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    • 1. 发明专利
    • Method for manufacturing plastic optical member
    • 制造塑料光学构件的方法
    • JP2003329858A
    • 2003-11-19
    • JP2002141579
    • 2002-05-16
    • Fuji Photo Film Co LtdKoike Yasuhiro富士写真フイルム株式会社小池 康博
    • SATO MASATAKAMIYOSHI TAKAHITOSHIROKURA YUKIOOGURA TORUMIZUSHIMA YASUYUKI
    • G02B6/00
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a plastic optical member excellent in productivity by suppressing foaming from the member in working in the manufacturing of the plastic optical member. SOLUTION: In the method for manufacturing the plastic optical member consisting of a core part and a cladding part, a hollow tube to be the cladding part is fabricated and the core part is subsequently fabricated by polymerizing a polymerizable monomer in the hollow tube. The method for manufacturing the plastic optical member is characterized by slowly cooling the workpiece with 3°C/min or lower cooling rate until reaching Tg of the plastic optical member or lower temperature after finishing the polymerization step in the step to fabricate the core part. COPYRIGHT: (C)2004,JPO
    • 解决的问题:提供一种通过在制造塑料光学构件的工作中抑制来自构件的发泡而制造生产率优异的塑料光学构件的方法。 解决方案:在由芯部分和包层部分组成的塑料光学部件的制造方法中,制造作为包层部分的中空管,然后通过在中空管中聚合可聚合单体制造芯部分 。 制造塑料光学部件的方法的特征在于,在步骤中完成聚合步骤之后,以3℃/ min或更低的冷却速度缓慢冷却工件直到达到塑料光学部件的Tg或较低的温度,以制造芯部。 版权所有(C)2004,JPO
    • 2. 发明专利
    • Method for manufacturing optical transmission body
    • 制造光传输体的方法
    • JP2003329856A
    • 2003-11-19
    • JP2002141534
    • 2002-05-16
    • Fuji Photo Film Co LtdKoike Yasuhiro富士写真フイルム株式会社小池 康博
    • SATO MASATAKAOGURA TORUSHIROKURA YUKIOMIYOSHI TAKAHITO
    • G02B6/00
    • PROBLEM TO BE SOLVED: To provide a stable method for manufacturing an optical transmission body with a stable sire diameter and the stable performance of the wire diameter. SOLUTION: In this method for manufacturing an optical transmission body for heating and melting a preform having a core part and a clad part whose refractive indexes are different from each other to extend the preform into an optical transmission body with a prescribed outer diameter, the weight average molecular weight of a polymer forming the core part is within the range of 80 to 120% of the weight average molecular weight of a polymer forming the clad part, a glass transition temperature of the central polymer of the core part is lower by 5°C or more than a glass transition temperature of the polymer of the clad part, and the preform whose outer diameter is 20 to 100 mm is extended into the optical transmission body whose outer diameter is 300 to 1000 μm while an extension speed is ≥3 m/min and ≤25 m/min and wire drawing tension is ≥5 g in weight (0.049 N) and ≤150 g in weight (1.47 N). COPYRIGHT: (C)2004,JPO
    • 要解决的问题:为了提供一种制造具有稳定的母线直径和线直径的稳定性能的光传输体的稳定方法。 解决方案:在这种制造用于加热和熔化具有芯部的预成型体的光传输体的方法和具有折射率彼此不同的包层部分的情况下,将预成型体延伸到具有规定外径的光传输体 形成芯部的聚合物的重均分子量在形成包层部分的聚合物的重均分子量的80〜120%的范围内,芯部的中心聚合物的玻璃化转变温度较低 比包层部分的聚合物的玻璃化转变温度高5℃以上,外径为20〜100mm的预成型体延伸到外径为300〜1000μm的光传输体中,延伸速度为 ≥3m/ min和≤25m/ min,拉丝张力≥5g(0.049N),≤150g(1.47N)。 版权所有(C)2004,JPO
    • 4. 发明专利
    • Method for manufacturing plastic optical member
    • 制造塑料光学构件的方法
    • JP2003329859A
    • 2003-11-19
    • JP2002141491
    • 2002-05-16
    • Fuji Photo Film Co LtdKoike Yasuhiro富士写真フイルム株式会社小池 康博
    • SATO MASATAKAMIYOSHI TAKAHITOOGURA TORUSHIROKURA YUKIOMIZUSHIMA YASUYUKI
    • G02B6/00C08F2/00
    • PROBLEM TO BE SOLVED: To stably fabricate a plastic optical member having excellent performance with high productivity. SOLUTION: In the method for manufacturing the plastic optical member consisting of a core part and a cladding part, a hollow tube to be the cladding part is formed and the core part is subsequently formed by infusing a polymerizable monomer into the hollow tube and polymerizing it therein. The method for manufacturing the plastic optical member is characterized by conducting the polymerization reaction in the core part forming step under controlled pressure and varying the pressure. Preferably the polymerization reaction is conducted under at least two-stage pressure control wherein the pressure P 1 at the initial stage of the polymerization is 0.01-0.2 MPa and the pressure P 2 at the second stage is at least P 1 or higher. In the case the polymerization temperature T exceeds the boiling point of the polymerizable monomer, the heating polymerization is conducted at a pressure in which the boiling point of the polymerizable monomer is at least higher than T. