Kobe Steel, Ltd.

Kabushiki Kaisha Kobe Seiko Sho

Chitaka Manabe

Eiji Takahashi

Koyo Kegasa

Kaname Araki

Shin Iwasaki

Yoshito Fukumoto

Toshihide Fukui

Koji Inoue

Takuya Kusaka

Masakatsu Maruyama

Tatsuru Miyamoto

Yuichiro Goto

Ryo Tabuse

Nobuyuki Kawakami

Takayuki Hirano

Yasuaki Yamane

Yusuke Tanaka

Hodaka Miura

Naoki Tamura

Hidenori Sakai

Yuichi Iwasa

Hideo Ikeda

Ryo Katayama

Naokazu Sakoda

This pelletizer apparatus includes an observation unit for observing, from the outside of a housing chamber, a cut section of a synthetic resin cut by cutting teeth inside the housing chamber. The observation unit includes an optical system which sends an optical image of the cut section from the inside of the housing chamber to the outside of the housing chamber. Thus, with this pelletizer apparatus, the cut section can be visually checked clearly via the optical system.

Pelletizer apparatus

A resin pelletizer apparatus () is provided with: a die () that has a die surface () having a die hole () formed therein; a rotary blade () that cuts a resin extruded from the die hole () into a pellet shape in water when being rotated on the die surface () in the water; a sensor () that detects elastic waves generated by the rotary blade () during the rotation on the die surface (); and a determination unit () that monitors the output value of the sensor () and determines that an abnormality has occurred when the output value of the sensor () is outside a predetermined range (R).

Resin pelletizer apparatus and abnormality determination method for resin pelletizer apparatus

A kneader internal inspection device according to the present invention suspends and supports a photographing unit, which is arranged in an interior of a kneader and which photographs the interior, so as to be vertically movable in the interior of the kneader. Therefore, such a kneader internal inspection device is capable of easily inspecting the interior of the kneader.

Kneader internal inspection device

A protection tube thermocouple () includes a thermocouple (), and a protection tube () which accommodates the thermocouple (). The protection tube () includes a conical portion () formed on a front end () side of the protection tube (); and a hollow portion () which extends in the length direction of the protection tube () for connecting between a front end () and a rear end () of the protection tube () in the inside of the protection tube (), and into which the thermocouple () is received. The hollow portion () in the conical portion () has a tapered portion () configured such that the sectional area of the hollow portion () decreases toward the front end ().

Deterioration detector and thermocouple inspection device

Provided is a resin pelletizer device capable of monitoring cavitation. A resin pelletizer device () includes a die () including a die surface () in which die holes () are formed, rotary blades () that rotate on the die surface () in the water, thereby cutting resin extruded from the die holes () in the water into a pellet form, a sensor () that detects an elastic wave generated during the rotation of the rotary blades () on the die surface (), and a determination unit () that monitors an output value of the sensor (), and determines that cavitation occurs when the output value of the sensor () becomes less than a predetermined threshold.

Resin pelletizer device and cavitation monitoring method

A protecting tube deterioration detecting apparatus applies a predetermined electric current to a measurement target thermocouple with protecting tube for a predetermined time, calculates a temperature rise amount of the thermocouple, and determines, when the calculated temperature rise amount exceeds a predetermined threshold, that the protecting tube is deteriorated.

Protecting tube deterioration detecting apparatus and method therefor

A method for manufacturing a porous dielectric substrate including patterned electrodes includes a patterned electrode-forming step of preparing a support plate having a releasable flat face and then forming the patterned electrodes on the flat face, a porous dielectric substrate-forming step of feeding a material for forming the porous dielectric substrate onto the flat face having the patterned electrodes arranged thereon to form the porous dielectric substrate in which the patterned electrodes are embedded, and a separation step of separating the support plate from the porous dielectric substrate having the patterned electrodes embedded therein. In the patterned electrode-forming step, the patterned electrodes formed on the flat face are processed to have rough surfaces in the patterned electrode-forming step. Alternatively, after the flat face is coated with a releasing agent, the patterned electrodes are formed on the resulting flat face.

Methods for manufacturing porous dielectric substrates including patterned electrodes

An oscillator includes phase frequency detectors, each detecting the phase difference between two input signals (output signal and external reference signal) and outputting a control command signal for controlling the output signal to achieve a desired frequency on the basis of the phase difference. A plurality of ICs, each including a phase frequency detector, frequency dividers, a charge pump, and a lock detection circuit, is operated in parallel. A composite control command signal generated by combining outputs of the phase frequency detectors is output via a loop filter to a voltage-controlled oscillator. Whether phase noise is reduced sufficiently is determined on the basis of detection results by an amplitude detection circuit for detecting the amplitude of an AC component of the composite control command signal and the lock detection circuits. The phase frequency detectors are repeatedly reactivated until the phase noise is reduced sufficiently.

Oscillator including phase frequency detectors for detecting a phase difference between two input signals and outputting a control command signal

A feed antenna includes a pair of conductive members, a dielectric waveguide placed therebetween, a dielectric member that is placed between the conductive members and located close to the dielectric waveguide, and a plurality of dielectric binding sections for binding the dielectric waveguide to the dielectric member. One of the conductive members has a plurality of openings.

Feed antenna including dielectric waveguide

In a frequency converter, a phase-locked loop generates a local-oscillation signal having a low frequency, of a plurality of local-oscillation signals having different frequencies, based on an intermediate frequency beacon signal that results from mixing a predetermined beacon signal with the local-oscillation frequency signal. Even if the phase-locked loop is used to generate the low frequency local-oscillation signal only, a frequency offset and a phase noise taking place in remaining high frequency local-oscillation signals are compensated for or canceled out. The frequency converter thus results in a high frequency accuracy. This arrangement reduces the number of bulky, costly and power-consuming phase-locked oscillators, typically used in the quasi millimeter band or the millimeter band. A simplified, compact frequency converter is thus provided, reducing both installation and operating costs.

Frequency converter and radio communications system employing the same

A plurality of frequency conversion sections is provided, each of which comprises a first frequency mixer for converting the frequency of the input frequency signal by a signal from a first oscillator; a first filter for extracting an element signal from the output signal of the first frequency mixer; a second frequency mixer for converting the frequency of the output signal from the first filter by a signal from a second oscillator; and a second filter for extracting a element signal from the output signal of the second frequency mixer. The respective frequencies of the first and second oscillators are determined in accordance with a predetermined frequency setting rule specified by the relationship between the frequency conversion sections. The element signals sequentially arranged in a predetermined frequency interval can be rearranged in a desired frequency interval within a desired frequency bandwidth.

Frequency conversion apparatus

A method of measuring a furnace temperature in a hot isostatic pressing unit, including the steps of condensing a thermal radiation beam from an end portion of a closed-end tube in a high-pressure furnace of the hot isostatic pressing unit by an optical system, feeding the radiation beam from the optical system to a detector to measure the temperature in the furnace, wherein the optical system includes a solid lens having an incoming surface formed by a spherical surface with center at a temperature measurement objective point and having an outgoing surface formed by a spherical surface with center at a light collecting point, so as to condense a radiant energy from the temperature measurement objective point. In another aspect of the invention, the steps further comprising removing a wavelength of absorption by a low b.p. metal gas vaporized from a treatment material in the furnace or a capsule glass.

Growing community of inventors

Kobe, Japan

Chitaka Manabe