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| Number | Title | Issue Date |
| 7855940 | Pickup lens with phase compensator and optical pickup apparatus using the same A pickup lens with a phase compensator is composed of a condenser lens and a phase compensator. At least one surface of the condenser lens has a step-like annular zone structure to compensate wavefront aberration generated when recording and reproducing data on an i... | 12/21/2010 |
| 7733578 | Objective lens design method, lens, and optical system, optical head, and optical disc apparatus using the same When the DVD provided with the DVD substrate 2 having thickness t2 of 0.6 mm is installed in the optical disc apparatus, the light beam 4 having wavelength λ1=655 nm is used as luminous flux of numerical aperture NA=0.63 to be co... | 06/08/2010 |
| 7619836 | Imaging lens unit An imaging lens unit comprising, in order from the object side, a first lens having a meniscus shape with its convex surface on the object side, an aperture stop and a second lens having a meniscus shape with its convex surface on the image side. A maximal value of ... | 11/17/2009 |
| 7586815 | Pickup lens with phase compensator and optical pickup apparatus using the same A pickup lens with a phase compensator is composed of a condenser lens and a phase compensator. At least one surface of the condenser lens has a step-like annular zone structure to compensate wavefront aberration generated when recording and reproducing data on an i... | 09/08/2009 |
| 7457052 | Light shield sheet, optical apparatus, and method of manufacturing light shield sheet A light shield sheet has an aperture that restricts a range of light transmission. In the light shield sheet, the thickness of the inner circumference in the periphery of the aperture is smaller than the thickness of the outer circumference. ... | 11/25/2008 |
| 7446958 | Imaging lens unit An imaging lens unit comprising, in order from the object side, a first lens having a meniscus shape with its convex surface on the object side, an aperture stop and a second lens having a meniscus shape with its convex surface on the image side. A maximal value of ... | 11/04/2008 |
| 7414796 | Objective lens design method, lens, and optical system, optical head, and optical disc apparatus using the same When the DVD provided with the DVD substrate 2 having thickness t2 of 0.6 mm is installed in the optical disc apparatus, the light beam 4 having wavelength λ1=655 nm is used as luminous flux of numerical aperture NA=0.63 to be co... | 08/19/2008 |
| 7411743 | Multi-wavelength lens, and optical system, optical head and optical disc apparatus using the lens The multi-wavelength lens for condensing a plurality of kinds of monochromatic light by refraction is disclosed. The lens comprises a common use area for all monochromatic light on at least one lens surface, the area sectioned into a plurality of aspherical zones ea... | 08/12/2008 |
| 7393884 | Pigment ink composition A pigmented ink composition comprising a pigment, a resin having an acidic group and an organic solvent having a boiling point of at least 150° C. which is present in an amount of from 50 to 90% by weight based on the whole weight of the ink composition. When this ... | 07/01/2008 |
| 7374101 | Adapter panel, electronic equipment, and cable connector identification system An adapter panel has an adapter where a connector including a wireless IC tag in a side surface is inserted or removed. The adapter panel includes a booster antenna placed in a position facing the wireless IC tag of the adapter when the connector is inserted to the ... | 05/20/2008 |
| 7332245 | Electrode for electrochemical devices and battery using the same An electrode according to the present invention employs the metal plate having the specified structure as the electrode substrate. The metal plate 51 has a plurality of protuberances 54 that are alternately protruded on both front and back sides thereo... | 02/19/2008 |
| 7327266 | Non-contact communication system information carrier A contactless communication system information carrier which is high in handleability and yield but low in cost is provided. It includes a core piece 11 in which an IC chip 1 with an antenna coil 3 integrally formed on one surface is fitted insi... | 02/05/2008 |
| 7316862 | Active material for electrode and non-aqueous secondary battery using the same A lithium-containing complex oxide represented by General Formula: Li1+x+αNi(1−x−y+δ)/2Mn(1−x−y−δ)/2MyO2 (where 0≦x≦0.15, −0.05≦x+α≦0.2, 0≦y≦0.4; −0.1≦δ≦0.1 (when 0≦y≦0.2) ... | 01/08/2008 |
| 7312528 | Semiconductor device having antenna connection electrodes A semiconductor device includes first and second antenna connection electrodes placed on the periphery of a semiconductor chip, an on-chip antenna connection electrode placed in the inner area of the semiconductor chip compared to the first and second antenna connec... | 12/25/2007 |
| 7291409 | Magnetic recording medium using magnetic powder having a core portion and an outer layer portion including a rare earth element and magnetic recording cassette A magnetic recording medium comprising a non-magnetic support, at least one primer layer formed on one surface of the non-magnetic support, comprising a non-magnetic powder and a binder resin, at least one magnetic layer formed on the primer layer, comprising a magn... | 11/06/2007 |
| 7287715 | Magnetic tape cartridge A tape cartridge capable of reliably identifying difference in type among tape cartridges without causing a tape drive side to have increased costs is provided. On the outer surface of a main case, an identification indicator is formed in a stripe shape having a gra... | 10/30/2007 |
| 7282303 | Non-aqueous secondary battery and portable equipment using the same A non-aqueous secondary battery is provided, which has excellent overcharging safety, less generation of gas during storage at a high temperature, and can ensure storage reliability. A non-aqueous secondary battery includes a positive electrode, a negative el... | 10/16/2007 |
| 7267896 | Magnetic tape and magnetic tape cartridge A magnetic recording medium comprising a non-magnetic support; at least one lower magnetic layer containing magnetic powder and a binder resin, which is formed on one side of the non-magnetic support with or without a non-magnetic primer layer interposed between the... | 09/11/2007 |
| 7245469 | DC backup power supply device and method for diagnosing the same A reliable uninterruptible DC power supply device. The DC backup power supply device includes an AC/DC converter, a DC/DC converter, voltage step-up/down choppers and a battery connected to a DC path of a main circuit connected with a load via a switch, and a microc... | 07/17/2007 |
