Hitachi, Ltd.

Hitachi Displays, Ltd.

Panasonic Liquid Crystal Display Co., Ltd.

Tokyo Ohka Kogyo Co., Ltd.

Hitachi Power Semiconductor Device, Ltd.

Kyoko Kojima

Motoyasu Terao

Yuko Tsuchiya

Harukazu Miyamoto

Shinya Yamaguchi

Yoshiaki Toyota

Takeshi Ishida

Takeshi Maeda

Yuichiro Hashimoto

Minoru Sakairi

Toshimichi Shintani

Shinichiro Aikawa

Masao Suga

Masuyoshi Yamada

Satoshi Ozawa

Mitsuru Saeki

Hiroyuki Minemura

Takuya Matsumoto

Takeshi Shimano

Hideo Hada

Kazuhiro Suzuki

Kan Yasui

Daiju Shiono

Takashi Hattori

Hiroyuki Yoshimoto

Tsuyoshi Sonehara

Takashi Irie

Yasuki Kita

Tadao Ino

Katsuhiko Yamaguchi

Hiroyuki Matsushima

Provided is a diagnosis technique with high reliability when a state of lubricating oil of a rotary machine such as a wind power generator is diagnosed by a state monitoring sensor. A diagnosis system of lubricating oil includes a lubricating oil utilization device, a lubricating oil tank for storing lubricating oil to be supplied to the lubricating oil utilization device, and a sensor which measures characteristics of the lubricating oil. In this system, the state of the lubricating oil is diagnosed by using sensor data obtained after a time required for air bubbles in the lubricating oil generated at the time of use of the device disappear elapses since the lubricating oil utilization device is regularly or irregularly stopped.

Diagnosis system of lubricating oil and diagnosis method of lubricating oil

A method for diagnosing a lubricant containing an additive, is executed by an information processor. Chromaticity information of the lubricant which is a diagnosis target is obtained from an input device, the chromaticity information is obtained by an optical sensor, and a storage device stores a deterioration curve of the lubricant which is the diagnosis target, the deterioration curve is determined in advance regarding a transition in a chromaticity coordinate caused by a deterioration, and a chromaticity coordinate corresponding to a limit contamination level determined in advance using a contaminated lubricant. The processing device obtains a chromaticity coordinate of the lubricant from the chromaticity information and uses a relative contamination level obtained from a distance of the chromaticity coordinate of the lubricant from the deterioration curve and a distance of the chromaticity coordinate corresponding to the limit contamination level from the deterioration curve.

Method for diagnosing lubricant and system of monitoring lubricant

A method for diagnosing the deterioration of a lubricant, and a system and method for monitoring a lubricant of a rotating machine are capable of diagnosing the deterioration of an additive to a lubricant. The concentration of the additive to the lubricant is obtained by using chromaticity data obtained on the basis of measurement data from an optical sensor, and, on the basis thereof, the deterioration of the lubricant is diagnosed. In addition, the system for monitoring the lubricant is provided with an optical sensor, an input device, a processing device, a storage device, and an output device. The storage device stores, in a time series, the concentration of the additive to the lubricant, which is obtained with the optical sensor, and the processing device estimates the time at which the concentration of the additive reaches a threshold value on the basis of concentration data of the additive.

Method for diagnosing deterioration of lubricant, and system and method for monitoring lubricant of rotating machine

In a semiconductor device using a wide bandgap semiconductor material having a bandgap larger than that of silicon, reliability of the semiconductor device is improved by achieving a structure in which electric field strength in the vicinity of an outer end portion of a semiconductor chip is relaxed. A side surface of the semiconductor chip CHPis formed of a region Rincluding a first corner, a region Rincluding a second corner, and a region Rinterposed between the region Rand the region R. At this point, in a case of defining a minimum film thickness of a high electric field-resistant sealing member MR in the region Ras tand defining a maximum film thickness of the high electric field-resistant sealing member MR in the region Ras t, a relation of t&#x2264;1.5&#xd7;tis satisfied.

Semiconductor device, manufacturing method for semiconductor device, semiconductor module, and power conversion device

One of the pixel electrode and the counter electrode includes, on a protective film formed so as to cover the thin film transistor, a planar metal electrode formed so as to cover a rough surface formed in the reflective pixel part; and a planar transparent electrode formed in the reflective pixel part and the transparent pixel part so as to cover the metal electrode. Another one of the pixel electrode and the counter electrode includes, on an insulating film formed so as to cover the one of the pixel electrode and the counter electrode, a plurality of linear electrodes provided in parallel with one another so as to overlap the one of the pixel electrode and the counter electrode. The transparent electrode included in the one of the pixel electrode and the counter electrode is formed of a transparent conductive film which is formed through application.

