Ricoh Company, Ltd.

Shozo Murata

Shinji Aoki

Shigeru Yamada

Nobuaki Onagi

Yasutomo Aman

Shogo Suzuki

Akihiro Fuchigami

Yoichi Okamoto

Kohji Tsukahara

Yuusuke Taneda

Yukitoshi Tajima

Yoshimichi Takano

Yusuke Taneda

Haruki Tokumaru

Daiichi Koide

Yasunori Sugimoto

A dry cleaning casing of a dry cleaning apparatus includes a casing body including an internal space for flying a cleaning member, an opening to which a cleaning target is contacted to collide the cleaning member to the cleaning target, and an air introduction route to introduce external air to the internal space, by sucking air from the internal space while the opening is closed by the cleaning target, to generate rotating air flow for flying the cleaning member; a flow restriction member to define a rotation axis of the rotating air flow in the internal space; and a screen plate made of a porous plate to block movement of the cleaning member while passing through substance removed from the cleaning target.

Dry cleaning casing, dry cleaning apparatus and attachment method of screen plate

A dry-type cleaning chassis for cleaning a cleaning target by colliding the cleaning media with the cleaning target, the cleaning media being blown by an air flow includes an internal space where the cleaning media are to fly; an opening part being in contact with the cleaning target so that the cleaning media collide with the cleaning target; an air inlet duct introducing external air into the internal space; a suction port generating a first air flow caused by a circulating air flow in the internal space by suctioning the introduced external air; an injection port generating at least a second air flow increasing a speed of the cleaning media flown by the circulating air flow; and a porous unit passing objects removed from the cleaning target to a suction port side.

Dry-type cleaning chassis, dry-type cleaning device, and dry-type cleaning system

A dry type cleaning housing which causes a cleaning medium to fly with an air flow and places the cleaning medium on a cleaning object to clean the cleaning object is disclosed. The dry type cleaning housing includes an inner space which causes the cleaning medium to fly; an opening which abuts the cleaning medium against the cleaning object to collide the cleaning medium with the cleaning object; a ventilation path which passes air from outside into the inner space; a suction opening which suctions the air introduced into the inner space via the ventilation path to generate a revolving air flow in the inner space; a porous unit which passes removed matter removed from the cleaning object to the suction opening side; and a revolving air flow adjusting unit which arbitrarily reduces or stops the revolving air flow.

Dry type cleaning housing and dry type cleaning apparatus

Provided is an anti-cleanser dispersing element for use in a dry washing device which disperses cleanser by an air stream to allow the cleanser to collide with an object for washing. The anti-cleanser dispersing element is disposed on a side of a holder of the object opposite to a side with which the cleanser collides. The anti-cleanser dispersing element is configured to be deformed by its own weight or pressure in accordance with an outer shape of the object, to tightly attach to the object with no gap and prevent the cleanser from moving to the opposite side of the holder.

Anti-cleanser dispersing element, object holder, and dry washing device

A dry type cleaning case is for cleaning an object with a medium that flies by a revolving airflow. The dry type cleaning case includes a case unit and a leakage prevention unit. The case unit includes a space in which the medium flies, an opening that contacts the object so that the medium collides with the object, a ventilation path through which air flows into the space from outside, a suction opening that suctions the air that has been guided into the space through the ventilation path, to generate the revolving airflow in the space, and a porous unit through which a substance removed from the object is passed to the suction opening. The leakage prevention unit prevents the medium from leaking outside through the opening from the space, by causing outer air to flow in when the case unit is separated from the object.

Dry type cleaning case and dry type cleaning device

A dry-type cleaning chassis includes a chassis part including an opening part in contact with a cleaning target, an air inlet duct provided to blow external air into the internal space; a suction port provided for generating a circulating air flow in the internal space by suctioning air having been introduced into the internal space via the air inlet duct; a porous unit configured to pass objects removed from the cleaning target to a suction port side; and a path limiting member formed of a cylindrical shape extended in an axis center direction of the circulating air flow and configured so that an inside of the cylindrical shape is in communication with the suction port as a suction path.