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:为了稳定地制造具有优异性能的高生产率的塑料光学部件。 解决方案:在由芯部分和包层部分构成的塑料光学部件的制造方法中,形成作为包层部分的中空管,随后通过将可聚合单体注入中空管中而形成芯部 并在其中聚合。 制造塑料光学构件的方法的特征在于在受控压力下在芯部形成步骤中进行聚合反应并改变压力。 优选地,聚合反应在至少两阶段的压力控制下进行,其中聚合初始阶段的压力P 1 为0.01-0.2MPa,压力P 2 在第二阶段为至少P 1 或更高。 在聚合温度T超过可聚合单体的沸点的情况下,加热聚合在可聚合单体的沸点至少高于T的压力下进行。(C)2004, JPO
    • 6. 发明专利
    • Method and device for manufacturing optical transmission body
    • 用于制造光传输体的方法和装置
    • JP2003329857A
    • 2003-11-19
    • JP2002141557
    • 2002-05-16
    • Fuji Photo Film Co LtdKoike Yasuhiro富士写真フイルム株式会社小池 康博
    • OGURA TORUSATO MASATAKAMIYOSHI TAKAHITO
    • G02B6/00
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a plastic optical transmission body, which can stably produce an optical transmission body having high productivity and satisfactory quality and a manufacturing device used for the manufacturing method. SOLUTION: This method for manufacturing the plastic transmission body includes an extension process for making a preform pass through an extension furnace for heating and melting the preform to extend the preform into an optical transmission body. In the method and device for manufacturing a plastic optical member, a plurality of reactor core tubes provided between the entrance of the extension furnace and the exit of the extension furnace are controlled at different temperatures, and the extension furnace wherein the controlled temperature of the reactor core tubes provided between the entrance of the extension furnace and a melting part increases monotonously and the controlled temperature of the reactor core tubes provided between the melting part and the exit of the extension furnace decreases monotonously is used to extend the preform. COPYRIGHT: (C)2004,JPO
    • 解决的问题:提供一种可以稳定地制造高生产率和令人满意的质量的光传输体的塑料光传输体的制造方法以及用于制造方法的制造装置。 解决方案:用于制造塑料透射体的该方法包括用于使预成型坯通过用于加热和熔化预成型件的延伸炉的延伸工艺,以将预成型件延伸到光学透射体中。 在制造塑料光学构件的方法和装置中,设置在延伸炉的入口和延伸炉的出口之间的多个反应堆芯管被控制在不同的温度,并且延伸炉其中反应器的受控温度 提供在延伸炉的入口和熔化部分之间的芯管单调增加,并且设置在延伸炉的熔化部分和出口之间的反应堆芯管的受控温度单调减少用于延伸预型件。 版权所有(C)2004,JPO
    • 8. 发明专利
    • Plastic optical fiber cable and method for manufacturing the same
    • 塑料光纤电缆及其制造方法
    • JP2003270453A
    • 2003-09-25
    • JP2002075128
    • 2002-03-18
    • Fuji Photo Film Co LtdKoike Yasuhiro富士写真フイルム株式会社小池 康博
    • SHIROKURA YUKIOMIYOSHI TAKAHITOOGURA TORUSATO MASATAKA
    • G02B6/00
    • PROBLEM TO BE SOLVED: To obtain a plastic optical fiber cable which has its increase in transmission loss suppressed by coating a plastic optical fiber with a coating layer without damaging the optical fiber. SOLUTION: Low-density polyethylene (PE) of 100°C in fluidization start temperature Tf is polymerized by a high-pressure method. The outer circumference of a GI type plastic optical fiber 11 (having a 85°C glass transition temperature minimum value Tg min and 180 dB/km transmission loss) made of PMMA is coated with the PE as a coating layer 33a. The temperature of the PE in the coating process is found to be 120°C through a temperature sensor 35. A pressure reducing apparatus 36 reduces the pressure of the inside 32a of a nipple -50 kPa below the atmospheric pressure. A cable 15 of 1.6 mm in external diameter is obtained, the transmission loss is 183 dB/km, and the coating is carried out at a temperature which is 45°C above the Tg min , so the fiber is seldom damaged. COPYRIGHT: (C)2003,JPO
    • 解决的问题:为了获得通过用涂层涂覆塑料光纤而不损坏光纤而抑制传输损耗增加的塑料光缆。 解决方案:在流化开始温度Tf中100℃的低密度聚乙烯(PE)通过高压法聚合。 由PMMA制成的GI型塑料光纤11(具有85℃玻璃化转变温度最小值Tg min 和180dB / km传输损耗)的外周涂覆有作为涂层的PE 层33a。 通过温度传感器35发现涂布过程中的PE的温度为120℃。减压装置36将低于大气压-50kPa的压头的内部32a的压力降低。 获得外径为1.6mm的电缆15,传输损耗为183dB / km,涂层在高于Tg min 的45℃的温度下进行,因此纤维 很少损坏。 版权所有(C)2003,JPO