公开(公告)号：DE602005010287D1

公开(公告)日：2008-11-20

申请号：DE602005010287

申请日：2005-08-12

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： USHIRO TOSHIHIKO ,  ODA KAZUHIKO ,  MATSUURA TAKASHI

IPC: G02F1/1335 ,  G02B5/18

Abstract: A transmission-type display panel according to the present invention includes a plurality of transparency control regions arranged in an array, a non-transparent border region existing around each of the transparency control regions, and a microlens array including a plurality of microlenses arranged in an array so as to correspond to the plurality of transparency control regions. Each of the microlenses serves to converge incident light, which is about to advance straight to the non-transparent border region, into corresponding one of the transparency control regions. The microlens array is formed by use of a transparent diamond-like carbon (DLC) film. The DLC film includes a region having its refractive index modulated corresponding to each of the microlenses, and produces a light convergence effect when light flux passes through the region having its refractive index modulated. By applying the microlens array in the DLC film to a transmission-type display panel (e.g., a liquid crystal display panel), it is possible to provide a transmission-type display panel having improved display brightness, in a simple manner and at a low cost.

公开(公告)号：DE602004009629T2

公开(公告)日：2008-09-11

申请号：DE602004009629

申请日：2004-03-12

Applicant: UNIV KYOTO ,  SUMITOMO ELECTRIC INDUSTRIES

Inventor： NODA SUSUMU ,  AKAHANE YOSHIHIRO ,  MATSUURA TAKASHI

IPC: G02B6/12 ,  G02B6/293 ,  G02B6/122 ,  G02B6/34

Abstract: The channel add/drop filter includes first and second 2D photonic crystals, and the first 2D photonic crystal includes a first waveguide and a first cavity, with the first cavity acting to take in light of a specific wavelength from the first waveguide and radiate it outside the first photonic crystal, and the second 2D photonic crystal includes a second waveguide with substantially the same characteristics as the first waveguide and a second cavity with substantially the same characteristics as the first cavity. The first and second waveguides are optically connected so that when the principal plane of the first 2D photonic crystal and the electric-field vector of the light within the first waveguide form an arbitrary angle a, the principal plane of the second 2D photonic crystal and the electric-field vector of the light within the second waveguide form an angle of alpha + ( pi /2).

公开(公告)号：CA2574378A1

公开(公告)日：2006-02-02

申请号：CA2574378

申请日：2005-06-06

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： MATSUURA TAKASHI ,  ODA KAZUHIKO ,  USHIRO TOSHIHIKO

IPC: G03H1/02 ,  G11B7/0065 ,  G11B7/24 ,  G11B7/26

Abstract: To provide an optical information-recording medium that can easily record information at high density and has excellent durability at low cost. The optical information-recording medium includes a diamond-like carbon (DLC) layer (2) deposited on a substrate (1), in which information is recorded on the optical information-recording medium by irradiating recording spot regions selected from a plurality of recording spot regions with an energy beam (5) to increase the refractive index of the DLC layer (2) in the irradiated recording spot regions.

公开(公告)号：CA2549533A1

公开(公告)日：2005-07-07

申请号：CA2549533

申请日：2004-11-22

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： MATSUURA TAKASHI ,  OKUBO SOICHIRO ,  ODA KAZUHIKO ,  USHIRO TOSHIHIKO

IPC: G02B3/00 ,  G02B1/02 ,  G02B3/08 ,  G02B5/18

Abstract: A flat sheet type micro-lens being mechanically and thermally stable and usable in various optical fields is provided simply and at low costs. The micro-lens is formed by using a translucent DLC film (41), characterized in that the film (41) includes a refractive-index-modulated region (Rmn), and a condensing action occurs when a light flux passes through the refractive-ind ex- modulated region.

公开(公告)号：CA2459660A1

公开(公告)日：2004-09-17

申请号：CA2459660

申请日：2004-03-04

Applicant: SUMITOMO ELECTRIC INDUSTRIES ,  UNIV KYOTO

Inventor： NODA SUSUMU ,  AKAHANE YOSHIHIRO ,  MATSUURA TAKASHI

IPC: G02B6/12 ,  G02B6/122 ,  G02B6/34 ,  H01S5/026 ,  H04J14/02 ,  H01S5/06

Abstract: The channel add/drop filter includes first and second 2D photonic crystals, and the first 2D photonic crystal includes a first waveguide and a first cavity, with the first cavity acting to take in light of a specific wavelength from the first waveguide and radiate it outside the first photonic crystal, and the second 2D photonic crystal includes a second waveguide with substantially the same characteristics as the first waveguide and a second cavity with substantially the same characteristics as the first cavity. The first and second waveguides are optically connected so that when the principal plane of the first 2D photonic crystal and the electric-field vector of the light within the first waveguide from an arbitrary angle .alpha., the principal plane of the second 2D photonic crystal and the electric-field vector of the light within the second waveguide from an angle of .alpha. + (.pi./2).

