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51. 发明专利

JPS62208441A RECORDING MEDIUM FOR REWRITING TYPE OPTICAL DISK 失效
公开(公告)号：JPS62208441A
公开(公告)日：1987-09-12
申请号：JP5011686
申请日：1986-03-07
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： CHIBA REIICHI , FUNAKOSHI NORIHIRO , FUJIMORI SUSUMU
IPC分类号： B41M5/26 , G11B7/24 , G11B7/243
摘要： PURPOSE:To prevent the deterioration in recording and erasing characteristics and recording life by constituting an optical recording layer of an alloy film essentially consisting of Te and Au and contg. at least one kind of element selected from an element group consisting of Se, As, Sb and S. CONSTITUTION:A transparent substrate 1 consists of glass or plastic and is provided with an underlying layer 2 consisting of a transparent vapor deposited SiO film, the recording layer 3 and protective layer consisting of a transparent vapor deposited SiO film. The optical recording layer 3 consists of the alloy element essentially consisting of Te and Au and contg. at least one kind of the element selected from the element group consisting of Se, As, Sb, S. The alloy film contains the essential components Te and Au at 2.0

52. 发明专利

JPS6276038A OPTICAL RECORDING MEMBER 失效
公开(公告)号：JPS6276038A
公开(公告)日：1987-04-08
申请号：JP21473585
申请日：1985-09-30
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： FUJIMORI SUSUMU , CHIBA REIICHI , FUNAKOSHI NORIHIRO
IPC分类号： B41M5/26 , G03C1/72 , G11B7/24
摘要： PURPOSE:To realize higher performance by adding a soft layer for relieving the volumetric change of a recording layer in the stage of laser recording. CONSTITUTION:The dielectric layer is constituted by laminating the soft dielectric film on the substrate side and the hard dielectric material on the outside. The thin soft layer is provided to the part to contact with a recording medium to relieve the impact generated from the volumetric change in the stage of making Te in the recording film amorphous; further, the thick and hard layer is provided on the soft layer to prevent the irreversible shape change as a whole to constitute the composite dielectric layer. The deterioration of an over coat layer and under coat layer by the repetition of making the Te crystallization transition to amorphous is thus prevented. The irreversible deformation of the over coat and under coat layers in the writing stage by laser heating is eliminated by using, for example, PbF as the soft layer and SiO2 as the hard layer. Repetition of many times of recording and erasing is thus made possible.

53. 发明专利

JPS6054150B2 失效
公开(公告)号：JPS6054150B2
公开(公告)日：1985-11-28
申请号：JP1151078
申请日：1978-02-06
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAKEI KOJI , FUJIMORI SUSUMU , YAMAUCHI GORO , NAGAI KAZUTOSHI
IPC分类号： B23K20/00 , B23K26/00 , C23C24/08 , C23C26/00

54. 发明专利

JPS60147392A OPTICAL INFORMATION RECORDING MEDIUM 失效
公开(公告)号：JPS60147392A
公开(公告)日：1985-08-03
申请号：JP360684
申请日：1984-01-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： FUJIMORI SUSUMU , ASANO YOSHIHIRO , YAMAZAKI HIRONORI
IPC分类号： B41M5/26 , G11B7/24 , G11B7/257 , G11B7/26
摘要： PURPOSE:To enable favorable recording sensitivity and stability, by treating the surface of a base with fluorine to reduce the interfacial tension between the surface and a thin recording film. CONSTITUTION:The surface of the base 1 of an optical information recording medium is treated with fluorine to cover the surface of the base 1 with fluorine atoms, thereby providing a fluorine atom layer 2, which is covered by a thin metallic film 3 constituting a recording layer. In carrying out the fluorine treatment, the base 1 is exposed to a plasma generated by electric discharge in a flon gas or a mixed gas of a flon gas and an inert gas, thereby fluoridizing the surface of the base. By this treatment, the interfacial tension between the metallic film 3 and the surface of the base 1 is reduced, so that when the film material is melted by laser heating, pits are rapidly formed in the metallic film 3.

