Kawasaki Steel Corporation

Tdk Corporation

Nec Viewtechnology, Ltd.

Other

Jfe Steel Corporation

Dai Nippon Toryo Co., Ltd.

Kazuo Mochizuki

Hisatada Nakakoji

Kyoko Hamahara

Toshio Ichida

Hajime Ogata

Nobuyuki Morito

Tomokatsu Katagiri

Ryoichi Muko

Kyoko Yamaji

Toshio Irie

Chiaki Kato

Hajime Kimura

Hiroyuki Ogata

Hisakazu Aoyanagi

Shigeko Sujita

Syuuzi Itoh

Sachiko Suzuki

Kazuhiro Hasegawa

Hisatada Nakakouji

Hiroshi Hatanaka

Hiroki Nakamaru

Shuichi Asahina

Satoshi Sasaki

Takashi Obara

Kazuo Nagata

Toru Sano

Hideo Kuguminato

Kazuhide Ishii

Koji Yamato

Fumiya Yanagishima

Kazuaki Kyono

Shigeru Umino

Osamu Ogawa

Kenji Takao

Masanori Nagai

Tomofumi Shigekuni

Daisuke Moriwaki

Shigeru Kobayashi

Shunichi Harada

Hiroyuki Tanabe

Shigeo Kurokawa

Hideo Sunami

Shigenobu Jyou

Michitaka Naitou

Michio Katayama

Hiroaki Ohnuma

Kazumi Yamashita

Hideo Sasaoka

Yoshio Izumiyama

Yuzo Sawara

Takashi Isogai

Shigeru Usuda

Shiro Tsuri

Takehiko Yasumi

Kenichiro Akao

Toshihiro Kikuchi

Hidenori Shirai

Kazuhiro Ohotsuka

Tokumitsu Kimura

Tenji Ban

Kazuhiko Higai

Tohru Fujimura

Takahiro Kusakabe

Fuminori Mukaihara

Nobuyoshi Kato

Yoshinori Gotou

Kazuo Wakasa

Yasuhei Sakamoto

A multilayer piezoelectric element has a laminate body in which a plurality of piezoelectric bodies and a plurality of internal electrodes are alternately laminated and sintered. The plurality of internal electrodes comprise a first electrode and a second electrode. The laminate body is provided with a metal oxide layer formed of a material with a melting point higher than a sintering temperature of the piezoelectric bodies. The laminate body has an active portion in which the first electrode and the second electrode are arranged to overlap in a laminate direction of the laminate body, and inactive portions in which the first electrode and the second electrode are arranged not to overlap in the laminate direction of the laminate body. The inactive portions are provided on both sides of the active portion. The metal oxide layer has a first region formed in the same layer as the internal electrode in the inactive portion, and a second region formed so as to extend from the first region toward the active portion and overlap the internal electrode.

Multilayer piezoelectric element

A multilayer piezoelectric element has a laminate body in which a plurality of piezoelectric bodies and a plurality of internal electrodes are alternately laminated and sintered. The plurality of internal electrodes comprise a first electrode and a second electrode. The laminate body has an active portion in which the first electrode and the second electrode are arranged to overlap in a laminate direction of the laminate body, and inactive portions in which the first electrode and the second electrode are arranged not to overlap in the laminate direction of the laminate body. The inactive portions are provided on both sides of the active portion. The inactive portions are provided with a metal oxide layer made of a material having a melting point higher than a sintering temperature of the piezoelectric bodies and being soluble in the piezoelectric bodies.

A projector includes a projection device, a cross line positional information acquiring device for acquiring positional information of a cross line between a projection surface of the projection device and a plane crossing the projection surface, an inclination detecting device for calculating an angle of inclination between a projection optical axis of the projection device and the projection surface based on the positional information acquired by the cross line positional information acquiring device, and an image distortion correcting device for correcting a trapezoidal distortion of an input image supplied to the projection device, based on the angle of inclination calculated by the inclination detecting device.

Projector with a device for measuring angle of inclination

A multilayer piezoelectric element is provided with a multilayer body, a first external electrode on a side face of the multilayer body, and a second external electrode outside the first external electrode. The multilayer body consists of an alternate stack of a plurality of piezoelectric members and a plurality of internal electrodes. The first external electrode is electrically connected to predetermined internal electrodes. The second external electrode extends in a wave pattern along a stack direction of the multilayer body and is of flat plate shape. The first external electrode and the second external electrode are electrically and physically connected through a plurality of connections.

Provided is a multilayer piezoelectric device high in reliability and easy in formation of a unit when incorporated into various devices. In a multilayer piezoelectric device, each second external electrode is integrally formed including a main body part electrically and physically connected to a first external electrode, and an extending part having an upper end projecting with respect to an upper face of laminate in a stack direction. This permits the extending part of the second external electrode to be used as a terminal, and, because the second external electrode is integrally formed, the second external electrode can be prevented from breaking. Therefore, it results in improving the reliability of piezoelectric device. Furthermore, between second external electrodes facing each other, a distance between extending parts is larger than a distance between main body parts, and thus it becomes easy to form a unit of the piezoelectric device when incorporated in various devices; e.g., a plate for application of a preload is placed on the upper face of the laminate.

Multilayer piezoelectric device

A first area and a second are formed in an image projected by a projector. A standard image plate is placed in a surface on which an image for the first area is projected. A standard image has been drawn on a standard image plate and is displayed in correct colors when white light is projected on the standard image plate. The projector projects white light as the image for the first area. An image for the second area is projected on a projecting surface. A user operates an operating section so that the image in the second area is closer to the standard image. A color correcting section corrects the colors of the image in the second area on the basis of information inputted to the operating section.

