Asahi Kogaku Kogyo Kabushiki Kaisha

Hitachi, Ltd.

Pentax Corporation

Hitachi Industrial Equipment Systems Co., Ltd.

Mitsubishi Paper Mills Limited

Asahi Kogaku Kabushiki Kaisha

Asahi Kogaku Kogyo K.k.

Pentax Ricoh Imaging Company, Ltd.

Masahiro Kawasaki

Hiroyuki Takahashi

Shigeo Toji

Shigeru Iwamoto

Noboru Suzuki

Fumio Urano

Kohhei Aida

Osamu Sato

Tetsuji Shono

Shunsuke Mori

Yoshio Sawada

Naoyuki Uno

Eiichi Tano

Yoshinari Tanimura

Hiroshi Sasaki

Harumi Aoki

Masahiko Ando

Koji Suzuki

Tadahisa Ohkura

Kazuhito Taneoka

Shigetaka Tsubouchi

Zenichi Okura

Kotaro Araya

Yasuhiko Tada

Norio Numako

Yukio Uenaka

Masatoshi Wakagi

Yukio Takaoka

Chiharu Mori

Hirokazu Ando

Takeo Shiba

Shuji Imazeki

Yutaka Ohsawa

Toyotaka Yuasa

Katsuhiko Miyata

Tadashi Arai

Masaaki Fujimori

Yuya Tokuda

Isamu Hashimoto

Teruhiko Naruo

Sinji Urata

Satoshi Kaneko

Sukekazu Aratani

Kiyoshi Negishi

Akihiro Arai

Osamu Shindo

Yasushi Tabata

Koichi Sato

Yoshifumi Sekiguchi

Tomotoshi Ishida

Hiroshi Kurei

Katsuhiko Nomura

Hiroyuki Kagawa

Toru Kaneko

Seijiro Tokutomi

Yasumasa Tomori

Kenji Okishiro

Yuji Suwa

Takayuki Morikawa

Akihisa Miyazoe

Kunio Mita

Hideto Kiyama

Hideaki Ishiguro

Norimasa Miyachi

Daichi Miyake

Yoshiharu Kimura

Kota Otake

Shintarou Takeda

Hiroyuki Takahasi

Nayuki Uno

It is possible to provide a temperature detection ink, which allows color initialization by a simple method and discolors with addition of time and temperature at a reaction temperature or higher. To solve the problem, the temperature detection ink according to the present invention includes a temperature detection material and a solvent. The temperature detection material has a structure in which a thermosensitive material containing a leuco dye, a color-developing agent, and a decolorant is contained in a microcapsule, or a structure in which a phase containing the thermosensitive material is phase-separated from a matrix material. The thermosensitive material is solidified while being decolored by cooling from a molten state to a glass transition temperature or lower at a predetermined rate or higher. The thermosensitive material has a glass transition temperature of −20 to 60° C., and a melting point that is 60 to 250° C. and lower than the boiling point of the solvent.

Temperature detection ink, temperature detection ink initialization method, temperature indicator, and article management system

A temperature detecting material comprises a first material containing a first temperature indicating material and a second material containing a second temperature indicating material, wherein the first temperature indicating material and the second temperature indicating material contain a leuco dye, a color developing agent, and a decoloring agent, and have a hysteresis characteristic in their color density-temperature curves, wherein the first temperature indicating material has a color developing temperature in a temperature increase process lower than a decoloring temperature in the temperature increase process, and turns to a non-crystalline state and is kept in a decoloring state when cooled down below the color developing temperature in the temperature increase process with a predetermined cooling speed or more after melting, wherein the second temperature indicating material, a color developing temperature is lower than a decoloring temperature in the temperature increase process, and wherein the color developing temperature in the temperature increase process is lower than the decoloring temperature in the temperature increase process and the color developing temperature is lower than the color developing temperature in the temperature increase process.

Temperature detecting material, temperature detecting ink using same, temperature indicator, and product control system

An object of the present invention is to provide a temperature sensing material that changes a color density continuously with the lapse of time at a temperature not lower or higher than a predetermined temperature and a temperature deviation time estimating system using it. In order to achieve the above object, the temperature sensing material according to the present invention is a temperature sensing material having a structure of dispersing a temperature indicating material that changes color by crystallization in a dispersion medium and is characterized in that an average particle size of the temperature indicating material is not larger than a resolution when observed and a volume fraction of the temperature indicating material to the temperature sensing material is not less than 5% to less than 90%.

Temperature sensing material, and temperature deviation time estimating system employing same

An object of the present invention is to provide a temperature detection material that can be manufactured through a simple step and is excellent in handleability. In order to solve the above problem, the temperature detection material according to the present invention includes a temperature-indicating material including a leuco dye, a color developer, and a color eraser and a matrix material; and is characterized in that the matrix material is in a solid state, a melting point of the matrix material is higher than a melting point of the temperature-indicating material, and a phase separation structure in which the temperature-indicating material disperses in the matrix material is formed.

Temperature detection material, temperature detection ink using same, temperature indicator, method for manufacturing temperature detection material, and product management system

Disclosed is a mechanically readable code including a first area comprising multiple first unit cells and including an information region where information was recorded and a second area including multiple second unit cells including an allochroic cell that changes in color depending on a physical quantity. The multiple first unit cells include transitional color cells having any transitional color in the process of color change of the allochroic cell.

