Patent application number | Description | Published |
20100220580 | Holding Member, Driving Apparatus, Pickup Apparatus, and Disc Apparatus - A holding member provided with a coil comprising a proximity facilitating portion capable of bringing the coil closer to a magnetic member facing the coil. | 09-02-2010 |
20100315184 | Mounting Structure of Magnetic Member, Bonding Method of Magnetic Member and Magnetic Connection Member, Pickup Apparatus, and Disc Apparatus - A mounting structure of a magnetic member at least comprising: a magnetic member; and a magnetic coupling member provided with an adhesion securing portion configured to secure adhesive strength when bonded to the magnetic member. | 12-16-2010 |
20130003520 | OBJECTIVE LENS DRIVING APPARATUS - An objective lens driving apparatus includes: an objective lens opposing a signal recording surface of an optical disc; a lens holder configured to hold the objective lens; and an actuator configured to displace the lens holder in a focusing direction or a tracking direction of the optical disc, the actuator including a coil attached to the lens holder, a magnet configured to generate a magnetic field effectively acting on the coil, and a yoke having the magnet fixed thereto, the yoke formed by bending a sheet of metal plate into a rectangular shape around an axis in the tracking direction, and the magnet fixed to the yoke with an adhesive. | 01-03-2013 |
20130019255 | OBJECTIVE LENS HOLDER, OBJECTIVE LENS DRIVING DEVICE USING THE SAME, OPTICAL PICKUP DEVICE, AND METHOD FOR MANUFACTURING OBJECTIVE LENS DRIVING DEVICEAANM MORIMOTO; ShunichiAACI Ota-shiAACO JPAAGP MORIMOTO; Shunichi Ota-shi JPAANM TAJIRI; NoboruAACI Ora-gunAACO JPAAGP TAJIRI; Noboru Ora-gun JPAANM MATSUZAKI; ShingoAACI Ora-gunAACO JPAAGP MATSUZAKI; Shingo Ora-gun JPAANM UCHIDA; MitsuhikoAACI Ora-gunAACO JPAAGP UCHIDA; Mitsuhiko Ora-gun JP - Provided is a compact-type objective lens (OBL) holder and the like provided with a bobbin making it possible to appropriately wind a coil therearound. An OBL holder of the present invention includes: a main surface portion provided with a fixing part on which an objective lens is fixed; and a first side-wall portion and a second side-wall portion provided with bobbins around which tracking coils for driving the OBL holder itself by using a magnetic effect are wound. Further, in the present invention, each bobbin includes a tubular portion and a through-hole penetrating the tubular portion in a thickness direction thereof. Thus, an adhesive can be supplied to the tracking coil through the through-hole. | 01-17-2013 |
20130024877 | OBJECTIVE LENS HOLDER, OBJECTIVE LENS DRIVING DEVICE USING THE SAME, OPTICAL PICKUP DEVICE, AND METHOD FOR MANUFACTURING OBJECTIVE LENS DRIVING DEVICE - Provided is an objective lens (OBL) holder and the like making it possible to easily supply an adhesive to a coil accommodated in an enclosure-shaped holder. An OBL holder of the present invention includes: a main surface portion provide with a fixing part on which an objective lens is fixed; and a first side-wall portion and a second side-wall portion provide with bobbins around each of which a tracking coil for driving the OBL holder itself by using a magnetic effect is wound. In the present invention, a communication hole provided in each of the bobbins penetrates the first side-wall portion and allows a region inside the OBL holder to communicate with the outside. A focusing coil is disposed in the region. This makes it possible to supply the adhesive to the focusing coil through the communication holes. | 01-24-2013 |
20130043371 | MOUNTING STRUCTURE OF MAGNETIC MEMBER, METHOD OF BONDING MAGNETIC MEMBER AND MAGNETIC COUPLING MEMBER, PICKUP UNIT, AND DISC APPARATUS - A mounting structure of a magnetic member at least includes: a magnetic member; a magnetic coupling member mounted with the magnetic member; and an adhesive member bonding the magnetic member to the magnetic coupling member, either one or both of the magnetic member and the magnetic coupling member provided with an adhesion securing portion configured to secure adhesive strength, either one or both of the magnetic member and the magnetic coupling member provided with an adhesive member reservoir portion configured to lead the adhesive member to the adhesion securing portion. | 02-21-2013 |
20130077455 | OBJECTIVE LENS DRIVING DEVICE AND OPTICAL PICKUP APPARATUS INCLUDING THE SAME - Provided are an objective lens driving device capable of strengthening the effective magnetic fluxes of the magnets while preventing increases in size and costs of the device; and an optical pickup apparatus including the same. The objective lens driving device of the invention includes an actuator frame for movably supporting an OBL holder. Four tracking coils are attached to sidewalls of the OBL holder, and four magnets are attached to the back yokes of the actuator frame to be opposed to the tracking coils, respectively. In addition, two of the tracking coils are placed tilting to one of the sidewalls of the OBL holder. | 03-28-2013 |
20130160035 | OBJECTIVE LENS HOLDER, OBJECTIVE LENS DRIVING DEVICE, OPTICAL PICKUP DEVICE, AND METHOD FOR MANUFACTURING OBJECTIVE LENS DRIVING DEVICE - Provided is an objective lens holder, an objective lens driving device, an optical pickup device, and a method for manufacturing an objective lens driving device, in which an adhesive for fixing coils can be collectively applied to many housings. In the present invention, to collectively apply an adhesive to OBL holders, contact portions are provided to the upper portion and the lower portion of each OBL holder. Specifically, four contact portions are provided to a +Df side end portion of the OBL holder at positions near corner portions of a principal surface portion, respectively. Further, contact portions are provided to a −Df side end portion of the OBL holder at positions overlapping with the above-described contact portions. | 06-20-2013 |