Canon Kabushiki Kaisha

Asahi Kasei Kogyo Kabushiki Kaisha

Asahi Kasei Kabushiki Kaisha

Kunitoshi Aoki

Makoto Honda

Yukio Nagase

Tetsuya Atsumi

Tsutomu Katsumata

Tetsuro Dozono

Osamu Nagano

Jumpei Ashida

Satoru Komada

Hideo Midorikawa

Ken Someya

Shigeo Nakamura

The processing unit of the sensor includes a time counter and pixel counters. The number of lines is reduced by sharing output lines with the pixel counters and the time counter. In addition, readout time is reduced by transposing an output sequence of pixel count values and time count values across Bayer units depending on a state of saturation of a pixel.

Imaging sensor and imaging apparatus

In order to shorten an activation time while realizing high accuracy motor control, a motor control apparatus operable to control a motor is provided. The apparatus comprises: a first drive control unit configured to drive the motor by forced commutation control; a second drive control unit configured to drive the motor by vector control; and a control unit configured to control to drive the motor by one of the first drive control unit and the second drive control unit. A first control period which is a control period in which the first drive control unit controls the motor is shorter than a second control period which is a control period in which the second drive control unit controls the motor.

Motor control apparatus and method of controlling the same

There is provided with an apparatus. A measurement unit emits light to an image carrier conveying a toner image and measures an incident position of the light in a direction perpendicular to a surface of the image carrier by observing the emitted light. The measurement unit has an irradiation unit configured to emit the first light and the second light and an observation unit configured to observe the first light and the second light. The irradiation unit emits the first light and the second light at positions separate from each other in a direction perpendicular to a conveyance direction of the toner image, with irradiation directions of the first light and the second light being substantially orthogonal to the direction perpendicular to the conveyance direction of the toner image.

Apparatus and measurement method based on incident positions of emitted light

A device includes a laser source configured to irradiate a toner image on a bearing member with light, a base extracting unit configured to extract a base area of a reflection waveform of light reflected from the toner image irradiated by the laser source, and a toner adhesion computing unit configured to compute the amount of toner adhesion in the toner image in accordance with a change in position of the base area of the reflection waveform.

Toner adhesion measuring device, toner adhesion measuring method, and image forming apparatus

One aspect of the present invention provides an information processing apparatus for determining a height of a toner image formed on a carrier, the apparatus comprising: a control unit configured to control an amount of irradiation light based on whether laser light irradiated by an irradiation unit is irradiated onto the toner image; an acquisition unit configured to acquire an image obtained by capturing reflected light of the laser light irradiated by the irradiation unit; and a determination unit configured to determine the height of the toner image based on the acquired image.

Information processing apparatus, printing apparatus, and information processing method

An information processing apparatus capable of determining a height of a toner image formed on an image bearing member with high accuracy includes detecting a two-dimensional reflection image corresponding to a reflection image of a beam from the toner image formed on the image bearing member, identifying a representative position based on the detected two-dimensional reflection image, and determining the height of the toner image based on the identified representative position.

Information processing apparatus for determining a height of a toner image formed on an image bearing member, information processing method, and image forming apparatus

A toner amount measuring unit irradiates a toner image formed on an image carrying member with light, and an image capturing unit captures an image of a reflected waveform according to light reflected by the toner image. Then, an amount of applied toner is calculated based on the peak position or peak height of the reflected waveform in accordance with information associated with the density of the toner image to be formed.

Measuring apparatus, measuring method and image forming apparatus

An apparatus includes an irradiation unit configured to irradiate a light onto a toner image, a detection unit configured to detect reflected light from the toner image, and a deriving unit configured to derive a toner adhesion amount of the toner image, based on detection result by the detection unit in measurement range of integer multiple of screen pitch of the toner image.

Toner adhesion amount measuring apparatus, and toner adhesion amount measuring method

Disclosed is a process for producing acrylonitrile from propylene, or methacrylonitrile from isobutylene by ammoxidation using an improved catalyst composition comprising an oxide catalyst represented by the formula: Mo,Bi,Fe,Ni,Q,A,E,O,, wherein Q is a mixture of chromium and indium, A is at least one element selected from potassium, rubidium and cesium, E is at least one element selected from manganese magnesium, zinc, cerium, sodium and phosphorus, and m is a number of from 10 to 14, b is a number of from 0.1 to 3, f is a number of from 0.1 to 3, n is a number of from 4 to 10, q is a number of from 0.1 to 2, a is a number of from 0.01 to 0.5, e is a number of from 0 to 3, and x is a number determined by the valence requirements of the other elements present, and a silica carrier having the oxide catalyst supported thereon, wherein the silica carrier is present in an amount of from 40 to 60% by weight, based on the total weight of the oxide catalyst and the silica carrier. With the oxide catalyst composition of the present invention, the desired acrylonitrile or methacrylonitrile can be produced in high yield.

Process for producing acrylonitrile or methacrylonitrile

Ammoxidation catalyst composition

Disclosed is an ammoxidation catalyst composition for use in producing acrylonitrile from propylene, or methacrylonitrile from isobutene or tert-butanol, by ammoxidation of the propylene or of the isobutene or tert-butanol, comprising an oxide catalyst composition represented by the formula:

Ammoxidation catalyst composition, and process for producing

In the preparation of acrylonitrile or methacrylonitrile by ammoxidation of propylene or isobutylene with ammonia and molecular oxygen in the vapor phase in the presence of a catalyst comprising silica and supported thereon oxides of molybdenum, bismuth and iron, the yield of acrylonitrile or methacrylonitrile based on ammonia is improved without sacrificing the yield based on propylene or isobutylene by the use of a novel catalyst having, incorporated therein, 0.002 to 0.2 atom, based on 12 atoms of molybdenum, of an oxide of at least one element selected from the group consisting of palladium, platinum, osmium and iridium.

Process for the preparation of acrylonitrile or methacrylonitrile

A catalyst composition having a composition represented by the formula:

Catalyst composition

A process for the preparation of acrylonitrile by the ammoxidation reaction of propylene, characterized by using an oxide type catalyst which contains, as active ingredients, molybdenum, bismuth, iron and at least one element selected from potassium, rubidium and cesium in specifically limited proportions and which may further contain sodium and/or phosphorus. By the use of such a specific catalyst, the selectivity for the desired acrylonitrile is remarkably improved, and there can be attained high yield of the product. In the process of the present invention, the catalyst can maintain a high activity and a high selectivity for a long time, without undergoing attrition. The catalyst is well prevented from sublimation-escaping of the ingredient molybdenum therefrom.

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Tokyo, Japan

Kunitoshi Aoki