Alps Alpine Co., Ltd.

Dai Nippon Printing Co., Ltd.

Minebea Company, Limited

Katsutoshi Suzuki

Takaharu Nagai

Koji Ichimura

Masanobu Maeda

Masaaki Kurihara

Kouji Yoshida

Saburou Harada

Yuichi Inazuki

Ryugo Hikichi

Hiroshi Sano

Makoto Abe

Osamu Nakamura

Makoto Kinoshita

Taketoshi Ohyashiki

Kazuo Muramatsu

Shoji Yoshitomi

Masatomo Komaki

Kiyoyuki Ito

A lens holder driving device includes a first piezoelectric driver configured to move a first lens holder along an optical-axis direction based on the movement of a first piezoelectric element and a second piezoelectric driver configured to move a second lens holder along the optical-axis direction based on the movement of a second piezoelectric element. The first lens holder includes a portion (first left-bearing portion) near a first shaft member and a portion near a second shaft member. The first piezoelectric driver is provided in the first left-bearing portion and contacts the first shaft member. The second lens holder incudes a portion near the first shaft member and a portion (second right-bearing portion) near the second shaft member. The second piezoelectric driver is provided in the second right-bearing portion and contacts the second shaft member.

Lens holder driving device

A lens holder driving apparatus includes a fixed member; a lens holder configured to hold a lens body; a shaft member provided on the fixed member and extending along an optical axis direction so as to guide the lens holder; a piezoelectric driver including a piezoelectric element and configured to move the lens holder along the optical axis direction by a movement of the piezoelectric element; a receiving member provided on the lens holder; and a preload member provided on the fixed member. The piezoelectric driver is provided on the fixed member. The receiving member is disposed facing the piezoelectric driver so as to contact the piezoelectric driver, and receives the movement of the piezoelectric element. The piezoelectric driver includes a contact member and is configured to be preloaded toward the receiving member by the preload member such that the receiving member contacts the contact member.

Lens holder driving apparatus

A lens driving device includes: a fixed member; a lens-retaining member; a guide mechanism; a piezoelectric driving portion; and a pressing member. The lens-retaining member, the guide mechanism, the piezoelectric driving portion, and the pressing member are each configured as described in the specification. The pressing member is formed of a leaf spring member. The pressing member includes: a fixed portion to be fixed to the fixed member; a support portion configured to support the piezoelectric driving portion; and an elastically deformable portion that is provided between the fixed portion and the support portion and is elastically deformable. The support portion includes a plate-shaped base portion that is continuous with the elastically deformable portion, and a folded portion that is folded from the base portion in an L shape and projects toward the lens-retaining member. The piezoelectric driving portion is fixed to the folded portion.

Lens driving device and camera module

A template and a template blank are used for imprint lithography transferring a transfer pattern in a concave and convex structure to a resin on a transfer substrate, in which a first step structure is formed on a main surface of a base, a second step structure is formed on the first step structure, and an outside region of the second step structure on an upper surface of the first step structure is covered with a light shielding film to solve the above problem.

Production method of template, template blank, and template substrate for imprinting, production method of template for imprinting, and template

A vibration generating device includes a housing, a vibrator including a magnet, and a resilient member between the housing and the vibrator. The vibration generating device includes a coil configured to generate a magnetic field that causes the vibrator to vibrate. The vibration generating device includes a bracket including a coil-mounting portion on which the coil is mounted. The housing includes bracket supports provided at ends of two opposing side surfaces among the four side surfaces of the housing, the ends being situated opposite ends, of the two opposing side surfaces, to which the bottom of the housing is connected. The bracket includes connection portions bonded to the respective bracket supports. The bracket supports of the housing and the connection portions of the bracket are connected together in a state in which the bracket is inserted into a space of the housing.

Vibration generating device

A vibration generator includes a housing; a vibrator; an elastic member that connects the housing and the vibrator; and a driver that causes the vibrator to vibrate. The elastic member includes a housing connection portion that is connected to the housing, a vibrator support portion that supports the vibrator, and a spring portion that connects the housing connection portion and the vibrator support portion. The housing connection portion and the vibrator support portion are in the same plane. The spring portion is formed so as to be approximately perpendicular to the housing connection portion and the vibrator support portion.

