Seiko Epson Corporation

E Ink Corporation

Keiichi Inoue

Kiyoshi Nakamura

Shinobu Yokokawa

Tomoyuki Ushiyama

Masahiko Nakazawa

Ken Ikuma

Harunobu Komatsu

Takashi Teshima

Takeo Kawase

Junichi Karasawa

Tomoya Arai

Takuro Yasuda

Kazushi Omote

Keiko Ando

Yoshinobu Asako

An electrophoretic particle includes a base particle (particle), a first compound, a second compound, and a third compound bonded to the base particle. The first compound is a polymer having a dispersion portion derived from a first monomer, and a bonding portion derived from a second monomer, and is connected to the base particle at the bonding portion. The second compound includes a non-polar group and a second functional group and is connected to the base particle at the second functional group. The third compound includes a charging group and a second functional group and is connected to the base particle at the second functional group.

Electrophoretic particle, method of manufacturing electrophoretic particle, electrophoresis dispersion liquid, electrophoresis sheet, electrophoresis device, and electronic apparatus

An electrophoretic particle includes a base particle (particle) that includes a first functional group, and a first compound and a second compound bonded to the base particle. The first compound is a polymer that includes a dispersion portion derived from a first monomer that contributes to dispersibility and a bonding portion derived from a second monomer including a second functional group having reactivity to the first functional group, and is connected to the base particle at the bonding portion. The second compound has a lower molecular weight than the first compound, includes a non-polar group and the second functional group, and is connected to the base particle at the second functional group.

An electrophoresis dispersion liquid includes first electrophoretic particle of a scattering system having an ionic group on a surface thereof; second electrophoretic particle of a coloring system having a polarization group on the surface thereof; and a dispersion medium. It is preferable that the ionic group is an acidic group, and further includes a ring structure that forms an acidic group and a salt. It is preferable that the polarization group is an organic group having a main skeleton, and a substituent bonded to the main skeleton.

Electrophoresis dispersion liquid, electrophoresis sheet, electrophoresis device, and electronic apparatus

The present invention provides an organic semiconductor element which has a low hygroscopic property and whose property is hardly deteriorated with time and an electronic device and electronic equipment each provided with such an organic semiconductor element and having high reliability. The organic semiconductor element of the present invention includes: a source electrode; a drain electrode; a gate electrode; a gate insulating layer; an organic semiconductor layer; and a buffer layer (another insulating layer), wherein at least one of the gate insulating layerand the buffer layercontains an insulating polymer with a main chain having both end portions and including repeating units represented by the following general formula (1) or (2): 

Organic semiconductor element, method of manufacturing organic semiconductor element, electronic device, electronic equipment and insulating layer forming composition

An organic transistor includes: a source electrode, a drain electrode, an organic semiconductor film provided between the source electrode and the drain electrode, a gate electrode, and a gate dielectric film provided between the organic semiconductor film and the gate electrode, the gate dielectric film including a first gate dielectric film in contact with the gate electrode and a second gate dielectric film in contact with the organic semiconductor film, the second gate dielectric film having a hydrocarbon compound containing carbon and hydrogen atoms.

Organic transistor, method for producing organic transistor, electro-optical device, and electronic equipment

A method of manufacturing a toner by using a liquid dispersion in which a dispersoid containing a material for manufacturing a toner is dispersed in a dispersion medium, and containing a dispersant having a function of improving the dispersibility of the dispersoid, the method including the steps of: preparing the liquid dispersion, applying ozone to the liquid dispersion and/or a liquid dispersion from which at least a portion of the dispersion medium has been removed, and irradiating UV-rays to the liquid dispersion and/or the liquid dispersion from which at least a portion of the dispersion medium has been removed.

Growing community of inventors

Chino, Japan

Keiichi Inoue