Mita Industrial Co., Ltd.

Sanyo Electric Co., Ltd.

Kyocera Document Solutions Inc.

Kyocera Mita Corporation

Hitachi Koki Co., Ltd.

Sanyo Electronic Components Co., Ltd.

Nitto-denko Corporation

Hideki Ishida

Hiroshi Kusumoto

Daisuke Hayashi

Eizo Fujii

Shoichi Kitagawa

Mitsugu Miyamoto

Kazuhiro Mizude

Hisahiro Kato

Tomohiro Tsutano

Takashi Nagashima

Kazuya Kamidaira

Kiyoaki Miyamoto

Nao Murakami

Takeharu Kitagawa

Hiroaki Ohashi

Shingo Yoshida

Yuji Toyota

Sueaki Okamoto

Yasuhiro Kishimoto

Naruyuki Miyamoto

Takeshi Takamatsu

Yoshifumi Ishii

Eiji Tatsumi

Toshiaki Kusuda

Ichiro Takahara

Junichi Suzuki

Hitoshi Ibuta

Hironobu Kohno

Takaya Kamimura

Tadakazu Ohgiri

Masaaki Azumi

Kazuo Shigetomi

Masato Sakai

Kuniaki Nakano

Takeshi Taniguchi

Kentarou Takeda

Kazuhisa Kondo

Katsuhiro Oomori

Hiroki Tanaka

Junji Shirakawa

Yoshikane Matsumoto

Yutaka Shoji

Takeshi Matsuoka

Hiroyoshi Omura

Tadakazu Ogiri

Junichi Nagase

Masayuki Ainoya

Hideji Mizutani

Takuya Teranishi

Chikara Ishihara

Hitoshi Tsuzuki

Naoki Tadokoro

Hiroshi Takahagi

Hideo Fukuda

Takuma Saito

Hideyuki Hashimoto

Hideaki Hasegawa

Naoki Matsunaga

Mamoru Takayama

Toshiaki Fujieda

Akira Oono

Akihiro Ozaki

Hirohito Kondoh

Toshiyuki Ito

Fukuji Neya

Ikuko Uneme

Hiromi Yamaguchi

Masaru Hatano

Takeshi Nishibe

Tomoyuki Hoshi

An image forming apparatus includes a light scanning device, a developing portion, a control portion and a storage portion. The storage portion stores an evaluation chart. The evaluation chart includes a first evaluation pattern and a second evaluation pattern. The first evaluation pattern includes a first patch row. The first patch row is formed by arranging a plurality of first evaluation patches. The first evaluation patch includes a first dot row, a second dot row and an auxiliary dot row. The second evaluation pattern includes a second patch row. The second patch row is formed by arranging a plurality of second evaluation patches.

Image forming apparatus

An image forming apparatus includes a light scanning device, a developing portion, a control portion and a storage portion. An evaluation chart includes a first evaluation pattern and a second evaluation pattern. The first evaluation pattern includes a first patch row. The first patch row is formed by arranging a plurality of first evaluation patches. The first evaluation patch includes a first dot row and a second dot row. The second evaluation pattern includes a second patch row. The second patch row is formed by arranging a plurality of second evaluation patches.

An image forming apparatus includes a light scanning device, a developing portion, a control portion and a storage portion. The storage portion stores an evaluation chart. The evaluation chart includes a first evaluation pattern and a second evaluation pattern. The first evaluation pattern includes a first patch row. The first patch row is formed by arranging a plurality of first evaluation patches. The first evaluation patch includes a first dot row and a second dot row. The second evaluation pattern includes a second patch row. The second patch row is formed by arranging a plurality of second evaluation patches.

An image forming apparatus includes a light scanning device, a developing portion, a control portion and a storage portion. An evaluation chart includes a first evaluation pattern, a second evaluation pattern, a third evaluation pattern and a fourth evaluation pattern. The first evaluation pattern includes a first dot row and a second dot row, and the third evaluation pattern includes a fifth dot row and a sixth dot row. The fourth evaluation pattern is formed by arranging a plurality of fourth evaluation patches. The fourth evaluation patch includes a seventh dot row and an eighth dot row.

A toner case includes a case main body, a conveying member and a transmitting member. The case main body is configured to store a toner and has a discharge port for the toner. The conveying member is configured to rotate around a rotation axis extending along a rotation axis direction and to convey the toner in the case main body to the discharge port. The transmitting member is configured to transmit rotation to the conveying member. The conveying member is movable along the rotation axis direction with respect to the transmitting member between a coupling position where the conveying member is coupled to the transmitting member and a release position where a coupling of the conveying member to the transmitting member is released.

Toner case and image forming apparatus

An image forming apparatus includes a light scanning device, a light detection unit, and a positional-deviation-amount calculation unit. The light detection unit includes a slit-shaped first light detection region and a slit-shaped second light detection region arranged to have mutually different angles with respect to a scanning direction of the light beam, and outputs a detection signal when the light beam passes through each of the light detection regions. The positional-deviation-amount calculation unit calculates a time period until when the light beam passes through the second light detection region from when the light beam has passed through the first light detection region for each scan of the light beam based on the detection signal output from the light detection unit, and calculates a variation characteristic of a positional deviation amount in a sub-scanning direction of the light beam associated with rotation of the polygon mirror.

Image forming apparatus that obtains variation characteristic of positional deviation amount of light beam

An image forming apparatus includes a mirror position adjustment mechanism capable of adjusting a position of a return mirror. The return mirror is used in a state in which its position is adjusted such that a gravity center position of the return mirror is separated from a rotational axis of the return mirror by the mirror position adjustment mechanism in a sub-scanning direction.

