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Akira Sakai

Akira Sakai, Aichi-Ken JP

Patent application numberDescriptionPublished
20110006593BRAKE CONTROL APPARATUS - In a brake control apparatus (01-13-2011

Akira Sakai, Kawasaki JP

Patent application numberDescriptionPublished
20100318949COMPUTER PRODUCT, DESIGN SUPPORT APPARATUS, AND DESIGN SUPPORT METHOD - A non-transitory computer-readable recording medium stores therein a design support program that causes a computer capable of accessing a database, which stores therein respective starting point and ending point coordinates of line segments included in a wiring path of a circuit-under-test, to execute a process that includes dividing a layout area of the circuit-under-test, by a predetermined width, into a grid pattern to divide the layout area into plural mesh areas, using a predetermined coordinate within the layout area as an origin coordinate; determining whether a line segment selected from among the line segments in the database passes through a vertex of a mesh area obtained at the dividing; and outputting a determination result obtained at the determining.12-16-2010

Akira Sakai, Kashiwa-Shi JP

Patent application numberDescriptionPublished
20100243132MANUFACTURING METHOD OF LIQUID CRYSTAL PANEL AND SURFACE TREATMENT METHOD OF ALIGNMENT FILM - In order to improve the state of image irregularities of a liquid crystal panel, a plasma treatment is performed for an alignment film using a treatment gas such as hydrogen and/or deuterium, or a surface treatment is performed in which an alignment film is immersed in deuterium oxide. As a result, moisture contained in the alignment film is removed, and re-adsorption of moisture is also suppressed, thereby reducing image irregularities.09-30-2010

Akira Sakai, Kawasaki-Shi JP

Patent application numberDescriptionPublished
20090109387LIQUID CRYSTAL OPTICAL DEVICE MANUFACTURING PROCESS - A manufacturing method of a liquid crystal optical device is provided including an alignment film forming step of forming an alignment film containing silicon oxide on a substrate, and a liquid crystal cell forming step of disposing a pair of substrates at least one of which the alignment film has been formed on, opposite to each other interposing a liquid crystal therebetween. In the alignment film forming step, the substrate surface is bombarded with a plasma beam generated by vacuum arc discharge using a cathode containing silicon, where the substrate is disposed on the course of the plasma beam obliquely with an angle. When the plasma beam bombards the substrate surface, plasma ions in the plasma beam have higher kinetic energy or higher flux density than plasma ions in a plasma beam which, if bombarding the substrate obliquely at the angle, form a film having a column structure.04-30-2009
20090257013LIQUID CRYSTAL DEVICE AND METHOD OF MANUFACTURING THE SAME - A liquid crystal device has a pair of substrates, an alignment film formed at least on one of the pair of substrates and liquid crystal showing an orientation defined by the alignment film. The alignment film is a carbon film having a cross-sectional structure inclined relative to the direction of the film thickness by a constant angle.10-15-2009
20090324845METHOD FOR PRODUCING ORIENTATION FILM - A method for producing an orientation film that causes orientation of a liquid crystal includes a process of vapor depositing an inorganic oxide from an oblique direction on a substrate and forming an obliquely vapor-deposited film composed of a plurality of columnar structural bodies tilted at an angle equal to or greater than 20° from a substrate normal and a process of performing ion beam irradiation onto the plurality of columnar structural bodies constituting the obliquely vapor-deposited film. An ion beam irradiation direction in the ion beam irradiation process is in a plane including a vapor deposition direction of the inorganic oxide and the substrate normal and an angle of the ion beam irradiation direction θ12-31-2009
20100007831LIQUID CRYSTAL APPARATUS AND METHOD OF PRODUCING THE SAME - Provided is a liquid crystal apparatus that includes a display region in which electrodes are disposed in a matrix pattern and a non-display region provided at a periphery of the display region and has a liquid crystal disposed in the display region and non-display region, wherein the liquid crystal disposed in the display region is splay-aligned when a voltage is not applied and bend-aligned when the voltage is applied, the liquid crystal disposed in the non-display region is bend-aligned, an alignment film including an inorganic material is provided in at least one of a pair of substrates, and a thickness of the alignment film provided in the display region is smaller than a thickness of the alignment film provided in the non-display region.01-14-2010
20100181013FILM FORMING METHOD AND PRODUCTION PROCESS OF LIQUID CRYSTAL DISPLAY DEVICE - A method of forming a film on a substrate is constituted by a step of depositing a material vaporized from an evaporation source onto a surface of a substrate while inclining the surface of the substrate with respect to a direction from the evaporation source to the substrate, and a step of providing the surface of the substrate with an energy depending on a deposition angle.07-22-2010
20100219064FILM FORMING METHOD - A film forming method is constituted by forming a silicon oxide film on a substrate by causing silicon generated by sputtering with silicon as a target to be incident on the substrate from an oblique direction while supplying oxygen gas onto the substrate.09-02-2010