| 7238439 | Magnetic recording medium containing particles with a core containing a FeNphase A magnetic recording medium comprising a nonmagnetic support and a magnetic layer formed on the support and containing a magnetic powder and a binder, wherein said magnetic powder comprises substantially spherical or ellipsoidal particles and at least one element se... | 07/03/2007 |
| 7236447 | Optical disk, method of playing optical disk, and optical disk drive An optical disk includes a recording region formed on a substrate for recording user data, and a management region formed on the substrate which includes an identification information region for recording disk-specific identification information such as address info... | 06/26/2007 |
| 7211207 | Injection molding method with surface modification A molded article includes thermoplastic resin, and an organic material different from the thermoplastic resin inside said molded article, the organic material being located on and near a surface of said molded article. ... | 05/01/2007 |
| 7205671 | Semiconductor device A semiconductor device has peripheral electrode pads formed on the periphery of a semiconductor chip, land pads comprising the first land pads and the second land pads formed on the semiconductor chip, and circuits formed in the semiconductor chip. The peripheral el... | 04/17/2007 |
| 7192670 | Fuel cell and membrane electrode assembly A fuel cell has an anode, a cathode, and a polymer electrolyte membrane placed between the anode and the cathode. The anode includes a catalyst which is composed of binary or ternary particulates deposited on a carbon support. The particulate is represented by a gen... | 03/20/2007 |
| 7193961 | Optical information-recording medium and method for producing the same An optical information-recording medium has a plurality of lands and grooves formed on a substrate. In-groove pits are formed at the bottom of a part of the grooves. The widths of the in-groove pits in the radial direction of the substrate are suppressed from being ... | 03/20/2007 |
| 7172833 | Alkaline dry cell The present invention discloses an alkaline dry cell with a high capacity having a superior liquid leak resistant property. In this alkaline dry cell, the thickness of the trunk portion of an external can is made thinner than 0.18 mm, and the thickness of the sealin... | 02/06/2007 |
| 7157810 | Backup power supply The present invention reduces the capacity of the AC-DC converter for the peak load and realizes low price and reduction in the volume of the power unit. The apparatus built-in backup power supply has the peak cut function for sharing a part of the load current at t... | 01/02/2007 |
| 7154842 | Optical reproducing method for optical medium with aligned prepit portion A recording apparatus for recording information to an optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction, which prepit portion includes first and second prepit portions divided in a track direction. A p... | 12/26/2006 |
| 7151721 | Optical recording method using land/groove recording An optical reproducing apparatus for reproducing information on a medium includes a light source, an optical system for irradiating a light beam generated by the light source on the medium, a detector for detecting a reflected light from the medium; and a reproducer... | 12/19/2006 |
| 7112388 | Battery provided with terminals An electrical apparatus for attaching a battery to a printed circuit board which includes a battery body containing terminals, a portion of each of said terminal defining a fixing portion, a circuit board containing conductive portions and at least one through hole ... | 09/26/2006 |
| 7113453 | Method for recording and reproduction on a magneto-optical recording medium A magneto-optical recording medium and a method for recording and reproduction thereon are provided in order to reproduce information recorded by multi-valued recording at a high S/N ratio. Disclosed is a magneto-optical recording medium including two magnetic layer... | 09/26/2006 |
| 7103899 | Disk cartridge which accommodates an information-recording disk A disk cartridge, which is compact, which requires a small number of parts, and which is easily assembled, is provided. The disk cartridge of the present invention comprises an upper case and a lower case. Each of the upper case and the lower case is formed to be su... | 09/05/2006 |
| 7092349 | Optical reproducing method optical medium with aligned prepit portion A recording method for an optical recording medium having grooves and lands alternately provided in a radial direction and having information recording areas formed thereon, and at least one prepit region where a groove is not formed. In the prepit region, first and... | 08/15/2006 |
| 7092350 | Optical reproducing method for optical medium with aligned prepit portion A reproducing method for reproducing information from an optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction, the prepit portion including first and second prepit portions divided in a track direction an... | 08/15/2006 |
| 7088652 | Optical recording apparatus An optical recording apparatus having a light source and an optical system. The medium is a substrate in the form of a substantially circular disk with grooves and lands alternately formed on the substrate in a radial direction. The grooves and lands both serve as r... | 08/08/2006 |
| 7085222 | Optical reproducing method for optical medium with aligned prepit portion A reproducing method for reproducing information recorded on an optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction, the prepit portion including first and second prepit portions divided in a track direc... | 08/01/2006 |
| 7082098 | Optical reproducing method for optical medium with aligned prepit portion A recording method for an optical medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction, the prepit portion including a first and a second prepit portion divided in a track direction with respective first and second prepit ... | 07/25/2006 |
| 7079478 | Optical reproducing method for optical medium with aligned prepit portion A recording apparatus for recording information to an optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction, the prepit portion including first and second prepit portions divided in a track direction and a... | 07/18/2006 |
| 7072288 | Optical reproducing method for optical medium with aligned prepit portion A recording apparatus for recording information to an optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction, the prepit portion including first and second prepit portions divided in a track direction, and ... | 07/04/2006 |
| 7072287 | Optical reproducing method for optical medium with aligned prepit portion A reproduction apparatus for reproducing information recorded on an optical medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction, the prepit portion including first and second prepit portions divided in a track direction, ... | 07/04/2006 |
