Kabushiki Kaisha Toshiba

Fujifilm Business Innovation Corp.

Other

Makoto Ochiai

Takahiro Miura

Hidehiko Kuroda

Masahiro Yoshida

Satoshi Yamamoto

Hiroyuki Adachi

Masato Furukawa

Satoya Sugiura

Minoru Rokutan

Shogo Hayashi

Satoshi Nagai

Mitsuaki Shimamura

Yasuhiro Yuguchi

Masaki Yoda

Hiroshi Nomura

Satoshi Okada

Kazuo Saito

Yoshihiro Fujita

Makoto Kondo

Tsuyoshi Ogawa

Takahiro Ikeda

Yusuke Watanabe

Masayuki Seko

Masayuki Nakamoto

Kentaro Tsuchihashi

Fukashi Osakata

Jun Semboshi

Tetsuro Aikawa

Setsu Yamamoto

Yoshinori Satoh

Kazumi Watanabe

Akira Tsuyuki

Yoshitaka Kobayashi

Tatsuya Oodake

Junichi Takabayashi

Yoshiyuki Matsuda

Takuro Hoshio

Kenta Shingu

Takuya Uehara

Katsuhiko Sato

Michio Sato

Tomoyuki Ito

Takeshi Hoshi

Naruhiko Mukai

Yoshifumi Sato

Hirokazu Karasawa

Itaru Chida

Motohiko Kimura

Haruyuki Namba

Yuji Sano

Yoshiaki Ono

Satoru Asai

Katsuyoshi Fukuda

Toru Onodera

Yutaka Togasawa

Masaru Otsuka

Shigeru Kanemoto

Hiroaki Igakura

Ryoichi Saeki

Tadahiro Mitsuhashi

Kiyoto Oyagi

Tatsuo Yamashita

Hitoshi Sakakida

Taiji Hirasawa

Yasumi Kitajima

Sayaka Inoue

Masato Murakami

Takuya Fuchi

Takuhisa Kondo

Shuuichi Umezawa

Hajime Obikawa

Shozo Hirano

An endless belt includes a base material layer containing a polymer material and conductive particles, in which in dynamic viscoelasticity measurement at a temperature of 35° C., a value of loss tangent at a measurement frequency in a range from 0.1 Hz to 10 Hz is smaller than a value of loss tangent at a measurement frequency in a range from 10 Hz to 100 Hz, and tensile stress when the base material layer is stretched by 5% at a temperature of 24° C. is 7 MPa or more, and when the base material layer is stretched by 5% at a temperature of 24° C. and held for a period of 10 minutes, a maximum value TSmax and a minimum value TSmin of the tensile stress during the period satisfy a relationship of {(TSmax−TSmin)/TSmax×100}≤15.

Endless belt, belt unit, and image forming apparatus

An image forming apparatus includes a photoconductor, a charging section that charges a surface of the photoconductor, an electrostatic charge image forming section that forms an electrostatic charge image on the charged surface of the photoconductor, a developing section that accommodates a developer containing a toner and develops the electrostatic charge image formed on the surface of the photoconductor by using the developer to form a toner image, a transfer section that includes an endless belt and transfers the toner image to a recording medium; and a cleaning section that includes a cleaning blade that comes into contact with a surface of the endless belt and performs cleaning of the surface of the endless belt with the cleaning blade, in which a dynamic friction coefficient μ between the endless belt and the cleaning blade is 0.10 or more and 0.25 or less, and the endless belt has an outer peripheral surface on which an uncharged toner is scattered by a wind force of wind pressure of 23 kPa or smaller at a temperature of 22° C. and relative humidity of 55%.

Image forming apparatus and transfer unit

A transfer device includes an intermediate transfer belt that has an outer peripheral surface to which a toner image is to be transferred, a primary transfer device that has a primary transfer member performing primary transfer of a toner image formed on a surface of an image holder to the outer peripheral surface of the intermediate transfer belt, and a secondary transfer device that has a secondary transfer belt arranged in contact with the outer peripheral surface of the intermediate transfer belt and performing secondary transfer of the toner image transferred to the outer peripheral surface of the intermediate transfer belt to a surface of a recording medium, in which the intermediate transfer belt has an indentation modulus A of 5,000 MPa or more, and the secondary transfer belt has an indentation modulus B of 300 MPa or less and a tensile modulus C of 250 MPa or more.

