Honda Giken Kogyo Kabushiki Kaisha

Other

Kabushiki Kaisha Toshiba

Adv Antest Corporation

Matsushita Electric Industrial Co., Ltd.

Minoru Kobayashi

Makoto Suzuki

Toshiaki Nagasawa

Shigeo Kobayashi

Makoto Aoki

Shoji Koike

Koromo Shirota

Seiji Yamamoto

Masato Okamura

Kenji Yamazaki

Hideo Takahashi

Osamu Shibasaki

Nobuaki Ozawa

Shigeki Koizumi

Ryutaro Yoshino

Shuji Seki

Jun Koizumi

Ichiro Inami

Toyoaki Miyazaki

Tetsuji Kaneko

Yutaka Uruma

Hidenori Koga

Yukio Hemmi

Shinichiro Kuroe

Fumihiko Ishibashi

Takao Baba

Toru Saitoh

Koichiro Chaen

The present invention provides an operation method of a plant which has a low-pressure feed water heater, a deaerator and a high-pressure feed water heater sequentially arranged in a feed water pipe reaching a steam generator from a condenser, and leads high-temperature feed water to the steam generator, wherein an oxidant is injected onto a surface of a structural material from an oxidant injection line in order to form a film that suppresses an elution of an element constituting the structural material such as the feed water pipe, the low-pressure feed water heater, the deaerator and the high-pressure feed water heater, which come in contact with the high-temperature feed water, and a corrosion suppression substance is further introduced from a corrosion suppression substance introduction line in order to deposit the corrosion suppression substance on a surface of the structural material in which corrosion accelerated by a flow of the feed water occurs.

Plant operation method and plant operation system

Migration of radioactive materials from a pressure vessel to a steam system in a nuclear power plant is suppressed by using a dryer () provided with corrugated plates () having surfaces coated with an inorganic ion-exchange material stable under a condition in which high-temperature water exist, such as TiO.

Nuclear power plant system and method of operating the same

An ink-jet textile printing system includes an ink-jet printing mechanism capable of textile printing on a printing object formed by a cloth product such as a T-shirt, a printing tray for holding a printing target range of the printing object flat, and conveying the printing object while positioning the printing target range with respect to the ink-jet printing mechanism, and a printing object formed by a cloth product such as a T-shirt having a partial pre-process portion obtained by partially pre-processing only the printing target range.

Ink-jet textile printing system, ink-jet textile printing apparatus, and ink-jet textile printing method

A navigation system including a navigation roadway, which is simple in construction and thus cost-effective, ensures a vehicle to navigate even where a roadway curves, branches out, or merges with another. This navigation system comprises a mark-tracking navigator and a map-referring navigator. The mark-tracking navigator navigates the vehicle along a navigation-guiding mark on the roadway by detecting the navigation-guiding mark, and the map-referring navigator navigates the vehicle along a predetermined track on a route map of data by referring to the position of the vehicle which is detected by position-detecting means. The system selects either the mark-tracking navigator or the map-referring navigator to navigate the vehicle in correspondence with the condition of the roadway. The sections where the roadway extends straight or curves gradually are provided with the navigation-guiding mark, and the sections where the roadway branches out or merges with another or curves sharply are not provided with the navigation-guiding mark.

Navigation roadway and navigation system

A delay time stabilization circuit is used in a timing generator which provides a reference timing of a semiconductor IC test system. The delay time stabilization circuit includes a delay control circuit, a period generator which generates period signals necessary for DUT (device under test) testing, a loop forming switch, and a period counter 31 for counting the period in a loop circuit. The calibration process starts by setting the loop forming switch. A start pulse generation circuit generates n pulses when receiving one trigger pulse which pass through a CMOS variable delay circuit and the loop circuit to a 1/n divider circuit. The n pulses are divided by n to produce a signal pulse which triggers the start pulse generation circuit. In the DUT testing, the period generator 11 generates the period signal necessary for the testing which is the same repetition rate as generated by the start pulse generation circuit, resulting in the same power dissipation in the calibration process and the DUT testing.

