Ricoh Company, Ltd.

Nikon Corporation

Sony Corporation

The University of Tokyo

Rocoh Company, Ltd.

Koichi Sakata

Hitoshi Iwatsuki

Hiroyuki Kishida

Hisashi Nakajima

Tomoyuki Ichikawa

Shinya Nakayama

Yasuo Asahina

Satoshi Mochizuki

Kimitoshi Yamaguchi

Shigenori Yaguchi

Hideki Sugiura

Yasuaki Iwamoto

Minoru Masuda

Akihiro Kotsugai

Osamu Uchinokura

Yutaka Takahashi

Masayuki Ishii

Toyoshi Sawada

Masami Tomita

Kazuhiko Umemura

Fumihiro Sasaki

Masashi Nagayama

Kiyonori Tsuda

Hiroto Higuchi

Shinichiro Yagi

Hiroshi Yamada

Shigeru Emoto

Junichi Awamura

Toshiki Nanya

Koichi Kato

Naohito Shimota

Takuya Saito

Tomomi Suzuki

Hiroshi Yamashita

Hiroshi Hosokawa

Toshio Koike

Toyoaki Tano

Hiroshi Tohmatsu

Mariko Takii

Tomoko Utsumi

Saori Yamada

Kenichi Mashiko

Yoshihiro Murasawa

Tohru Suganuma

Kei Niwayama

Takahiro Honda

Shinya Nakagawa

Sonoh Matsuoka

Kentaroh Tomita

Haruki Murata

Masahiro Seki

Maiko Koeda

Kohsuke Miyazaki

Hiroyoshi Asaumi

Kenji Kikuchi

Satoru Yoshida

Hitoshi Ishibashi

Shinji Tamaki

Hiroshi Fujimoto

Yasufumi Takahashi

Shunji Katoh

Yuki Oshikawa

Tsuneyasu Nagatomo

Hiroshi Ikeguchi

Michiharu Suzuki

Kohichi Utsunomiya

Tomio Kondou

Junichi Terai

Mugijirou Uno

Keiko Matsumoto

Yoshinari Higuchi

Keinosuke Kondoh

Satoru Miyamoto

Kazuaki Saiki

Seiichi Morikawa

Kenji Omata

Eriko Maruyama

Shohichi Sugimoto

Masato Taikoji

Hajime Ishimitsu

Junya Ishihara

Kentaro Tomita

Takahiro Nakamura

Naohito Bell Shine Takehara A-103 Shimota

Tomoyuki Dai6 Sumika Bldg 206 Ichikawa

Tomoko Green Grass Utsumi

Masami Pasco Grand Mansion Shinnumazu 302 Tomita

Shinya Grand River A 201 Nakayama

Provided is an encoder, which is provided in a driving apparatus comprising a motor section configured to drive a first displacement section, which is connected to a fixed section via an elastic body, and a transmission section configured to convert a displacement of the first displacement section and transmit the displacement to the second displacement section, comprising: a first detector configured to detect first displacement information of the first displacement section; a second detector configured to detect second displacement information of the second displacement section; a third detector configured to detect third displacement information of the motor section relative to the fixed section; and a computing section configured to obtain information related to a driving amount of the motor section using the first displacement information and the second displacement information, and obtain information of a load on the motor section using the third displacement information.

Encoder, driving apparatus, robot apparatus, control system, and its control method

Provided is a carrier for a developer of an electrostatic latent image, the carrier including a core particle, and a resin layer covering the core particle, where the resin layer includes metal compound particles, wherein the metal compound particles include magnesium compound particles or barium compound particles, and an exposed amount B (atomic %) of the magnesium or the barium on a surface of the carrier particle satisfies a relationship below:10.0&#x2265;B &#x2265;1.2.

Carrier for developer of electrostatic latent image, two-component developer, replenishing developer, image forming apparatus, and toner stored unit

A carrier is provided including a core particle and a resin layer coating the surface of the core particle. The resin layer includes fine metal particles, and a detected metal element amount A obtained by X-ray photoelectron spectrometry of the surface of the carrier is in a range of 4.0 atomic %&#x2264;A&#x2264;20.0 atomic % and an average major-axis length B of the fine metal particle exposing from the resin layer is in a range of 100 nm&#x2264;B&#x2264;800 nm.

Carrier, developer, supplemental developer, image forming apparatus, image forming method, and process cartridge

A carrier including a resin layer including at least one kind of particles, wherein the at least one kind of the particles are particles of barium sulfate, wherein an amount of Ba detected is 0.3 atomic % or greater in a Ba analysis through X-ray photoelectron spectroscopy (XPS) of the carrier, and wherein circle-equivalent diameters of the particles of the barium sulfate are 400 nm or greater but 900 nm or smaller.

Carrier, developer, image forming apparatus, developer stored unit, and image forming method

A developing device, including: a developer containing toner and carrier; and developer bearer configured to have surface thereof bear the developer and endlessly move, and to develop latent image over surface of latent image bearer by supplying toner in developer to latent image in developing region facing the latent image bearer, wherein carrier contains fine particles, value X in volume resistivity R (=10) (&#x3a9;&#xb7;cm) of carrier is 11.5-16.0, developer bearer includes: magnetic field generating unit including a plurality of magnetic poles; and developing sleeve having a cylindrical shape enclosing magnetic field generating unit, and configured to bear developer over outer circumferential surface of cylindrical shape by magnetic force of the magnetic field generating unit and perform surface moving by rotating relative to developing device body, and developing device includes developing sleeve voltage applying unit configured to apply AC component-containing voltage to developing sleeve.