Liquid crystal display device

To overcome the problem that a device performance is degraded by the edge roughness of a photoresist pattern, a mixture of polynuclear phenol compounds having, in one molecule, 0 to 6 functional groups which are chemically converted due to actions of an acid with the solubility in an alkaline developer reduced is used as a material for photoresist. In the mixture, two or more triphenyl methane structures are bonded to portions other than the functional group in the nonconjugated state. Furthermore, the mixture comprises polynuclear compounds with the average number of functional groups of 2.5 or below and includes the polynuclear compounds not having any functional group per molecule by 15% or less in the term of weight ratio, and the polynuclear phenol compounds having 3 or more functional groups per molecule by 40% or less.

Materials for photoresist, photoresist composition and method of forming resist pattern

A liquid crystal display device comprises a first electrode disposed in a pixel area including an upper layer of a thin film transistor formed on a main surface of a first insulating substrate, a capacitive insulating layer disposed on the first electrode, and a second electrode disposed on the capacitive insulating layer. The first electrode and the second electrode are formed using a coated transparent electroconductive film and the capacitive insulating layer is formed using a coated insulating film.

Liquid crystal display device which reduces unevenness in an upper surface of at least an electrode

A liquid crystal display device is provided having a transmissive region and a reflective region in a pixel region in which a protective film is formed covering a thin film transistor over a substrate, wherein in the reflective region, an uneven surface is formed on a surface of the protective film, and a capacitor electrode which comprises a transparent conductive film and which is electrically connected to a source electrode of the thin film transistor, a first capacitor insulating film, and a reflective plate which also functions as an opposing electrode and in which the uneven surface formed on the protective film surfaces and appears with the capacitor electrode and the first capacitor insulating film therebetween are formed over the surface of the protective film, a second capacitor insulating film and a pixel electrode are formed covering the reflective region and the transmissive region.

With the tendency of reducing the size of semiconductor circuit patterns, edge roughness on a resist pattern is increased when pattern dimensions required are close to the size of the resist molecules. Provided is a technique for preventing degradation of the device performance and negative effects over the system performance caused by the phenomena. A photoresist compound is used, which is a molecule having functional groups that are chemically converted due to an action of an acid with reduced solubility in alkaline developer.

Materials for photoresist, negative-tone photoresist composition, method of forming resist pattern, and semiconductor device

The present invention relates to an information-recording medium for recording and reproducing information by using light and a method for recording information for the purpose of high-speed and high-density recording. The medium has a structural unit having a conductive polymer layer and an electrolyte layer sandwiched by a pair of electrode layers, each of which contains a thermally decomposable or crosslinkable compound. The medium described above allows high-speed rotation of the medium as it has a narrower range heated during recording and is more tolerant of displacement of auto-focusing or tracking, and also allows high-speed and high-density recording. The medium also allows lamination of multiple layers and easier selection of layers therein.

Information-recording medium and method

Disclosed herewith is a method for enabling fast and high density recording of information. A voltage is applied to a recording layer formed between a pair of electrodes. The distance between the pair of electrodes is set wider at one of land and groove areas of a subject optical disk and narrower at the other or the distance is set so that light absorption occurs only in either of the land and groove areas. The optical disk is also provided with a layer of which light absorption spectrum changes according to the application of an electric current, thereby absorbing the light. The new layer may be the recording layer itself or a layer adjacent to the recording layer. Because a heat generates only from a small area of the optical disk at the time of recording, the disk can be turned rapidly and permissively to the auto focusing and tracking offsets, thereby enabling fast and high density recording. The disk can thus be formed with easily selectable multiple layers.

Information recording medium having pair of electrodes

This invention provides an electrochromic device which has superior coloration repeat properties, high light transmittance and small thickness. A film is provided comprising a first electrode and second electrode in the same plane, and an electrochromic region and electrolyte region laminated in this plane. The electrochromic region is provided on the second electrode, the electrolyte region is provided on the first electrode, and the boundary between the electrochromic region and electrolyte region lies in the planar direction of the film.

Electrochromic device

An information recording medium includes an insulating member, first and second electrodes formed in one plane of the insulating member, and a conductive layer having an electrochromic material providing continuity with the first and second electrodes. A gap between the first and second electrodes is insulated.

Information recording medium, information recording device, and information recording method

An information recording apparatus includes a multilayer information recording medium having a first layer containing an electro-chromic material, an electrode layer applying a voltage to the first layer to color the first layer, a second layer containing an electro-chromic material, a unit for applying the voltage to the first layer, a first optical irradiating unit for irradiating a first optical spot onto the first layer, and a second optical irradiating unit for irradiating a second optical spot onto the second layer after irradiating the first optical spot onto the first layer.

Information recording apparatus, recording media and recording method

An information recording method and information recording apparatus is capable of resolving the trade-off relation between recording density and transmittance, wherein either the reproduction (playback) signal quality or the recording sensitivity is lowered. For this purpose, a voltage is applied by way of ball bearings or slip rings to a specified layer of a medium having multiple layers. The light transmittance of the recording layer is changed by application of this voltage. The tradeoff relationship between recording density and transmittance is eliminated thereby, and the recording density and transmittance levels are both improved, so as to enhance the recording reliability.

Growing community of inventors

Kunitachi, Japan

Kyoko Kojima