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公开(公告)号：JPH09260064A
公开(公告)日：1997-10-03
申请号：JP8721696
申请日：1996-03-15
Applicant: SONY CORP
Inventor： ASAI NOBUTOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a high performance optical element by which resistance of an electrode can be reduced and which has high rectifying performance by forming a conductive layer having a specific shape between a base body and an electrode. SOLUTION: In this optical element 20, an electrode and an organic layer are laminated in this order on a base body 6 (for example, 6: a glass substrate, 5: an ITO transparent electrode, 4: a hole transport layer, 3: a light emitting layer, 2: an electron transport layer and 1: a metallic electrode). A conductive layer 9 having electric conductivity higher than the electrode 5 is arranged between the base body 6 and the electrode 5 as a part of the electrode 5 by contacting with the electrode 5, and a side surface 9a is inclined to the base body 6 side so that a layer thickness on the side surface 9a of this conductive layer 9 reduces over to the base body 6 side. It is desirable that an inclination θof the side surface 9a of the conductive layer 9 is 12 to 22 degrees.
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公开(公告)号：JPH08337409A
公开(公告)日：1996-12-24
申请号：JP16799295
申请日：1995-06-09
Inventor： MATSUZAWA NOBUYUKI , DEBITSUDO EI DEIKUSON , ATA MASAFUMI , ASAI NOBUTOSHI
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公开(公告)号：JPH08301877A
公开(公告)日：1996-11-19
申请号：JP13730695
申请日：1995-05-10
Applicant: SONY CORP
Inventor： KISHII NORIYUKI , KIJIMA YASUNORI , ATA MASAFUMI , ASAI NOBUTOSHI
Abstract: PURPOSE: To obtain a new zinc multinuclear complex having both high fluorescence and high electron transportability, suitable for making optical elements such as organic EL elements presenting luminescence in high luminance at various chromaticities. CONSTITUTION: This zinc multinuclear complex is expressed by the formula, Zn2 (L -O)m (L O)n (L O 3-m-n Xp (L -L are each a ligand differing from one another; X is an anion; (p) is 0-4). L is e.g. an o-hydroxyphenyl benzoxazole (derivative) of formula I (R -R are each H, a halogen, OH, nitro, carboxyl, etc.), while L is e.g. a 8-hydroxyquinoline (derivative) of formula II [R -R are each H, a halogen, OH, nitro, carboxyl, etc). This complex is obtained by reaction between a zinc salt of the formula, ZnX2 ' (X is an anion) and a compound of the formula, L OH, L OH or L OH in an alcohol.
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公开(公告)号：JPH07296420A
公开(公告)日：1995-11-10
申请号：JP8824594
申请日：1994-04-26
Applicant: SONY CORP
Inventor： IWAMURA TAKASHI , KIJIMA YASUNORI , ASAI NOBUTOSHI
IPC: G11B7/24
Abstract: PURPOSE:To make it possible to store the recording information quantity of about 4 times the present recording information quantity to an optical recording medium of the same size without subjecting the device side to a drastic change, such as shortening of the wavelength of reproducing light, increasing of the numerical aperture NA of a focusing lens and changing of a signal demodulation system. CONSTITUTION:At least a saturable absorbent dyestuff-contg. layer 2 formed by a vacuum thin film forming method and a reflection layer 4 are formed on a light transmissive substrate 1 formed with the recording patterns corresponding to information signals as rugged 1a, 1b shapes. Further, a short-wavelength shift layer 3 which shifts the minimal point of the light reflection spectra of the optical recording medium to a short wavelength side is disposed between the saturable absorbent dyestuff-contg. layer 2 and the reflection layer 4. As a result, the recording patterns inscribed on the substrate 1 are correctly traced on the saturable absorbent dyestuff-contg. layer 2 and the reflection layer 4 and the reflectivity is confined within an adequate rate. Then, the optical recording medium exhibits excellent ultra-definition and good reproduced signals are obtd. from the fine recording patterns formed with micropits at a period shorter than the diffraction threshold lambda/2NA of a reproducing optical system.
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公开(公告)号：JPH0744891A
公开(公告)日：1995-02-14
申请号：JP18839693
申请日：1993-07-29
Applicant: SONY CORP
Inventor： ASAI NOBUTOSHI , YASUDA KOICHI
Abstract: PURPOSE:To provide an optical recording medium which is capable of reproducing information of a high-recording density by recording patterns made finer than the diffraction threshold of reproduced light by ultra-resolution and is greatly increased in the reproduced signals. CONSTITUTION:The optical recording medium having a recording layer provided with recording pits corresponding to information signals on the light transmittable substrate is provided with at least a supersaturation absorptive dye-contg. layer 3 on this substrate 1. The molecular light absorption coefft. epsilonat the wavelength of the reproducing light of the supersatd. absorptive dye is selected at >=10 and the relaxation time tau at 1ns to 100nm. Further, a high- refractive index layer 2 consisting of a material having the refractive index relatively higher than the refractive indices of the materials of the substrate 1 and the saturable absorption dye-contg. layer 3 between the substrate 1 and the supersaturated absorptive dye-contg layer 3.