Delay time stabilization circuit

An audio playback system wherein upon selection of a music genre there is made an automatic setting to an optimum frequency characteristic and at the same time a constant sound volume characteristic is obtained irrespective of the selected music genre. The audio playback system includes a memory which stores optimum equalizer characteristics and sound volume characteristics for plural music genre respectively, a mode setting device for setting a mode for each music genre by operation from the exterior, an equalizer characteristic selector for selecting a corresponding equalizer characteristic from the memory on the basis of the mode set by the mode setting device, and a sound volume characteristic selector for selecting a corresponding sound volume characteristic from the memory on the basis of the mode set by the mode setting device, wherein a sound is reproduced in accordance with the equalizer characteristic and sound volume characteristic selected by the equalizer characteristic selector and the sound volume characteristic selector, respectively.

Audio playback system

A rate generator circuit for generating test signals whose timings vary in a pulse by pulse basis for testing semiconductor devices includes: a reference clock to determine a basic operational timing of the semiconductor test system; a pattern generator which stores rate data indicating timings of each pulse for the test signals for reading out a plurality of the rate data in parallel in synchronism with a system clock; a temporary storage for temporary storing and transferring the plurality of rate data; a timing generator for generating a plurality of sets of a timing pulse and timing data, each of the rate data being a combination of a coarse timing and a fine timing, at least one set of the timing pulse and the timing data is produced based on a sum of all of the plurality of the rate data and a fine timing of a previous cycle of the system clock, and each of the other sets of the timing pulse and the timing data is produced based on corresponding one of the plurality of the rate data and the fine timing of the previous cycle; and a waveform generator for adding a delay time indicated by the timing data to corresponding one of the timing pulse and converting the plurality of the timing pulses provided with the delay times into a series signal.

Rate generator circuit for semiconductor test system

A control system for controlling operations of a plurality of controlled devices each capable of positioning a plurality of logical axes included therein to perform operations such as welding or assembling workpieces, wherein a parallel control of the respective devices is performed by a multitask processor, control of operations such as welding which require a real-time control in its nature is performed by a real-time processor, and a communication memory is provided between the both processors for transferring therebetween required commands and data for the positioning control or the operations control.

Multitask control system

A legged mobile robot control system for enabling the mobile robot, more particularly a biped walking robot to walk stably even over terrain with unexpected irregularities. The robot's motion is approximated by a mathematical model and a mathematical control is conducted, while controlling the robot's attitude on the basis of a walking pattern established in advance, without need to use a high-speed on board computer for non-linearlity compensation. In another embodiment made up of a more simple arrangement, when the foot angle deviates from that on flat terrain owing to the foot stepping on a bump, the foot angle is estimated and joints are driven such that the robot's center of gravity is restored in a predetermined target trajectory. In still another embodiment, the robot body's inclination angle and/or angular velocity is determined and the hip joints connecting the body with two legs are driven to restore a predetermined stable attitude.

Control system for legged mobile robot

A servomotor control system for multi-axes in which a single servo-amplifier can operate m rotational speed control loops and m current control loops as well for m servomotors simultaneously, where m is a predetermined integer greater than unity, while a single positioning controller with a signal teaching box can handle n servo-amplifiers in parallel, where n is a predetermined integer greater than unity, thereby mn servomotors in total can be controlled by a single system. In the system of the invention, the multiple servomotors can be divided into groups each including up to six servomotors to be controlled as a group and independently from servomotors belonging to other groups. The system of the invention can easily be expanded by a minimum addition of servo-amplifiers and/or positioning controllers to include servomotors more than mn, in which addition of one or more teaching boxes is possible whenever they become necessary.

Servomotor control system for multi-axes

A top drying nozzle device for a vehicle washing apparatus has a link mechanism for supporting a top nozzle. The link mechanism has a pantagraph mechanism and two parallel link mechanisms so that the top nozzle can be moved vertically in a forward position of two side nozzles.

Top drying nozzle device for vehicle washing apparatus

Growing community of inventors

Yokohama, Japan

Minoru Kobayashi