Oki Electric Industry Co., Ltd.

Nippon Kokan Kabushiki Kaisha

Jfe Engineering Corporation

Yoshiki Shibuya

Takashi Ushikubo

Mayumi Masui

Takeo Ando

Moritake Kato

Kengo Murai

Norio Inoue

A crude oil composition estimation method estimates a composition of crude oil for use in simulation of a material balance in an absorption and liquefaction system that absorbs vapors emitted from the crude oil with the crude oil. The crude oil composition estimation method includes: comparing a calculated concentration of a treated gas with a measured concentration of the treated gas; estimating, when the calculated concentration agrees with the measured concentration, that the concentration included in the crude oil is a correct crude oil composition; and repeating, when the calculated concentration does not agree with the measured concentration, a process of correcting the concentration included in the crude oil and then comparing the calculated concentration with the measured concentration, until the calculated concentration agrees with the measured concentration, and when they agree, estimating that the corrected concentration in the crude oil is a correct crude oil composition.

Crude oil composition estimation method, absorption process simulation method in absorption and liquefaction system, process simulation method in recovery system, and method of producing absorption and liquefaction system

An optical coupling module has an optical device and a fiber plate which propagates light that enters into the optical device or light that is emitted from the optical device. The optical device is fixed on a surface of a substrate of the optical coupling module. The fiber plate has multiple bundled optical fibers that are arranged in parallel with optical axes of the optical device.

Multi-channel optical coupling module

A method of arranging optical fibers and to an optical fiber arranging module. The method of arranging optical fibers includes inserting terminal portions of the optical fibers in a holding space which has an enough width to hold the optical fibers, reducing the width of the space so that the optical fibers are brought close, and reducing a height of the space up to length of an external diameter of the optical fiber so as to line up facets of the optical fibers. The optical fiber arranging module includes a first restraining means for restraining width of a holding space which holds terminal portions of the optical fibers, the width of the terminal portions of the optical fibers are brought close, and a second restraining means for restraining height of the holding space up to length of an external diameter of the optical fiber so as to line up facets of the optical fibers.

Method of arranging optical fibers and optical fibers arranging module

An optical read sensor includes a circuit board having light-emitting elements mounted thereon, a transparent cover on which an original to be read is placed, light-receiving elements, and a light-guide that guides the light reflected by the original to the light-receiving elements. The light-emitting elements emit light toward the original. The original reflects the light emitted from the light-emitting elements through the transparent cover. The light guide guides the light reflected by the original to the light-receiving elements.

Optical sensor for reading a pattern

In a photoelectric sensor, a photosensitive device is mounted on a substrate and outputs an electric signal corresponding to light incident thereto. A casing holds the substrate in a bore formed therein and includes a light guide portion formed of an optically transparent material for conducting incident light to the photosensitive device. A light emitting device is also mounted on the substrate for emitting light in response to a current input thereto. A seal member is molded to air-tightly seal the light emitting device and photosensitive device except for a light guide portion included in the light emitting device and a light guide portion included in the photosensitive device.

Photoelectric sensor having a light guide built-in

In an image forming apparatus, the passage of paper is detected by light and compact optical sensor apparatus including a plurality of light emitting devices, a plurality of optical sensor units, each of which includes an optical sensor disposed so as to receive the light from the light emitting device and an output circuit for selectively outputting a signal from the optical sensor, and a control unit connected to the optical sensor units through common cables. The output circuit of each optical sensor unit passes the sensor signal from the optical sensor of the unit to an output terminal or outputs the signal to one of the terminals of the unit, according to a selection signal generated at the control unit for exclusively designating the optical sensor units. Since each optical sensor unit outputs the sensor signal only when selected, all optical sensor units can use a common output cables, thereby reducing the weight and the size of the apparatus.

Object detecting device having multiple optical sensors with a common

A method for recovering hydrocarbon vapor wherein permeable mixed gases of high concentration hydrocarbon vapor and the residual mixed gases of low concentration hydrocarbon vapor are separated, through gas separation membrane, from initial mixed gases containing hydrocarbon vapor to absorb permeable mixed gases, and a method for recovering hydrocarbon vapor wherein initial mixed gases containing hydrocarbon vapor are brought into contact with liquid absorbent to recover hydrocarbon vapor, and gases of high concentration hydrocarbon vapor and gases of low concentration hydrocarbon vapor are separated, through gas separation membrane, from treated gases from which hydrocarbon vapor has been absorbed in the preceeding process.

Growing community of inventors

Tokyo, Japan

Yoshiki Shibuya