55. 发明专利

JPS6048397A OPTICAL RECORDING MEDIUM AND PREPARATION THEREOF 失效
公开(公告)号：JPS6048397A
公开(公告)日：1985-03-16
申请号：JP15637783
申请日：1983-08-29
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： ASANO YOSHIHIRO , YAMAZAKI HIRONORI , FUJIMORI SUSUMU , IWAZAWA AKIRA
IPC分类号： B41M5/26 , G11B7/24 , G11B7/243 , G11B7/244 , G11B7/251
摘要： PURPOSE:To obtain an optical recording medium having high sensitivity and capable of performing recording in reduced noise, by simultaneously vapor depositing Te and a high-molecular compound onto a substrate to equally disperse Te throughout a high-molecular vapor deposition film. CONSTITUTION:At first, a container 1 is evacuated from an exhaust port 4 to form a vacuum atmosphere. Subsequently, Te (or an alloy consisting of Te and Ge, Se, In, Sn, Pb, Sb and/or Bi) and the high-molecular substance on a receiver 7 are heated, melted and evaporated by heaters 5, 6 and vapor deposited onto a substrate 3 (e.g., an acrylic plate, a metal plate or a glass plate). By this method, a high-molecular vapor deposition film 11 having Te equally and uniformly dispersed therein is formed on the substrate 3. A protective layer 12 is further formed to obtain the objective recording medium.

56. 发明专利

JPS5990246A LASER RECORDING MEDIUM 失效
公开(公告)号：JPS5990246A
公开(公告)日：1984-05-24
申请号：JP19897782
申请日：1982-11-15
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： ASANO YOSHIHIRO , YAMAZAKI HIRONORI , FUJIMORI SUSUMU
IPC分类号： B41M5/26 , G11B7/241 , G11B7/257
摘要： PURPOSE:To prevent deterioration of a recording layer due to oxidation and to obtain a laser recording medium enhanced in recording sensitivity by forming a plasma-polymerized florocarbon film on a substrate and a metallic recording layer contg. Te on this film. CONSTITUTION:A substrate 1 having track servo grooves 4 are formed with plastics, such as polymethacrylate or polycarbonate, and then, a polyfluorocarbon film 2 is formed by plasma polymn. Further, a CS2 plasma polymerized film 3 contg. 90vol% Te is formed on the film 2 to obtain an optical recording layer. In another manner, a glass substrate 1 is coated with a UV hardenable resin film 5 of an acrylic or the like resin, the grooves 4 are transferred by using an Ni stamper or the like, the polyfluorocarbon film 2 is formed on the film 5, and then the recording layer 3 is formed. The film 2 prevents oxidation of the film 3 due to intrusion of moisture from the side of the substrate 1, and degradation and deterioration due to the unhardened matter and the remaining low-molecular matters of the resin film 5, and the obtained recording layer is superior in recording sensitivity and stable against the lapse of time.

57. 发明专利

JPS5883343A THIN FILM FOR OPTICAL STORAGE 失效
公开(公告)号：JPS5883343A
公开(公告)日：1983-05-19
申请号：JP18062281
申请日：1981-11-11
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAGAI KAZUTOSHI , FUJIMORI SUSUMU
IPC分类号： G11C17/00 , B41M5/26 , G11B7/24 , G11B7/243
摘要： PURPOSE:To improve the sensitivity and reliability of writing and reading of light information by forming a thin film (silver oxide or metal halide) for optical storage which performs thermal decompositon by absorbing light to vary in reflectivity on a substrate of Si, etc. CONSTITUTION:On a transparent or opaque substrate of, e.g. Si, a thin film of Ag2O or AuCl, etc., for optical storage is formed. Laser convergent light 3 focused on said thin film 2 of Ag2O through a lens 4 to heat the film up to 250 deg.C. The Ag2O film 2 is oxidized by absorbing the laser light 3 to produce O2, and thus performs thermal decomposition to vary in reflectivity. Said O2 and C2 produced by the thermal decomposition scatter immediately in the form of gas and never remains, so the reflectivity varies remarkably, obtaining high sensitivity.

