Canon Kabushiki Kaisha

Jfe Steel Corporation

Daiichi Sankyo Company, Limited

Toyo Kohan Co., Ltd.

Toyo Seikan Co., Ltd.

Hitachi, Ltd.

Mitsubishi Electric Corporation

Tdk Corporation

Mitsubishi Heavy Industries Limited

Keisuke Yoshida

Shutaro Saito

Yuya Yamada

Taku Ashida

Takeshi Fukuda

Asuna Fukamachi

Takeshi Kozuma

Shohei Tsuzaki

Youichi Chikugo

Kenichi Tanaka

Rikiya Takemasa

Hiroshi Miyamoto

Hidekazu Tatezawa

Yasuharu Toratani

Yusuke Yamaguchi

Mikihiko Watanabe

Masahiko Matsukawa

Yuuichi Sugimoto

Kouichi Uoto

Wataru Kurokawa

Kunihiro Yoshimura

Mitsuhide Aihara

Hisahiro Matsunaga

Atsushi Ishigami

Munemitsu Hirotsu

Masaki Miyazaki

Yoichiro Hama

Hiroaki Ono

Takeshi Kaneko

Kenichi Iida

Hiroyuki Naito

Toshiomi Moriki

Toru Taniguchi

Koichi Tanimoto

Jun Hara

Nobuhide Hara

Koichiro Iida

Ryuji Hamasaki

Yoichi Uefuji

Yoshihito Nakagawa

Hiroyuki Nakaharai

Noriaki Ootsuka

Ryoji Miyatake

Shunsaku Eguchi

Shoko Yoshida

Takatoshi Chiba

Masahiko Nagai

Norimitsu Hayakawa

Takashi Shimojo

Kenji Kirihara

Yuta Takahashi

Masanobu Matsubara

Masaki Setoguchi

Marie Sasaki

Miwa Uchikawa

Masatoshi Konagaya

Ayumu Yamada

Akitake Yamaguchi

Satoko Harada

Kousuke Sasaki

Takanori Wakabayashi

Masashi Aonuma

Daisuke Tajiri

A surface inspection device of a metal strip includes: a first light source unit configured to emit light to a surface of a metal strip; a first imaging unit configured to image regular reflection light on the surface by emission light from the first light source unit; a second light source unit configured to emit light of a wavelength band different from the first light source unit to the surface; a second imaging unit configured to image irregular reflection light on the surface by emission light from the second light source unit; and a surface defect distinguishing unit configured to distinguish a surface defect by using the regular reflection light and irregular reflection light. The emission light from the first light source unit and the emission light from the second light source unit are simultaneously applied to a same place on the surface of the metal strip.

Surface inspection device, surface inspection method, and manufacturing method of metal strip

A surface inspection method includes: an irradiating step of emitting oblique illumination light onto an inspection target region of steel material using two or more oblique line light sources; an imaging step of receiving each of reflected light beams of the oblique illumination light from the respective oblique line light sources, the reflected light beams being from the inspection target region, and capturing images of the inspection target region, by one or more line sensors; and a detecting step of detecting a linear surface defect at the inspection target region using the images captured at the imaging step, wherein orthographic projections of at least two oblique illumination light beams, out of the oblique illumination light from the two or more oblique line light sources, onto a surface of the steel material are orthogonal to each other on the inspection target region.

Surface inspection device, surface inspection method, method of manufacturing steel material, method of managing quality of steel material, and manufacturing facility for steel material

An image forming apparatus includes a reception unit to receive a job, heating and pressing rotary members to form a nip portion, and a spraying member having a nozzle and a cylinder. The nozzle discharges air to the heating rotary member and a recording material. During a period after the reception unit receives the job and before a leading edge of a first sheet of the recording material reaches the nip portion, the spraying member performs a spraying operation of spraying air in an amount greater than or equal to a predetermined amount. The air that the spraying member sprays on the first sheet of the recording material during the job is higher in temperature than the air that the spraying member sprays during the period after the reception unit receives the job and before the leading edge of the first sheet of the recording material reaches the nip portion.

Image forming apparatus to suppress gloss unevenness

A fixing apparatus includes a belt, a steering roller, a slide member, and a pressing rotation member that forms a nip portion by pressing the belt and is disposed to face the slide member. The belt applies heat to a recording material and has an inner circumferential surface that receives a lubricant applied onto the inner circumferential surface. The pressing rotation member fixes a toner image onto the recording material by applying heat and pressure to an unfixed toner image in the nip portion, in cooperation with the belt. An end portion of the belt on one end side in a belt width direction takes a position outside an end portion of the slide member on the one end side and a position inside the end portion of the slide member on the one end side while the steering roller is in operation.

