Ricoh Company, Ltd.

Wedg Co., Ltd.

Shinko Electric Company, Ltd.

Amano Corporation

Satoshi Arai

Tadafumi Tatewaki

Yoshihiko Hotta

Hideo Sakurai

Jun Maruyama

Naoki Yoshida

Shinya Kawahara

Nobuyoshi Sugiyama

Yu Tsuchimura

Tomomi Ishimi

Kyoji Tsutsui

Takeshi Shibuya

Hiromi Furuya

Shin Yamamoto

Atsushi Kutami

Ichiro Sawamura

Hiroki Kuboyama

Kazuyuki Uetake

Takashi Kitamura

Yasuroh Yokota

Takashi Ohkuma

Takanobu Mimura

Eiji Nagayama

Osamu Shishido

Shigeyuki Kawamura

Satoru Sampei

Takayuki Toba

Yutaka Matsuoka

Yuugo Tomaru

Naoki c/o Wedg Co Ltd Yoshida

A recording method including: emitting laser light from an optical fiber array to record an image formed of writing units with moving a recording target and the optical fiber array relatively using a recording device including a plurality of laser light-emitting elements and an emitting unit including the optical fiber array, in which a plurality of optical fibers configured to guide laser light emitted from the laser light-emitting elements are aligned, wherein a maximum length of the writing unit along a sub-scanning direction is controlled with set values of: a duty ratio and a cycle of a pulse signal input to the emitting unit; recording energy applied to the recording target; and a spot diameter of the laser light, to record with overlapping an edge of the writing unit with an edge of the adjacent writing unit in the sub-scanning direction.

Recording method and recording device

A reversible thermosensitive recording medium including: a support; a reversible thermosensitive recording layer on the support; and a protective layer on the reversible thermosensitive recording layer, wherein the reversible thermosensitive recording layer contains an electron-donating color-forming compound and an electron-accepting compound, wherein the protective layer contains a polyester acrylate resin, and wherein the protective layer has a glass transition temperature of 230&#xb0; C. or higher and has an elongation of 10% or higher.

Reversible thermosensitive recording medium and reversible thermosensitive recording member

The present invention provides a thermoreversible recording medium which includes a support, a thermoreversible recording layer which comprises a thermoreversible composition containing an electron-donating color-forming compound and an electron-accepting compound, a metal compound-containing layer which includes a resin, an organic metal compound, and an inorganic layer compound, in which the resin is at least one selected from the group consisting of polyvinyl alcohol polymers, and ethylene-vinyl alcohol copolymers, and the organic metal compound is at least one selected from the group consisting of an organic titanium compound and an organic zirconium compound, and a protective layer which protects the metal compound-containing layer, wherein the support, the thermoreversible recording layer, the metal compound-containing layer and the protective layer are laminated in this order.

Thermoreversible recording medium, and thermoreversible recording member

It is an object of the present invention to provide a method for image processing and an image processing apparatus which are capable of performing repetitive forming and erasing of high-contrast images at high speeds by forming high-density, uniform images and uniformly erasing images in a short period of time, and in addition, suppressing the degradation of the thermoreversible recording medium due to repetitive forming and erasing is possible. The method for image processing of the present invention contains at least any one of image forming step wherein an image is formed on a thermoreversible recording medium in which any one of transparency and color tone is changed reversibly depending on temperatures by heating due to laser beam irradiation, and image erasing step wherein an image formed on the thermoreversible recording medium is erased by heating due to laser beam irradiation to the thermoreversible recording medium, and a light irradiation intensity of the center is equal to or less than the light irradiation intensity of the periphery in the light intensity distribution of cross-section in a direction approximately perpendicular to the traveling direction of the laser beam irradiated at least in any one of the image forming step and the image erasing step.

Method for image processing and image processing apparatus

A reversible thermosensitive recording material including a support, a reversible thermosensitive recording layer, and a gas barrier layer, the reversible thermosensitive recording layer and gas barrier layer being laid over the support, wherein the reversible thermosensitive recording layer is formed of a reversible thermosensitive composition containing a mixture of an electron-accepting compound and an electron-donating color-forming compound whose color-developed state varies depending upon at least one of a heating temperature and a cooling rate after heating, and wherein the gas barrier layer contains an inorganic layered compound and a gas barrier resin which is at least one selected from the group consisting of polyvinyl alcohol polymers and ethylene-vinyl alcohol copolymers.

Reversible thermosensitive recording material, IC card, magnetic card and method for producing reversible thermosensitive recording material

A heating device capable of evenly heating a thermal recording medium without increasing the cost of the device is disclosed. The heating device evenly heats the recording surface of a thermally-reversible recording card by conducting the heat energy transferred from a heat generating member by way of a heating member, made of aluminum having high heat conductivity and high heat capacity characteristics. By this feature, it becomes possible to accurately erase the information recorded on the recording card and to use an inexpensive heat generating member as the heat generating member.