Code, information processing system, and information processing device

A calculation device comprises a color evaluation unit that acquires a sensor color and four or more reference colors from photography data from a measurement time when an indication object was photographed in a second photography environment; determines coefficients for color conversion between a first and the second photography environments based on the amount of change from color information for the reference colors in the first photography environment, which has been read from a calculation device storage unit, to color information for the reference colors in the second photography environment, which has been acquired from the photography data; and uses the sensor color acquired from the photography data from the measurement time and the color conversion coefficients to correct the sensor color to the color that would have been photographed in the first photography environment by solving a conversion formula including terms representing an affine transformation consisting of translation.

Color evaluation device, color evaluation method, and indication object used in color evaluation method

The present invention addresses the problem of providing a temperature detection label capable of preventing falsification using a simple structure. To solve this problem, the present invention provides a temperature detection label that is characterized by comprising a supporting member and a temperature detection part provided on the supporting member and in that: the temperature detection part has a temperature detection material that, in a heating process, starts color development at temperature Tand starts losing color as a result of melting at temperature Tand, in a cooling process, solidifies while remaining colorless by being cooled to temperature Tor lower; the temperature detection material includes a leuco dye, decolorizer, and developer; and the temperature detection label also comprises a member having an appearance that changes between Tand T, inclusive, or a high-melting-point material having a melting point or glass transition temperature higher than T.

Temperature detection label and article management device using same

The present invention is directed to a temperature detecting element including base materials provided with substrates and electrodes arranged on the substrates, and a temperature detector arranged to electrically contact the electrodes on the substrates, in which a change in an electromagnetic wave absorbing property (light-absorbing property) and a change in an electrical property (resistance value) corresponding to a temperature change of the temperature detector are reversible. The temperature detecting element is easily stored and managed before use, and a temperature change in a temperature management environment can be accurately detected.

Temperature detecting element and temperature detecting apparatus including the same

To address the problem of providing a temperature history indicator capable of specifying a time when a temperature deviated from a set temperature range, a temperature history indicator according to the present invention is characterized in being provided with a substrate and temperature indicators that irreversibly change color upon deviation from a set temperature range, and in that a plurality of the temperature indicators are provided on the substrate, the temperatures at which the temperature indicators change color a within &#xb1;2&#xb0; C. of each other, and the temperature indicators change color after different amounts of time from deviation from the set temperature range.

Temperature traceable indicator and article quality management method using same

A purpose of the present invention is to provide a temperature history indicator that allows for visual confirmation of whether the temperature is at or below a prescribed temperature as well as simple conversion of this information into data. A temperature history indicator according to the present invention is characterized by being provided with a label layer and a temperature-indicating layer laminated above or below the label layer, wherein the temperature-indicating layer includes a substance having at crystallization starting temperature of 10&#xb0; C. or lower and a melting point at least 20&#xb0; C. higher than the crystallization starting temperature.

Temperature history indicator

This marking system is provided with: a marking device which has a marking unit which gives a mark for managing the quality of a product, a housing part which houses one or more temperature indicating materials, and a providing unit which provides, to the marking unit, a temperature indicating material selected by the housing part; and a control device which has a storage unit that stores temperature-indicating material information on a developing temperature or/and a decoloring temperature of each of the temperature-indicating materials included in the housing part; and a processing unit that acquires, from a server or an input unit, an appropriate temperature of the product, selects, on the basis of the acquired appropriate temperature of the product and the temperature-indicating material information, a temperature-indicating material, and notifies the providing unit of details of providing the selected temperature-indicating material.

Marking system and marking device

The present invention addresses the problem of providing a temperature sensing body capable of sensing both a temperature increase and a temperature decrease, and having an anti-tampering function. In order to solve said problem, this temperature sensing body is characterized by including: a first ink in which a temperature Tfor initiating color disappearance when the temperature rises and a temperature Tfor initiating color development when the temperature falls are different; and a second ink in which a temperature Tfor initiating color disappearance when the temperature rises and a temperature Tfor initiating color development when the temperature falls are different, wherein the temperature Tfor initiating color disappearance, the temperature Tfor initiating color development, the temperature Tfor initiating color disappearance, and the temperature Tfor initiating color development have the relationship, T&#x3c;T&#x3c;T&#x3c;T.

Temperature sensing body

This printing device is provided with a first ink container that contains a first ink; a second ink container that contains a second ink; temperature adjusting units that adjust the temperature of the first ink contained in the first ink container and/or the temperature of the second ink contained in the second ink container; a nozzle that sprays the inks; and a control unit that controls the first temperature adjusting unit and the second temperature adjusting unit.

Printing device, printing device control method and writing device

A quality control system includes a control device, an output device, and an input device placed at at least an end point of a distribution channel of articles; the input device includes an input unit for receiving data on a changed environment portion and a communication unit that transmits the data, information about an input location, and an input time to the control device. The control device includes a storage unit for storing the mode of packing of the articles in the distribution channel, a reception unit for receiving the information from the input device, an arithmetic operation unit that calculates the number of articles deviating from the storage environment and estimates the stage of the distribution channel deviating from the storage environment, and a transmission unit for transmitting calculation result to the output device that is provided with a display unit.

Quality control system and quality control method

An object is to provide a super-conducting coil and a magnetic resonance imaging device that are quench-free by reducing Joule heat generated upon occurrence of separation of members even in a high magnetic field. The super-conducting coil in accordance with the present invention includes a spool and a super-conducting wire wound around the spool. The coil further includes, between the spool and the super-conducting wire, a first resin layer containing thermoplastic resin, a second resin layer containing thermosetting resin, and a mixed layer, the mixed layer being positioned between the first resin layer and the second resin layer and containing a mixture of the thermoplastic resin and the thermosetting resin.

Super-conducting wire, super-conducting coil, and magnetic resonance imaging device

Growing community of inventors

Tokyo, Japan

Masahiro Kawasaki