Ricoh Company, Ltd.

Fujitsu Corporation

Kao Corporation

Bridgestone Tire Company Limited

Janome Sewing Machine Company Limited

Honda Motor Co., Ltd.

Yoshihiro Sakai

Hideya Furuta

Mitsuru Mamizuka

Yutaka Koizumi

Kazushige Taguchi

Katsuo Sakai

Noriyuki Kimura

Toshiyuki Andoh

Kenichi Mizuma

Yoshinori Tanaka

Kazunori Bannai

Yasuo Asahina

Tomohiko Taniguchi

Hideaki Kurihara

Michihito Ohashi

Junko Tomita

Shunichi Chiba

Tsukasa Adachi

Shin-ichi Kuramoto

Toru Iida

Makoto Komatsu

Koichi Kudo

Yutaka Hasegawa

Ryuuichi Mimbu

Katsuya Kawagoe

Masaru Abe

Junya Takigawa

Yasunori Kawaishi

Itsuo Ikeda

Yasuji Ohta

Juro Ohga

Kensaku Fujii

Hiroyuki Masuda

Satoshi Shinguryo

Takuroh Kamiya

Kazusige Taguchi

Nobuo Kasahara

Shigeru Suzuki

Shunji Katoh

Yoshinori Takahashi

Yoshiaki Kumamoto

Shuichi Sato

Shigeyuki Unagami

Fumio Amano

Shingo Odajima

Minoru Sugiyama

Tsuyoshi Yoshimura

Harumitsu Mashiko

Tatsuo Hirono

Yoshihiro Ogata

Wataru Saka

Takanobu Miyamoto

Shoichi Taneichi

Hideki Kamiyama

Yasuhiro Komori

Yoshimine Horiuchi

Makoto Ohsaki

Mark A Johnson

Takashi Nakanishi

Manabu Kaneta

Katsushi Maeda

Toshio Kita

Munetoshi Shimotake

Hisashi Kuroda

Leo Munakata

Reo Munakata

Yasuko Shirai

Sigekazu Enoki

Tatsuya Yamamoto

Yuji Saitoh

Ryosaku Tanaka

Junpei Okuno

Tsuguyoshi Yamada

Hiroshi Ueda

Yasutaka Enoki

Noriyasu Sawada

Ituso Ikeda

Syoji Hayashi

Fumitaka Fujieda

Saki Yasumoto

Mohammad R Asharif

Shinju Nagatsuna

Yasushi Koizumi

Masayuki Kuboi

Yasushi Nakafukushima

Mark Johnson

Mohammad Reza Asharif

A needle plate attaching/detaching mechanism includes: a needle plate fixing portion rotatably provided below a needle plate mounted on a sewing machine main body, and movable between a fixed position fixing the needle plate to the sewing machine main body and a non-fixed position where the fixing is released; a driving gear jointly rotatably coupled to the needle plate fixing portion; a transmission mechanism switchable between a transmission state transmitting driving force from a motor to the driving gear and a disconnection state disconnecting the transmission; and an operating member including a manual gear transmitting manual operating force to the driving gear. When the operating member is non-operating, the transmission mechanism is set to the transmission state, and the manual gear is disconnected from the driving gear. In the operating state, the operating member switches the transmission mechanism from transmission to disconnection, and the manual and driving gears are coupled.

Sewing machine

A foot controller includes: a pedal portion that is to be depressed by a foot thereon; a pedal stand on which one end of the pedal portion is supported so that the pedal portion freely pivots about a pivot portion; a speed control member that controls an operation speed of a sewing machine; and a depression suppression member that regulates and controls a depressing operation of the pedal portion in accordance with the depression speed of the pedal portion. In response to a depressing operation which does not involve an abrupt speed change of the pedal portion, the depression suppression member is not operated and the operation speed of the sewing machine is controlled according to an amount of depression of the pedal portion. In response to a depressing operation which involves an abrupt speed change of the pedal portion, the depression suppression member is operated.

Foot controller of sewing machine

A storage device for a vehicle includes a storage section which has a space and has an engagement hole provided on the back side in a mounting direction and in which an article is put in and taken out through an opening portion, and a detachable separator which partitions the space in the storage section, is formed in a substantially L shape having two plate sections intersecting one another when viewed from the mounting direction into the storage section, has a projecting portion which protrudes toward the front in the mounting direction and is engaged with the engagement hole, and is mounted in the engagement hole at a partitioning position to divide the space into two compartments and a compartment expanding position to form a single compartment larger than either of the two compartments in the space.

