Ricoh Company, Ltd.

Sony Corporation

Sanyo Electric Co., Ltd.

Renesas Electronics Corporation

National Institute of Advanced Industrial Science and Technology

Hitachi-kokusai Electric Inc.

Ulvac, Inc.

Canon Anelva Corporation

Other

Mitsubishi Denki Kabushiki Kaisha

Panasonic Corporation

Tokyo Electron Limited

Showa Denko K.k.

Fujitsu Semiconductor Limited

Kanto Denka Kogyo Co., Ltd.

Katsuo Sakai

Masanori Horike

Nobuaki Kondoh

Hideya Furuta

Yohichiro Miyaguchi

Yoshihiro Sakai

Yohichiroh Miyaguchi

Tomoko Takahashi

Takeshi Takemoto

Mitsuru Mamizuka

Tsukasa Adachi

Yutaka Koizumi

Kazunori Bannai

Noriyuki Kimura

Kenji Kameda

Hitoshi Murata

Takahiko Tokumasu

Kaoru Abe

Itsuo Ikeda

Kenichi Mizuma

Osamu Endo

Satoshi Shinguryo

Akira Sekiya

Seiji Okura

Etsuo Wani

Masaji Sakamura

Takeo Tsukamoto

Yoshinori Nakagawa

Minoru Suzuki

Yasushi Nakazato

Nobuo Kasahara

Tsukuru Kai

Nobuyuki Yanagawa

Shigeru Suzuki

Makoto Obu

Koji Sakamoto

Chikara Imai

Kazushige Taguchi

Yutaka Ohira

Yuichi Aoyama

Kiyoshi Ohshima

Tadao Koike

Yuki Mitsui

Yasumori Nagahara

Masami Kadonaga

Hiromi Demizu

Hiroyuki Okamoto

Taisuke Yonemura

Makoto Ohira

Kazusige Taguchi

Youichiroh Miyaguchi

Per Klockar

Toyoji Ishikawa

Yoichiro Miyaguchi

Nobuaki Kondou

Shunuchi Abe

Kiyotaka Ota

Rokuro Watabe

Ituso Ikeda

A CVD apparatus cleaning method that efficiently removes by-product such as SiOor SiNadhered to and deposited on surfaces of an inner wall, an electrode, and the like in a reaction chamber at a film forming step. In the cleaning method the discharged cleaning gas amount is very small, environmental influences such as global warming can be lessened, and cost can be reduced. A CVD apparatus supplying reactive gas into a reaction chamber and forming a deposited film on a surface of a base material provided in the reaction chamber includes an exhaust gas recycling path recycling an exhaust gas reaching the reaction chamber from downstream of a pump on an exhaust path for exhausting a gas from an inner part of the reaction chamber through the pump.

CVD apparatus and method of cleaning the CVD apparatus

An image forming apparatus configured (a) to charge uniformly an image bearing member once, (b) to form a latent image including n levels of electric potential on the image bearing member with a single exposure, (c) to adhere a first toner on a portion of the image bearing member which has the lowest electric potential, (d) to decrease the electric potential of a portion of the image bearing member not developed with the first toner by uniformly exposing light at a first wavelength whose transmission factor is lowest for the first toner, (e) to develop using a second toner a portion of the image bearing member which has the second lowest electric potential, (f) to perform a second uniform exposure at a wavelength whose transmission factor is lowest for both the first toner and the second toner, (g) to develop using a third toner a portion of the image bearing member which has the third lowest electric potential, (h) to perform a third uniform exposure at a wavelength whose transmission factor is lowest for each of the first toner, the second toner, and the third toner, and (i) to develop a portion of the image bearing member which has the fourth lowest electric potential.

Image forming apparatus for forming a color image, and image forming method for forming a color image

An apparatus for cleaning a CVD apparatus that can efficiently remove a by-product such as SiOor SiNstuck and deposited onto the surface of an internal wall, an electrode, or the like in a reaction chamber in a film forming process, and a method for cleaning a CVD apparatus. A control monitors luminous intensity data of an F radical in a reaction chamber by optical emission spectroscopy and compares the data with calibrated prestored luminous intensity data, and ends cleaning after a predetermined time passes from reaching a luminous intensity saturation point. Furthermore, concentration data of SiFin a gas discharged from the reaction chamber are monitored by a Fourier transform infrared spectrometry and compared with prestored concentration data of SiFto decide that the predetermined time has passed when a predetermined cleaning end point concentration is reached, thereby ending the cleaning.

Device for cleaning CVD device and method of cleaning CVD device

An image forming apparatus for forming a color image, including a charging device configured to charge a moving image bearing member; a writing device configured to form a latent image the image bearing member by exposing a plurality of colors according to image information; and a developing device configured to develop the latent image with toner, wherein the writing device and the developing device are configured to perform exposure and development more than once to the image bearing member, which is charged once by the charging device so that the color image is formed from superimposed toner of each of the plurality of colors on the image bearing member.

