Ricoh Company, Ltd.

Other

Suzuki Motor Corporation

Shizuoka University

Kunio Hayakawa

Mitsunobu Morita

Hitoshi Shimbo

Shinya Kawahara

Hiromi Furuya

Masafumi Torii

Kiyotaka Iiyama

Mitsuru Naruse

Shigeyuki Harada

Masahiro Nakata

Kaoru Kodera

Keishi Taniguchi

Tadafumi Tatewaki

Shin Yamamoto

Yoshikazu Kaneko

Yasutomo Mori

Takehito Yamaguchi

Satoshi Yamamoto

Takashi Okada

Ryoichi Suzuki

Yoshihiko Hotta

Takayuki Sasaki

Yutaka Hasegawa

Kyoji Tsutsui

Keishi Kubo

Takeshi Shibuya

Hiroaki Matsui

Osamu Miyazaki

Jun Maruyama

Nobuaki Tomidokoro

Shoji Maruyama

Ikuo Katoh

Takeshi Kajikawa

Hideo Suzaki

Hitoshi Kondoh

Wataru Nara

Midori Aida

Naoyuki Suda

Masami Higuchi

Yutaka Kuga

Kyohji Okada

Kyohji Tsutsui

Ikuo Kameoka

Xiaonan Yang

Nobuo Akagi

Kouji Oohara

Hisanori Shimada

Hajime Hojo

You Masuyama

Youko Fukui

Shuuji Miyamoto

Yuuichi Kawaguchi

A resin coat filmformed on a skirt portionof a pistonhas a four-sided outer peripheral region knurled at upper and lower regions thereof corresponding in a rear view of the pistonto an upper skirt partand a lower skirt partof the skirt portionextending in parallel with an axial direction of left and right piston pin boss portionsand, with a combination of short vertical groovesA andB and medium-length vertical groovesA andB extending in parallel with a central axis C of a piston crow portion, and at left and right edge regions thereof, with long vertical grooves

Piston for internal combustion engines

The present invention provides a reversible thermosensitive recording medium including: where 'n' is an integer of 23 or greater.

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

A heat-sensitive pressure-sensitive adhesive which contains at least a thermoplastic resin and a thermofusible material, wherein the thermoplastic resin has a glass transition temperature of &#x2212;70&#xb0; C. to &#x2212;30&#xb0; C., and the thermofusible material comprises triphenylphosphine, and at least any one of tris(2,4-di-t-butylphenyl)phosphite and tetrakis[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate]methane, or a heat-sensitive pressure-sensitive adhesive which contains at least a thermoplastic resin, a thermofusible material and a non-thermofusible material, wherein the thermofusible material contains triphenylphosphine.

Heat-sensitive pressure-sensitive adhesive and heat-sensitive adhesive material

A thermosensitive adhesive composition including a thermosensitive plastic resin, a dispersing agent, a solid plasticizing agent and a eutectic agent represented by the following chemical structure (1): wherein Xand Xindependently represent any one of a hydrogen atom, a halogen atom and an alkyl group, p and q independently represent an integer of from 1 to 5.

Thermosensitive adhesive composition, method of manufacturing the same and thermosensitive adhesive material

The reversible thermosensitive recording medium according to the present invention comprises a support, a thermosensitive layer and a protective layer in order, the thermosensitive layer comprises an electron-donating coloring compound and an electron-accepting compound and reversibly changes the color depending on temperatures, and the protective layer comprises a reactive heterocyclic compound, and inorganic fine particles of which surface is at least partially treated into hydrophobic, alternatively the protective layer comprises inorganic fine particles of which number-average particle size is 100 nm or less and of which surface is at least partially coated with organic silane compounds.

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

The present invention provides a reversible thermosensitive recording medium including a support and a thermosensitive recording layer thereon, in which the thermosensitive recording layer comprises an electron-donating coloring compound and an electron-accepting compound, and the thermosensitive recording layer is capable of forming a relatively developed condition and a relatively erased condition depending on at least one of the difference of heating temperatures and the difference of cooling rates following to heating, and in which the electron-accepting compound comprises a phenol compound represented by the General Formula (1): where, in the General Formula (1) 'l' represents an integer of 1 to 3, 'm' represents an integer of 1 or more, and &#x201c;n&#x201d; represents an integer of 7 or more.

Phenol compound, reversible thermosensitive recording medium, reversible thermosensitive recording label, reversible thermosensitive recording member, image-processing apparatus and imaging-processing method

A reversible thermosensitive recording medium including a substrate, a reversible thermosensitive recording layer and an intermediate layer. The reversible thermosensitive recording layer is configured to reversibly record and erase an image therein and disposed overlying the substrate and includes a binder resin and a reversible thermosensitive coloring composition. The reversible thermosensitive coloring composition includes an electron donating coloring compound and an electron accepting compound. The intermediate layer includes another binder resin and a content of hollow particles having a hollow ratio not less than 70% and a ratio of a maximum particle diameter thereof to a 50% cumulative particle diameter of from 2.0 to 3.0. The reversible thermosensitive recording layer achieves a colored state when heated to a temperature not lower than a melting point thereof, and achieves a discolorization state when heated to a temperature lower than the melting point. The reversible thermosensitive recording layer has an erasable energy range width of at least 0.1 mJ/dot when using a thermal head.

