Canon Kabushiki Kaisha

Seiji Mashimo

Kazunori Ueno

Akihiro Senoo

Harumi Ishiyama

Tadashi Furuya

Noboru Koumura

Yuichi Hashimoto

Yukio Nagase

Yasunori Chigono

Yomishi Toshida

Izumi Narita

Yasushi Sato

Hideyuki Yano

Masaki Kuribayashi

Toshiaki Yoshikawa

Naoto Fukuda

Shinichi Urakawa

Koichi Suzuki

Hiroshi Tanabe

Jun Hirabayashi

Yoichi Osato

Jian Chen

Hidetoshi Tsuzuki

Yuzo Tokunaga

Takeo Yamamoto

Manabu Otsuka

Nobuyuki Ito

Provided is a method of manufacturing an organic light emitting device including the step of forming an electron injection layer. The step of forming the electron injection layer includes the steps of: vaporizing in a container a dopant material as a raw material of a dopant; causing the vaporized dopant material to pass a heated medium between the container and the substrate; and forming the organic compound into the electron injection layer. According to the method the organic light emitting device which has high electron injection efficiency and can be driven at a low voltage can be obtained.

Method of manufacturing organic light emitting device and vapor deposition system

A vacuum deposition apparatus capable of enhancing the productivity of an organic electroluminescence device is realized. A first pipe is connected to a deposition source for evaporating an organic electroluminescence material, and two second pipes are directed to two film deposition objects comprised of substrates and masks, whereby an organic deposition film is formed. Vapor is released simultaneously from the deposition source to plural film deposition objects on different planes to deposit films, which promotes the reduction in film deposition time and the miniaturization of an apparatus.

Deposition apparatus

A silicon compound having a repeating unit represented by the following general formula (1):wherein R is a hydrogen atom, a straight or branched alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, Ar is a substituted or unsubstituted aryl group or an unsubstituted heterocyclic group, m is an integer of 2 or more, and n is an integer of 5,000 or less.

Silicon compound and method for making the same

An electroluminescent device is formed of a pair of electrodes and an organic compound layer interposed between the electrodes. The organic compound layer is composed of an organic compound represented by the following general formula (1):wherein X is a substituted or unsubstituted arylene group or a substituted or unsubstituted heterocyclic group, each of at least two groups among Ar, Ar, Ar, and Aris a substituted or unsubstituted fluorenyl group, and the remainder represents a substituted or unsubstituted aryl group.

Organic compound and electroluminescent device using the same

A luminescent device having a pair of electrodes and a luminescent layer disposed between the electrodes. The luminescent layer comprises a compound represented by the following general formula:

Luminescent device with a triarylamine compound

Organic luminescence device

An exposure apparatus performs exposure of a photosensitive body by an array of light emitting devices to form an image as a latent image thereon. The array of light emitting devices incorporate micro-optical cavities. The micro-optical cavities limit wavelengths of light emitted from the array of light emitting devices, so that the wavelength at a peak of emitted light is in a half width region of sensitivity versus wavelength of the photosensitive body.

Exposure apparatus with an array of light emitting devices

An exposure unit includes a luminescent device array including a pair of electrodes and an organic compound layer disposed between the electrodes, and a microlens array arranged corresponding to the luminescent device array. The exposure unit is used in an image forming apparatus using an electrophotographic system.

Exposure unit for image forming apparatus using electrophotographic system, and electrophotographic image forming apparatus

An organic luminescent element includes a substrate, an anode, a cathode, at least one organic material layer interposed between the anode and the cathode, and a sealing film containing a ferroelectric material provided on the anode or the cathode on the organic material layer. Preferably, the organic luminescent element further includes a counter electrode provided on the sealing film. Preferably, the substrate is transparent, and the anode is composed of indium tin oxide.

Organic luminescent element

Silicon compound, method for making the same, and electroluminescent device using the same

A light-emitting device is disclosed which includes a light-emitting element array formed by arranging a plurality of light-emitting elements, a driving unit for driving the light-emitting element array to emit light from each of the light-emitting elements, a memory unit for storing the number of light emissions for each light-emitting element of the light-emitting element array, and a control unit for controlling the driving unit based on the information stored in the memory unit so that the amount of light emitted from each light-emitting element is held constant. An exposure device employing the light-emitting device, and an image forming apparatus employing the exposure device are also disclosed.

Light-emitting device, exposure device, and image forming apparatus

An exposure device having an array of a plurality of light emitting elements composed of at least an anode layer, a cathode layer and one or more organic compound layers interposed between the anode layer and the cathode layer all of which are formed on a substrate. In the exposure device, the quantity of light emitted from each light emitting element is made uniform by controlling the light emitting area of each light emitting element. Therefore, the exposure device eliminates differences in the quantity of emitted light among the plurality of light emitting elements without using a special drive circuit.

Light emitting element array, exposure device and image forming apparatus

A charging apparatus includes a first charging member of being supplied with a voltage to charge a member to be charged. A first charging member has magnetic particles in the form of a magnetic brush contactable to the member to be charged. A second charging member charges a region of the member to be charged corresponding to an end portion, in a longitudinal direction of the charging member, of the magnetic particles, wherein by the second charging member, the region has a potential of the same charge polarity of the voltage when the region reaches a charging position of this first charging member.

Growing community of inventors

Yokohama, Japan

Seiji Mashimo