Konica Minolta, Inc.

Konica Minolta Business Technologies, Inc.

Kouji Sugama

Noboru Ueda

Toyoko Shibata

Hiroshi Nagasawa

Haruo Horiguchi

Yukiko Nakai

Kazuaki Nakamura

Shiro Hirano

Aya Shirai

Junya Onishi

Anju Hori

Takaki Kawamura

Hiroyuki Konno

Keisuke Asano

Seijiro Takahashi

Yohei Ohno

Kenshi Miyajima

Hidehito Haruki

Kenji Hayashi

Kenji Yamane

Tomohiro Oshiyama

Hirofumi Hayata

Kaori Matsushima

Tatsuya Fujisaki

Ryuji Kitani

Natsuki Ito

Yukiko Kusano

Masahiro Anno

Koji Shibata

Masafumi Uchida

Michiyo Fujita

Kazuyoshi Goan

Masaharu Matsubara

Makoto Nomiya

Ikuko Sakurada

Masahiro Matsuoka

Kazumi Oura

Takako Kawamura

Okushi Okuyama

A compound that is fluidized by light irradiation and reversibly non-fluidized and is represented by the following general formula (1): In the general formula (1),

Photoresponsive compound, adhesive, switching material, and toner containing the photoresponsive compound, and image forming method using the toner

A resin composition includes: a resin having a first group capable of forming at least two hydrogen bonds; and a photoisomerization compound having a second group capable of forming at least two hydrogen bonds complementarily with the first group and having a moiety that is reversibly isomerized by light.

Resin composition, toner for developing electrostatic charge image, image forming method, photosensitive adhesive, and optical switching material

A photoresponsive polymer that is fluidized by light irradiation and reversibly non-fluidized and contains a structural unit represented by a general formula (1) shown below:

Photoresponsive polymer, photoresponsive adhesive, toner, and image forming method

[Object] An object of the present invention is to provide a photoresponsive polymer that sufficiently secures photoresponsiveness to be fluidized by light irradiation and reversibly non-fluidized, improves fixability, and further has good color reproducibility. [Solution] Provided is a photoresponsive polymer containing a structural unit derived from an azomethine derivative represented by the following general formula (1), the photoresponsive polymer being fluidized by light irradiation and reversibly non-fluidized:R—Z═Z—R  General formula (1):

Photoresponsive polymer

Provided is a polymer that includes a predetermined structural unit derived from an azomethine derivative having a polymerizable group and is reversibly fluidized and non-fluidized by being irradiated with light.

Photoresponsive high-molecular weight material, adhesive, toner, and image forming method

Provided is a compound which is fluidized by light irradiation and is less colored. The compound is a compound represented by the following general formula (1), which is fluidized by light irradiation:R—CH═N—R  General Formula (1)

Photoresponsive compound

Provided is a compound that is fluidized by light irradiation and reversibly non-fluidized, is not significantly colored, and improves fixability and exhibits excellent image stability and color reproducibility when used for a toner. Provided is a compound represented by the following general formula (1), which is fluidized by light irradiation and reversibly non-fluidized:

A photoresponsive polymer includes a structural unit represented by the following general formula (1), the photoresponsive polymer being fluidized by light irradiation, and reversibly non-fluidized:[Chemical formula 1]R—Z═Z—R  General formula (1)

A composition includes an isomerized polymer containing a structural unit containing an isomerized structure and an isomerized low molecular weight compound, the composition being fluidized by light irradiation from a solid state and being reversibly non-fluidized.

Photoresponsive material, adhesive, optical switching material, toner, and image forming method

Provided is a compound that is fluidized by light irradiation and reversibly non-fluidized, and is not significantly colored. Provided is a photoresponsive compound represented by the following general formula (1), the photoresponsive compound being fluidized by light irradiation and reversibly non-fluidized:R&#x2014;Z&#x2550;Z&#x2014;R&#x2003;&#x2003;General formula (1)

Disclosed is a compound containing a specific structure having an azomethine part, the compound being reversibly fluidized and non-fluidized by being irradiated with light.

Photoresponsive low-molecular weight material, adhesive, toner, and image forming method

A stereoscopic image forming method forms a color stereoscopic image on a recording medium having a thermal expansion property. The stereoscopic image forming method includes the steps of: fixing a color image on the thermally expandable recording medium using a color material; and irradiating the fixed color image with light of a light source having a maximum emission wavelength in a wavelength range of 280 to 780 nm. This light is absorbed by a compound contained in the color material to generate heat of the compound.

Stereoscopic image forming method and stereoscopic image forming apparatus

Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85&#xb0; C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.

Electrostatic image developing toner

The electrostatic charge image developing toner of the present invention is an electrostatic charge image developing toner including a toner mother particle including at least a binding resin, and an external additive attached onto a surface of the toner mother particle, wherein a median size on a volume basis of the toner mother particle is in the range from 3.0 to 5.0 &#x3bc;m, the binding resin contains at least an amorphous polyester resin as a main component, and a spherical silica particle () having a number average particle size in the range from 20 to 55 nm is included as the external additive.

Electrostatic charge image developing toner and two-component developer

The toner for electrostatic charge development includes a toner particle including: a toner base particle containing a binder resin and a release agent; and an external additive containing titanium dioxide. The number fraction of the toner particle containing the titanium dioxide is 0.1% or more and 2.0% or less.

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Musashino, Japan

Kouji Sugama