Image forming apparatus capable of a color image, and image forming method for forming a color image

An image forming apparatus having a developing apparatus using a development system in which toner is moved by means of a traveling wave electric field. The image forming apparatus comprises a plurality of developing apparatuses having toner conveyance members which convey toner by means of a phase-shift electric field created by voltages of n phases applied to a plurality of electrodes, to a region opposing an image carrier on which an electrostatic latent image is formed; and a voltage application device which applies a voltage having an average potential value between the potential of the image portions of the latent image on the image carrier and the non-image portions of same, to the electrodes of the toner conveyance members of the respective developing apparatuses.

Image forming apparatus and image forming method using electrostatic transport and hopping

An image forming apparatus including an image carrier configured to have a latent image formed thereon, a developer carrier configured to supply toner, and a conveying member configured to receive toner from the developer carrier and to convey the toner to the image carrier. The conveying member includes first and second electrodes disposed a predetermined distance from one another. A first voltage application unit is configured to apply a first voltage to the developer carrier. A second voltage application unit is configured to apply a second voltage to the conveying member such that a ratio of a potential difference between the conveying member and the developer carrier to a distance between the conveying member and the developer carrier is less than a ratio of the second voltage to the predetermined distance.

Toner supplying system for an image forming apparatus

An image forming apparatus is disclosed that is able to improve transfer efficiency and image quality. The image forming apparatus includes an organic photo-conductor with latent images formed thereon, and a developing unit for developing the latent images. The organic photo-conductor has surface friction coefficient less than or equal to 0.3. The developing unit develops the latent images while transporting a two-composition developing agent including a toner T and a carrier C by a traveling wave electric field.

Image forming apparatus and process cartridge

A developing device including a latent image supporter. Powder is adhered on the latent image supporter to develop a latent image on the latent image supporter and a transporting member is arranged opposite to the latent image supporter. A plurality of electrodes are formed in the transporting member for generating a traveling-wave electric field to move the powder, and n-phase voltages are applied to the electrodes of the transporting member to form an electric field in a first direction so that the powder moves towards the latent image supporter at an image portion of the latent image and in a second direction so that the powder moves in a direction opposite to the latent image supporter at a non-image portion of the latent image.

Developing apparatus, developing method, image forming apparatus, image forming method and cartridge thereof

An image-forming device that is capable of minimizing toner charge deficiency while feeding an adequate amount of toner to an electrostatic toner transport substrate for transporting toner by an EH effect, having a first storage chamber for storing a mixture of toner and a friction-promoting substance; a second storage chamber; a first transport screw for stirring the mixture in the containers; a second transport screw; and a mesh provided to the first storage chamber; wherein a toner feeding unit is provided for sifting the toner in the mixture in the first storage chamber through the mesh and feeding the toner to a first electrostatic toner transport substrate (not pictured). A potential difference generator is also provided for creating an electrical potential difference between the first transport screw and the mesh, and between the mesh and the first electrostatic toner transport substrate.

Toner transport device for image-forming device

A toner supply device for preventing adverse influence caused by a charging failure of toner without scattering toner and generating ozone due to corona discharge and realizing low potential development according to an ETH phenomenon. The toner supply device is provided with the specific electrostatic toner transport substrate on which a plurality electrodes are disposed.

Developing device using electrostatic transport member

An electrostatic transportation device is provided with a transporting base plate having a plurality of electrodes which generate an electric field which performs transporting and hopping of fine particles by an electrostatic force, wherein a width of each of the electrodes in a travelling direction of the fine particles is set to be in a range of 1 time to 20 times an average particle diameter of the fine particles, a pitch between the electrodes in the travelling direction of the fine particles is set to be in a range of 1 time to 20 times the average particle diameter of the fine particles, and driving waveforms of n phases or more (n is an integer of 3 or more) are applied to respective electrodes.

Electrostatic transportation device, development device and image formation apparatus

In a duplex image transferring device of the present invention, a first bicolor toner image formed by a developing liquid is transferred to one side of a sheet. This toner image on the sheet includes a carrier liquid layer containing a liquid carrier of an amount not great enough to serve as an electrophoresis medium for a toner layer deposited on the sheet, but sufficient to serve as a parting agent for the toner layer and an intermediate image transfer belt contacting the toner image. Subsequently, a bicolor toner image of the same polarity as the toner layer is transferred to the other side of the sheet. It is possible to transfer the toner images to both sides of the sheet without switching back the one-sided sheet, without using two kinds of toner each being chargeable to particular polarity or without charging one toner image to the opposite polarity with a corona charger.

Duplex image transferring device using liquid toner development

Growing community of inventors

Yokohama, Japan

Katsuo Sakai