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公开(公告)号：JP2002148787A
公开(公告)日：2002-05-22
申请号：JP2001260892
申请日：2001-08-30
Applicant: TORAY INDUSTRIES
Inventor： YAMAHO TOMOYA , HARA YOSHITAKE , YOSHIMURA TOSHIO , MATSUMURA NOBUO , OSHITA HIROSHI
Abstract: PROBLEM TO BE SOLVED: To solve such problems that a ceramic substrate used for a high frequency circuit has low microfabricating capability because the circuit is produced by drilling or printing with a paste and that even when a paste with photosensitivity imparted is used to increase the process ability of a ceramic substrate, precise control of the pattern is difficult because the obtained pattern shrinks during calcination. SOLUTION: The photosensitive paste for a high frequency circuit board contains a photosensitive resin composition and inorganic particles.
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公开(公告)号：JP2000182286A
公开(公告)日：2000-06-30
申请号：JP35744998
申请日：1998-12-16
Applicant: TORAY INDUSTRIES
Inventor： AMIOKA TAKAO , YAMAHO TOMOYA
Abstract: PROBLEM TO BE SOLVED: To provide a phase change optical recording medium which has excellent high-density preservation durability by improving erasability in wet-hot preservation and preservation in initial recording which are important for the high density recording. SOLUTION: When the optical recording medium is manufactured in which medium information can be recorded, erased, and reproduced by irradiating a recording layer formed on a substrate with a light beam and is recorded and erased by phase change between an amorphous phase and a crystal phase, the recording layer is manufactured by sputtering and sputtering gas contains at least hydrogen.
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公开(公告)号：JPH08253398A
公开(公告)日：1996-10-01
申请号：JP8340995
申请日：1995-03-15
Applicant: TORAY INDUSTRIES
Inventor： YAMAHO TOMOYA
Abstract: PURPOSE: To efficiently obtain a derivative single crystal of high quality by dissolving a specific benzoxazine derivative in an organic solvent in a dissolution tank and circulating the solution between the dissolution tank and a crystal growth tank in a prescribed environment, while regulating the solution temperature and the circulation rate. CONSTITUTION: 3,9-Dinitro-5a,6,11a,12-tetrahydro[1,4]benzoxazino[3,2- b]benzoxazine (abbreviated to DNBB hereinafter) is dissolved in an organic solvent in the dissolution tank. This DNBB solution is circulated between this dissolution tank and the growing tank in which DNBB is precipitated and grown as a single crystal in such environment where the deteriorated components in the solution are removed to continuously precipitate the solute, DNBB. At this time, the single crystal of DNBB is grown so that the temperature of the solution in the dissolution tank T1 and that of the solution in the crystal-growing tank T2 may satisfy the formula II [S(T) is the solubility of DNBB (in wt.%), when the solution temperature is T] and the circulation rate of the DNBB solution is regulated down to lower than 50ml/min between both of the tanks.
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公开(公告)号：JP2003195485A
公开(公告)日：2003-07-09
申请号：JP2001394076
申请日：2001-12-26
Applicant: TORAY INDUSTRIES
Inventor： SADAKUNI HIRONOBU , YAMAHO TOMOYA , KAMIOKA TAKENORI
Abstract: PROBLEM TO BE SOLVED: To provide a green sheet having high transmittance and to provide a photosensitive ceramic composition corresponding thereto. SOLUTION: The photosensitive ceramic composition comprises a photosensitive organic component containing a benzotriazole compound (component A) expressed by general formula (1) and inorganic powder. In formula (1), each of R 1 to R 4 and X 1 to X 4 represents a monovalent substituent and may be different from others or at least two of them may be same, and the substituents may form a ring. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JPH0850312A
公开(公告)日：1996-02-20
申请号：JP18589594
申请日：1994-08-08
Applicant: TORAY INDUSTRIES
Inventor： YAMAHO TOMOYA , TSUDA TAKAHARU
Abstract: PURPOSE:To form a large-sized crystal of an org. nonlinear optical material having crystal orientation through which the nonlinear optical characteristics of the material can be advantageously utilized by bringing a specified face as one of the crystal lattice faces of a seed crystal made of the same compd. as a melt into contact with the surface of the melt and carrying out crystal growth. CONSTITUTION:When a single crystal of an org. nonlinear optical crystal material selected from compds. represented by the formula (where R is
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Patent Agency Ranking
公开(公告)号：JPH05313216A
公开(公告)日：1993-11-26
申请号：JP11749392
申请日：1992-05-11
Applicant: TORAY INDUSTRIES
Inventor： FUKUDA SEIJI , GOTO TETSUYA , YAMAHO TOMOYA
