Canon Kabushiki Kaisha

Masataka Yashima

Tsuyoshi Shibata

Noribumi Koitabashi

Hiroyuki Sugata

Osamu Kanome

Keiji Okinaka

Akihito Saitoh

Tsuyoshi Santoh

Naoki Yamada

Kazunori Ueno

Akihiro Senoo

Tetsuya Sato

Miki Tamura

Hitoshi Yoshino

Takeshi Miyazaki

Akio Kashiwazaki

Hitoshi Tsuboi

Ichiro Onuki

Hirofumi Kamitakahara

Hisanori Hayashi

Eriko Namazue

Koichi Suzuki

Chieko Mihara

Hajime Muta

Maki Okajima

Koichi Fukuda

Akihiro Mouri

Toshinori Hasegawa

Tsuyoshi Santo

Minako Nakasu

Tomona Yamaguchi

Tomonari Horikiri

Yukitoshi Okubo

Hiroshi Matsuda

Satoshi Shimizu

Koromo Shirota

Susumu Matsumura

Taichi Shintou

Yasunori Fujimoto

Tomoyuki Noda

Kazuya Matsumoto

Hiroyuki Ogino

Katsumi Aoki

Yasuyuki Takanaka

Kenichi Suzuki

Mizuho Hiraoka

Nobutaka Mizuno

Yoshimasa Araki

Makoto Shihoh

Masahiro Okuda

Keiji Ohkoda

Hidehito Takayama

Noriyuki Chino

Yukitoshi Ohkubo

Noribuma Koitabashi

Tsyuoshi Santoh

A printed product including: a yellow image formed on an image receiving sheet including a coloring material receiving layer and a surface protective layer formed on the yellow image, wherein the yellow image and the surface protective layer are formed by sequentially applying heat to a yellow coloring material layer for forming the yellow image and a surface protective layer forming layer for forming a surface protective layer through use of a thermal transfer recording sheet including the yellow coloring material layer and the surface protective layer forming layer field sequentially; the yellow coloring material layer contains a compound having a predetermined structure as a yellow coloring material, and wherein in the printed product having formed thereon the yellow image and the surface protective layer, the compound permeates into the coloring material receiving layer to a depth of 2 μm or more.

Printed product and method of producing printed product

Provided is an organic light emitting device with enhanced durability during continuous driving. The organic light emitting device includes: an anode, a cathode, and an organic compound layer being placed between the anode and the cathode and including at least a hole transport layer and an emission layer, in which: the emission layer contains a blue light emitting material; the hole transport layer contains a plurality of kinds of organic compounds; and an organic compound having the smallest ionization potential among the organic compounds includes a compound having no absorption spectrum peak in a blue color wavelength region in a radical cation state.

Organic light emitting device

It is an object of the present invention to provide an organic light emitting device having a long-life optical output. The organic light emitting device according to the present invention is provided with an emission layer including at least a host material, a light emitting material, and another material, wherein the another material has a smaller ionization potential than and almost the same hole mobility as or a greater hole mobility than an ionization potential and a hole mobility of a compound which forms an emission layer-side-interface.

An organic light emitting device having long continuous driving lifetime is provided. The organic light emitting device includes an anode, a cathode, and an emission layer formed of an organic compound arranged between the anode and the cathode, in which the emission layer includes a light emitting material and a material having a smallest ionization potential, and an absorption spectrum in a radical cation state of the material having the smallest ionization potential in the emission layer does not have its absorption peak in an emission wavelength region of the light emitting material.

Provided is an organic electroluminescent device for emitting blue light, which has high luminous efficiency and good drive durability. This organic electroluminescent device for emitting blue light includes an anode, a cathode, and a layer which contains an organic compound interposed between the anodeand the cathode, the layer which contains an organic compound including at least a light-emitting layer, wherein the light-emitting layercontains a bipolar host having a hole mobility and an electron mobility of 10cm/Vs or greater, a light-emitting dopant and a carrier trapping dopant, and the light-emitting dopant energy gap E, the bipolar host energy gap E, and the carrier trapping dopant energy gap Eare such that E&#x3e;E&#x3e;E.

Organic electroluminescent device

An organic light-emitting device is provided which has an optical output with a high efficiency, a high luminance and a long life and which includes a pair of electrodes including an anode and a cathode, and at least one layer comprising an organic compound provided between the pair of electrodes, wherein at least one layer having a light-emitting region of the at least one layer comprising the organic compound comprises a first compound represented by the general formula (1): and a second compound having a bandgap larger than a bandgap of the first compound.

Organic light-emitting device

A production process of a light amount adjustment member, by which a cheap light amount adjustment member hating excellent optical properties can be simply produced is provided. A light amount adjustment device and a photographing apparatus which are cheap, have excellent optical properties and are equipped with the light amount adjustment member are provided by providing the simple production process of the light amount adjustment member. The production process comprises the step of relatively scanning an ink-jet head, from which an ink is ejected on a transparent base material, on the surface of which an ink-receiving layer has been formed, to the transparent base material to apply the ink to the ink-receiving layer, thereby forming a light amount adjustment region, wherein in the step of forming the light amount adjustment region, the ink is ejected from the ink-jet head in such a manner that the ink is applied to the whole light amount adjustment region.

Production process of light amount adjustment member, light amount adjustment member, light amount adjustment device and photographing apparatus

A production process of a light amount adjustment member, by which a light amount adjustment member that can sufficiently satisfy optical properties can be economically produced at low production cost and high yield by a simple operation is provided. In addition, a wide variety of light amount adjustment devices and photographing apparatus equipped with a light amount adjustment member are cheaply provided while achieving satisfactory optical properties. The production process of the light amount adjustment member comprises the step of applying a coloring liquid containing a coloring material to a transparent base material using a liquid jet recording process to form a light amount adjustment region having a particular optical density.

There is provided an organic electroluminescent display apparatus including a plurality of pixels constituting a display portion, each of the pixels includes sub-pixels of at least four colors, each of which includes an organic electroluminescent device having a pair of the electrodes and an organic compound layer formed between the pair of the electrodes, and the sub-pixels of at least four colors constitute a convex polygon containing a white color on CIE chromaticity coordinates, and includes the sub-pixels of two colors to be complementary colors with the white color interposed therebetween. In this case, the organic compound layers of the sub-pixels of two colors each contain a phosphorescent organic compound. The organic electroluminescent display apparatus can enlarge the color gamut and simultaneously can reduce the power consumption.

Organic electroluminescent display apparatus

The present invention provides a fluorene compound having a novel substituent, and the fluorene compound is represented by the following formula [1]: 

Fluorene compound and organic light-emitting device

Provided is an organic light-emitting device capable of emitting light with high efficiency by incorporating a silyl compound in which a silyl group and an amino group are directly bonded to an anthracene ring particularly into its light-emitting layer. In the organic light-emitting device including: a pair of electrodes composed of an anode and a cathode; and an organic compound layer interposed between the pair of electrodes, wherein the organic compound layer contains the following silyl compound. A layer containing at least one kind of the silyl compound is a light-emitting layer. 

There is provided an aminoanthryl derivative-substituted pyrene compound represented by the following general formula (1). The compound is useful as a compound for an organic light-emitting device exhibiting highly pure luminescent color, and an optical output with high efficiency, high luminance, and long life.

Aminoanthryl derivative-substituted pyrene compound and organic light-emitting device

Growing community of inventors

Tokyo, Japan

Masataka Yashima