Hitachi, Ltd.

Ricoh Printing Systems, Ltd.

Hitachi Koki Co., Ltd.

Hitachi Printing Solutions, Ltd.

Hitachi Seiko, Ltd.

Ricoh Company, Ltd.

Osaka University

Dowa Electronics Materials Co., Ltd.

Takahiro Yamada

Hitoshi Kida

Shinya Kobayashi

Kunio Satou

Kazuo Shimizu

Yasumasa Matsuda

Satoru Tobita

Tomohiko Koda

Katsunori Kawasumi

Eiji Yoshino

Toshitaka Ogawa

Yoshio Maruyama

Hidetoshi Fujii

Tohru Akatsu

Tetsuo Doi

Lee Chahn

Yoshikane Matsumoto

Kenichi Kugai

Akemi Ouchi

Fumiaki Noda

Satoshi Namekawa

Satoshi Shimada

Kazuo Hiramoto

Tadashi Kuwabara

Kenichi Inoue

Kanji Kawakami

Heiji Watanabe

Toshihiko Ueyama

Takayoshi Shimura

Kenji Yamada

Takuji Hosoi

Mamoru Okano

Motohisa Nishihara

Tsutomu Maekawa

Osamu Machida

Kunihiro Tamahashi

Makoto Kurosawa

Takuji Torii

Toshiharu Sumiya

Nobuhiro Noto

Atsushi Ebara

Syoji Sagae

Kozo Ogi

Hiroomi Kozawa

Syoichi Ito

Shinji Matsuoka

Osamu Isoo

Katsuya Kawai

Masatoshi Sakata

Nobuhiro Kurosawa

Masuo Furutono

Kazunobu Hayashi

Mikito Nozaki

Mitsuhiro Nakagaki

Takao Matsuoka

Michinobu Watahiki

Naoto Ueda

Yuto Hiyama

Taisaku Kohzuma

Makoto Yoshino

A semiconductor device () includes a base layer (), an interface layer (), and a deposition layer (). The base layer () includes a nitride semiconductor that contains gallium. The interface layer () is adjacent to the base layer (). The interface layer () contains gallium oxide. The deposition layer () is adjacent to the interface layer (). The deposition layer () has a wider band gap than the interface layer (). The interface layer () preferably has crystallinity. The interface layer () preferably contains &#x3b1;-phase GaO.

Semiconductor device and method for manufacturing semiconductor device

A silver-coated copper alloy powder, which has a low volume resistivity and excellent storage stability (reliability), is produced by coating a copper alloy powder, which has a chemical composition comprising 1 to 50 wt % of at least one of nickel and zinc and the balance being copper and unavoidable impurities (preferably a copper alloy powder wherein a particle diameter (Ddiameter) corresponding to 50% of accumulation in cumulative distribution of the copper alloy powder, which is measured by a laser diffraction particle size analyzer, is 0.1 to 15 &#x3bc;m), with 7 to 50 wt % of a silver containing layer, preferably a layer of silver or an silver compound.

Silver-coated copper alloy powder and method for producing same

A monitoring apparatus has: an abnormality detecting unit which can detect an abnormality of a self apparatus; a second communication unit for receiving state information through a second communication network; a plant information forming unit for forming plant information as information regarding the whole plant equipment based on a plurality of state information; a first communication unit for transmitting the plant information to a maintenance tool through a first communication network; and an abnormal-case control unit constructed in such a manner that when the abnormality detecting unit detects the abnormality, a substituting request is transmitted to the other control unit, when a response to the substituting request is affirmative, an operation of the self apparatus is stopped, and when the response to the substituting request is negative or when the response to the substituting request is not received, the state information is transferred to the maintenance tool.

Plant monitoring and control system and plant monitoring and control method

A method for manufacturing a liquid discharging head, the method including forming a plurality of nozzles that discharge liquid droplets, forming a plurality of piezoelectric elements that generate pressure for discharging liquid droplets from the respective nozzles; and performing a repolarization process on the piezoelectric elements to set non-uniformity of the droplet discharging characteristics of the nozzles to be in a predetermined range by combining adjustment of a polarization sensitivity and adjustment of a polarization voltage for each of the piezoelectric elements.

Method of manufacturing liquid discharging head

This invention includes a control device and a maintenance support device. The maintenance support device included in the plant monitor and control device selects temporary setting target logic element among logic elements contained in a control logic data, generates a temporary setting target logic element data, and generates a temporary setting logic element parameter data in accordance with a value of logic element parameter inputted by an operator. The control device memorizes the temporary setting target logic element data sent from the maintenance support device as the temporary setting target logic element data, and also the logic element parameter data before the temporary setting corresponding to the logic element designated by the temporary setting target logic element data among the logic element parameter data. Then, the control device renews the logic element parameter data located in the saving area with use of the temporary setting logic element parameter data sent from the maintenance support device.

Plant monitor and control device and a maintenance support method thereof

To provide a magnetic field control apparatus capable of reducing a width of a correcting plate. The magnetic field control apparatus includes a conductive vacuum ductdisposed between dipole magnet magnetic polesand a conductive correcting plate. The correcting plateis formed of a material having an electric conductivity higher than that of the vacuum duct. A plurality of conductive correcting platesare disposed in each of four areas, the four areas being formed by dividing a cross section of a vacuum ductextending perpendicularly to a direction in which a charged particle beam travels by a symmetrical surface having each of both magnetic poles of the dipole magnet defined as a mirror image and a plane which extends perpendicularly to the symmetrical surface and through which a center of gravity of the charged particle beam passes.