Color adjusting method for projector

An image sensor is installed in the vicinity of a projection lens. The image sensor images a projected and displayed image and a screen. A projection display area and a screen area are detected from the image imaged by the image sensor. An inputted image data is corrected so that the projection display area matches the screen area. The image to be displayed is automatically displayed in a shape, which matches a display surface of the screen.

Projector

A steel composition, in which, Si content is regulated to a given range and Nb and Cu or Ni, Mo are compositively added, and a recrystallization annealing is carried out to form an internal oxide layer just beneath a surface of a steel sheet and a surface oxide simultaneously formed on the surface of the steel sheet is removed by pickling. As a result, the formation of oxides of Si, Mn and the like is considerably decreased on the surface of the steel sheet in a subsequent heating before plating because the above internal oxide layer acts as a diffusion barrier. Thus, there can be obtained high tensile strength hot-dipped steel sheets having a considerably excellent plating property.

High tensile strength hot dip plated steel and method for production thereof

A remote control signal from a remote controller ( ) is received by one of remote control optical reception parts ( to ), and the respective reception signals are decoded by decoders ( to ). At this moment, the decoders ( to ) extract an address code included in the reception signals received by the remote control optical reception parts ( to ). Based on this address code, an effective-ineffective signal showing effectiveness or ineffectiveness of the decode signal is created. When the effective-ineffective signal shows effectiveness, a decoder selection part ( ) adopts a decoder signal of the corresponding decoder.

Remote control signal reception device

A surface treated tin-plated steel sheet which has an alloy layer formed on the surface of a steel sheet, a tin plating layer being formed on said alloy layer with a remaining exposed portion of the alloy layer having an area of 30% or more of that of the alloy layer and, formed on said tin plating layer and said exposed portion of the alloy layer, a coating film containing P and Si in an amount of 0.5 to 100 mg/m2 and 0.1 to 250 mg/m2, respectively; and a chemical treatment solution for use in preparing the steel sheet which comprises a phosphate ion, a tin ion and a silane coupling agent and has a pH of 1.5 to 5.5. The surface treated tin-plated steel sheet is free from chromium which causes problems from an environmental view point, and also is excellent in adhesion with a paint, corrosion resistance after being coated, rust resistance, and formability.

Surface treated tin-plated steel sheet and surface treatment solution

The coated steel sheet includes a zinc phosphate coating containing Mg on a surface of a galvanized steel sheet, and an orthophosphoric acid ester-containing coating on a surface of the zinc phosphate coating. The coated steel sheet has no coating fall-off even during a chemical conversion treatment step of an automobile producing line and has excellent perforative corrosion resistance either with no-painting or after electrodeposition painting, chemical conversion treatability and press formability.

Surface treated steel sheet and method for production thereof

The coating composition includes a methacrylic resin prepared by copolymerization of styrene or a substituted styrene (A), a methacrylic ester obtained from an alcohol having at least two carbon atoms and methacrylic acid (B), and an olefinic compound having at least one carboxylic group (C), in which the molar ratio thereof is 1:(0.05 to 44.5):(0.12 to 13). A metal sheet lubricated with the coating composition has superior characteristics of dissolution of the film in an alkaline solution, chemical processing, paint dryness, blocking resistance, corrosion resistance, stability of coating composition, and press formability (powdering resistance and galling resistance).

Coating composition and lubricated metal sheets

The coated steel sheet is a zinc-based plated steel sheet which has a zinc phosphate-based coating containing magnesium thereon and a silicone resin coating containing a functional group which reacts with an organic substance on the surface of the zinc phosphate-based coating. The coated steel sheet has superior perforative corrosion resistance, paint adhesion, electrodesposition paintability, press formability, and weldability without using chromium and therefore is useful as an anti-corrosive steel sheet for automobile bodies.

Surface treated steel sheet

A galvanized steel sheet includes a galvanized coating layer having a coating weight of from about 20 to about 60 g/m,formed on at least one surface of the steel sheet, and a zinc phosphate coating layer having a coating weight of from about 0.5 to about 3.0 g/m,formed on the galvanized coating layer. The zinc phosphate coating layer contains from about 0.5 to about 10.0 percent by weight of magnesium, from about 0.1 to about 2.0 percent by weight of nickel, and from about 0.5 to about 8.0 percent by weight of manganese. However, the manganese content and the nickel content satisfy the following relationship: &lsqb;Ni&rsqb;&times;7.6&minus;10.9&lE;&lsqb;Mn&rsqb;&lE;&lsqb;Ni&rsqb;&times;11.4 wherein &lsqb;Mn&rsqb; represents the manganese content, in percent by weight, and &lsqb;Ni&rsqb; represents the nickel content, in percent by weight. This steel sheet exhibits superior perforative corrosion resistance. The steel sheet also exhibits superior press workability by further controlling the magnesium, nickel, and manganese contents.

Perforative corrosion resistant galvanized steel sheet

A highly corrosion resistant steel sheet for fuel tank comprising a lowermost layer of Zn or Zn-based plating layer deposited on each side of the steel sheet; a chemical conversion film deposited on each of the Zn or Zn-based plating layer; a metal powder-containing organic resin film deposited on one of the chemical conversion film, said metal powder-containing organic resin film containing Al and Ni metal powders and an amine modified epoxy resin; and a silica-containing organic resin film deposited on the other chemical conversion film, said silica-containing organic resin film containing at least one resin having at least one functional group selected from hydroxyl group, isocyanate group, carboxyl group, glycidyl group, and amino group; silica; and a lubricant. The steel sheet of the present invention has excellent corrosion resistance, press workability, resistance weldability and brazing ability, and therefore, the steel sheet of the present invention is particularly useful when it is used in contact with an alcohol or an alcohol-blended gasoline.

Steel plate for highly corrosion-resistant fuel tank

Growing community of inventors

Tokyo, Japan

Kazuo Mochizuki