Kabushiki Kaisha Toshiba

Tokyo Shibaura Denki Kabushiki Kaisha

Masami Sugiuchi

Hideyuki Nishizawa

Satoshi Takayama

Hirohisa Miyamoto

Katsuyuki Naito

Masahiro Hosoya

Akiko Hirao

Masataka Miyamura

Sawako Fujioka

Atsuo Imai

Tetsuro Itakura

Koichi Mizushima

Hitoshi Nagato

Chiaki Tanuma

Yasunobu Onishi

Shuzo Hirahara

Akira Miura

Hideki Nukada

Isao Amemiya

Shigeru Matake

Shiroh Saitoh

Yoichi Tokai

Tutomu Saito

Mamoru Izumi

Shunsuke Hattori

Hisako Tanaka

Toshio Nakayama

Kumi Okuwada

Tetsuo Okuyama

Fumihiko Murakami

Tatsuo Nomaki

Masayoshi Okamoto

Akiko Watanabe

Noriko Y Kudo

Atsuko Nakamura

Seizaburou Shimizu

An ink-jet recording apparatus records an image onto a recording medium by flying an ink-droplet from an ink surface by a pressure of an ultrasonic beam. The apparatus including an ultrasonic generating element array having a plurality of ultrasonic elements arranged in an array for emitting ultrasonic beams, a driving device for applying a plurality of pulses having different phases from each other, and a converging device for converging the ultrasonic beams by interfering the ultrasonic beams with each other. The generating elements are simultaneously driven and sequentially shifted in an array direction, and the converging device converging the ultrasonic beams in a direction perpendicular to the array direction.

Ink-jet recording device having an ultrasonic generating element array

A reversible thermal recording medium comprises a composition containing a color former, a developer, a reversible material capable of reversibly changing the state of the composition by supplying heat energies with two different values, and, as required, a phase separation controller which permits changing the phase separation speed of the developer at temperatures in the vicinity of the melting point of the phase separation controller, at least 80% by weight of the reversible material being a sterol compound in which the carbon-to-carbon bond between 2- and 3-positions of the stroid skeleton is a single bond, the carbon-to-carbon bond between 3- and 4-positions of the steroid skeleton is a single bond, a hydroxyl group is attached to the carbon atom in at least the 3-position of the steroid skeleton, and a specified chemical structure is bonded at 16- and 17-positions of the stroid skeleton, and the phase separation controller being provided by a low molecular organic material, the maximum carbon chain length there of being at least 10.

Reversible thermal recording medium

A recording element which comprises a recording layer containing, a first charge-generating material adapted to generate a first electric charge by a supply of external energy, a first charge-transporting material for transporting the first electric charge, a charge-capturing material for capturing the first electric charge, and a material having an electro-optical effect, wherein a change in optical properties of the recording layer is caused only through an inner electric field to be generated by a delivery of electric charge between the first charge-generating material generating electric charge and the charge-capturing material capturing the electric charge.

Recording medium

Disclosed is a photoconductor comprises, a material containing fullerenes and their derivatives arranged in an amorphous structure.

Photoconductors and electrophotographic photoreceptors containing

A method for display on a display medium is disclosed which comprises a step of applying an electric field to a display medium provided with an image forming medium composed of a thermally fusible material and minute charging particles dispersed therein, a step of applying heat to the display medium until the thermally fusible material assumes a coefficient of viscosity enough for the minute charging particles to migrate by dint of an electric field, and a step of solidifying the image forming medium after formation of an image therein.

Display medium and method for display therewith

A thermal recording medium comprising a color former, a developer and a reversible material which can effect a reversible change in at lease a part of a composition system where thermal energies with two different values are supplied or where two different heat histories are provided, and a phase separation controller serves to change phase separation rate between the color former or the developer and the reversible material in the vicinity of its melting point, if necessary.

Thermal recording medium and recording method

An electrophotographic receptor includes a conductive support, and a photoconductive layer formed on the conductive support, wherein a minimum electric field strength required for a waveform, which indicates a change in photocurrent generated when a voltage is applied to and a light pulse is radiated on the photoconductive layer with respect to a time, to have a single peak and an upwardly projecting shape is 200 kV/cm or less. The photoconductive layer is constituted by a charge generating layer containing a charge generating substance and a charge transporting layer containing a charge transporting substance. The waveform characteristic of the photoconductive layer can be adjusted by the type and amount of the charge generating substance, the charge transporting substance, or a binder, and a method of manufacturing the charge transporting substance.

Electrophotographic receptor having excellent charging characteristic,

A semiconductor light-emitting element of a metal/organic film/semiconductor junction structure has a semiconductor layer, and an organic Langmuir-Blodgett thin film formed on the semiconductor layer. The thin film includes an electron donative organic monomolecular compound whose longest absorption peak wavelength in an electron transition spectrum falls within a range of 300 nm to 600 nm. A layer of metallic material is formed on the thin film.

Semiconductor light-emitting element

An electrochromic display device includes a transparent first electrode and a second electrode opposing said first electrode to be spaced apart therefrom. An electrochromic layer is formed in a space formed between the first and second electrodes so as to be in contact with the first electrode. The electrochromic layer is formed of certain naphthalene derivatives, certain tetracene derivatives or certain fulvalene derivatives. An ionic conductor layer is formed in the space so as to be in contact with the electrochromic layer.

Electrochromic display device

A solid-electrolyte cell has an cathodic active material layer which includes a charge-transfer complex and a polymeric compound in which the charge-transfer complex is dispersed. The charge-transfer complex contains a certain type of naphthalene or tetracene derivative as an electron donor and iodine as an electron acceptor. A anodic active material layer including a light metal is formed in contact with the cathodic active material layer. A solid-electrolyte layer is formed in situ at the interface between the cathodic active material layer and the anodic active material layer by the reaction between the iodine and the light metal.

Solid-electrolyte cell

Disclosed are organic photoconductive compositions for use in electrophotography, comprising a polymer containing as main units a naphthalene derivative and/or a naphthacene derivative; and an electron acceptor and/or a sensitizer.

Organic photoconductive compositions for use in electrophotography

Growing community of inventors

Yokohama, Japan

Masami Sugiuchi