Dry-type cleaning chassis and dry-type cleaning device

A disk rotating device includes a flexible disk in which information is recordable, a turntable on which the disk is held, a spindle that rotates the disk held on the turntable, and a stabilizer that stabilizes the rotating disk. In the disk rotating device, a rotation transmitting device transmits the rotation of the spindle to the disk via the turntable, and a disk holding device holds the disk so that the disk is elastically deformable from a center of the rotation of the disk in a radial direction of the disk.

Disk rotating device, disk, disk assembly, disk cartridge, and recording and reproducing device

An optical disk apparatus includes a rotary driving unit rotating an optical disk which is flexible, an optical pickup irradiating light upon a recording surface of the optical disk on which writing/reading of information is performed, a stabilizing unit stabilizing vibration of the optical disk in a rotary axial direction by using pressure difference of air flow at least on a portion where writing/reading is performed, and being disposed on a side of the optical disk opposite to a side on which the recording surface is provided, and a control-adjustment unit analyzing a value of a tracking error signal of the optical disk obtained by scanning along a groove of the optical disk with use of the optical pickup, comparing the analyzed value of the tracking error signal of the optical disk and a value priorly obtained by scanning along a groove of a standard disk prepared beforehand, and adjusting a positional relation between the optical disk and the stabilizing member in a three dimensional space according to the result of the comparison.

Optical disk apparatus and method of controlling optical disk apparatus

In a flexible transfer body employing curable resin as a transfer material, thickness unevenness in a substrate and a transfer layer is reduced and the thickness of the transfer layer is made to be uniform. Liquid curable resin is coated onto a rotation center or the vicinity of the rotation center of a mold, which is a rotator having a functional form on a surface thereof. A flexible film is brought into contact with a surface of the coated curable resin in a liquid state and the curable resin is spread to the circumferential edge of the mold by a centrifugal force. And the curable resin is cured by supplying chemical or thermal energy thereto and the curable resin is separated from the mold, thereby obtaining a flexible transfer body in which the curable resin is transferred to the film.

Methods for manufacturing flexible transfer body and flexible optical disc and flexible optical disc manufactured thereby

A stabilization part stabilizes surface vibration of a flexible optical disk along a rotation axis direction of the optical disk by means of pressure difference of air flow created according to Bernoulli's law at a portion on which information writing/reading is performed, provided on a side of the optical disk opposite to a side on which information recording/reproducing is performed. In this case, areas are provide on the upstream side and down stream side along the disk rotation direction of the portion of the optical disk which is stabilized by said stabilization part, said areas of the optical disk not having pressure difference created thereon by the air flow.

Disk drive system employing effective disk surface stabilization mechanism

A flexible optical disk, includes a disk substrate, wherein a rigidity of the disk is equal to or more than 5 Pa and equal to or less than 5000 Pa where the rigidity is defined as Young's modulus of the disk&#xd7;(thickness of the disk/radius of the disk).

Manufacturing method of a flexible optical disk

A disk surface of an optical disk is divided into two regions by a straight line being close to a movement line for an optical pickup to scan and passing in the vicinity of a center of the optical disk. An auxiliary stabilizing member is arranged separately from a main stabilizing member at least one of the two regions.

Recording/reproducing apparatus and disk cartridge

Optical disk stabilizing apparatus and method of controlling optical disk stabilizing apparatus

An optical disk and a method of producing it, particularly a stamper for molding a semiconductor disk base capable of forming an optical disk sufficiently compatible with commercially available CD (Compact Disk) players, a method of producing a stamper, a method of producing an optical disk base, a method of producing an optical disk, and an optical disk base and optical disk are disclosed. The present invention improves both of transferability and tact of an optical disk base molding cycle, allows a fine pattern to be formed in a transfer surface, and makes it needless to change existing molding equipment. In addition, when guide grooves formed in the optical disk are filled with a pigment by spin coating, the guide grooves have a substantially uniform configuration in the radial direction of the disk. The optical disk is sufficiently compatible with various CD players available on the market.

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Kanagawa, Japan

Shozo Murata