Magnetic field control apparatus and dipole magnet

Disclosed herein are provided an arrangement of devices suitable to downsize a synchrotron, a synchrotron using such an arrangement, and a particle therapy system using the synchrotron. In the synchrotron, a plurality of deflection magnets and a single defocusing quadrupole magnet are arranged between a first extraction deflector and a second extraction deflector. The defocusing quadrupole magnet is arranged between deflection magnets among the plurality of deflection magnets, a focusing quadrupole magnet is arranged on the side of an inlet of the first extraction deflector, and a focusing quadrupole magnet is arranged on the side of an outlet of the second extraction deflector.

Synchrotron and particle therapy system using the same

A control apparatus for a plant system has data input/output units for inputting measured data obtained from a plant and a control command for the plant, a data transmission unit for transmission of data between a control unit and a plant monitor unit which are coupled to each other through a network, and a stimulated data mass setting and cancelling unit for performing mass setting of data handled by the data input/output unit and/or data handled by the data transmission unit to simulated data managed in the form of a list table by means of a maintenance tool and performing mass cancelling of the stimulated data set in the list table.

Control apparatus for a system of monitoring and controlling a plant including simulated data mass setting and cancelling means

A liquid discharging head includes: a plurality of nozzles that discharge liquid droplets; and a plurality of piezoelectric elements that generate pressure for discharging liquid droplets from the respective nozzles, wherein the piezoelectric elements are performed with repolarization process to set non-uniformity of the droplet discharging characteristics of the nozzles to be in a predetermined range by combining adjustment of a polarization sensitivity and adjustment of a polarization voltage for each of the piezoelectric elements.

Liquid discharging head, method of manufacturing liquid discharging head, and image forming apparatus

In an ink jet head manufacturing device, first and second diodes are arranged on a path extending from a gate of a control unit to an individual electrode of an ink-pressure control part in an ink jet head, the first diode allowing a current from the individual electrode of the ink-pressure control part to flow into a first wiring, and the second diode allowing a current from a second wiring to flow into the individual electrode of the ink-pressure control part. A short-circuit unit is arranged to short-circuit the first wiring and the second wiring when depolarization or polarization of the ink-pressure control part is performed.

Ink jet head manufacturing device, ink jet head manufacturing method, and ink jet device

An image forming apparatus having a liquid ejection head including a plurality of nozzles for ejecting droplets and a plurality of piezoelectric elements for generating a pressure for discharging droplets in respective nozzles. The image forming apparatus includes a polarization adjustment unit that performs a polarization adjustment in parallel for adjustment of target nozzles.

Method for adjusting uniformity of liquid ejection from a liquid ejection head

A method for manufacturing an inkjet recording head includes an ejecting step, a measuring step, dividing step and applying step. The ejecting step ejects test ink droplets and print ink droplets from nozzles. The measuring step measures ejection results of the test ink droplets. The dividing step divides a plurality of nozzles into a plurality of groups based on the ejection results. The applying step applies a group-based polarizing voltage determined for each group to the piezoelectric elements belonging to a corresponding group to polarize the piezoelectric elements so that ejection results of the print ink droplets fall in a predetermined range.

Method for manufacturing inkjet recording head of inkjet recording device

A droplet ejecting device includes a nozzle unit, a piezoelectric member and a drive voltage generating unit. The piezoelectric member has a common electrode and a discrete electrode. A first differentiation by polarization voltage of a characteristic curve indicating change in a polarization of the piezoelectric member with respect to change in the polarization voltage has a plurality of extremal values including a first extremal value at a prescribed positive voltage Vbp that is the smallest polarization voltage among plus polarization voltages corresponding to the plurality of extremal values, and a second extremal value at a prescribed negative voltage Vbn that is the largest polarization voltage among minus polarization voltages corresponding to the plurality of extremal values. The drive voltage generating unit generates a drive voltage having a range between a first negative voltage Veand a first positive voltage Ve, and applies the drive voltage between the common electrode and the discrete electrode. Vbp, Vbn, Ve, and Veare set such that Vbn&#x3c;Ve&#x3c;0 and 0&#x3c;Ve&#x3c;Vbp.

Inkjet recording device, ejecting device provided therein, and method of calibrating ejection characteristic for droplet

In a droplet ejection device, a latch circuit acquires discharge data in which a resolution is set up for each resolution section in a transport direction of a recording medium, and sets data elements in each resolution section for respective ones of a plurality of nozzles. An output enable signal generating unit generates an output enable signal periodically at intervals of a different distance. A drive waveform applying unit applies a drive waveform to a common electrode line of piezoelectric elements of the nozzles in synchronization with the output enable signal, the drive waveform having a time to discharge each piezoelectric element gradually. A switching circuit turns on or off a switch based on a logical AND of the output enable signal and the discharge data and grounds an individual electrode of each piezoelectric element.

Droplet ejection device and droplet ejection method

The method of ejecting microdroplets of ink includes a first step for generating one ink column on the outside of the nozzle and for separating a tip end of the one ink column from a remaining part of the one ink column to form a microdroplet of ink on the outside of one nozzle, and a second step for controlling an ink volume velocity in the ink pressure chamber that is connected to the nozzle to generate another ink column and to push the another ink column out of the nozzle, thereby causing the another ink column to overtake and merge with the remaining part of the one ink column and to return into the nozzle while pulling the remaining part of the one ink column back into the nozzle.

Method of ejecting microdroplets of ink

Growing community of inventors

Hitachinaka, Japan

Takahiro Yamada