Developing device and image forming apparatus

A synthetic controlled variable is obtained by obtaining a synthetic quantity using measurement results of a first and a second measuring instruments and corresponding gains (or transfer function) and synthesizing the synthetic quantity and one of the measurement results of the first and the second measuring instruments, respectively, via a high pass filter and a low pass filter. A feedback control system is structured that obtains a control input using a synthetic controlled variable and a desired value, and gives a plant the control input. This makes adding of a high pass filter for removing offset of installation position of the first and the second measuring instruments no longer necessary, and allows a driving system which controls robust driving in a high bandwidth of a plate stage regardless of bandwidth in which resonance appears to be designed.

Driving system and driving method, and exposure apparatus and exposure method

Provided is an electrostatic latent image developing white toner, including: a white toner including at least a binder resin, a white pigment, and a release agent; and a magnetic carrier including at least a core material, and a coating layer coating the core material and made of a coating resin and conductive particles, wherein Ra of the magnetic carrier is in a range of from 0.50 &#x3bc;m to 1.00 &#x3bc;m, and a bulk density of the magnetic carrier is in a range of from 2.08 g/cmto 2.24 g/cm.

Electrostatic latent image developing white developer, image forming method, image forming apparatus, and process cartridge

A carrier includes a resin layer including Al and Sn and covering the surface of the carrier. A detectable amount of Al is from 1.0% to 12.1% by atom and a ratio (Al/Sn) of the detectable amount of Al to that of Sn is from 2.0 to 50.0 when the carrier is subjected to an X-ray photoelectron spectroscopic (XPS) analysis.

Carrier and developer

Carrier for image forming includes a core material particle including a magnetic material and a coating layer disposed on the surface of the core material particle, the coating layer including a resin, carbon black, an inorganic particulate A, and an inorganic particulate B. The carbon black has a concentration gradient along a thickness direction of the coating layer with a concentration from high to low toward a surface of the coating layer while the inorganic particulate A has a concentration gradient along a thickness direction of the coating layer with a concentration from low to high toward the surface of the coating layer. The volume ratio of the carbon black is 0-30 percent at a depth range of 0.0-0.1 &#x3bc;m from the surface of the coating layer. The inorganic particulate A is electroconductive with a powder specific resistance of 200 &#x3a9;&#xb7;cm or less.

Carrier, developing agent, image forming apparatus, image forming method, replenishment toner, and process cartridge

A carrier is provided. The carrier includes a magnetic core particle and a resin layer coating a surface of the magnetic core particle. The resin layer includes a resin, a conductive particle including tungsten tin oxide, and a chargeable filler.

Carrier, two-component developer, image forming apparatus, process cartridge, and image forming method

There is provided a carrier including magnetic core particles; and a coating layer on a surface of each of the magnetic core particles, wherein the coating layer contains electroconductive particles; wherein the electroconductive particles are electroconductive particles in which white inorganic pigments are coated with phosphorus-doped tin or tungsten-doped tin; and wherein a dope ratio of phosphorus or tungsten to tin in the phosphorus-doped tin or tungsten-doped tin is 0.010 to 0.100.

Carrier, two-component developer, supplemental developer, image forming method, process cartridge and image forming apparatus

A carrier for developing an electrostatic latent image of the present invention includes a core material and a coating layer which coats the core material, wherein the coating layer includes a resin and fine particles, wherein the coating layer has an average layer thickness difference of 0.02 &#x3bc;m to 3.0 &#x3bc;m, and wherein the carrier for developing an electrostatic latent image has an arithmetic mean surface roughness Ra1 of 0.5 &#x3bc;m to 0.9 &#x3bc;m.

Carrier for developing an electrostatic latent image, developer and image forming apparatus

A carrier is provided. The carrier includes a particulate magnetic core, and a cover layer located on the surface of the particulate magnetic core and including a resin and a filler. When determined from observation of cross-section of the carrier, the shape factor SF2 of the carrier is from 120 to 160, the ratio of the average domain diameter of the particulate magnetic core to the number average particle diameter of the filler is from 1:1 to 1:0.003, and the area ratio of the filler in the cover layer is from 30 to 85%.

Carrier for two-component developer, two-component developer using the carrier, and image forming method and process cartridge using the two-component developer

A replenishing developer housing container includes: a container body housing a replenishing developer; a conveying portion; a pipe receiving port; and an uplifting portion. The replenishing developer contains a toner and a carrier. The container body includes a protruding portion protruding from a container body interior side of the container opening portion toward one end of the container body and a curving portion curving so as to conform to the protruding portion. The uplifting portion includes an uplifting wall surface extending from an internal wall surface of the container body toward the protruding portion. When the replenishing developer housing container is mounted on the replenishing developer conveying device, the protruding portion is present between the curving portion and the replenishing developer receiving port of a conveying pipe being inserted.

Replenishing developer housing container and image forming apparatus

Growing community of inventors

Shizuoka, Japan

Koichi Sakata