Ando Electric Company

Kabushiki Kaisha Toshiba

Mitsubishi Heavy Industries Limited

Other

Sony Corporation

Toshiba Electronic Devices & Storage Corporation

Mitsubishi Heavy Industries Machinery Systems, Ltd.

Mitsubishi Heavy Industries Printing & Packaging Machinery, Ltd.

Kyusyu Ando Electric Company Limited

Shoichi Aoki

Akio Ichikawa

Takao Suzuki

Yoshimitsu Asahina

Sinya Nagashima

Richard M Ehrlich

Tetsuro Miyazaki

Fernando Anibal Zayas

Hideaki Sakurai

Eric R Dunn

Masayuki Eda

Hiroshi Ishibuchi

Tohru Mori

Yasuharu Suda

Kengo Yamaguchi

Fumio Akikuni

Masahiro Harada

Norifumi Tasaka

Tetsuo Yano

Kazuya Sugimoto

Takafumi Yoshida

Minoru Sueda

Makoto Kaji

Osamu Iida

Hitoshi Isono

Junichi Ibushi

Ryuta Kumagai

Osamu Yamamoto

Manabu Hanjo

Kazumasa Takada

Ryuji Iwashita

Seiji Enma

Osamu Shinya

Shinji Ueoku

Yoshiaki Ohtsuka

In a magnetic recording drive that includes a shingled magnetic recording (SMR) region and a conventional magnetic recording (CMR) region, the quantity of validation data that is stored by the CMR region is reduced. In the magnetic recording drive, verification data stored in the CMR region is invalidated under certain circumstances, including when an SMR band is closed, when an SMR band is indicated by a host to be reused, when an SMR band is indicated to be finished, and when a last data track of an SMR has data stored therein.

Handling of verification data in disk drive cache

A sheet drying device and method, and a box making machine, wherein provided are: a heating lamp () that is disposed facing a printing face of a cardboard sheet (S); a voltage adjusting unit () that adjusts the voltage of electrical power supplied to the heating lamp (); a voltage setting unit () that sets the working voltage of the heating lamp () by increasing or decreasing a reference voltage according to the thickness of a water-based paint on the cardboard sheet (S), where the reference voltage is a voltage that is less than the rated voltage of the heating lamp () by a preset prescribed value; and a controlling device () that changes the voltage of the heating lamp () to the working voltage set by the voltage setting unit () using the voltage adjusting unit ().

Sheet drying device and method, and box making machine

A system for diagnosing performance degradation of a machine element includes an AE sensor that generates an AE waveform signal; a vibration sensor that generates an acceleration signal; a signal processing unit including an AE signal processing system that performs predetermined signal processing on the plurality of AE waveform signals, a vibration signal processing system that performs predetermined signal processing on the acceleration signal, and a switching parameter generating section that generates a predetermined numeric parameter to switch a measuring mode from the AE method to the vibration method; and controlling unit that selects a result of the processing in performed by the AE signal processing system at the initial stage and selects, after the numeric parameter successively turns from increasing to decreasing, a result of the processing by the vibration signal processing system.

Method for diagnosing performance degradation of machine element, and system for same

According to one embodiment, a magnetic disk drive including a disk including a plurality of track groups each including a first write track and a second write track partially overlapping the first write track, and a processor configured to count a write count corresponding to write processing of adjacent track groups for each of the plurality of track groups, and calculate an estimated time at which the write count reaches a particular value and, if a track group in which the estimated time is approximate is detected, read data of the approximate track group, and execute rewrite processing of writing the data to the track group in which the estimated time is approximate, at a time earlier than the estimated time.

Magnetic disk drive and rewrite processing method

An information recording device includes a recording medium with a plurality of data tracks and a controller that stores management information regarding data recorded in a group of adjacent data tracks, the recorded data including first data recorded in a first data track that is partially overwritten by second data subsequently recorded in a second data track that is adjacent to the first data track. The controller recovers management data of the recorded data based on whether or not a sector in the first data track that is adjacent to a sector in the second data track can be read by offset read processing when the sector in the second data track cannot be read by normal read processing.

Information recording device and data recovery method

In a printing press, it is configured such that a newspaper web offset printing press is composed by a feeder device, a printing device, a guiding device, a turn bar device, and a folding unit; as a guiding device, there are provided an upstream side guide roller and a downstream side guide roller which are disposed with a predetermined interval along a transportation direction of a web for guiding transportation of the web; and there is disposed an ink-jet printer for performing digital printing on the web guided between the guide rollers. By setting diameters of the upstream side guide roller and the downstream side guide roller to different values, vibration of the print medium which is transported while being guided by the guide rollers is suppressed, and the print quality is thereby improved.

Printing press

Disclosed herein is an imaging apparatus including: an apparatus body in which a heat radiating part is disposed; and a heat dissipating section formed at an upper portion of the apparatus body, wherein the heat dissipating section has a recess provided in an upper portion of the apparatus body, and a closing plate so mounted as to close the recess, a space is formed between the recess and the closing plate, the recess is formed with a vent hole through which the inside of the apparatus body and the space communicate with each other, the closing plate is provided with a heat dissipating hole through which the space communicates with the exterior, and the vent hole and the heat dissipating hole are positionally deviated from each other.

