Ricoh Company, Ltd.

Nec Lcd Technologies, Ltd.

Zuiko Corporation

Nec Corporation

The Furukawa Electric Co., Ltd.

Furukawa Automotive Systems Inc.

National Institute of Information and Communications Technology, Incorporated

Udc Ireland Limited

Sumitomo Electric Industries, Limited

Tokai Carbon Company, Ltd.

Telnite Co., Ltd.

Tokyo Zairyo Co., Ltd.

Toteku Co., Ltd.

Daisuke Inoue

Yuusuke Furuichi

Yukimichi Someya

Masahiro Samei

Junichi Awamura

Osamu Uchinokura

Tomoya Adachi

Daisuke Ito

Satoshi Kojima

Satoshi Ogawa

Takahiro Honda

Takamasa Hase

Teruki Kusahara

Hiroyuki Shimada

Yoshiharu Takahashi

Mamoru Hozumi

Satoshi Tohkai

Yumiko Hayashi

Rintaro Takahashi

Tomoki Murayama

Syouko Satoh

Hiroshi Yoshinaga

Hideki Ito

Hiroshi Seo

Ryota Inoue

Tsuneyasu Nagatomo

Yutaka Naitoh

Yoshihiro Fukuhata

Minoru Toyoda

Tomohiko Fujii

Masana Shiba

Akio Takei

Kouji Utani

Kenichi Mori

Michiaki Sakamoto

Shinichi Nishida

Masaki Watanabe

Masayoshi Suzuki

Arinobu Yoshiura

Tamotsu Ikeda

Wataru Sotoyama

Hiroshi Nagai

Tsuyoshi Sugimoto

Naohiro Watanabe

Jun Okamoto

Yoshihiko Hirai

Takashi Fujita

Hideya Murai

Kazumi Kobayashi

Shingo Sakashita

Toshiya Ishii

Hiroaki Matsuyama

Kenichirou Naka

Seiji Saitoh

Toshiharu Hachisuka

Yasuharu Kawarasaki

Masahiro Kuroda

Naohiro Funada

Naotaka Uchino

Kenji Komito

Kentaro Yamashita

Yoichi Iso

Ryuuta Yoshida

Kenji Ishii

Takahiro Imada

Yoshiki Yamaguchi

Takayuki Seki

Shinya Nakayama

Takashi Seto

Toshiyuki Kabata

Kenichi Hasegawa

Hiroshi Yamada

Teppei Kawata

Hideki Sugiura

Takahiko Watanabe

Takayuki Andoh

Fumihiro Sasaki

Masami Okamoto

Kenichi Maruhashi

Takaaki Tawada

Ken Tanaka

Tomomi Suzuki

Masahiro Ohmori

Masaru Kinoshita

Takayuki Itoh

Ryohei Matsuda

Hyo Shu

Kuniyuki Kaminaga

Kaori Hemmi

Mitsuaki Hirose

Hidetaka Kubo

Tomoyuki Satoh

Kentaro Ishizu

Kota Shiodera

Ryohhei Sugiyama

Hideki Fujita

Daichi Hisakuni

Takashi Arima

Shogo Nakamoto

Kenta Kashiwagi

A fixing device includes a first rotator and a second rotator that form a nip therebetween and fix an image on a recording medium that enters the nip. A heater heats at least one of the first rotator or the second rotator. A controller controls the heater to switch between a first heating and a second heating, to switch from the first heating to the second heating before the recording medium enters the nip, to start the second heating at a time prior to a nip entry time at which the recording medium enters the nip by a delay time period taken for the heater to conduct heat to the nip, and to continue the first heating before the second heating for at least one control cycle at a duty cycle of power supplied to the heater. The duty cycle is not greater than 40%.

Fixing device and image forming apparatus with a controller to switch between a first heating and a second heating

A toner is provided. The toner comprises toner base particles, resin particles adhered to surfaces of the toner base particles, and an external additive adhered to the surfaces of the toner base particles. The toner base particles each comprising a binder resin, a colorant, and a wax. The toner has a storage elastic modulus G' of 4.0×10or less at 70° C. An embedment degree of the external additive is from 15% to 40%, as the embedment degree is measured by stirring 10 g of the toner and 20 g of a carrier in a 50-mL vial at 67 Hz for 60 minutes using a rocking mill.

