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1. 发明授权

US5118541A Erasable optical disk media and method of recording/erasing the same 失效
标题翻译：可擦除光盘介质及其记录/擦除方法
公开(公告)号：US5118541A
公开(公告)日：1992-06-02
申请号：US507841
申请日：1990-04-12
申请人： Osamu Yamamoto , Katsuji Hattori , Hirotoshi Niguchi
发明人： Osamu Yamamoto , Katsuji Hattori , Hirotoshi Niguchi
IPC分类号： G11B7/0045 , G11B7/0055 , G11B7/24
CPC分类号： G11B7/00557 , G11B7/00452 , G11B7/24 , Y10S428/913 , Y10S428/914 , Y10S430/146 , Y10T428/239 , Y10T428/31507
摘要： Erasable optical disk media basically comprise a double layer structure composed of a thermal expansion layer formed of an organic dye and a binder, and a retention layer of metal. In the recording process, the thermal expansion layer is heated to form a dome-like pit in the retention layer. The reproducing process is performed by reading differences in reflectivity from the pit and an area surrounding the pit. In the erasing process, the retention layer including the pit is heated to flatten the same under the tensile stress (residual stress) acting on the thermal expansion layer. The pit size is kept in a stable condition during the recording and reproducing processes, while the erasing can be performed completely without leaving partly erased traces. The erasable optical disk media of the foregoing construction are highly durable and resistant to heat.
摘要翻译：可擦除光盘介质基本上包括由有机染料和粘合剂形成的热膨胀层和金属保留层组成的双层结构。在记录过程中，加热热膨胀层以在保留层中形成圆顶状凹坑。通过从凹坑和围绕凹坑的区域读取反射率的差异来执行再现处理。在擦除过程中，在作用在热膨胀层上的拉伸应力（残余应力）下，将包含凹坑的保持层加热至平坦化。在记录和再现处理期间，凹坑尺寸保持在稳定状态，而擦除可以完全执行而不留下部分擦除的迹线。上述结构的可擦除光盘介质是高度耐用且耐热的。

2. 发明授权

US4140203A Acoustic diaphragm with polyurethane elastomer coating 失效
标题翻译：声膜与聚氨酯弹性体涂层
公开(公告)号：US4140203A
公开(公告)日：1979-02-20
申请号：US797408
申请日：1977-05-16
申请人： Hirotoshi Niguchi , Mitsuru Ieki
发明人： Hirotoshi Niguchi , Mitsuru Ieki
IPC分类号： G10K13/00 , H04R7/12 , H04R31/00 , H04R7/00
CPC分类号： H04R31/003 , G10K13/00 , H04R7/127 , H04R2231/001 , H04R2231/003 , H04R2307/029 , Y10T428/31594 , Y10T428/31605
摘要： An acoustic diaphragm has a substrate of either a hard resin film or cloth of an organic material, and at least one side of the substrate is laid with a polyurethane elastomer layer. In the case of a cloth substrate, the cloth is optionally metallized by evaporation deposition of Al or Ti and/or impregnated with a thermosetting resin. The elastomer is a copolymer given by condensation of bifunctional polymeric alcohol and a glycol with a diisocyanate. This diaphragm features a flat response curve at medium to high frequencies on account of its relatively large value for Young's modulus and adequately great internal loss, and accordingly is particularly useful for tweeters.
摘要翻译：声隔膜具有硬质树脂膜或有机材料布的基板，并且基板的至少一侧铺设有聚氨酯弹性体层。在布基材的情况下，布可任选地通过蒸镀Al或Ti进行金属化和/或用热固性树脂浸渍。弹性体是由双官能聚合物醇和二醇与二异氰酸酯缩合得到的共聚物。由于其杨氏模量相对较大，内部损耗相当大，因此该隔膜具有中等至高频率的平坦响应曲线，因此对于高音扬声器特别有用。

3. 发明授权

US4173701A Speaker diaphragm molded from poly-biphenol phthalate type resin film 失效
标题翻译：扬声器隔膜由聚邻苯二甲酸双苯酚型树脂膜成型
公开(公告)号：US4173701A
公开(公告)日：1979-11-06
申请号：US836734
申请日：1977-09-26
申请人： Kosaku Murata , Satoshi Takayama , Hirotoshi Niguchi
发明人： Kosaku Murata , Satoshi Takayama , Hirotoshi Niguchi
IPC分类号： H04R7/02
CPC分类号： H04R7/02
摘要： A speaker diaphragm molded from a poly-bisphenol phthalate type plastic film having ester linkages prepared from an aromatic dicarboxylic acid such as isophthalic acid or terephthalic acid or a mixture thereof and a bifunctional phenol such as bisphenol A. This speaker diaphragm has an excellent low-pitched sound reproducing performance and is further featured by the flat acoustic pressure-frequency characteristic and improved transduce efficiency.
摘要翻译：由具有由芳族二羧酸如间苯二甲酸或对苯二甲酸或其混合物和双官能苯酚如双酚A制备的酯键的聚双酚邻苯二甲酸酯型塑料膜模制的扬声器隔膜。该扬声器隔膜具有优异的低分子量具有声音再现性能，并具有平面声压特性和转换效率的特点。

4. 发明授权

US4291781A Speaker diaphragm and method of preparation of the same 失效
标题翻译：扬声器隔膜及其制备方法相同
公开(公告)号：US4291781A
公开(公告)日：1981-09-29
申请号：US085204
申请日：1979-10-16
申请人： Hirotoshi Niguchi , Mitsuru Ieki
发明人： Hirotoshi Niguchi , Mitsuru Ieki
IPC分类号： D06M17/06 , D06M23/14 , H04R7/10 , H04R7/12 , H04R31/00 , G10K13/00
CPC分类号： D06M17/06 , D06M23/14 , H04R31/003 , H04R7/10 , H04R7/125
摘要： A diaphragm for a speaker which is prepared by heating a conjugated sheet obtained by paper-making polyethylene short fibers with other short fibers which have a high modulus of elasticity, such as carbon fiber, to melt and solidify polyethylene short fibers in the conjugated sheet; the process for the production thereof. The diaphragm for a speaker of the invention has a high modulus of elasticity and a high internal loss and a speaker prepared with such a diaphragm has the advantage of having a wider reproducing frequency response and lower distortion. Furthermore, the process for production of the invention possesses another advantage in that diaphragms for speakers can be produced in a continuous process of successively pressing out the speaker diaphragm with a cold mold press.
摘要翻译：通过将通过造纸聚乙烯短纤维得到的共轭片材与其它具有高弹性模量的短纤维（例如碳纤维）一起加热而在共轭片材中熔融和固化聚乙烯短纤维制成的扬声器隔膜; 其生产过程。用于本发明的扬声器的隔膜具有高的弹性模量和高的内部损耗，并且使用这种隔膜制造的扬声器具有具有更宽的再现频率响应和较低失真的优点。此外，本发明的制造方法具有另一个优点，即用于扬声器的隔膜可以在连续地用冷模压机按压扬声器隔膜的连续过程中产生。

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