Kabushiki Kaisha Toshiba

Toshiba Infrastructure Systems & Solutions Corporation

Shota Kure

Takahiro Yamamoto

Takashi Yamaguchi

Takahisa Nakano

Nobuki Nemoto

Fumitoshi Morimoto

Takeo Miki

Seiji Ikari

Kazuhiro Itsumi

Kenji Miyazaki

Takanobu Nishimura

Junji Miura

Teruhiko Uno

Katsumi Motegi

According to one embodiment, a paper sheet processing apparatus includes a conveyance mechanism which conveys a paper sheet with fluorescent ink print information along a conveyance path, a fluorescence reference member including a fluorescent material and arranged to oppose to the conveyance path, a light source device which irradiates the fluorescence reference member with excitation light, and an imaging device which images the fluorescence emission of the fluorescence reference member and acquires an image including a contour of the paper sheet passing over the fluorescence reference member and an image of the fluorescent ink print information of the paper sheet.

Paper sheet processing apparatus and paper sheet processing method

A forgery prevention medium includes a substrate and a specific invisible material layer directly or indirectly laminated on the substrate, having a specific invisible material reversibly and visually recognized through a predetermined process disposed thereon in a plane shape, and having a part of the specific invisible material inactivated in accordance with a visualized image pattern.

Forgery prevention medium, forgery prevention medium manufacturing apparatus, and forgery prevention medium manufacturing method

An information recording medium according to one embodiment includes a substrate, a first image, and a second image. The first image is provided on the substrate, emits light when irradiated with first excitation light having a first wavelength, and includes phase-modulated first information. The second image is provided on the substrate, emits light when irradiated with second excitation light having a second wavelength different from the first wavelength, and includes phase-modulated second information.

Information recording medium and authenticity determination method

An information recording medium having a front surface and a back surface has a first color developing layer, a second color developing layer and a third color developing layer. The first color developing layer develops yellow at a temperature not less than a first threshold value. The second color developing layer is arranged at the back surface side with respect to the first color developing layer. The second color developing layer develops magenta at a temperature not less than a second threshold value that is lower than the first threshold value. The third color developing layer is arranged at the front surface side with respect to the first color developing layer. The third color develops cyan at a temperature not less than a third threshold value that is higher than the first threshold value.

Information recording medium

According to one embodiment, a laser recording device performs recording by irradiating a recording medium with laser light. The recording medium includes thermal recording layers including thermal materials with different color development threshold temperatures and stacked in an ascending order of the threshold temperatures of the included thermal materials from a surface irradiated with the laser light; and an intermediate layer provided between the thermal recording layers to perform thermal insulation and thermal conduction. The laser recording device includes a controller. The controller sets a power density of the laser light and an irradiation time and performs recording on the thermal recording layers by controlling irradiation with the laser light. The power density is relatively higher at recording of any of the thermal recording layers with a higher threshold temperature. The irradiation time is effectively longer at recording of any of the thermal recording layers with a lower threshold temperature.

Laser recording device and recording method

An image reading apparatus includes a sensor, a light source, and an image-capture controller. The sensor has a sensitivity area that is in a predetermined wavelength band, and acquires an image signal in accordance with light from sheet. The light source has a first light emitting unit that emits first light having a wavelength within the sensitivity area of the sensor, and a second light emitting unit that emits second light that has a wavelength which is outside of the sensitivity area of the sensor and that excites a fluorophore applied on the sheet. The image-capture controller irradiates the sheet with the first light and the second light to acquire a first image signal using the sensor, and irradiates, after acquiring the first image signal, the sheet with only the second light to acquire a second image signal using the sensor.

Image reading apparatus and sheet processing apparatus

A printing method detects a density of a first black image to be printed in a first black color; determines, when the detected density is equal to a first density, a size of a first character to be embedded in the first black image to a first size, and prints the first character at the first size in a second black color with a transmissivity at a near infrared ray band that is different from that of the first black color; determines, when the detected density is lower than the first density, a size of the first character to a second size larger than the first size, and prints the first character at the second size in the second black color; and prints a region except a region in which the first character is to be printed in the first black image, in the first black color.

Printing method

A printed matter includes: a first sub image embedded in the main image which has the same color as a color of the main image in a human visual sense, and is printed with an ink to absorb light of an infrared wavelength band by a first absorption coefficient; and a second sub image embedded in the main image which has the same color as the color of the main image in a human visual sense, and is printed with an ink to absorb the light of the infrared wavelength band by a second absorption coefficient.

Printed matter, printed matter inspection device, manufacturing method of printed matter, and manufacturing device of printed matter

According to one embodiment, an image forming method includes recording in a first recording portion, on a first member of a data recording medium, a first portion of an image to be recorded in the data recording medium; recording, in a second recording portion, a second portion of the image on a bonding surface to be bonded to the first member, of a second member of the data recording medium which is to be bonded to the first member and covers the first portion of the image that has been recorded on the first member; combining the second portion of the image with the first portion of the image to form the image; and bonding the second member to the first member.

Image forming method and image forming apparatus

According to one embodiment, an indirect transfer medium includes: a base material; and an image receiving layer on which an image is capable of being formed by ink-jet printing. The image receiving layer includes a vinyl acetate maleate copolymer as thermo-adhesive material. The image receiving layer is laminated on the base material.

Indirect transfer medium and forgery prevention medium producing apparatus

According to one embodiment, a limpness detecting device includes a transmitting unit to irradiate an acoustic wave towards a conveyed sheet to excite a Lamb wave, a first receiving unit to detect a leaky wave of the Lamb wave emitted from a front surface of the sheet, a second receiving unit to detect a leaky wave of the Lamb wave emitted from a back surface of the sheet, a comparison data calculating unit to calculate comparison data based on the signal detected by the first receiving unit and the signal detected by the second receiving unit, and an intactness judgment unit to compare the comparison data calculated by the comparison data calculating unit with a preset standard value and judge whether the sheet is an intact bill or not, based on a result of the comparison.

Growing community of inventors

Kawasaki, Japan

Shota Kure