Toner, method for manufacturing the toner, toner accommodating unit, image forming apparatus, and image forming method

A fixing device includes an endless fixing rotator, a slide aid, a pressure rotator, a nip formation plate, a support, a heat source, and a reflector. The endless fixing rotator has flexibility. An inner circumferential surface of the fixing rotator slides over the slide aid. The pressure rotator contacts an outer circumferential surface of the fixing rotator. The nip formation plate is disposed inside the fixing rotator to contact the pressure rotator via the fixing rotator and the slide aid to form a nip between the fixing rotator and the pressure rotator. The nip formation plate has a thermal conductivity equal to or greater than 10 W/mK. The support supports the nip formation plate. The heat source is disposed inside the fixing rotator to heat the fixing rotator. The reflector reflects radiant heat from the heat source.

Fixing device including nip formation plate having a plurality of protruding portions and image forming apparatus incorporating same

The present apparatus for manufacturing an article includes a velocity-changing device that changes velocity so that circumferential velocity of a holding pad is continuously decelerated or continuously accelerated during a period from a first start time, at which hand-over of a workpiece of a first size at an upstream position as a hand-over position on a circling path is started, to a second start time, at which hand-over of a workpiece of a second size at a downstream position as the hand-over position downstream of the upstream position on the circling path is started.

Apparatus and method for manufacturing absorbent article

A heating device includes a rotator, a heating source, a reflector, a shield, a rotator holder, and a liquid or semi-solid substance. The rotator is rotatably held. The heating source heats the rotator. The reflector reflects radiant heat emitted from the heating source. The shield is disposed closer to a longitudinal end portion of the rotator than to a longitudinal center portion of the rotator to shield, between the heating source and the rotator, the radiant heat emitted from the heating source. The shield has a reflectance lower than a reflectance of the reflector. The rotator holder holds the longitudinal end portion of the rotator. The liquid or semi-solid substance has lubricity and adheres to the rotator holder.

Heating device, fixing device, and image forming apparatus including a rotator holder and reflector

A belt device includes a secured member, a belt, a pressure rotator, and lubricant. The belt has an endless shape and slides on a slide surface of the secured member. The belt has an inner portion having an elastic power of 55% or more and a sliding surface sliding on the slide surface of the secured member. The sliding surface has a surface roughness smaller than a surface roughness of the slide surface of the secured member. The pressure rotator presses the secured member via the belt to form a nip between the belt and the pressure rotator. The lubricant is interposed between the sliding surface of the belt and the slide surface of the secured member.

Belt device, fixing device, and image forming apparatus

A belt device includes a belt, a secured member, a pressure rotator, and lubricant. The belt is rotatable and has an endless shape. The belt includes an inner portion having an inner circumferential surface. The inner portion has an elastic power of 55% or more. The inner circumferential surface of the belt slides on the secured member. The pressure rotator includes a porous elastic body and presses the secured member via the belt to form a nip between the belt and the pressure rotator. The lubricant is interposed between the inner circumferential surface of the belt and the secured member.

A pressing device includes a rotator, a secured member, a pressure rotator, and lubricant. The rotator has flexibility and a sleeve form and includes an inner portion having a sliding surface. The inner portion has an elastic power of 55% or more. The secured member is inside a loop of the rotator and has a slide surface on which the sliding surface of the rotator is to slide. The slide surface has a smaller surface roughness than a surface roughness of the sliding surface. The pressure rotator presses the rotator against the secured member and forms a nip between the rotator and the pressure rotator. The lubricant between the rotator and the secured member has a consistency of 275 or less.

Pressing device and image forming apparatus incorporating same

A conveying method includes first and second pads conveying workpieces with speeds of the first and second pads being varied; circumferential velocities of the first pads and the second pads are accelerated by variable speed mechanisms; the first and second pads move and separate in a state in which a distance between the first pad and the second pad, whose speeds were increased, is increased; the circumferential velocities of the first pads and the second pads are decelerated by the variable speed mechanisms; and a first slider and a second slider, which were subjected to deceleration, overlap each other in a part in a circumferential direction, which causes the first pad and the second pad to approach each other, and the first pad and the second pad move and approach each other in this state in which the first pad and the second pad have approached each other.