Patent applications by Akira Sakai, Kawasaki-Shi JP

Akira Sakai, Kyoto JP

Patent application numberDescriptionPublished
20090096970COMPLEX BIREFRINGENT MEDIUM, POLARIZING AGENT, AND LIQUID CRYSTAL DEVICE - The present invention provides a complex birefringent medium, which has the so-called inverse wavelength dispersibility, that is, a wavelength dispersibility capable of giving an optimum phase difference to a light of a wide visible wavelength range, has a wide viewing angle, can be produced by a convenient method and is excellent in a degree of adjusting freedom of inverse wavelength dispersibility and in mass productivity, a polarizing plate and a liquid crystal display device. The complex birefringent medium of the present invention is a complex birefringent medium having a structure in which a plurality of birefringent layers are laminated, wherein in the complex birefringent medium, a phase difference exhibits inverse wavelength dispersibility as the whole of the complex birefringent medium, and wherein when a principal refractive index having the maximum absolute value of a difference from an average value of three principal refractive indexes at a wavelength λ (nm) is designated as a first principal refractive index n1(λ), a normal line of the birefringent layer and a principal axis corresponding to the first principal refractive index n1(550) of the birefringent layer are in the same plane.04-16-2009
20090161045Method of Compensating Wavelength Dependence of Birefringence of Optical Part, Optical Part, and Display Obtained with these - The present invention is to provide a method of compensating the wavelength dependence of birefringence of an optical part (B) which comprises using a film (a) made of a (co)polymer (α) obtained from at least one olefin selected among 4-methyl-1-pentene, 3-methyl-1-pentene, and 3-methyl-1-butene as a (co)monomer ingredient.06-25-2009
20100171906POLARIZATION CONTROL SYSTEM AND DISPLAY DEVICE - The present invention provides a polarization control system which includes an E-type polarizer and therefore can provide excellent dark state at a wide azimuth and viewing angle. Further, the polarization control system includes a viewing angle control element for controlling a traveling direction of light which has passed through the E-type polarizer and therefore can provide excellent bright state at a wide azimuth and viewing angle. The present invention further provides a display device including such a polarization control system. The polarization control system of the present invention is a polarization control system including a plurality of polarizer, wherein the polarization control system includes an E-type polarizer and a viewing angle control element, and the viewing angle control element controls a traveling direction of light which has passed through the E-type polarizer.07-08-2010
20110199560RETARDATION FILM, POLARIZING FILM, LIQUID CRYSTAL DISPLAY, AND METHOD OF DESIGNING RETARDATION FILM - To provide a retardation film in which the retardation condition is adjusted to achieve a liquid crystal display without coloration over a wide viewing angle range and having a high contrast ratio, and a method of designing the same, as well as a polarizing film and a liquid crystal display using the same. A liquid crystal display comprising a liquid crystal cell and polarizing films in a Cross-Nicol relationship with each other on both sides of the liquid crystal cell; wherein at least one polarizing film includes a retardation film having reverse wavelength dispersion property; and the liquid crystal display further includes a retardation film having a wavelength dispersion property substantially the same as a liquid crystal layer configuring the liquid crystal cell.08-18-2011

Patent applications by Akira Sakai, Kyoto JP

Akira Sakai, Miyagi-Ken JP

Patent application numberDescriptionPublished
20090244905ILLUMINATION DEVICE AND INPUT DEVICE WITH ILLUMINATION FUNCTION HAVING THE SAME - In an input device with an illumination function including an illumination device having light-emitting diodes, strip-like light-guide plates that distribute light emitted from the light-emitting diodes to the side surfaces other than a light-incident surface, and a planar light-guide plate that is provided with a plurality of through-holes and laterally propagates light incident from the strip-like light-guide plates and emits the light from through-holes, the planar light-guide plate is provided with strip-like light-guide-plate providing grooves at portions where the through-holes are not provided, and the strip-like light-guide plates are provided in the strip-like light-guide-plate providing grooves such that the side surfaces of the strip-like light-guide-plate providing grooves and the side surfaces of the strip-like light-guide plates face each other.10-01-2009

Akira Sakai, Osaka-Shi JP

Patent application numberDescriptionPublished
20110199561Liquid Crystal Display Device - The present invention provides a liquid crystal display device which can ensure visibility and decrease coloring regardless of the direction of the screen, even if the screen is viewed through an optical member having a polarization function, such as polarized sunglasses. In at least one embodiment, a liquid crystal display device includes: a liquid crystal cell; and a first polarizing element disposed at an observation surface side of the liquid crystal cell, and the liquid crystal display device further includes a second polarizing element disposed at the observation surface side of the first polarizing element. It is preferable that the liquid crystal display device further includes a protective plate disposed between the first polarizing element and the second polarizing element.08-18-2011