Ricoh Company, Ltd.

Ricoh Imaging Company, Ltd.

Koichi Muramatsu

Takehide Ohno

Takahiko Matsumoto

Satoshi Okano

Daisuke Takagi

Satoshi Nakazawa

Yuzuru Kuramochi

Ryuya Mashiko

Takashi Ando

Hidekazu Yaginuma

Shigeru Irisawa

Koichi Akiyama

Manabu Seo

Atsushi Sato

Shinnosuke Koshizuka

Takeshi Akai

Manabu Yamanaka

Akira Nakano

Hiroshi Fujie

Mayuko Murano

Keiji Ohkubo

Tomoaki Nakayama

A liquid ejection unit includes: a liquid holding section which has an ejection port through which a liquid is ejected and which holds the liquid; a pressure adjustment section which is configured to adjust a pressure of a liquid held in the liquid holding section; and a displacement member which is configured to displace at least a part of the liquid whose pressure is adjusted and eject the liquid from the liquid holding section.

Liquid ejection unit and liquid ejection device

A vibration damper () including a movable section (() to move in at least one direction; a support section to movably support the movable section; a vibration detector () to detect a vibration received by the vibration damper; and a computing processor () to compute an amount of displacement of the movable section () in a first direction, which is associated with the vibration, based on a detection result of the vibration detector () to obtain an amount of correction corresponding to the amount of displacement. The support section moving the movable section () in a second direction opposite to the first direction based on the amount of correction obtained by the computing processor ().

Vibration damper and electronic device

Provided is a liquid discharging head including: a membranous member including a discharging port through which a liquid is discharged; and a displacement member disposed at membranous member's one side at which the liquid to be discharged through the discharging port is provided and configured to displace a position of the membranous member to cause the liquid to be discharged through the discharging port.

Liquid discharging head and liquid discharging apparatus

A droplet forming device is provided. The droplet forming device includes a liquid holder configured to hold a liquid, a film having a discharge hole, two or more vibration generators configured to vibrate the film, and a driver configured to apply a driving signal to the vibration generators. One or more of the vibration generators are disposed in each region on the film where a polarity of bending moment differs.

Droplet forming device, droplet forming method, and dispensing apparatus

Provided is a liquid droplet forming device including: a liquid container capable of containing a liquid; a membranous member disposed at a bottom of the liquid container and including a discharging hole; a deforming unit capable of deforming the membranous member; and a driving unit configured to drive the deforming unit by outputting a discharging signal for deforming the membranous member to discharge the liquid or a suppressing signal for suppressing residual vibration of the membranous member, wherein the suppressing signal is a signal based on natural vibration period Tof the membranous member, wherein an amplitude of the suppressing signal is lower than or equal to an amplitude of the discharging signal, and wherein interval time Tfrom when outputting of the discharging signal is ended until when outputting of the suppressing signal is started satisfies a formula: T=(m&#x2212;)&#xd7;T, where m represents a positive integer.

Liquid droplet forming device and liquid droplet forming method

An electronic device includes: a circuit board with mounted components including a heat-generating electronic element mounted thereon; a casing configured to internally hold the circuit board; and a heat spreader configured to be held in the casing together with the circuit board, the heat spreader being formed by enclosing a liquid or paste-like thermal conductive medium in a flexible package and configured to deform to conform to a three-dimensional shape of the heat-generating electronic element and periphery thereof on the circuit board.

Electronic device and heat spreader

In a photographing apparatus, a low-pass selector controller (processor) is configured to perform a plurality of photographing operations including an LPF-ON photographing operation, which obtains an image signal from an image sensor in a state where the image sensor has been LPF driven by the image-shake correction device (driver) and obtains an optical low-pass filter effect, and an LPF-OFF photographing operation, which obtains an image signal from the image sensor in a state where the image sensor has not been LPF driven by the image-shake correction device (driver) and does not obtain an optical low-pass filter effect.

Photographing apparatus and photographing method with optical low-pass filter effect

An imaging apparatus includes: a base; an image sensor; and a correction mechanism that prevents an image blur, the correction mechanism including: a movable frame that holds the image sensor; a device for moving in an X-direction; a device for moving in a Y-direction; and an attracting and holding device including: an iron plate provided on one of the movable frame and the base; a magnet plate provided on the other one; and an iron ball provided between the iron plate and the magnet plate, the attracting and holding device attracting and holding the movable frame to the base by attracting the iron plate to the magnet plate via the iron ball, and wherein a guide device moves the movable frame to a side of the base when the movable frame is moved by the devices for moving in the X- and Y-directions in a predetermined direction.

