Mutoh Industries Ltd.

Hitachi, Ltd.

Hitachi Metals, Ltd.

Tohken Industries Co., Ltd.

Daikin Industries, Ltd.

Telenix Co., Ltd.

Proterial, Ltd.

Isamu Takahashi

Kinya Aota

Tadashi Fujieda

Hajime Murakami

Takahiko Kato

Hiroyuki Satake

Kenji Yamaga

Kousuke Kuwabara

Akihide Tanaka

Xudong Zhang

Naoya Okizaki

Tadashi Oshimi

Hiroshi Yoshikawa

Yasunori Hama

Shinya Kaneko

A welding work measurement system enables accurate measurement of a positional relation between respective parts. Therefore, a welding work measurement system includes a photodetection unit that detects light generated by a plurality of markers attached to a torch for welding a welding object or light reflected by the plurality of markers, a marker position acquisition unit that acquires marker position data that is three-dimensional coordinate data on the markers on the basis of the light detected by the photodetection unit, and a torch position acquisition unit that acquires torch position data that is three-dimensional coordinate data on the torch on the basis of the marker position data.

Welding work measurement system

A burner work measurement system configured to measure work using a burner is provided. The burner work measurement system includes one or more cameras configured to capture the work and a control unit configured to perform computing processing on images captured by the cameras, the control unit is configured to create work data obtained by calculating, based on the images captured by the cameras, at least one of a positional relation between a work object and the burner or flame, a positional relation between the work object and a brazing filler metal, and a positional relation between the burner or the flame and the brazing filler metal.

Work measurement system, education system, and quality control system

An alloy structure has an arbitrary shape dimension which has high uniformity in the distribution of the element composition. The alloy structure contains Fe and at least four elements, which are selected from the group consisting of elements from atomic number 13 to atomic number 79 included in Group 3 to Group 16 of the periodic table of the elements and have a ratio of the atomic radius to an Fe atom of 0.83 or more but 1.17 or less, each of Fe and the four elements is contained in an atomic concentration range of 5 at % or more but 30 at % or less, a difference in atomic concentration between at least four elements among the at least four elements and Fe is in a range of less than 3 at %, and the alloy structure has, a column crystal in which the at least four elements and Fe are solid-dissolved.

Alloy structure and method for producing alloy structure

An alloy structure which has high uniformity in the distribution of the element composition and the mechanical strength and excellent high-temperature strength and corrosion resistance, contains Fe and at least four elements, which are selected from the group consisting of elements from atomic number 13 to atomic number 79, included in Group 3 to Group 16 of the periodic table of the elements, and have a ratio of the atomic radius to an Fe atom of 0.83 or more but 1.17 or less, each of the elements in an atomic concentration range of 5 at % or more but 30 at % or less, a difference in atomic concentration among the at least four elements and Fe is in a range of less than 3 at %, and the alloy structure has, as a main crystal, a column crystal in which the at least four elements and Fe are solid-dissolved.

A method of testing if the wiring or state of a TFT and LCD is abnormal includes the following steps: In a first operation, a TFT is turned on for a given time period to charge the cell capacitor connected to an LCD through the data line thereof. Next, the TFT is turned off, maintaining the charged condition. Then, the TFT is turned on again for a given time period T to release the stored electric charge through the source, drain and a grounded resistor. Changes with time in the output of source current (i.sub.1) or voltage (V.sub.1) induced by the discharge are input into a computer. In a second operation, the TFT is turned on for a given time period without charging the cell capacitor through the data line. After turning off the TFT for the same time as the first operation, the TFT is turned on again for a given time period to release the stored charge through the source, drain and grounded resistor. Then, changes with time in the output of source current i.sub.2 or source voltage V.sub.2 induced by discharge are input into the computer. In a third operation, the computer calculates the integration: ##EQU1## The computer judges whether the TFT-LCD is properly wired or the state of the TFT and LCD is normal by checking whether the calculation is smaller than a reference value of V.sub.s C.sub.so (R.sub.on +R.sub.g) or I.sub.s C.sub.so (R.sub.on +R.sub.g).