Optical scanning device and image forming apparatus including the same

A laser scanning device includes light source, deflection portion, image forming lens, a block position setting portion, and a light source control portion. The image forming lens condenses a light beam deflected by the deflection portion on a scanned surface, and causes the light beam to be scanned on the scanned surface in a scanning direction at an equal speed. The block position setting portion sets one or more block areas which each include a plurality of section areas sectioned from each other on the scanned surface in the scanning direction. The light source control portion controls the light source to irradiate the light beam to the plurality of section areas at a plurality of irradiation timings that are determined for each of the block areas. The block position setting portion shifts set positions of the block areas along the scanning direction for each scan of at least one line.

Laser scanning device and image forming apparatus including the same

A laser scanning device includes a light source, a deflection portion, an image forming lens, and a light source control portion. The light source emits a light beam. The deflection portion causes the light beam emitted from the light source to scan a scanned surface by deflecting the light beam at a predetermined deflection angle. The image forming lens condenses the deflected light beam on the scanned surface, and causes the light beam to be scanned on the scanned surface in a scanning direction at an equal speed. The light source control portion controls the light source to irradiate the light beam to at least one section area among a plurality of section areas sectioned from each other in the scanning direction on the scanned surface, at a plurality of irradiation timings determined based on a position of the at least one section area in the scanning direction.

In an image forming apparatus, a high-density portion and a low-density portion are arranged close to each other such that a boundary between the high-density portion and the low-density portion intersects with the conveyance direction of a density detection patch. A controller compares, in the conveyance direction, temporal change in the density detection value at a boundary portion shifting from the high-density portion to the low-density portion, with temporal change in the density detection value at a boundary portion shifting from the low-density portion to the high-density portion, and sets a process condition based on a result of the comparison.

An electrolytic capacitor includes an electrolytic capacitor element, anode terminals as a pair, and a conductive member. The capacitor element has an anode body formed by placing an anode foil and a cathode foil one above the other and by winding the anode and cathode foils, anode leads as a pair electrically connected to the anode foil, and a cathode lead electrically connected to the cathode foil. A dielectric layer is formed on a surface of the anode foil. A electrolyte layer is placed between the dielectric layer and the cathode foil. The anode terminals as a pair are each electrically connected to corresponding one of anode leads as a pair of the capacitor element. The conductive member electrically connects the anode terminals to each other outside the capacitor element.

Electrolytic capacitor

The present invention provides a liquid crystal panel that can provide a neutral display that is free from coloring in every direction. The liquid crystal panel includes a first polarizer, a second polarizer, and a liquid crystal cell. The first polarizeris arranged on the visible side of the liquid crystal celland the second polarizeris arranged on the backlight side of the liquid crystal cell. The liquid crystal panel further includes a first retardation layerand a second retardation layer. A refractive index ellipsoid of the first retardation layerhas a relationship of nx=ny&#x3e;nz, and a refractive index ellipsoid of the second retardation layerhas a relationship of nx&#x3e;ny&#x2267;nz. The first retardation layerand the second retardation layerare arranged between the liquid crystal celland the second polarizer

Liquid crystal panel and liquid crystal display

To provide a compact portable fastening tool which can be easily pushed at its handle portion onto a punched side, even in case a magazine is attached at an inclination with respect to the horizon, so that it can be easily used even in a narrow place. An electric fastening toolcomprises: a housinghaving a handle portionB formed to extend from a trunk portionA; an ejection unit attached to the lower portion of the housing; a magazineattached to the ejection unit; a motor housed in the housing; a battery packfor driving the motor; a flywheel rotationally driven by the motor; a follower shaft selectively rotated by the kinetic energy of the flywheel; and a plunger adapted to be linearly moved in the housingby the rotation of the follower shaft thereby to drive the nail fed into the ejection unit. The magazineis so attached that it is inclined in a side view with respect to the trunk portionA of the housingand that it is inclined in a bottom view with respect to the handle portionB of the housing

Portable fastening tool

An electric driver includes a hook portion which is constituted by a deformable hook-like portion and a connecting portion for connecting the hook-like portion to the handle. The hook-like portion is constituted by a base portion connected to the connecting portion and a bent portion continuous to the base portion, and a front end portion continuous to the bent portion and arranged at a position substantially opposed to the base portion. The front end portion and the base portion can be proximate to and remote from each other. The connecting portion holds the hook-like portion in a direction substantially the same as a direction in which the handle extends. The hook-like portion is pivotably held on a first rotating axis center extending in substantially the same direction as the handle.

Power tool

Disclosed is the prevention of the occurrence of uneven image density, as well as the image degradation caused by inhibiting the continuity of image density, produced by the photoreceptor in which uneven electrification exists, and additionally uneven sensitivity coexists, without enlargement of the apparatus as well as increase in the cost. To the exposure amount obtained by the approximate linear transformation of the pixel gradation in each segment multi-divided in the surface of the photoreceptor drum, in all the pixel gradation including 0 level, exposing sourceis controlled to expose with the amount of exposure, offset with only the offset exposure amount Ea which corresponds to the difference between the initial electric potential and the reference initial electric potential Vof the segment. The exposure amount adjustment of the offset exposure amount Ea is conducted by offsetting the exposure time in each pixel.

Growing community of inventors

Osaka, Japan

Hideki Ishida