelectric material to heat treatment, and a second step of, after the first step, electrically opening the short circuit of the two or more electrodes at a time when a temperature of the piezoelectric material decreases to less than a temperature of the piezoelectric material at a time of the heat treatment.

Method of manufacturing piezoelectric element, method of manufacturing oscillatory wave motor, method of manufacturing optical apparatus, and method of manufacturing electronic apparatus

Provided is a packing material which packs at least a unit main body of an air conditioner to be installed in a ceiling, the packing material including: a cover part for covering an opening part through which components inside the unit main body are exposed; and a cut and bent up part which has a slit part for inserting a protruding portion of the unit main body and fixes the cover part on the unit main body. The packing material can eliminate the need for a curing sheet and a tape for fixing the curing sheet while keeping out dust etc.

Packing system including packing material for air conditioner and air conditioner

The indoor unit of an air-conditioning unit includes: an opening; a cover; a heat medium heat exchanger; and an air processing unit. The air purge valve is positioned on a rear side in a projection direction of the opening inside the casing. The cover includes, on its one side, a single hook protruding from its cover body. The cover includes, on its side opposite to the one side, a temporarily fixing tab configured to temporarily fix the cover to the casing with the cover body closing the opening.

Growing community of inventors

Machida, Japan

Tatsuo Furuta