Abstract: Bubble jet recording is performed using a recording head with an orifice for projecting liquid. A liquid path with a plurality of electrothermal transducers is in fluid communication with the orifice. The transducers are selectively driven to change the amount of liquid ejected from the orifice.

Abstract: A recording device, comprising a probe electrode, a recording medium having electric memory effect and a writing voltage applying unit for applying voltage onto the recording medium from the probe electrode, and a reproducing device comprising a probe electrode, a recording medium exhibiting electric memory effect or a recording medium recorded by energy irradiation, a voltage applying unit for applying voltage not exceeding the threshold value voltage giving rise to electric memory effect onto the recording medium from the probe electrode and a reading unit for reading the change in current quantity passing through the recording medium.

Abstract: A recording apparatus comprises an inlet for accepting a liquid to be delivered to an outlet orifice through a liquid flow path. Liquid is supplied to the inlet for flow through the liquid flow path to a heating element, which heats liquid in the liquid flow path. Heating is sufficient to cause a change of state of the liquid (that is, to generate a bubble) and produce a force acting on the liquid which overcomes the surface tension of liquid at the orifice and thereby projects a droplet of liquid from the orifice. The temperature of the heating element is raised at each actuation to a temperature above the maximum temperature at which the liquid in the liquid flow path is subjected only to nucleate boiling so as to promote substantially instantaneous transfer of heat to the liquid proximate to the heating element and to retard the transfer of heat from the heating element to liquid at other locations in the liquid flow path.

Abstract: In a semiconductor device comprising a wiring to be connected to the source region or the drain region of a thin film transistor, at least a portion of the wiring comprising a wiring part having the same cross-sectional structure as said source region or said drain region, and said wiring part being formed continuously with said source region or said drain region simultaneously with the respective end portions of said wiring portions, said source region and said drain region formed in such a manner that the edge thereof is set back from the end of the semiconductor layer constituting the thin film transistor.

Abstract: A switching device is characterized by having periodical layer structure of an organic insulator between a pair of electrodes and having memorizability with respect to switching characteristic. The layer structure is formed of an amphiphilic compound according to the LB method.

Abstract: A recording apparatus for recording an image sensed by a photosensor comprises an inlet for accepting a liquid to be delivered to an outlet orifice through a liquid flow path. Liquid is supplied to the inlet for flow through the liquid flow path to a heating element, which heats liquid in the liquid flow path in response to signals received by the photosensor. Heating is sufficient to cause a change of state of the liquid (that is, to generate a bubble) and produce a force acting on the liquid which overcomes the surface tension of liquid at the orifice and thereby projects a droplet of liquid from the orifice.

Abstract: Liquid droplets are formed by instantaneous state change by thermal energy of a liquid filled in a thermal chamber, said droplets being deposited onto a recording member to achieve recording.

Abstract: An optical recording medium is provided which comprises a diacetylene derivative compound and at least one compound selected from the group consisting of azulenium salt compounds, pyrylium dyes, diene compounds, croconic methines, and polymethine compounds. An optical recording method is also provided which comprises a step of writing by irradiating with a radiation ray corresponding to a recording information an optical recording medium comprising a polydiacetylene derivative compound and a compound selected from the above-mentioned group.

Abstract: A semiconductor element comprises its main part constituted of a polycrystalline silicon semiconductor layer containing 0.01 to 1 atomic % of fluorine atoms.

Abstract: An image forming device is provided which comprises an image forming layer containing molecules of an organic compound capable of phase transition, and functional molecules such as those of a photochromic compound. An image forming process is also provided which employs the above-mentioned device.

Abstract: An image forming medium is provided which has an image forming layer comprising a monomolecular film of a diacetylene derivative compound or its built-up film and a radiation absorbing layer. The diacetylene derivative compound may be polymeric. An image forming device employing the image forming medium is also provided.

Abstract: A film forming device includes an optical device which has a light source, and a first optical system for projecting light beams split by a light splitting device. The light splitting device and the optical system steadily maintain the intensity center of the light beam projected onto a detecting surface of a light detector at an invariable position without positional fluctuation independently of fluctuation of an emitting angle to a thin film of the light source.