Vibration generator with elastic member with extending regions and bending metal plate to support the vibrator

A vibration generator includes a housing, a first vibrator, and a second vibrator. The first vibrator includes a hollow yoke having a through hole, a magnet disposed within the through hole of the yoke, and a first elastic support member. The second vibrator includes a coil disposed above or below the magnet within the through hole of the yoke, and a second elastic support member to which the coil is fixed and that is disposed to extend from the inside to the outside of the through hole of the yoke and that is fixed to the housing. The first vibrator vibrates at a first natural frequency in a direction connecting both side portions of the yoke. The second vibrator vibrates at a second natural frequency that is different from the first natural frequency, in the direction connecting the both side portions of the yoke.

Vibration generator

A push switch includes an operating part configured to be pressed in a first direction, an elastic holding member configured to hold the operating part such that the operating part can vibrate in a second direction orthogonal to the first direction, a frame member configured to hold the elastic holding member such that the elastic holding member can vibrate in the second direction, and a vibrator configured to generate a vibration in the second direction, the vibrator being provided in the elastic holding member.

Push switch including vibrator

An imprint method using a mold and/or a transfer substrate having a mesa structure includes a resin supply step, a contact step, a curing step, and a mold release step. In the resin supply step, a balance layer is formed by supplying a molded resin also to an area outside of a pattern formation area of the transfer substrate in which a pattern structure is to be formed.

Imprint method and imprint mold manufacturing method

A stepping motor for a meter to rotate a pointer of a meter, the stepping motor for a meter includes: a rotor part having: a cylindrical magnet; and a rotational shaft, which is hollow and made of a resin, and which is molded on an inner periphery of the cylindrical magnet and is coaxial with the cylindrical magnet; a stator part that contains the rotor part therein and has an excitation coil; a front plate made of a resin, and an end plate made of a resin, wherein a fixing part to fix the cylindrical magnet is molded when molding the rotational shaft, and wherein the cylindrical magnet is fixed by the fixing part so that the cylindrical magnet and the rotational shaft are integrated.

Stepping motor for meter

A stepping motor uses a low-cost ferrite magnet instead of an expensive rare-earth magnet. The stepping motor has characteristics equivalent or superior to those of a conventional stepping motor. The stepping motor is provided with a rotor, a stator yoke, and bearingsandwhich rotatably hold the rotorwith respect to the stator yoke. The rotorhas a columnar shape and has plural magnetic poles arranged in the circumferential direction of the outer circumferential surface. The stator yokehas an outer cylindrical portion and an inner circumferential portion which surrounds the rotorand which has plural first pole teeth and plural second pole teeth. The outer diameter 'd' of the rotorand the outer diameter 'D' of the stator yokeare set so that the ratio of &#x201c;d/D&#x201d; is greater than 0.6.

Permanent-magnet stepping motor

A head of an output shaft of a linear actuator is modified so as to absorb vibrations that may be transmitted between the output shaft and a moving object. A linear actuator has an output shaft with a leading end to which a head is fixed. The head has an O-ring that is fitted thereto, and a part of the O-ring outwardly projects from the head. The O-ring is made of rubber that is softer than the material of the head. The head is contained in a containing space in an attachment, and in this condition, the O-ring contacts an inner circumferential surface of the containing space by deforming.

Linear actuator

A main object of the present invention is to provide a solid-state image sensor capable of efficiently collecting a light beam when the central position of the light receiving element and the central position of the micro lens do not coincide with each other in the plan view owing to a plural pixel sharing structure. To achieve the object, the present invention provides a solid-state image sensor comprising at least: a light receiving element for receiving a subject light to convert into a light signal; a micro lens for improving the light collecting rate to the light receiving element; and a signal readout circuit for reading a light signal generated from the light receiving element, such that the central position of the light receiving element and the central position of the micro lens do not coincide with each other in the plan view for having a plural pixel sharing structure with the single signal readout circuit shared by a plurality of the light receiving elements, wherein the micro lens having the maximum film thickness position different from the central position is provided such that the focus position of the micro lens with respect to a parallel ray is on the light receiving element.

Growing community of inventors

Tokyo, Japan

Katsutoshi Suzuki