Imaging apparatus

In a vessel () to which waste liquid () which contains ink pigment, water and cleaning liquid used in a printer is supplied, a metal electrode plate () which allows the waste liquid () to flow therethrough is disposed to partition the inside of the vessel () into a first region (a) and a second region (b). A high voltage from a high-voltage power supply () is applied to the metal electrode plate () while a grounding electrode () is connected to the first chamber (a) to generate an electrostatic field between the metal electrode plate () and the grounding electrode () so that the water and the ink pigment are electrostatically agglomerated from the waste liquid () making use of electrophoresis of the ink pigment by the electrostatic field thereby to separate the waste liquid in the first region (a) into the cleaning liquid, water and ink pigment.

Waste liquid regenerator of printing machine

A filter processing system making it possible to be able to set a frequency pass-band automatically and to provide the optimum filter to an input signal. A filter processing method of an output signal of an Optical Time Domain Reflectometer (OTDR) in a chromatic dispersion distribution measuring apparatus is disclosed. The filter processing method includes establishing measuring-condition parameters, generating an ideal signal waveform based on previously established chromatic dispersion values and the measuring-condition parameters, and providing correlation results between the ideal signal waveform and a filter input signal. The method also includes comparing the correlation results to a threshold value to generate a minimum chromatic dispersion value and a maximum chromatic dispersion value, and performing filter processing for the output of the OTDR based on the minimum chromatic dispersion value and the maximum chromatic dispersion value.

Filter processing system for the output signal of optical time domain reflectometer in the chromatic dispersion distribution measurement apparatus

An optical fiber chromatic dispersion distribution measuring apparatus for measuring the chromatic dispersion distribution of an optical fiber under test comprising two light sources at least one of which can change wavelength thereof, wherein light beams having different wavelengths from each other and emitted from the two light sources are inputted to the optical fiber under test to measure a four-wave mixing light beam generated by interaction between the two light beams by optical time domain reflectometer (OTDR); wherein an optical bandpass filter having a fixed center wavelength is provided at a previous stage of the optical time domain reflectometer (OTDR); and wherein a coherence controller for controlling coherence of at least one of the light beams outputted from the two light sources.

Optical fiber chromatic dispersion distribution measuring apparatus and measuring method

A wavelength dispersion distribution measuring apparatus of an optical fiber includes light signal generation section for generating two light signals with different wavelengths, section for combining the signals and shaping a light pulse signal, directional coupling section for inputting the light pulse signal to one end or the other end of a measured optical fiber and also branching total back-scattered light from the measured optical fiber, wavelength extraction section for passing only a wavelength component of one of four-wave mixed light generated by interaction of two wavelengths launched, measuring section for measuring wavelength dispersion distribution data, changeover section - to - for switching the input side and the terminal side of the light pulse from one end to the other end of the measured optical fiber, and calculation section for performing superimposition processing of two measured results associated with the switching.

Measuring method and measuring apparatus of wavelength dispersion distribution characteristics of optical fiber

A photocoupler splits the light from a low-coherence light source into measuring light DL and local oscillator light KL. A photocoupler receives measuring light DL arid is input to an optical circuit to be measured. The photocoupler splits the reflected light RL. A polarization controller controls the state of polarization of the reflected light RL as split by the photocoupler . A photocoupler allows local oscillator light KL to be incident on a reflector mirror and splits local oscillator light KL. A photocoupler combines the reflected light RL as controlled in the state of polarization by the polarization controller , with the local oscillator light KL.

Low-coherence reflectometer with polarization control

A chromatic dispersion distribution measurement apparatus, comprises: a chromatic dispersion value calculation unit for calculating a plurality of actual chromatic dispersion values in an optical device at a plurality of wavelengths; and a chromatic dispersion interpolation unit for interpolating an expected chromatic dispersion value between the actual chromatic dispersion values calculated by the chromatic dispersion value calculation unit, in order to obtain a chromatic dispersion distribution as a function of wavelength.

Chromatic dispersion distribution measurement apparatus and method for the same

A chromatic dispersion distribution measurement apparatus, comprises: a portion information obtaining unit for obtaining a portion information which specifies a portion of an optical device to be measured; a sign information obtaining unit for obtaining a sign information which indicates a correct sign to be marked on a chromatic dispersion value in the specified portion; and a sign converting unit for converting an initial sign marked on the chromatic dispersion value in the specified portion, into the correct sign in accordance with the sign information obtained by the sign information obtaining unit.

Chromatic dispersion distribution measurement apparatus, method and storage medium for the same

An apparatus for measuring the chromatic dispersion profile of an optical fiber using two light sources and at least one of which is tunable in wavelength, in which two light beams of different wavelengths from said two light sources are injected into a optical fiber under test and the four-wave mixing light that is generated by interaction between said light beams of different wavelengths is measured with an optical time domain reflectometer (OTDR) characterized in that an optical bandpass filter having a fixed central frequency is provided at a stage upstream of said optical time domain reflectometer (OTDR).

Growing community of inventors

Tokyo, Japan

Shoichi Aoki