Patent application number | Description | Published |
20090154325 | OBJECTIVE LENS AND OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE HAVING THE SAME - There is provided an objective lens for information recording/reproducing for three types of optical discs, which includes a first area contributing to converging a third light beam onto a record surface of a third optical disc. The first area includes a phase shift structure having refractive surface zones concentrically formed about a predetermined axis. The phase shift structure includes first and second step groups. The first step group is configured such that an optical path length difference ΔOPD | 06-18-2009 |
20090252021 | MULTIFOCAL OBJECTIVE LENS AND OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE - There is provided a multifocal objective lens used for two types of optical discs. The protective layer thicknesses of first and second optical discs t | 10-08-2009 |
20100124157 | OBJECTIVE LENS AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS - An optical information recording/reproducing apparatus for an optical disc using a light beam having a wavelength of λ including: an objective lens that converges the light beam onto a recording surface of the optical disc and satisfies a condition: | 05-20-2010 |
20100173405 | Double-Stranded Nucleic Acid Molecule Cancer Cell Proliferation Inhibitor and Pharmaceutical Agent Suitable for Prevention or Treatment of Uterine Cancer, Breast Cancer, and Bladder Cancer - A double-stranded nucleic acid molecule for suppressing the expression of at least one of COX7RP and Efp genes which includes (a) a sense strand which includes a nucleotide sequence corresponding to a target sequence indicated by any one of SEQ ID Nos.: 1 to 38 and (b) an antisense strand which includes a nucleotide sequence complementary to that of the sense strand specified in (a); a cancer cell proliferation inhibitor with the double-stranded nucleic acid molecule and against at least one of uterine, breast and bladder cancer cells; and a pharmaceutical agent with the cancer cell proliferation inhibitor and against at least one of uterine, breast and bladder cancers. | 07-08-2010 |
20100209818 | EJECTOR AND FUEL CELL SYSTEM USING THE SAME - An ejector comprises a body, a nozzle, a needle, a diffuser which draws in a second fluid using negative pressure caused by ejection of a first fluid from the nozzle and mixes the first and second fluids together, first and second diaphragms which allows the nozzle to shift in an axial direction with respect to the needle, and a first fluid chamber which is supplied with the first fluid. A valve in which a valve body contacts and separates from a valve seat according to the shifting action of the nozzle is formed by providing either the nozzle or the needle with the valve body and providing the other with the valve seat in the first fluid chamber. A back pressure chamber connecting to the first fluid chamber via the valve is provided between a trunk portion of the nozzle and a basal part of the needle. | 08-19-2010 |
20100209819 | EJECTOR AND FUEL CELL SYSTEM USING THE SAME - An ejector and a fuel cell system using the ejector which can improve a control of an ejection pressure of a fluid. | 08-19-2010 |
20110075541 | OPTICAL INFORMATION RECORDING/REPRODUCING OPTICAL SYSTEM AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS - An optical information recording/reproducing optical system where resin material has Tg>115° C., first, second and third films are on an optical disc side of an objective lens and surfaces of an optical element, respectively, a light source side of the objective lens has a fourth film having four or more layers not containing Ti, each of the first, second and third films includes a non-high refractive index layer made of one of silicon oxide, aluminum oxide, aluminum fluoride and magnesium fluoride or a mixture of at least two of them, each of the first, second and third films is not made of one of Ti, Ta, Hf, Zr, Nb, Mo and Cr, a layer of the fourth film closest to a base material is the non-high refractive index layer. The fourth film satisfies 350<λ | 03-31-2011 |
20110075542 | OPTICAL INFORMATION RECORDING/REPRODUCING OPTICAL SYSTEM AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS - An optical information recording/reproducing optical system, comprising a light source; an optical element converting a laser beam into a substantially collimated beam; and an objective lens, wherein a wavelength λ (unit: nm) of the laser beam falls within a range of 400<λ<410, the optical element and the objective lens are made of same resin materials or different resin materials having a glass transition temperature of Tg>115° C., each of optical surfaces is configured not to have an optical thin film which contains at least one of or elements of titanium, tantalum, hafnium, zirconium, niobium, molybdenum and chromium, each of optical surfaces of the optical element is provided with an antireflection film made of one of or a mixture of at least two of silicon oxide, aluminum oxide, aluminum fluoride and magnesium fluoride, and a following condition is satisfied. | 03-31-2011 |
20110103207 | OPTICAL SYSTEM OF OPTICAL PICK-UP AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS - An optical system of an optical pick-up including a resin coupling lens and a resin objective lens with NA larger than 0.8, wherein, magnification β satisfies a condition: −0.13<β<−0.08, a focal length f of the objective lens satisfies a condition: 1.1505-05-2011 | |