Transfer device and image forming apparatus

In an endless belt, the absolute value of an electrostatic capacitance C and the absolute value of an alternating-current resistance Z when an alternating voltage of 1 Vp-p is applied in a frequency range of from 10000 Hz to 0.1 mHz from a high frequency side satisfy Formula (1) below, and an alternating-current resistance Zwhen an alternating voltage of 1 Vp-p with a frequency of 0.63 Hz is applied satisfies Formula (2) below. Moreover, an alternating-current resistance Zwhen an alternating voltage of 1 Vp-p with a frequency of 630 Hz is applied satisfies Formula (3) below:log≤3.18×log−30.27;  Formula (1):6.3≤log≤6.9; and  Formula (2):9.1≤log≤9.9.  Formula (3):

Endless belt, transfer device, and image forming apparatus

An intermediate transfer body includes a base layer and a surface layer disposed on the base layer. The difference between the volume resistivity of the intermediate transfer body at an application voltage of 100 V, a temperature of 22&#xb0; C., and a relative humidity of 55% and the volume resistivity of the intermediate transfer body at an application voltage of 500 kV, a temperature of 22&#xb0; C., and a relative humidity of 55% is 2.0 log &#x3a9;&#xb7;cm or less. The difference between the volume resistivity of the intermediate transfer body at an application voltage of 500 kV, a temperature of 28&#xb0; C., and a relative humidity of 85% and the volume resistivity of the intermediate transfer body at an application voltage of 500 kV, a temperature of 10&#xb0; C., and a relative humidity of 30% is 1.0 log &#x3a9;&#xb7;cm or less.

Intermediate transfer body and image forming apparatus

An elastic member includes a substrate, and a single-layer elastic layer provided on the substrate. An elastic modulus of the elastic layer at a distortion of 10% is 0.15 MPa or more. When in the elastic layer, a thickness from the surface on a side opposite to the substrate to the substrate-side surface is t, and when in the elastic layer, a region from the surface on the side opposite to the substrate to a position at a depth of t/2.125 is referred to as an 'outer surface portion', and a region from the substrate-side surface to the position at a depth of t/2.125 is referred to as an 'inner surface portion', a ratio (elastic modulus of outer surface portion/elastic modulus of inner surface portion) of an elastic modulus of the outer surface portion to an elastic modulus of the inner surface portion is 0.8 or less.

Elastic member, transfer device, process cartridge, and image forming apparatus

According to one embodiment, a system includes control apparatus and server. Control apparatus includes collector, transmitter, receiver and main controller. Collector collects sensing data concerning control targets in social infrastructure. Transmitter transmits collected sensing data to server. Receiver receives control instruction from server. Main controller controls control targets based on control instruction. Server includes acquisition unit, database, generator and instructor. Acquisition unit acquires sensing data from control apparatus. Database stores sensing data. Generator generates control instruction by processing sensing data. Instructor transmits generated control instruction to control apparatus.

Control apparatus, control method, and infrastructure control system

According to one embodiment, a testing device of a turbine blade includes: a non-compressive elastic medium brought into close contact with a platform of the turbine blade in a state fastened to a turbine rotor; a probe which has piezoelectric elements arranged in an array and transmits ultrasound waves toward a fastening portion of the turbine blade through the elastic medium and receives echo waves; and a display portion for imaging an internal region of the fastening portion on the basis of the echo waves and displaying the same.

Turbine blade testing device and testing method thereof

Social infrastructure control system, control method, control apparatus, and server

An ultrasonic flaw detector including an ultrasonic probe for emitting an ultrasonic wave on an object to be inspected and receiving a reflected ultrasonic wave from the object, a drive element control unit for controlling a plurality of ultrasonic elements to emit an ultrasonic wave from the ultrasonic probe and to control a reflected ultrasonic wave from the object, and a calculation unit for obtaining, by using a refraction angle of the ultrasonic wave at a time of the ultrasonic wave entering the object, an incident position of the ultrasonic wave on a surface of the object, and a surface shape of a surface of the object at the incident position, the incident angle of the ultrasonic wave entering the incident position, and obtaining a plurality of ultrasonic elements to be driven, based on the incident position and the incident angle.