Reversible thermosensitive recording medium, information storage material, reversible thermosensitive recording label, image processing method and image processing device

There is provided a reversible thermosensitive recording medium including a support, an intermediate layer, and a thermosensitive recording layer which reversibly changes a color thereof depending on a temperature, wherein the thermosensitive recording layer contains an electron-donating coloring compound, and an electron-accepting compound represented by the following general formula 1: where, n is an integer of 23 or more, and wherein the intermediate layer is disposed between the support and the thermosensitive recording layer, and contains hollow particles having a void ratio of 70% or more, a maximum diameter D100 of 5.0 &#x3bc;m to 10.0 &#x3bc;m, and a ratio D100/D50 of 2.0 to 3.0 where the ratio D100/D50 is a ratio of the maximum diameter D100 to a 50% cumulative particle diameter D50 of the hollow particles.

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

A reversible thermosensitive recording medium including a substrate; and a reversible thermosensitive recording layer located on the substrate and reversibly achieving a relatively colored state and a relatively discolored state depending on the temperature to which the recording layer is heated or the cooling speed at which the recording layer is cooled after heating, wherein the reversible thermosensitive recording layer comprises a polyalkylene glycol compound having a number average molecular weight not less than 2,000 exclusive of polypropylene glycol having a number average molecular weight not greater than 5,000. A reversible thermosensitive recording device, and an image processing method and apparatus using the reversible thermosensitive recording medium are also be provided.

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

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

A thermal recording material including a substrate; a thermal coloring layer which is located overlying the substrate and which includes a leuco dye and a developer for coloring the leuco dye upon application of heat; and a protective layer which is located overlying the thermal coloring layer and which includes a binder resin, a crosslinking agent and a filler, wherein the binder resin in the protective layer includes a polyvinyl alcohol having a silanol group, and the crosslinking agent includes a zirconium compound of lactic acid.

Thermal recording material

A thermosensitive recording material comprising a thermosensitive layer provided on a substrate, and the thermosensitive layer comprises as main ingredients a leuco dye and a developer to make colored state of said leuco dye when heated, wherein the developer is an oligomer composition obtained from the reaction of a polyvalent isocyanate compound represented by following Formula (I) with an aromatic amine represented by following Formula (II); where X represents a try- or more-valent group, a represents an integer numeral of 3 or more, b and c represent respectively integer numerals in the range of 0 to 5 and they satisfy a relation of b+c=1 to 5, Z represents hydrogen atom, alkyl group, allyl group or aryl group, and the aryl group may include condensed ling structure thereof, and d represents an integer numeral in the range of 0 to 4. This developer shows excellent reliabilities of both image and background area, and also shows an excellent color-developing characteristics (color developing sensitivity and image density).

Thermosensitive recording material, and synthesis method of oligomer composition for the recording material

A thermosensitive recording material comprising a thermosensitive layer provided on a substrate, and the thermosensitive layer comprises as main ingredients a leuco dye and a developer to make colored state of said leuco dye when heated, wherein the developer is an oligomer composition obtained from the reaction of a polyvalent isocyanate compound represented by following Formula (I) with an aromatic amine represented by following Formula (II);()&#x2003;&#x2003;Formula (I)where X represents a try- or more-valent group, a represents an integer numeral of 3 or more, b and c represent respectively integer numerals in the range of 0 to 5 and they satisfy a relation of b+c=1 to 5, Z represents hydrogen atom, alkyl group, allyl group or aryl group, and the aryl group may include condensed ling structure thereof, and d represents an integer numeral in the range of 0 to 4. This developer shows excellent reliabilities of both image and background area, and also shows an excellent color-developing characteristics (color developing sensitivity and image density).

There is provided a leuco dye dispersion liquid for a thermosensitive recording material wherein the leuco dye is being dispersed with an anionic surfactant and an nonionic surfactant, while average particle diameter of the leuco dye ranges from 0.10 &#x3bc;m to 0.30 &#x3bc;m and content of particles less than or equal to 0.07 &#x3bc;m in diameter of the dye is not greater than 1.0%. The leuco dye dispersion liquid shows no fogging, and can cause a high optical density of image on thermosensitive member with excellent brightness in background area, and a high durability for storage at elevated temperature.

Dye dispersion liquid and thermosensitive recording material using the same

An electrophoretic display material and apparatus is disclosed, including a dispersion medium, a white particulate material having a volume median particle diameter Dw, and a colored particulate material having a color different from the color of the white particulate material and a volume median particle diameter Dc, and wherein a ratio Dc/Dw is from 1/1 to 1/50.

Electrophoretic display liquid and electrophoretic display medium and device using the liquid having predetermined different volume medium particle diameters

Growing community of inventors

Mishima, Japan

Kunio Hayakawa