公开(公告)号：US4577132A

公开(公告)日：1986-03-18

申请号：US662946

申请日：1984-10-19

申请人： Hiroji Ohigashi ,  Keiko Koga ,  Toshiharu Nakanishi

发明人： Hiroji Ohigashi ,  Keiko Koga ,  Toshiharu Nakanishi

IPC分类号： B06B1/06 ,  H01L41/08

CPC分类号： B06B1/0688 ,  Y10T29/42

摘要： An ultrasonic transducer is disclosed which includes a vibrating element comprising a sheet of a piezoelectric polymeric material which consists essentially of a copolymer of about 65 to 82 mol percent of vinylidene fluoride and about 35 to 18 mol percent of ethylene trifluoride. The polymeric material is formed into a film of the desired thickness and then heated to a temperature greater than about the crystal phase transition temperature and less than about the melting-point temperature for a period of time of about ten minutes to about two hours to produce a heat-treated film. The heat-treated film is poled in an electrical field of from about 50 to about 1,500 kilovolts per centimeter to give the film a thickness extensional electromechanical coupling factor of at least 0.05 and preferably greater than 0.2.

摘要翻译： 公开了一种超声波换能器，其包括振动元件，该振动元件包括压电聚合材料片，该片材基本上由约65至82摩尔％的偏二氟乙烯和约35至18摩尔百分数的三氟乙烯的共聚物组成。 将聚合物材料形成为所需厚度的膜，然后加热到大于约晶体相转变温度并且小于约熔点温度的温度约10分钟至约2小时的时间段以产生 热处理膜。 热处理的膜在约50至约1500千伏/厘米的电场中极化，以使膜的厚度延伸机电耦合系数至少为0.05，优选大于0.2。

公开(公告)号：US20050175550A1

公开(公告)日：2005-08-11

申请号：US10451678

申请日：2001-12-26

申请人： Yoshio Nakano ,  Mamiko Yoshimura ,  Toshihiko Koga ,  Keiko Koga

发明人： Yoshio Nakano ,  Mamiko Yoshimura ,  Toshihiko Koga ,  Keiko Koga

IPC分类号： A61K8/69 ,  A61K8/70 ,  A61P1/02 ,  A61P31/04 ,  A61Q11/00 ,  A61K7/16 ,  A61K31/198

CPC分类号： A61Q11/00 ,  A61K8/70

摘要： An oral composition comprising trifluoromethionine as an effective component is provided as a useful oral composition for preventing and/or treating intraoral diseases such as bad breath, periodontal disease, alveolar pyorrhea, etc., which is safe even if daily used.

摘要翻译： 提供包含三氟甲硫氨酸作为有效成分的口服组合物作为用于预防和/或治疗诸如口臭，牙周病，牙槽屎等的口腔内疾病的有用的口服组合物，即使每天使用也是安全的。

公开(公告)号：US4578442A

公开(公告)日：1986-03-25

申请号：US510687

申请日：1983-07-05

申请人： Hiroji Ohigashi ,  Keiko Koga ,  Toshiharu Nakanishi

发明人： Hiroji Ohigashi ,  Keiko Koga ,  Toshiharu Nakanishi

IPC分类号： H01L41/193 ,  C04B35/00 ,  C08F214/22

CPC分类号： H01L41/193

摘要： A piezoelectric polymeric material having utility in ultrasonic transducers is disclosed which consists essentially of a copolymer of about 65 to 82 mol percent of vinylidene fluoride and about 35 to 18 mol percent of ethylene trifluoride. The polymeric material is formed into a film of the desired thickness and then heated to a temperature greater than about the crystal phase transition temperature and less than about the melting-point temperature to produce a heat-treated film. The heat-treated film is poled in an electrical field of from about 50 to about 1,500 kilovolts per centimeter to give the film a thickness extensional electromechanical coupling factor of at least 0.05 and preferably greater than 0.2.

摘要翻译： 公开了一种用于超声波换能器的压电聚合材料，其基本上由约65至82摩尔％的偏二氟乙烯和约35至18摩尔％的三氟乙烯的共聚物组成。 将聚合物材料形成为所需厚度的膜，然后加热至大于约晶体相转变温度并小于约熔点温度的温度以产生热处理膜。 热处理的膜在约50至约1500千伏/厘米的电场中极化，以使膜的厚度延伸机电耦合系数至少为0.05，优选大于0.2。