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Patent Agency Ranking
公开(公告)号：JPH06111727A
公开(公告)日：1994-04-22
申请号：JP25858792
申请日：1992-09-28
Applicant: SONY CORP
Inventor： ASAI NOBUTOSHI
Abstract: PURPOSE:To lower the reflectance of the surface of a phosphor by coating the surface of the phosphor with a light permeative material having almost the same refractive index as the square root of the refractive index of the phosphor. CONSTITUTION:The surface of a phosphor is coated with a coating material which is a mixture of SiO2 with TiO2 or Al2O3. The refractive index of SiO2 is about 1.4 and the refractive index of TiO2 or Al2O3 is larger than that and the refractive index of the mixture can be adjusted to be near 1.55, which is the square root of the refractive index 2.4 of ZnS, a matrix of a blue- or green- emitting phosphor. The thickness of the light permeative coating material is preferably (1+4+m/2).lambda/n' and the reflactance to the outside light is lowered and no reflection condition that the light emitted from the phosphor inside is not absorbed is produced and thus light scattering is prevented. wherein (m) stands for 0 or position integer, lambda for wavelength of visible light, (n') for refractive index of the coating material. As a result, images with high contrast and black color emphasized are obtained.
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公开(公告)号：JPH0641039A
公开(公告)日：1994-02-15
申请号：JP21343092
申请日：1992-07-17
Applicant: SONY CORP
Inventor： ISHIBASHI TADASHI , FUJIWARA ICHIRO , ASAI NOBUTOSHI
IPC: G02F1/35 , C07C245/08 , G02F1/355 , G02F1/361
Abstract: PURPOSE:To obtain a new 4-aminoalkyl-4'-nitroazobenzene useful as an organic nonlinear optical material providing an important key device in an optoelectronic system such as optical communication, optical disks, optical information and optical information processing, etc. CONSTITUTION:The compound is expressed by formula I [(n) is 20 or more], e.g. a compound of formula II. This compound of formula I is obtained by reacting amino group of 4-amino-4'--nitroazobenzene with an alkyl halide (e.g. docosyl bromide). A Y type Langmuir-Blodgett film good as a thin film waveguide can be prepared by using this new compound of formula I. Thereby, an organic nonlinear optical element, especially a wavelength converting element (second harmonic generation) and an optical modulator using the secondary nonlinear optical effects and an optical switch using the tertiary nonlinear optical effects can be realized.
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公开(公告)号：JPH0573958A
公开(公告)日：1993-03-26
申请号：JP23501191
申请日：1991-09-13
Applicant: SONY CORP
Inventor： ASAI NOBUTOSHI , IWAMURA TAKASHI
Abstract: PURPOSE:To obtain the tape-shaped optical recording medium which can form high-quality pits for pit edge recording with a laser beam of a specified power. CONSTITUTION:A protective film 3 consisting of a fluorine polymer and having 200+ or -20nm film thickness is formed on the recording layer 2 of the optical recording medium which is constituted by forming the recording layer 2 to allow optical recording and/or reproducing of information on a flexible substrate 1 and subjecting this recording layer 2 to pit edge recording.
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公开(公告)号：JPH0554820A
公开(公告)日：1993-03-05
申请号：JP24274991
申请日：1991-08-28
Applicant: SONY CORP
Inventor： ASAI NOBUTOSHI
IPC: H01J29/18
Abstract: PURPOSE:To enhance the contrast of a fluorescent screen by restraining scattering of external surrounding light at the fluorescent screen. CONSTITUTION:On a glass panel 1 where carbon stripes 2 are formed at a predetermined pitch in advance, a phosphor layer 4 made of phosphor particles 3 is formed at the portion of the panel 1 where on carbon stripe 2 is formed. The phosphor layer 4 is obtained when a coat of a phosphor slurry wherein the phosphor particles 3 are dispersed is exposed and developed using an aperture grill as an optical mask. Voids in the phosphor layer 4 (voids among the phosphor particles 3 and the void between the phosphor layer 4 and the glass panel 1) are filled with a medium 5 the refractive index of which is close to that of phosphor particles 3 (normally 2.3 to 2.4). An inorganic coating agent wherein an inorganic material whose refractive index is greater than 1 is dispersed is used as such a medium 5.
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公开(公告)号：JPH02262139A
公开(公告)日：1990-10-24
申请号：JP8369489
申请日：1989-03-31
Applicant: SONY CORP
Inventor： KISHII NORIYUKI , TAMURA SHINICHIRO , ASAI NOBUTOSHI
Abstract: PURPOSE:To obtain a wavelength multiple recording material high in modulation degree and recording saturation point by using a coproporpyrin derivatives as a photosensitive material. CONSTITUTION:The photosensitive material composed of the coproporphyrin derivatives, embodied by the tetraalkoxycarbonyl-ethylcoproporphyrin, represented by one of formulae I - IV, (coproporphyrin esters I - IV) is uniformly dispersed into an optical transparent dispersion medium, thus permitting the obtained wavelength multiple recording material to be high in the modulation degree and the recording saturation point. The coproporphyrin derivatives has 4 kinds of isomers due to the positions substituted by methyl and alkyl propionate groups and is obtd. by carrying out alkylesterification of the terminal of the propyronyl group.
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