Abstract: An optical recording device and an information memorizing device utilizing the same are provided. The optical recording device comprises an A-layer comprising a chromogenic compound which is usually colorless or pale colored, a B-layer comprising an auxochromic compound capable of making said chromogenic compound form color through contact with said chromogenic compound, and a light-absorbing layer, at least one of the three layers being constituted of a monomolecular film or a built-up film thereof.

Abstract: A recording method is provided which comprises irradiating a recording medium having a recording layer containing a diacetylene derivative compound with a laser beam having a wavelength of 420 to 800 nm according to an input information to allow irradiated portions of the recording medium to cause a color change and thereby to conduct recording. A recording medium for the recording method is also provided.

Abstract: An optical recording-reproducing method comprising the step of irradiating a radiation for polymerization on an optical recording medium having a recording layer containing at least one selected from the group consisting of azulenium salt compounds, pyrylium dyes, diene compounds, croconic methine dyes and polymethine compounds (hereinafter called the group B) and a diacetylene derivative compound; the step of irradiating a radiation corresponding to a recording information to thereby change the color at the irradiated portion of the recording layer; and the step of reading the recorded information by irradiating a reading light with a shorter wavelength than said radiation on said recording layer. Also, an optical recording-reproducing device utilizes the above-mentioned method.

Abstract: A semiconductor device comprises a semiconductor layer of a polycrystalline silicon thin film containing not more than 3 atomic % hydrogen atoms and having a surface unevenness of not more than 800 .ANG. at its maximum. It may also have an etching rate of 20 .ANG./sec. when etched with a mixture of HF, HNO.sub.3 and glacial acetic acid (1:3:6).

Abstract: An optical recording method is provided which comprises a step of irradiating light corresponding to recording information on the optical recording medium having a recording layer containing at least one selected from the group consisting of azulenium salt compounds, pyrylium dyes, diene compounds, croconic methine dyes or polymethine compounds and a diacetylene derivative compound to thereby form a pit on said recording layer.

Abstract: A bubble jet recording apparatus comprises an inlet for accepting a liquid to be delivered to an outlet orifice through a liquid flow path. Liquid is supplied to the inlet for flow through the liquid flow path to a heating element, which heats liquid in the liquid flow path in response to recording signals. Heating is sufficient to cause a change of state of the liquid (that is, to generate a bubble) and produce a force acting on the liquid which overcomes the surface tension of liquid at the orifice and thereby projects a droplet of liquid from the orifice. The temperature of the heating element is raised at each actuation to a temperature above the maximum temperature at which the liquid is heated so as to promote substantially instantaneous transfer of heat to the liquid proximate to the heating element and to retard the transfer of heat from the heating element to liquid at other locations in the liquid floor path.

Abstract: A display apparatus comprises a first substrate provided with a thin film transistor array as a driving switching element and a second substrate provided with another electrode, and produces a display by electro-optical change generated between these substrates. Visibility of the display is improved in such a way that rays of light incident on the display apparatus are converted into diffusion light. Photoconductive material, in particular amorphous silicon, can be used by covering a semiconductive portions of the thin film transistor array of the display apparatus with an intercepting member. In a display apparatus using a thin film transistor array as a driving switching element, a conductive surface electrically insulated from gate lines on a substrate on which the gate lines for the thin film transistor array are formed, such conductive surface acts as a counter electrode of capacitors for storing charge.

Abstract: A display apparatus comprises a first substrate provided with a thin film transistor array as a driving switching element and a second substrate provided with another electrode, and produces a display by electro-optical change generated between these substrates. Visibility of the display is improved in such a way that rays of light incident on the display apparatus are converted into diffusion light. Photoconductive material, in particular amorphous silicon, can be used by covering semiconductive portions of the thin film transistor array of the display apparatus with an intercepting member. In a display apparatus using a thin film transistor array as a driving switching element, a conductive surface electrically insulated from gate lines on a substrate on where the gate lines for the thin film transistor array are formed, such conductive surface acts as a counter electrode of capacitors for storing charge.