Heating device, erasing device, information recording and erasing device, and transfer device

A disclosed information recording apparatus includes an erasing unit configured to erase prerecorded information on recording media capable of being colored and decolored by heat; a recording unit configured to record information on the recording media from which the prerecorded information is erased; and a control unit configured, when a recording request is received, to cause the recording unit to start recording information on a first one of the recording media and to cause the erasing unit to start erasing prerecorded information on a second one of the recording media.

Information recording apparatus and information recording method

To provide a reversible thermosensitive recording medium comprising a support, a thermosensitive recording layer formed on the support, and a protective layer formed on the thermosensitive recording layer, wherein the thermosensitive recording layer contains an electron donative coloring compound and an electron acceptive compound, and the color tone reversibly changes depending on the temperature, and the protective layer contains a polymer of a composition containing two kinds of acrylate compounds selected from an acrylate compound having a pentaerythritol group and an acrylate compound having a dipentaerythritol group.

Reversible thermosensitive recording medium, as well as reversible thermosensitive recording label, reversible thermosensitive recording member, image processing apparatus and image processing method

A heating unit is disclosed that heats a heat-sensitive medium. The heating unit includes a heat generating body that converts electric energy into heat energy; a fixed member to which the heat generating body is fixed; and a holding member that directly holds the fixed member while contacting at least a part of the fixed member.

Heating unit, erasing device, and information erasing and recording apparatus

A reversible thermosensitive recording medium including a substrate, and a thermosensitive layer including an electron donating coloring compound, an electron accepting compound, and a phenol anti-oxidation agent containing one or more sulfur atoms having an alkyl group on one side. In addition, the thermosensitive layer reversibly changes its color tone depending on temperature to reversibly record and erase an image thereon.

Reversible thermosensitive recording medium, reversible thermosensitive recording label, reversible thermosensitive recording device, image processing apparatus, and image processing method

The object of the present invention is to provide a thermoreversible recording medium which possesses not only such an excellent property that the electrostatic charge on the thermoreversible recording medium can be prevented and the curling of the thermoreversible recording medium caused by repeating heating for the printing and erasing of the thermoreversible recording medium can be also prevented, but also an excellent conveyability which is not affected by repeating the use of the thermoreversible recording medium and by an using condition thereof. For attaining the object, the present invention provides a thermoreversible recording medium comprising a support, a thermosensitive layer disposed on the support which reversibly changes the color depending on the temperature, a protective layer disposed on the thermosensitive layer, and a back layer disposed on a surface of the support which is opposite to another surface of the support on which the thermosensitive layer is disposed, wherein the back layer comprises a needle-like conductive filler.

Thermoreversible recording medium, thermoreversible recording label and thermoreversible recording member, and, image processing apparatus and image processing method

A reversible thermosensitive recording medium comprising an concealing layer provided between a reversible thermosensitive recording layer which is reversibly changed in its color by heat and a photo-thermal conversion layer which absorbs light with generating heat, wherein the concealing layer has an optical characteristic that the ratio of a light absorptivity of light having 555 nm wavelength, in comparison with a light absorptivity of laser light wavelength, is 80% or less. This reversible thermosensitive recording medium has a concealing layer to conceal the color of the photo-thermal conversion layer, thereby the visibility and the contrast of the obtained images are significantly improved, further more, durability in repeated used is also significantly improved.

Reversible thermosensitive recording medium, label, and image forming and erasing method using the same

A reversible thermosensitive recording medium including a substrate; a reversible thermosensitive recording layer on the substrate, which includes an electron donating coloring compound and an electron accepting compound, wherein the recording layer achieves a colored state when heated at a temperature not lower than an image forming temperature and then cooled at a first cooling speed, and the recording layer in the colored state achieves a non-colored state when heated at a temperature lower than the image forming temperature and not lower than an image erasing temperature or when heated at a temperature not lower than the image forming temperature and then cooled at a second cooling speed relatively slow compared to the first cooling speed; and a crosslinked polymer layer including a crosslinked polymer having an ultraviolet absorbing structure.

Reversible thermosensitive recording medium and image forming and erasing method using the recording medium

In a floor polisher for polishing a floor by rotating a pad by a motor while running the floor polisher by way of pushing an operation handle, a dust scattering prevention device in the floor polisher comprising a dust scattering prevention cover which is provided at least a lower end portion thereof with a ring-shaped core bar and the whole of which is formed into a generally skirt-like shape widened toward a lower end thereof, using a flexible cloth, the cover being attached to a lower end opening of a pad covering an upper surface side of the pad in such a manner as that a lower end portion of the cover is in contact with the floor.

Growing community of inventors

Shizuoka, Japan

Satoshi Arai