Fixing apparatus for fixing a toner image on a recording medium

An image forming apparatus includes a first rotatable member, a second rotatable member, an air nozzle, and a pipe. The pipe includes a portion extending along a widthwise direction of the first rotatable member perpendicular to a recording material feeding direction.

Image forming apparatus with blown-air separation of recording material from fixing member

An image forming apparatus includes a first rotatable member, a second rotatable member, an air nozzle, and a pipe. The pipe includes a portion provided in a range overlapping with the first rotatable member and making one reciprocation or more in a case that when a direction crossing a feeding direction of a recording material fed in a nip is a widthwise direction of the first rotatable member, the pipe is viewed in a direction perpendicular to the widthwise direction.

Image forming apparatus

A fixing apparatus includes a belt, a rotary member, a pad member, and a slide member. A distance in the conveyance direction between a first position and a second position is 3.0 mm or less. The first position is a downstream edge of a tip of a projection positioned most downstream in a direction of rotation of the belt. The second position is an upstream edge, in the direction of rotation of the belt, of the guide portion that contacts with the inner circumference surface of the belt. A distance in the pressing direction between a third position and a fourth position is 0.4 mm or more and 2.0 mm or less. The third position is the tip of the projection positioned most downstream in the direction of rotation of the belt. The fourth position is the same position as the second position.

Fixing apparatus

An image forming apparatus includes a stacking unit, a feeding unit, an image forming unit, a discharge stacking unit, a detecting unit, a double-side feeding passage, and a controller. In a case that subsequent to a current recording material, a subsequent recording material is discharged, the controller determines a feeding timing of the subsequent recording material depending on a discharge interval time from discharge of the current recording material on the discharge stacking unit to discharge of the subsequent recording material on the discharge stacking unit, and determines the discharge interval time on the basis of print information of at least the subsequent recording material.

A fixing apparatus includes a belt, a pad member, a pressure member, a heating roller, a stretching roller, and, an outer stretching roller. The outer stretching roller disposed between the heating roller and the stretching roller and configured to press the heating roller from an outer surface of the belt and bring the belt into contact with the heating roller. In a cross section orthogonal to a rotation axis of the pressure member, a surface between the heating roller and the stretching roller of the belt in a state where the belt is pushed toward the heating roller by the outer stretching roller is located inside that of the belt in a state where the outer stretching roller is removed.

A heat exchanger according to one embodiment includes: a heat exchange core; a shell provided to surround the heat exchange core; and a first partition wall that is provided in a space surrounded by an outer surface of the heat exchange core and an inner surface of the shell, and partitions the space into a first header space communicating with the heat exchange core and a second header space communicating with the heat exchange core. The first header space and the second header space are adjacent to each other, separated by the first partition wall.

Heat exchanger and replacement method of heat exchange core

A method of producing a graphite-containing refractory within which carbon fiber bundles are placed, the graphite constituting 1% to 80% by mass, the method including a bundling step of bundling carbon fibers to form the carbon fiber bundles; a mixing step of mixing a refractory raw material with graphite to prepare a graphite-containing refractory raw material; a pressing step of pressing the graphite-containing refractory raw material in which the carbon fiber bundles are placed to prepare a formed product; and a drying step of drying the pressed product, wherein the bundling step includes bundling 1000 to 300000 of the carbon fibers with a fiber diameter of 1 to 45 &#x3bc;m/fiber to form carbon fiber bundles 100 mm or more in length.

Graphite-containing refractory and method of producing graphite-containing refractory

A graphite-containing refractory has higher bending strength and fracture energy than known refractories. The graphite-containing refractory has a graphite content of 1% to 80% by mass. 1000 to 300000 carbon fibers with a fiber diameter of 1 to 45 &#x3bc;m/fiber are bundled. The carbon fiber bundle has a length of 100 mm or more and is placed within the graphite-containing refractory to form the same.

An image forming apparatus includes a control unit configured to perform a rubbing mode in which a rubbing rotatable member moves from a separation position to an abutment position in a state where a fixing belt is in a stop state. The control unit is configured to control a contact-and-separation mechanism in the rubbing mode such that if a predetermined temperature to which the fixing belt is heated is a first temperature, the rubbing rotatable member moves from the abutment position to the separation position at a timing when a first time has elapsed since the rubbing rotatable member abutted against the surface of the fixing belt, and if the predetermined temperature is a second temperature higher than the first temperature, the rubbing rotatable member moves from the abutment position to the separation position at a timing when a second time shorter than the first time has elapsed.

Image forming apparatus having a rubbing member that is moveable to abut a fixing belt

Growing community of inventors

Tokyo, Japan

Keisuke Yoshida