| FUJI ELECTRIC DEVICE TECHNOLOGY CO.,LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110048628 | METHOD OF MANUFACTURING A DISCRETE TRACK MEDIUM TYPE PERPENDICULAR MAGNETIC RECORDING MEDIUM - A method of manufacturing a discrete track medium type perpendicular magnetic recording layer with reduced magnetic interference between tracks and enhanced magnetic recording density is disclosed in which protruding parts of a pattern of protrusions and recesses provided in a composite magnetic recording layer are formed in high quality having a similar film thickness and equivalent perpendicular magnetic recording performance to a perpendicular magnetic recording layer designed for a continuous film type medium. The method includes a first step of laminating at least a magnetic recording layer, a sacrifice layer, and a carbon protective layer on a nonmagnetic substrate in this order; a second step of selectively removing the resist film and the carbon protective layer at openings for forming recessed parts using a mask of a resist film pattern formed concentric to form protruding parts for constructing recording tracks; a third step of modifying the sacrifice layer and the magnetic recording layer exposing at the recessed parts into a nonmagnetic state; a fourth step of removing the resist film, the carbon protective layer, and the sacrifice layer at the protruding parts between the recessed parts; and a fifth step of depositing a carbon protective layer and a lubricant layer in this order on the recessed parts and the protruding parts. | 03-03-2011 |
| 20100028791 | Electrophotographic Photoconductor and a Method of Manufacturing the Same - An electrophotographic photoconductor that stabilizes electrical performances and prevents generation of image faults such as memories, irrespective of types of organic materials of resin binder and charge transport material, and variation of temperature and humidity of the operation environment. An electrophotographic photoconductor includes at least a photosensitive layer formed over a conductive substrate, wherein the photosensitive layer contains a cyclohexane dimethanol-diaryl ester compound represented by the formula (I): | 02-04-2010 |
| 20090189580 | Drive control apparatus for controlling drive of inductive load and drive control method for controlling the same - A drive control apparatus controls a drive of an inductive load having a current flowing therethrough. The drive control apparatus includes a drive control device for controlling a variation of the current flowing through the inductive load within a certain period by Pulse Width Modulation control so as to come close to a reference current value, and a reference value control device for controlling a fluctuation period of the reference current value and making the fluctuation period of the reference current value longer than that of the current flowing through the inductive load by the Pulse Width Modulation control. | 07-30-2009 |