Ultrasonic flaw detector and ultrasonic flaw detecting method

An ultrasonic test equipment includes: a signal generating mechanism that generates a voltage waveform; an ultrasonic transmitting mechanism that excites ultrasonic vibrations having a lower frequency than a predetermined frequency to an object to be tested; an ultrasonic receiving mechanism that receives an ultrasonic response from the object to be tested; an AD converting mechanism that digitizes the received ultrasonic waveform; an analyzing mechanism that performs frequency analysis of the digital ultrasonic waveform digitized by the AD converting mechanism; an evaluating mechanism that extracts a variation of a nonlinear ultrasonic component from a frequency component of the digital ultrasonic wave obtained by the frequency analysis, compares the variation with defect data information in a defect information database, identifies a physical quantity of defect information of the object to be tested, and evaluates a defect in the object to be tested; and a control mechanism that partly or entirely controls a measurement system.

Ultrasonic test equipment and evaluation method thereof

A welding inspection method has steps of: generating transmission laser light for generating an ultrasonic wave and transmitting the transmission laser light to an object to be inspected during or after welding operation for irradiation; generating reception laser light for detecting an ultrasonic wave and transmitting the reception laser light to the object to be inspected for irradiation; collecting laser light scattered and reflected at surface of the object to be inspected; performing interference measurement of the laser light and obtaining an ultrasonic signal; and analyzing the ultrasonic signal obtained by the interference measurement. At least one of the transmission laser light generated in the transmission laser light irradiation step and the reception laser light generated in the reception laser light irradiation step is irradiated onto a welded metal part or a groove side surface.

Welding inspection method and apparatus thereof

A three-dimensional imaging unit includes a plurality of image pickup devices that image an image and a rotation drive device which rotates the image pickup devices and adjusts optical axes such that reflections of an object to be measured in a space to be measured have a predetermined amount of overlap. An association calculating unit calculates position association information of pixels when a required measurement point is mapped onto a plurality of images. A three-dimensional shape calculating unit calculates a three-dimensional shape of the object to be measured using the position association information and rotational information of the rotation drive device. A three-dimensional shape estimation calculating unit estimates, from the three-dimensional shape, a three-dimensional shape of a region of the object to be measured where the three-dimensional shape is not obtained. A three-dimensional measurement coordinates calculating unit calculates, from an estimation result, three-dimensional coordinates of two distance measurement points designated on the object to be measured. A distance calculating unit calculates a distance between the two points using the three-dimensional coordinates.

Three-dimensional distance measurement apparatus and method therefor

The present invention includes a camera which takes an image of a camera or an inspection target; a device which estimates the movement of the inspection target; a device which generates a high resolution image having a higher resolution than the pixel resolution of a video image taken by the camera from the video image taken by the camera; a device which evaluates the quality of the high resolution image generated by the generation device; and a device which presents an inspector who visually inspects the inspection target with the high resolution image together with the quality evaluation result of the high resolution image. The present invention can improve the reliability of inspection by use of the high resolution image as well as can reduce the inspection time, and further can guarantee the reliability of the inspection using a high resolution image.

Visual inspection apparatus and visual inspection method

A laser maintenance apparatus including a laser irradiation device which includes a first optical element for irradiating detection laser light on a test object to detect an ultrasonic wave; a second optical element for irradiating generation laser light on a test object so as to excite the ultrasonic wave; and an optical system container for containing the first and second optical element. The reflection direction of the first optical element and the reflection direction of the second optical element are arranged at an angle along the circumferential direction of the test object. The light reflected by the first optical element is irradiated at a position different than light reflected by the second optical element, and the laser irradiation positions of the light reflected by the first and second optical elements are different in the axial direction and the circumferential direction of the test object.

Laser-based maintenance apparatus using ultrasonic wave detection for flaw analysis and repair

Growing community of inventors

Yokohama, Japan

Makoto Ochiai