Method for testing the wiring or state of a liquid crystal display and

A method of inspecting cells of liquid crystal displays comprising the first step in which the empty TFTs in the active color LCD arrays are energized to charge the auxiliary pixel capacitor corresponding to the individual electrodes, the charged condition is maintained by deenergizing the TFT's, the electric charge is released through the source and drain of the TFTs and the resistor connected to the ground side thereof by re-energizing the TFTs, and the amount of the discharge is measured and the second step in which the same energizing, deenergizing, re-energizing, charging, discharging and measurement as done in the first step are made on the TFTs filled with a liquid crystal in the active color LCD arrays, the difference between the amounts of discharge measured in the first and second steps is integrated or the time constant of the amount of discharge measured in the first step is deducted from the time constant of the amount of discharge measured in the second step.

Method of inspecting cells of liquid crystal display

In case a long size sheet which is sandwiched by a drive roller and a pressure roller and its tip portion is suspended downwardly with its dead weight from the sheet support surface is cut off in a straight line in a crossing direction with a cutter pen of a plotter capable of shifting the sheet in a crossing direction, firstly, the sheet is cut off in a crossing direction with the cutter pen leaving a predetermined region at the center portion of the sheet. Next, a half-cut or perforation work is applied to the predetermined region at the center portion, and then, the drive roller is rotated in the positive or reverse direction, and the sheet transfers back and forth along its longitudinal direction, and the region of the sheet where the drawing has been performed is shaken off from the other portion of the sheet by the transfer, and thus, the cutting operation of the sheet is completed.

Method of cutting sheet for plotter

A method and apparatus for testing TFT-LCD's turns on a TFT in an active color LCD using TFT's, charges a cell capacitor connected to the LCD through the data line, keeps the capacitor charged after turning off the TFT, discharges the capacitor through a resistor connected to the grounding side through the source and drain of the TFT, and checks the function of the TFT-LCD and the connection of the elements contained therein based on the waveform of a current or discharge induced by the discharge.

Method and apparatus for testing TFT-LCD

A penstocker for an automatic drafting machine in which a shutter 15 is slidably mounted on a peripheral wall 13b of the penstocker's main body 10 such that a desired one or more slits 20, 21 and 22, formed on the peripheral wall 13b, are shielded thereby forming a predetermined pattern indicative of a presence or absence of the penstocker main body, a type of pen held by the penstocker main body and an origin of the penstocker main body.

Penstocker of automatic drafting machine

An automatic lead feeding apparatus is used in an automatic drafting machine adapted to exchange pencil holders between a line drawing head and a writing instrument stocker. The automatic lead feeding apparatus has a unit holder moving in a direction of approach and separation from the writing instrument stocker to take a writing instrument or pencil holder removably arranged on the stocker. In consequence, the pencil holder is exchanged between the writing instrument holder and a writing instrument holder of the stocker. A lead feeding reservoir-stocker has a plurality of lead reservoirs containing plural leads. The lead feeding reservoir-stocker is arranged above the travelling path of the writing instrument holder. Lead is fed one by one from the reservoir-stocker by a shutter placed under the stocker and the lead is pushed in the pencil holder by a predetermined distance by a lead pusher. The lead feeding reservoir-stocker and writing instrument stocker are able to be removed from the base of the automatic lead feeding apparatus.

Automatic lead feeding apparatus of automatic drafting machine

A lead automatic supply device for an X-Y plotter has a writing implement stocker connected to a first rotary drive device, and a lead supply stocker rotatably disposed above the writing implement stocker. The lead supply stocker is connected to a second rotary drive device, and a circular line passing through lead storage containers provided in the lead supply stocker and a circular line passing through writing implements retained on the writing implement holding portion of the writing implement stocker lie in the same cylindrical plane. A lead fall hole is provided in the bottom portion of each lead storage container, and an opening/closing mechanism is provided at the lower part of the lead fall hole for opening and closing the lead fall hole. An opening/closing control for controlling the opening/closing mechanism and a lead push down mechanism for pushing the lead downward from the mechanism are also provided. The writing implement stocker can rotatably shift an empty writing implement to a lead supply position, and the lead supply stocker rotates a desired lead storage container to a position immediately above the empty writing implement. In this condition, the lead in the lead storage container is caused to fall downward through the lead fall hole toward the writing implement without a lead located below the lead fall hole by opening the opening/closing mechanism, and the lead is pushed into the writing implement by the lead push-down mechanism.

Growing community of inventors

Tokyo, Japan

Isamu Takahashi