Conveying apparatus and method

A nip former that forms a nip between an endless belt and a pressure rotator includes a base that is made of aluminum and has a nip forming face disposed opposite the nip. An anodic oxidation coating is treated with sealing and coats at least the nip forming face. The anodic oxidation coating has a thickness that is not smaller than 22 &#x3bc;m and is not greater than 45 &#x3bc;m and a variation in thickness that is not greater than 20 percent. The base and the anodic oxidation coating define a nip forming portion that is disposed opposite the nip. The nip forming portion has a thickness that is not smaller than 0.40 mm and is not greater than 1.20 mm.

Nip former, fixing device, and image forming apparatus

A fixing device includes a rotator, a secured member, a pressure rotator, and lubricant. The rotator has flexibility and a sleeve form. The rotator includes an inner portion having a sliding surface. The inner portion has an elastic power of 55% or more. The secured member is disposed inside a loop of the rotator and has a slide surface on which the sliding surface of the rotator is to slide. The slide surface has a smaller surface roughness in a sliding direction of the rotator than a surface roughness of the sliding surface in the sliding direction of the rotator. The pressure rotator presses the rotator against the secured member and forms a nip between the rotator and the pressure rotator. The lubricant is provided between the rotator and the secured member.

Fixing device and image forming apparatus incorporating same

A fixing device includes a rotator, a secured member, a pressure rotator, and lubricant. The rotator has flexibility and a sleeve form. The rotator includes an inner portion having a sliding surface. The inner portion has an elastic power of 55% or more. The secured member is disposed inside a loop of the rotator and has a slide surface on which the sliding surface of the rotator slides. The slide surface has a larger hardness than a hardness of the sliding surface of the rotator. The pressure rotator presses the rotator against the secured member and forms a nip between the rotator and the pressure rotator. The lubricant is provided between the rotator and the secured member.

Pressing device, fixing device, and image forming apparatus incorporating fixing device

A method in which, while an article is carried with a main portion in contact with a carrying surface and a to-be-folded portion in contact with a folder plate, includes: a first guiding step, wherein a first guide surface guides the to-be-folded portion of the unfolded article, on a side of the carrying surface, in parallel to the carrying surface; a second guiding step, following the first guiding step, wherein a second guide surface, while being in contact with the to-be-folded portion, gradually raises the to-be-folded portion while moving downstream; and a third guiding step, following the second guiding step, wherein a third guide surface guides the to-be-folded portion so that the to-be-folded portion is folded onto the main portion.

System and method for folding article

A heater includes a first heat generator and a second heat generator each of which has a hypothetical center line that divides each of the first heat generator and the second heat generator into a first section and a second section. A first conductor connects a first electrode to the first heat generator and the second heat generator. A second conductor connects a second electrode to the first heat generator and the second heat generator. A first primary connector connects the first conductor to the first section of the first heat generator. A second primary connector connects the first conductor to the second section of the second heat generator. A first secondary connector connects the second conductor to the first heat generator. A second secondary connector connects the second conductor to the second heat generator.

Heater, heating device, and image forming apparatus

A surface emitting laser includes a substrate, a lower contact layer disposed on the substrate, a semiconductor layer mesa including a lower reflector layer, an active layer, an upper reflector layer, and an upper contact layer which are laminated, in the order named, on the lower contact layer, an annular electrode disposed on the upper contact layer, and a light transmitting window situated inside the annular electrode to transmit laser light, wherein the upper reflector layer includes a first region and a second region, the first region being inclusive of an area situated directly below the electrode and the light transmitting window, the second region being inclusive of an area outside the mesa and inclusive of a surrounding area of the first region within the mesa, and wherein a proton concentration in the first region is lower than a proton concentration in the second region.

Surface emitting laser

Growing community of inventors

Tokyo, Japan

Daisuke Inoue