公开(公告)号：CA2474475A1

公开(公告)日：2004-07-01

申请号：CA2474475

申请日：2003-12-04

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： MATSUURA TAKASHI ,  USHIRO TOSHIHIKO ,  OKUBO SOICHIRO

IPC: G02B5/18 ,  G02B6/02 ,  G02B6/34 ,  G02B6/10

Abstract: An optical fiber having a practical, small diffractive optical film on an en d is efficiently manufactured at low cost. A diffractive optical film (DF) is formed on an end face of an optical fiber (F) or on an end face of a collimator joined to the end face of the optical fiber. The diffractive optical film (DF) comprises a translucent DLC (diamond-like carbon) layer, a nd this translucent DLC layer includes a modulated refractive-index diffraction grating having a local region of a relatively high refractive index and another local region of a relatively low refractive index.

公开(公告)号：CA2411904A1

公开(公告)日：2003-06-20

申请号：CA2411904

申请日：2002-11-15

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： OKUBO SOICHIRO ,  MATSUURA TAKASHI

IPC: G02B5/28 ,  G02B5/30 ,  G02B27/28 ,  G02F1/09

Abstract: New material useful in miniature, low-cost Faraday rotators, polarizers (analyzers) and magnetic substances; in Faraday rotators and optical isolato rs that can handle a plurality of wavelengths; and in miniaturizing, and reduci ng the cost and enhancing the performance of, optical isolators and various optical devices. Optical isolator (60b) as one example is configured by rectilinearl y arranging a wavelength-selective Faraday rotator (30), a polarizes (20) and an analyzers (40) formed from a DLC thin film, and a magnetic substance (50) th at is transparent to light. Integrally forming these using thin-film lamination technology simplifies the fabrication procedure to enable manufacturing miniature, low-cost optical isolators.

公开(公告)号：CA2348397A1

公开(公告)日：2001-12-07

申请号：CA2348397

申请日：2001-06-05

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： MEGURO KIICHI ,  MATSUURA TAKASHI ,  IMAI TAKAHIRO

IPC: C30B29/04 ,  C23C16/27 ,  C23C16/511 ,  C23C16/52 ,  C30B25/02 ,  C23C16/26

Abstract: A method and an apparatus for forming a diamond film from microwave plasma by controlling a manufacturing condition based on spectroscopic measurement of plasma emission to obtain a large area of a high-quality diamond film. In the method of forming a diamond film, a gas mixture of hydrocarbon gas and hydrogen gas is introduced into a reactor, where the gas mixture is excited by microwave which is also introduced into the reactor to generate plasma, and the light emitted from the plasma is spectroscopically measured. Furthermore, a formation condition of the diamond film is controlled such that the spectrum of a carbon molecule (C2) falls within a predetermined range of requirement.

公开(公告)号：DE69329690D1

公开(公告)日：2000-12-28

申请号：DE69329690

申请日：1993-04-20

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： MATSUURA TAKASHI ,  ITOZAKI HIDEO

IPC: G01R33/035 ,  H01L39/22 ,  H01L39/24

Abstract: A magnetism sensor comprises a substrate, a SQUID including a washer of an oxide superconductor thin film formed on a principal surface of the substrate, a hole shaped a similar figure to the washer at the center of the washer, a slit formed between one side of the washer and the hole and a Josephson junction by which portions of the washer at the both sides of the slit are connected across the slit. The magnetism sensor further comprises a superconducting flux transformer of an oxide superconductor thin film including an input coil arranged on the SQUID but isolated from the SQUID and a pickup coil arranged on the principal surface of the substrate far from the SQUID, which are connected in parallel and a magnetism shield which excludes flux penetrating into the Josephson junction of the SQUID.

公开(公告)号：DE69132038D1

公开(公告)日：2000-04-20

申请号：DE69132038

申请日：1991-09-20

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： TANAKA SABURO ,  MATSUURA TAKASHI ,  ITOZAKI HIDEO

IPC: H01L39/22 ,  H01L39/24

Abstract: There is disclosed a superconductor junction structure comprising: a first superconducting layer (1) of an oxide superconductor formed in a desired pattern on a substrate (10); a non-superconducting layer (3) of a non-superconductor formed on at least a part of the side faces of the first superconducting layer (1), a portion of the surface of the substrate (10) near the part, and a top face of the first superconducting layer (1); and a second superconducting layer (2) of the oxide superconductor formed on the non-superconducting layer (3), the non-superconducting layer being formed thin at the part, and forming a tunnel barrier. And further there is disclosed a process for fabricating a superconductor junction structure comprising: the first step of forming a first superconducting layer (1) of an oxide superconductor in a desired pattern on a substrate (10); the second step of forming a non-superconducting layer (3) of a non-superconductor formed on at least a part of the side faces of the first superconducting layer (1), a portion of the surface of the substrate (10) near the part, and a top face of the first superconducting layer (1) by depositing the non-superconductor from the above; and the third step of forming a second superconducting (2) layer of the oxide superconductor on the non-superconducting layer (2).