"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7986067 | Brushless motor A brushless motor is smaller, flatter, and lighter but is easy to assemble and has reduced motor vibration. An attachment base is integrally molded by two-color extrusion molding using a first resin material that forms a base main portion and a second resin material... | 07/26/2011 |
| 7728476 | Inner rotor brushless motor An inner rotor brushless motor is miniaturized, flattened and made lighter without reducing motor performance. A rotor and a stator are enclosed inside a sealed case (i.e., a sealed space) assembled by covering an attachment base with a cup-shaped bracket. A motor s... | 06/01/2010 |
| 7710225 | Actuator The present invention provides the actuator, which is capable of preventing biased abrasion by lowering a surface pressure at a contact portion of a movable element with a guide surface and increasing a movable range, in which a specified output force can be gained.... | 05/04/2010 |
| 7621724 | Stator for solenoid pumps The stator for an electromagnetic pump is designed to improve output efficiency of the pump by decreasing leakage flux. An air-core electromagnetic coil (50a, 50b) is fitted around periphery of a cylinder, and axial end faces of an electr... | 11/24/2009 |
| 7621723 | Electromagnetic pump A pump apparatus that produces a pumping action for a gas or a liquid is produced in an extremely small and slim form and can be favorably used as a cooling pump apparatus for an electronic appliance or the like. There is provided an electromagnetic pump wher... | 11/24/2009 |
| 7355306 | Motor driven blower support system A drive motor is supported and fixed onto a motor support plate composing a support member through vibration proof rubber which damps vibration, the frequency of which is not less than 1 kHz. Due to the foregoing, it becomes difficult for the vibration generated fro... | 04/08/2008 |
| 7269107 | Method of detecting land pre-pit signal and optical disc player The method of the present invention is capable of securely detecting LPP signals. The method comprises the steps of: reading a push-pull signal including a wobble component and LPP components; and slice-shaping the push-pull signal with a slice signal so as to binar... | 09/11/2007 |
| 7205686 | Linear actuator A linear actuator has improved output performance and can be assembled with high precision. The linear actuator includes: a yoke part where yoke components, where a hollow is formed between an outer circumferential surface of a first yoke provided on one side of a r... | 04/17/2007 |
| 7202586 | Electrical contact member There is provided an electrical contact member where wear can be reduced. The electrical contact member is characterized by one or both of conductive metal particles and conductive metal fibers, at least outer circumferential surfaces of which have been modified wit... | 04/10/2007 |
| 7099251 | Method of controlling laser power and optical disk player A method of controlling a laser power of a zone Constant Linear Velocity (CLV) type optical disk player, in which a linear velocity of writing data is accelerated, by stages, toward an outer edge of an optical disk. The method includes changing a laser power for wri... | 08/29/2006 |
| 7091808 | Solenoid A solenoid that has a small body and increased propulsion in a controlled range is provided. The solenoid is characterized by being provided with a bearing 40 formed of a nonmagnetic body, n (where n is a positive integer of zero or above) grooves 5... | 08/15/2006 |
| 7023783 | Method of controlling data writing velocity and optical disk player The method of controlling data writing velocity of an optical disk player is capable of correctly writing data on a nonstandard optical disk as well as a standard optical disk. The method comprises the steps of: analyzing a track pitch of an optical disk on t... | 04/04/2006 |
| 6985949 | Content delivery system allowing licensed member to upload contents to server and to use electronic mail for delivering URL of the contents to recipient The contents delivery system is capable of delivering multimedia contents efficiently, securely, easily and economically. In the contents delivery system, a data transmitter transmits the contents, and the data transmitter is connected to a communication network. A ... | 01/10/2006 |
| 6944108 | Method for controlling the rotation of optical disk based on disk shapes The optical disk player of the present invention is capable of controlling rotational speed of an optical disk, on the basis of a shape of the optical disk, so as to stably and efficiently write data in and read data from the optical disk. The optical disk player co... | 09/13/2005 |
| 6927521 | Commutator and electric rotary device having the same The commutator is capable of reducing contact resistance between the brush and a commutator, improving efficiency of an electric rotary device and restricting exhaustion of the commutator. The commutator comprises: a plurality of commutating pieces having outer face... | 08/09/2005 |
| 6922002 | Motor The compact motor is capable of improving characteristics of torque. In the motor, a stator core includes a main core and a sub-core. The main core is constituted by piling a plurality of first core plates, which respectively have first extended pole sections of the... | 07/26/2005 |