Storage device for vehicle

Driving of a pulse motor is controlled in such a manner that a rotating body driven by the pulse motor rotates at a uniform angular velocity. Angular displacement of the rotating body is detected, a difference between a detection value of the angular displacement and a target value of angular displacement set in advance is calculated, and a drive pulse frequency of a drive pulse signal to be used for driving the pulse motor is calculated based on the difference and a reference drive pulse frequency. Whether the difference is added to the reference drive pulse can be selected.

Drive control method, drive control device, belt apparatus, image forming apparatus, image reading apparatus, computer product

A belt driving unit includes a rotary belt on which a scale is formed, a sensor that reads the scale, a normal-position control loop that detects an actual position of the rotary belt based on information of the scale read by the sensor, and corrects a position of the rotary belt based on the actual belt position detected, an abnormal-condition control loop for a situation when an abnormality occurs in the normal-position control loop, and a loop-switchover timing controller that controls a switchover timing of a control loop between the normal-position control loop and the abnormal-condition control loop.

Belt driving unit and, method of switching the control loop between a normal and abnormal control loop

A belt driving apparatus is disclosed, that uses feedback signals for executing feedback control of a motor that drives the rotation of a belt. The belt driving apparatus includes a first sensor for detecting an index of a scale formed along a peripheral direction of the belt, a second sensor for detecting a detection target cooperatively moving with the rotation of the belt, and a sensor switching part for selectively switching the feedback signals used for executing the feedback control of the motor. The feedback signals include first signals output from the first sensor and second signals output from the second sensor. The sensor switching part selects the first or second signals accordingly.

Belt driving apparatus, image forming apparatus, belt driving method, and computer-readable medium for driving a belt

An optical encoder includes a light emitting unit that emits parallel light onto a plurality of marks that are arranged on an object such as a rotor or a belt, at a predetermined interval in a moving direction of the object, and a light receiving unit that receives light modulated by the marks. The parallel light is generated by a collimating lens.

Optical encoder, motor driver and image forming apparatus

A scale including equally spaced marks is attached to a belt in a direction of movement of the belt such that a gap is formed between a first end and a second end of the scale. A first sensor and a second sensor detect the marks on the scale and output first signals and second signals respectively upon detecting the marks. The first sensor and the second sensor are located at different positions along the direction. A controlling unit controls the speed based on any one of the first signals and the second signals according to a position of the gap detected by the first sensor and the second sensor.

Device and method for belt speed control, and image forming apparatus

A bulky sheet material having three-dimensional protrusionsis disclosed. The sheet material comprises a first layerand a second layeradjacent to the first layer. The first layerand the second layeris partly joined together at jointsin a prescribed pattern. The first layerhas a number of raised portions which are located among the joints. The second layercomprises a material which exhibits elastomeric behavior. The bulky sheet materialexhibits elastomeric behavior as a whole and breathability.

Bulky sheet material having three-dimensional protrusions

A belt device includes a belt as an endless belt that has a scale with a large number of scale marks formed along the whole circumference of the belt. A sensor reads the scale to obtain scale information. A control device provides control to correct a belt speed, based on scale information read. A scale-mark degradation determining unit determines whether the scale mark is degraded. A belt drive controller continuously provides control to correct the belt speed for a degraded portion until the scale-mark degradation determining unit determines that there is no degradation.

Belt device, image forming apparatus, and method to control belt speed

In an image reading device having a sheet-through mechanism, a controller controls a stepping motor to decelerate an image reading system when the image reading system is moved to a reference white plate reading position, and controls a stepping motor drive electric current to decrease when the image reading system reads a reference white plate. When the image reading system finishes reading the reference white plate, the controller controls the stepping motor drive electric current to increase so as to rapidly decelerate the image reading system. The controller further controls the stepping motor such that a moving speed of the image reading system to an original document reading position is lower than a moving speed of the image reading system to the reference white plate reading position.

Image reading device and image forming apparatus including the image reading device

A belt unit includes a belt member, scale marks, a scale mark detector, a reference mark, and a reference mark detector. The belt member makes an endless movement while being stretched by stretching members. The scale mark detector detects the scale marks, and the reference mark is provided at a predetermined position on the surface of the belt member. The reference mark detector detects whether the reference mark is present at the predetermined position.

Endless belt unit, image forming apparatus, and method of driving and controlling belt member

An image forming apparatus including a rotary member having an image formation area, and a scale located at a position outside of the image formation area and on an inner circumference of the rotary member. Also included is a drive device configured to drive the rotary member, a developing device configured to develop an image on the image formation area of the rotary member, and a transfer device configured to transfer the image on the image formation area to a recording sheet. Further included is a sensor configured to detect the scale on the rotary member and to output a signal corresponding to the detection of the scale.

Image forming apparatus including rotary member speed detection mechanism

Device for regenerating printed sheet-like recording medium

Growing community of inventors

Tokyo, Japan

Yoshihiro Sakai