-
公开(公告)号：JPH1034871A
公开(公告)日：1998-02-10
申请号：JP19335896
申请日：1996-07-23
Applicant: TSUTSUNAKA PLASTIC KOGYO , SONY CORP
Inventor： AMI HIDEYUKI , MAJIMA OSAMU , KUWABARA SOICHI
IPC: B41D7/00
Abstract: PROBLEM TO BE SOLVED: To provide excellent flaw resistance and durability by regulating a pit layer made of a resin composition obtained by blending carbon black with thermoplastic elastomer to a specific value of modulus of repulsion elasticity based on an impact resilience test of JIS K 6301. SOLUTION: The resin printing plate material 1 is constituted by a laminate obtained by laminating and integrating a pit layer 2 and with thermoplastic resin having compatibility with thermoplastic elastomer. The layer 2 is formed of a resin composition containing 5 to 30 pts.wt. of blending amount of carbon black to 100 pts.wt. of thermoplastic elastomer component. The composition for the layer is regulated to 10 to 50% of modulus of repulsion elasticity based on an impact resilience test of JIS K 6301. If the modulus is excessively low, a flaw occurs, while if the modulus is excessively high, it is excessively soft, and hence there is a fear of deteriorating color reproducibility at the time of printing. To regulate the modulus of the repulsion elasticity of the composition for the layer, thermoplastic resin having compatibility with the thermoplastic elastomer is, for example, added.
-
公开(公告)号：JPH09118002A
公开(公告)日：1997-05-06
申请号：JP27787795
申请日：1995-10-25
Applicant: SONY CORP
Inventor： ITO TATSUMI , MAJIMA OSAMU
Abstract: PROBLEM TO BE SOLVED: To reduce the size and weight of a laser block by providing a fixed semiconductor laser part having at least a semiconductor laser, an imaging optical system part moving corresponding to a laser beam emitted position, and an optical fiber for coupling the laser part to the optical system part. SOLUTION: A semiconductor laser part 31 is connected to one end of an optical fiber 72 through an optical fiber connector 71-1. The other end of the fiber 72 is connected to the focusing optical system part 30 through an optical fiber connector 71-2, and the length of the fiber 72 is formed longer than the width of a printing plate in the axial direction of a plate cylinder. Since only a laser block having the optical system may be mounted at the laser moving stage 28 of the semiconductor laser and optical system, the size and weight of the moving part can be reduced. The problem of the inertia at the time of moving is substantially eliminated by the reduction of the weight of the moving part.
-
公开(公告)号：JPH08258441A
公开(公告)日：1996-10-08
申请号：JP6807295
申请日：1995-03-27
Applicant: TSUTSUNAKA PLASTIC KOGYO , SONY CORP
Inventor： AMI HIDEYUKI , MAJIMA OSAMU
Abstract: PURPOSE: To improve durability and to enable recycling by arranging the tensile strength of a laminate consisting of a pit layer of an acrylic resin composition in which carbon black etc., are incorporated into a resin component and a reinforcing layer of a thermoplastic resin on the back of the pit layer to be a specified value or more. CONSTITUTION: In a printing plate material 1 of resin which can make a printing plate by laser etching, a resin component in which an acrylic resin and an impact reinforcing agent are incorporated is laminated with a pit layer 2 in which carbon black and a heat decomposing substance are incorporated and a reinforcing layer 3 of thermoplastic resin to be integrated into a laminate. The tensile strength of the laminate is set at 25N/mm or more. In order to recycle the printing plate material, a thermoplastic resin which is compatible with an acrylic resin which is a main component of the pit layer 2 is used preferably as the reinforcing layer. In the pit layer 2, the content of an impact reinforcing agent in an acrylic resin composition is arranged to be 100-400 pts.wt. to 100 pts.wt. of acrylic resin.
-
公开(公告)号：JPH06143543A
公开(公告)日：1994-05-24
申请号：JP29996992
申请日：1992-11-10
Applicant: SONY CORP
Inventor： MAJIMA OSAMU
Abstract: PURPOSE:To easily and accurately align a press plate with a plate cylinder. CONSTITUTION:When a recess 11 corresponding to image information is formed on a coating layer 3 on a base film 2 formed with the layer 3, aligning marks 6-9 partly removed from the layer 3 are formed together. When a press plate 5 formed with the marks 6-9 is mounted at a plate cylinder 21, it is aligned by detecting lights transmitted through the marks 6-9 and the film 2 by optical sensors 36-39. Thus, the plate 5 can be accurately aligned with the cylinder 21 in a short time. Particularly, when the marks 6-9 are formed of register marks for observing register of multiple colors of printing, the plate 5 can be aligned with the cylinder 21 accurately in a short time even without requiring a special expart. Further, a print in which an initial sheet has no color deviation is obtained.
-
公开(公告)号：JPH058367A
公开(公告)日：1993-01-19
申请号：JP18561291
申请日：1991-06-28
Applicant: SONY CORP
Inventor： MAJIMA OSAMU , BENNO HIROSHI
Abstract: PURPOSE:To carve a pit in a printing plate material by laser beam of small output by enhancing the combustibility due to the irradiation with laser beam of the printing plate material. CONSTITUTION:A plate material 11 for gravure printing is formed of a combustible substance 12 and an oxidizing agent 13 or formed of a self-combustible substance combustible by the oxidizing agent contained in said substance itself. Or, said plate material is formed of the combustible substance and the self- combustible substance combustible by the oxidizing agent contained in said substance itself.