Imaging apparatus and electronic device

An imaging device includes an optical system including optical elements, an image sensor, a lens barrel movable relative to a device body to move the optical elements along an optical axis, a fixed element, a movable element on which the image sensor is mounted, a drive mechanism to generate a drive force by flowing an electric current into a magnetic field, to move the movable element relative to the fixed element, and movable connectors each including a bar element and a bearing provided in the fixed element and the movable element provided to movably support the bar element along the axis. The bar elements of the movable connectors are set to move in different directions along the plane orthogonal to the optical axis. At least one of the bearings is disposed outside the lens barrel in the orthogonal direction relative to the optical axis.

Imaging device including a blur correcting mechanism for reducing the radial load on movable connectors

A shake correcting system includes an optical imaging system, an image sensor, a movable unit comprising a movable frame in which the image sensor is fixed and a rotation restricting element, a base movably supporting the movable unit in a predetermined plane substantially orthogonal to an optical axis of the optical imaging system, a drive mechanism driving the movable unit relative to the base in directions vertical and orthogonal to the optical axis, a blur correcting function to correct blurs in a subject image due to shakes of the shake correcting system, a rotation restricting mechanism preventing rotation of the movable frame around the optical axis with the rotation restricting element, and a slide mechanism allowing the movable unit to be freely movable in the predetermined plane, and comprising a magnet, a magnetic plate attracted to the magnet, a spherical element supported between the magnetic plate and the magnet.

Shake correcting system with slide mechanism which allows unit to be freely movable, lens barrel, imaging device and hand-held data terminal

An imaging apparatus includes a barrel unit having a photographic lens, an image pickup device configured to receive light through the photographic lens to capture a subject image, a movable unit configured to movably support the image pickup device in a direction perpendicular to a light-receiving axis of the subject image, a processing unit configured to process signals from the image pickup device, a flexible board configured to connect the image pickup device to the processing unit, and a positioning unit configured to position the flexible board.

Image apparatus and electronic device

An imaging apparatus includes an optical system, an image pickup device, an image blur correction mechanism, and a holding mechanism having a holding member and a state capable of being switched between a holding state where the holding member is engaged with the image blur correction mechanism so as to mechanically hold the image pickup device and a released state where the engagement of the holding member with the image blur correction mechanism is released, the holding mechanism being set to the holding state when the image blur correction mechanism is not operated. The holding mechanism has a positioning mechanism having an elastic member configured to bias the holding member to position the image pickup device from a held position where the image pickup device is held in the holding state to an original position where the image pickup device is to be electrically held by the image blur correction mechanism. A deviation eliminating operation in which the holding mechanism is set to the released state when the holding mechanism is set to the holding state is executed.

Imaging apparatus

The magnitude of magnetic attraction generated between an electromagnetic coil and a magnetic metal member (or an amount of electric current flowed to the electromagnetic coil) is controlled depending on a direction of acceleration (acceleration caused by the gravity (a gravitational acceleration) and acceleration caused by shake (shake acceleration)) working on an imaging apparatus. This magnetic attraction moves a second slider (including a CCD and a first slider) as a whole toward the electromagnetic coil. This movement brings two inclined surfaces (or fourth and fifth surfaces) of a shaft holeinto contact with a second guide shaft with no gap being interposed in between, and keeps the this contact condition.

Imaging apparatus having a biasing part configured to generate a biasing force to bias a part of the image pickup device

A photographing apparatus which performs an image-blur suppression properly even through a computation device disposed in a main body of the photographing apparatus and a photographing element movable along an XY plane are electrically connected is provided according to the present invention. The image-blur suppression mechanism comprises a flexible base plateincluding a second linear partand a fourth linear partwhich are plastically deformed along Z axial direction, meeting such a condition that an intersection line between a plane containing the second linear partand the XY plane and an intersection line between a plane containing the fourth linear partand the XY plane are intersected with XY axes, respectively.

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Yokohama, Japan

Koichi Muramatsu