Abstract: PURPOSE:To decrease the surface reflection of the org. nonlinear optical crystal to incident light or exit light of a specific wavelength. CONSTITUTION:This org. nonlinear optical crystal has the antireflection films on the front surface, the (21-1)th layer [i: a natural number] from the substrate side to the front surface side of which consists of a high-refractive index material 2 having the refractive index in a 1.80 to 2.40 range and the (2i)th layer consists of a low-refractive index material 3 having the refractive index in a 1.40 to 1.50 range. The respective layers satisfy the following conditions with the specific wavelengths: (0.225+0.5m)lambda
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公开(公告)号：JP2003202662A
公开(公告)日：2003-07-18
申请号：JP2002317366
申请日：2002-10-31
Applicant: TORAY INDUSTRIES
Inventor： YAMAHO TOMOYA , HASHIMOTO MITSUYO , KAMIOKA TAKENORI
Abstract: PROBLEM TO BE SOLVED: To provide a photosensitive ceramic composition that ensures high transmittance and straight traveling property of light for exposure because it is necessary to form via holes having a high aspect ratio and high definition by photolithography so as to obtain satisfactory characteristics in a high-frequency domain. SOLUTION: The photosensitive ceramic composition comprises inorganic powder and a photosensitive organic component as essential components, wherein at least part of the surface of the inorganic powder is formed with a portion consisting of an inorganic material lower in refractive index than the inner layer portion of the inorganic powder. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JPH1027382A
公开(公告)日：1998-01-27
申请号：JP17933596
申请日：1996-07-09
Applicant: TORAY INDUSTRIES
Inventor： YAMAHO TOMOYA , OKUYAMA FUTOSHI , OBAYASHI GENTARO
IPC: G11B7/24
Abstract: PROBLEM TO BE SOLVED: To provide an optical recording medium in which prepits formed on a substrate can be reproduced in a good state and recording and reproducing in a recording layer part of the optical recording medium can be maintained while laser spots are made smaller. SOLUTION: In this optical recording medium, information can be recorded, erased and reproduced by irradiating a recording layer formed on a substrate with light, and recording and erasing of the information of performed by the phase transition between an amorphous phase and a crystalline phase. At least a fir dielectric layer and a recording layer are formed in this order on the substrate having tracks. The thickness L1 of the first dielectric layer is controlled to satisfy the relationship expressed by formula with the wavelebgth λof the light for reproducing, numerical aperture N. A of the optics, depth d of the tracks on the substrate of the optical recording medium, tilt angle θof the since feces of the tracks, and refractive index nL1 of the first dielectric layer for the wavelength λ. In formula, Lt is the film thickiness of the first dielectric layer when the recording layer exhibits the same amount f absrption of light both in when the recproding layer exhohts the same abcvorption of light both the amorphous phase and in the crystalline phase.
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公开(公告)号：JPH09147421A
公开(公告)日：1997-06-06
申请号：JP30011395
申请日：1995-11-17
Applicant: TORAY INDUSTRIES
Inventor： YAMAHO TOMOYA , HIKASA MASAFUMI , OBAYASHI GENTARO
IPC: G11B7/24
Abstract: PROBLEM TO BE SOLVED: To obtain a substrate for a phase transition optical disk having a high header reading rate and a phase transition optical recording medium by elucidating a preformat part shape. SOLUTION: The ratio of the land center length Ylc1 and groove center length Ygc1 of the parts where the shortest signal pits continue of a preformat substrate used for the phase transition type optical disk is specified to Ylc1/(Ylc1+Ygc1)=0.48±0.05, by which the substrate for the optical disk having the high reading rate (hereafter described as the header reading rate) in reproducing of prepit parts and the optical recording medium using the same are embodied.
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公开(公告)号：JPH08253399A
公开(公告)日：1996-10-01
申请号：JP8341795
申请日：1995-03-15
Applicant: TORAY INDUSTRIES
Inventor： YAMAHO TOMOYA
Abstract: PURPOSE: To obtain a process which surely produces a DNBB single crystal of high quality by using an effective equipment while avoiding such intrinsic problem on the temperature-changing process that the temperature fluctuation of the solution in the equipment influences the crystal produced. CONSTITUTION: In the production of a single crystal of DNBB represented by the formula from its solution in an organic solvent, DNBB is precipitated in such an environment that the deteriorated components are removed from the solution, while varying the temperature of the solution in the organic solvent periodically in a certain range in the growing tank where the DNBB is precipitated to give the single crystal.
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