| 6856583 | Optical disk player The optical disk player is capable of correctly restarting to write data. Data protection means returns an optical pick-up from an interruption address to a synchronization starting address. The data protection means reads data from the synchronization starting addr... | 02/15/2005 |
| 6854124 | Disk drive unit with tray being retractable and ejectable from a main body The disk drive unit of the present invention comprises: a main body; a tray including a disk accommodating section in which an optical disk is held, the tray being retracted into and ejected from the main body; and a driving mechanism for driving the tray. The drivi... | 02/08/2005 |
| 6834031 | Method of sampling wobble components and disk drive unit executing the method The method of sampling wobble components of the present invention is capable of realizing a disk drive unit, which can write data at high speed, and reducing manufacturing cost of the disk drive unit. The wobble components are sampled from laser beams reflected from... | 12/21/2004 |
| 6781712 | Apparatus for controlling the rotational speed of the ink fountain roller on the basis of the rate of area of the picture The image printing system is capable of properly defining amount of ink without adjusting ink clearance. The image printing system includes an offset printing machine, in which proper amount of ink is supplied to a plate drum via an ink fountain roller on the basis ... | 08/24/2004 |
| 6772423 | Disk drive unit for facilitating the ejection and retraction of a tray with respect to a main body In the disk drive unit of the present invention, an eject button for ejecting and retracting a tray can be easily pushed while the tray is ejected, and the tray can be ejected and retracted by same action. The disk drive unit comprises: a main body; a tray for holdi... | 08/03/2004 |
| 6570836 | Disk clamping mechanism In the disk clamping mechanism of the present invention, a turntable has a columnar section capable of fitting a disk-shaped medium and a circular supporting section capable of supporting the disk-shaped medium. A damper has a circular pressing section an... | 05/27/2003 |
| 6501709 | Read error reduction system for a disk player The disk player is capable of preventing a shift of an object lens in an optical pickup and a poor action caused by the shift. In the disk player, a first servo mechanism drives a motor, which moves an optical pickup in a radial direction of a disk. A sec... | 12/31/2002 |
| 6026067 | Method and apparatus for reproducing audio signals at various speeds by dividing original audio signals into a sequence of frames based on zero-cross points In a method of reproducing audio signals of the present invention, audio reproducing speed can be changed without changing tone and quality of audio signals. Audio signals are filtered to extract basic audio signals. Zero-cross points in the basic audio s... | 02/15/2000 |
| 5769642 | Audio-book player An audio-book player includes a member capable of indicating to a blind person that a recording medium is loaded in or unloaded from the body proper. The audio-book player, which reproduces written data recorded on a recording medium as voice, includes a ... | 06/23/1998 |
| 5687144 | Audio player for reproducing writing data as audio signals An object of the present invention is to provide an audio player, which is capable of efficiently retrieving writing data of groups of sentences and noticing the present writing data by audio signals. In the audio player, a control section reads a plurali... | 11/11/1997 |
| 5506826 | Life span detector for a laser diode and a compact disk player having the same In a life span detector of the present invention, a current detecting circuit detects current intensity through a laser diode. The current detecting circuits is provided between an electric source and the laser diode. A comparing circuit compares the curr... | 04/09/1996 |
| 5481520 | Disk player door assembly A disk player, which is capable of making a casing smaller and preventing dust from entering into the casing. The disk player includes a casing having an opening section, through which a disk cartridge is inserted and taken out, in a front face; a door me... | 01/02/1996 |
| 5420842 | Disk player for changing the playing linear velocity in multiple stages The object of the present invention is to provide a disk player, which is capable of changing the playing linear velocity by multiple stages to shorten the reading time. The disk player comprises includes an optical pick-up for reading data and outputting... | 05/30/1995 |
| 5414685 | Disk player with constant angular velocity An object of the invention is to provide a disk player, which is capable of accessing to a disk in a short time, having higher durability and lower electric power consumption. The disk player comprising: a motor for rotating a disk; an optical pick-up for... | 05/09/1995 |
| 4988904 | Voice coil motor with an encoder The present invention relates to a voice coil motor with an encoder. In a voice coil motor whose rotor rotates in a prescribed angular width to a base, a rotary disc for encoding is attached to the fringe section of the rotor, and an encoder is provided o... | 01/29/1991 |
| 4528473 | Permanent magnet type step motor A permanent magnet type step motor comprising a rotor wherein a disc-like permanent magnet having a magnetic pole in an axial direction and a pair of rotor yokes holding the permanent magnet therebetween are integrally and coaxially mounted on a rotationa... | 07/09/1985 |