58. 发明专利

JPS57128031A EXPOSURE MASK 失效
公开(公告)号：JPS57128031A
公开(公告)日：1982-08-09
申请号：JP1269381
申请日：1981-01-30
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAMAMURA TOSHIAKI , FUJIMORI SUSUMU
IPC分类号： H01L21/027 , H01L21/30
摘要： PURPOSE:To obtain a mask having extremely excellent resolution by employing a diamond-shaped carbon film as the mask substrate of an X-ray or as a part of the substrate, thereby enhancing the permeability of the X-ray. CONSTITUTION:A nitrided Si film 12 is accumulated on one side surface of an Si wafer 11. Then, a photoresist is covered on the film, and an Si selecting back etching window pattern 13 is formed. Subsequently, the film 12 is opened with a window 14. Thereafter, a diamond-shaped carbon film is formed on the remaining Si surface. Then, a positive type electron beam resist is covered on the film, thereby forming a resist film 15. Subsequently, a test pattern is drawn by an electron beam drawing device, and is then developed. Thereafter, metallic Ti is deposited on the film, Au 16 is deposited on the Ti. Then, it is lifted off, thereby obtaining the metallic pattern of an X-ray absorption layer. Subsequently, the Si of the part opened with the window is removed by back etching, thereby obtaining an exposure mask. In this manner, an X-ray mask having extremely high contrast can be obtained.

59. 发明专利

JPS54110138A FORMING METHOD FOR HIGH MELTING POINT METAL THIN FILM 失效
公开(公告)号：JPS54110138A
公开(公告)日：1979-08-29
申请号：JP1662078
申请日：1978-02-17
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： FUJIMORI SUSUMU , TAKEI KOUJI , NAGAI KAZUTOSHI
IPC分类号： C23C24/10
摘要： PURPOSE:To easily obtain an electrical contact point, etc. by dispersing high m.p. metal particles in a low m.p. metal and melting the low m.p. metal by heating to deposit it on a substrate, thereby binding the particles to the substrate to form a thin film. CONSTITUTION:A mixt. of high m.p. metal particles 1 such as Re and low m.p. metal particles 2 such as gold is mounted on substrate 3 and heated with laser beam, etc. for a short time to melt particles 2 alone, thus forming a worked product consisting of low m.p. and high m.p. metals. Particles 1 are then exposed to the product surface by spray polishing, etc. By this method a high m.p. metal thin film can be formed on substrate 3 in a short time.

60. 发明专利

JPH06232271A CONNECTION MATERIAL AND INPUT/OUTPUT CONTROL METHOD 失效
公开(公告)号：JPH06232271A
公开(公告)日：1994-08-19
申请号：JP3250893
申请日：1993-01-29
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： FUJIMORI SUSUMU , IWATA TSUNEKAZU , MIYAGI MASAMI , HATAKEYAMA IWAO
IPC分类号： H01B1/02 , H01C7/00 , H01L21/82 , H01L27/10 , H01L27/105 , H01L35/16 , H05K1/09
摘要： PURPOSE:To change the electric resistance of a resistance-variable material reversibly when light is applied or the like by using a material which contains a chemical element selected from a prescribed group and whose electric resistance is changed by irradiation with light, by applying a voltage or by heating. CONSTITUTION:A connection material which contains at least two kinds of chemical elements selected from a group composed of Ge, Te, Sb and In and whose electric resistance is changed by irradiation with light, by applying a voltage or by heating is used. For example, interconnections are formed in two layers in the two X- and Y-directions. Y-direction interconnections 1, X- direction interconnections 2, a substrate 4, lead wires 5 and the like are provided. Then, an SiO2 layer is formed as an intermediate insulating layer 3, and it isolates conductors. Holes are made in points 6 of intersection in the X-Y interconnections, and a resistance-variable connection material, i.e., an (Sb2Te3)50(GeTe)50 thin film, is arranged inside the holes. When a repeated experiment on current application and an insulation operation is tried, it is found out that the mates is operated stably reversibly.

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