-
Patent Agency Ranking
公开(公告)号：JPH04316891A
公开(公告)日：1992-11-09
申请号：JP8414091
申请日：1991-04-16
Applicant: SONY CORP
Inventor： MAJIMA OSAMU , SAKAMOTO MITSUO , KAGAMI TOSHIKI , WATANABE MINORU
Abstract: PURPOSE:To provide an ink ribbon for thermal transfer which ensures high quality print even if used many times by making the film thickness of an ink holding layer uniform and increasing the porosity of the ink holding layer. CONSTITUTION:An ink ribbon for thermal transfer 1 consists of at least, an ink holding layer 1a formed on a base 1d. This ink holding layer 1a is composed of a porous film.
-
公开(公告)号：JPH0272949A
公开(公告)日：1990-03-13
申请号：JP22369688
申请日：1988-09-07
Applicant: SONY CORP
Inventor： KOBAYASHI KAZUO , MAJIMA OSAMU
IPC: B41C1/05
Abstract: PURPOSE:To obtain a low-cost plate cylinder having a high grade and being proper to the printing of intermediate number by irradiating the circumferential surface of a synthetic resin cylinder or column with laser beams and forming recessed sections in accordance with the variable density of a picture image. CONSTITUTION:A core 17 is composed of a metallic cylinder, and a cylindrical plate cylinder 6 having an inside diameter approximately equal to the outside diameter of the core 17 and being made of a synthetic resin is inserted along the outside diameter of the core 17. A thermoplastic resin having the narrow range of the distribution of the melting point and hardness on curing and scattering or sublimating at a low temperature on melting may be used as the synthetic resin, and the thermoplastic resin in which approximately 20% carbon is contained in a polyethylene resin, an acrylic resin or a polypropylene resin, etc., can be employed. The plate cylinder 6 is irradiated with laser beams through a focal lens 23, the focus is placed on the surface of the plate cylinder 6 made of the synthetic resin and a printing plate is melted, and the synthetic resin is scattered or sublimated. The quantity and size of recess in which a print material is scattered or sublimated are adjusted by modulating a laser or changing the laser irradiation time to one recess 15 at that time, and a recess having volume corresponding to a gradation is formed.
-
公开(公告)号：JPS64966A
公开(公告)日：1989-01-05
申请号：JP15717687
申请日：1987-06-24
Applicant: SONY CORP
Inventor： MAJIMA OSAMU , KAKINUMA KOICHIRO , NAGANUMA TORU
Abstract: PURPOSE:To improve operability and to facilitate the handling of an electronic blackboard by electrifying and forming the latent image of original information inputted to the dielectric membrane of a blackboard sheet, attracting toner to the image and developing image by semi-fixing or fixing with heat. CONSTITUTION:An electrostatic head 4 has a writing-in electrode 4a and a control electrode 4b, electrifies the blackboard sheet 1 by means of the writing-in electrode 4a according to writing-in information from a control part 5 to form the latent image. The electrostatic head 4, a developing roll 8 constituting the developing means 6 and a fixing lamp 9 are arranged in a region where the blackboard sheet 1 at the bottom of a device is guided by a direction inverting guide 10 in order from the side of a lower roller 3. The development of the latent image is executed by the attraction of the toner attracted by the magnetism to the developing roll 8 and the toner is softened by the fixing lamp 9 to fix the toner. Thus operability is improved to facilitate the handling.
-
公开(公告)号：JPS61261959A
公开(公告)日：1986-11-20
申请号：JP10309285
申请日：1985-05-15
Applicant: SONY CORP
Inventor： MAJIMA OSAMU , KOBAYASHI KAZUO , MISAO IKUO
Abstract: PURPOSE:To obtain a signal of an appropriate image data irrespective of a reflection type by discriminating automatically whether an image source by a laser beam is the reflection type or the transmission type. CONSTITUTION:As for a laser beam of a laser diode 23, its intensity is modulated in accordance with a density of a picture element of a scan position of a source 1. It is converted to a signal St of an image data by a condenser lens 81 and a photodetector 82 which are positioned at the opposite side of a mirror of the image source 1, as a read means 80, and supplied to a switching circuit 86 through an amplifier 83. Also, the read means 80 is converted to a signal Sr of the image data by a mirror 28 and a photodetector 84, and supplied to a switching circuit 86 through an amplifier 85. The signal St and Sr are supplied to level detecting circuits 91, 92, respectively, each peak-to-peak level signal is fetched, both these signals are compared by a comparing circuit 93 and supplied to the switching circuit 86, and the signal of a larger level is fetched and becomes a signal of the image data.
-
公开(公告)号：JPS61246718A
公开(公告)日：1986-11-04
申请号：JP8916985
申请日：1985-04-25
Applicant: SONY CORP
Inventor： MISAO IKUO , MAJIMA OSAMU
Abstract: PURPOSE:To make it unnecessary to use complex software and to shorten writing time by modulating laser light to interpolate it during a response period when the irradiating position of laser light is scanned at the writing of a straight line between discontinuous two points of a cell. CONSTITUTION:A liquid crystal display device consists of a liquid crystal cell 10, a writing means 20, a scanning means 30, a projecting means 50, a tablet 60, a microcomputer 70, etc. Even if address outputs Ax, Ay are changed at a time t0, the coordinates to be irradiated by laser light are not immediately turned to new coordinates, but are turned to the new coordinates after the passage of a response period t0-t1. During the period t0-t1, the coordinates to be irradiated by the laser light, are linearly changed from the old coordinates to the new coordinates. When a straight line is to be drawn between discontinuous two points (old and new coordinates), a writing pulse is supplied to a laser diode 23 during the response period t0-t1 of scanning of laser diode. Consequently, complex software is not required and the time can be shortened. In addition, a specific IC for graphics is not required.
-
-
-
-
-
-
-
-
-
Search Results
79
records
(took 0.033 seconds)