20110103217 | OPTICAL INFORMATION RECORDING/REPRODUCING OPTICAL SYSTEM AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS - An objective lens for an optical information recording/reproducing optical system for an optical disc letting a laser beam impinge on a recording layer of the optical disc, and wherein a center wavelength λ (unit: nm) of the laser beam is in a range defined by a condition: 390≦λ≦420, a base material of the objective lens is made of resin, the resin has a glass transition temperature Tg and light transmissivity T (unit: %) per a path length of 3 mm at a wavelength of 406 nm defined by conditions: Tg≧115° C., 85≦T≦90, same antireflection films or different types of antireflection films are respectively formed on optical surfaces of the objective lens, and each of the antireflection films formed on the objective lens has a thickness of 100 nm or more in a vicinity of an optical axis of the objective lens. | 05-05-2011 |
20110149712 | OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS AND OBJECTIVE LENS FOR THE SAME - An objective lens including: a first region to respectively converge first and second light beams onto recording surfaces of first and second optical discs; and a second region located outside of the first region and configured to converge the first light beam onto the recording surface of the first optical disc and not to converge the second light beam onto the recording surface of each of the first and second optical discs, and wherein the first region is divided into a plurality of refractive surface zones concentrically formed about an optical axis and has a first step, a diffraction order at which a diffraction efficiency is maximized for each of the first and second light beams passing through the first step in the first region is a first order, and the objective lens satisfies a condition: | 06-23-2011 |
20110235496 | OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS AND OBJECTIVE LENS FOR THE SAME - An objective lens for an optical information recording/reproducing apparatus, at least one of optical surfaces of the objective lens comprising a diffraction surface having a diffraction structure defined by an optical path difference function, and wherein: the diffraction surface has a first region contributing to converging first and second light beams and having a diffraction structure configured such that diffraction orders at which the diffraction efficiencies are maximized for the first and second light beams are 1 | 09-29-2011 |
20110280115 | TILT ANGLE ADJUSTMENT METHOD FOR OBJECTIVE LENS AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS - A method for adjusting a tilt angle of an objective lens with respect to one of a multilayer optical disc having a plurality of recording layers and an optical axis of an optical information recording/reproducing apparatus, wherein a use wavelength λ and a numerical aperture NA are defined by conditions: 390<λ<420 and 0.7511-17-2011 | |
20120020198 | OBJECTIVE LENS AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS - An optical information recording/reproducing apparatus for an optical disc using a light beam having a wavelength of λ including: an objective lens that converges the light beam onto a recording surface of the optical disc and satisfies a condition: | 01-26-2012 |
20130016598 | OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS AND OBJECTIVE OPTICAL SYSTEM FOR THE SAMEAANM YAMAGATA; NaokiAACI TokyoAACO JPAAGP YAMAGATA; Naoki Tokyo JPAANM INOUE; SatoshiAACI SaitamaAACO JPAAGP INOUE; Satoshi Saitama JPAANM TAKEUCHI; ShuichiAACI SaitamaAACO JPAAGP TAKEUCHI; Shuichi Saitama JP - An objective optical system for an optical information recording/reproducing apparatus, at least one surface of the objective optical system being configured to be a phase shift surface having a phase shift structure, wherein: the phase shift surface has a first area contributing to converging first, second and third light beams onto recording surfaces of first, second and third optical discs, respectively; in the first area, the phase shift surface has at least two types of phase shift structures including a first phase shift structure having first steps and a second phase shift structure having second steps; the phase shift surface has a plurality of combinations of annular zones which satisfy a condition: | 01-17-2013 |
20130095397 | Ejector - A fuel cell system includes a fuel cell and an ejector. The ejector includes a nozzle portion having openings provided at its distal and proximal ends for injecting drive-stream gas; a diffuser portion provided on a distal end side of the nozzle portion for drawing in auxiliary gas by negative pressure which is generated in the drive-stream gas by injection from the nozzle portion so as to join the auxiliary-stream gas together with the drive-stream and discharge the drive-stream gas and the auxiliary gas; a needle slidably inserted into an interior of the nozzle portion in an axial direction of the nozzle portion for adjusting an opening area of the nozzle portion in accordance with an inserted position thereof; a drive unit for moving the needle axially; and an auxiliary stream gas introducing portion including at least two openings for introducing the auxiliary-stream gas into the diffuser portion therefrom. | 04-18-2013 |
20140350073 | DOUBLE-STRANDED NUCLEIC ACID MOLECULE, CANCER CELL PROLIFERATION INHIBITOR AND PHARMACEUTICAL AGENT SUITABLE FOR PREVENTION OR TREATMENT OF CANCER - A double-stranded nucleic acid molecule including (a) a sense strand which includes a nucleotide sequence corresponding to a target sequence indicated by any one of SEQ ID Nos.: 1 to 21, and (b) an antisense strand which includes a nucleotide sequence complementary to that of the sense strand specified in (a), wherein the double-stranded nucleic acid molecule is for suppressing the expression of at least one of APP and EBAG9 genes. | 11-27-2014 |