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公开(公告)号：US10088408B2
公开(公告)日：2018-10-02
申请号：US14944276
申请日：2015-11-18
发明人： Jung Yeon Park , Woong Pyo Hong , Ji Youn Seo , Bo Kyung Kim , In Woong Lyo , Kwang Hoon Choi , Doo In Kim , Sung Mo Park , Myung Yung Jeong
摘要： A method of measuring a friction coefficient of a surface of a specimen includes: obtaining surface information of the specimen by using an atomic force microscope (AFM); calculating data of a friction coefficient of the surface of the specimen by using the surface information of the specimen; and mapping the data of the friction coefficient of the specimen to an image. The method of measuring a friction coefficient of a surface of a specimen may prevent a probe part of an atomic force microscope from being worn out and secure high reliability of the friction coefficient value by correcting the atomic force microscope using a specimen to be actually measured and measuring a fiction coefficient at the same time.
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公开(公告)号：US20160161396A1
公开(公告)日：2016-06-09
申请号：US14944276
申请日：2015-11-18
发明人： Jung Yeon Park , Woong Pyo Hong , Ji Youn Seo , Bo Kyung Kim , In Woong Lyo , Kwang Hoon Choi , Doo In Kim , Sung Mo Park , Myung Yung Jeong
摘要： A method of measuring a friction coefficient of a surface of a specimen includes: obtaining surface information of the specimen by using an atomic force microscope (AFM); calculating data of a friction coefficient of the surface of the specimen by using the surface information of the specimen; and mapping the data of the friction coefficient of the specimen to an image. The method of measuring a friction coefficient of a surface of a specimen may prevent a probe part of an atomic force microscope from being worn out and secure high reliability of the friction coefficient value by correcting the atomic force microscope using a specimen to be actually measured and measuring a fiction coefficient at the same time.
摘要翻译： 测定试样表面的摩擦系数的方法包括：使用原子力显微镜（AFM）获得试样的表面信息; 通过使用试样的表面信息计算试样表面的摩擦系数的数据; 并将样本的摩擦系数的数据映射到图像。 测定试样表面的摩擦系数的方法可以防止原子力显微镜的探头部分磨损，并且通过使用要实际测量的试样校正原子力显微镜来确保摩擦系数值的高可靠性， 同时测量小说系数。
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3.发明申请公开(公告)号：US20170211178A9
公开(公告)日：2017-07-27
申请号：US14886825
申请日：2015-10-19
发明人： Woong Pyo Hong , Jung Yeon Park , Kwang Hoon Choi , Bo Kyung Kim , In Woong Lyo , Ji Youn Seo
CPC分类号： C23C14/35 , C23C14/0641 , C23C14/0688 , C23C14/3464 , C23C14/505
摘要： Provided is a surface treatment method, including: preparing a composite comprising chromium (Cr) of about 95 to 98 atomic percents and copper (Cu) of about 2 to 5 atomic percents with respect to the total number of atoms in the composite; and forming a coating layer comprising Cr of about 30 to 40 atomic, Cu of about 2 to 5 atomic percents, with respect to the total number of atoms of the coating layer, and N constituting the balance of the atoms of the coating layer, by sputtering from the composite in a nitrogen-containing atmospheric gas. Further, provided is a vehicle part, surface of which is treated with the same method.
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4.发明申请公开(公告)号：US20170107607A1
公开(公告)日：2017-04-20
申请号：US14886825
申请日：2015-10-19
发明人： Woong Pyo Hong , Jung-yeon Park , Kwang Hoon Choi , Bo-kyung Kim , In Woong Lyo , Ji Youn Seo
CPC分类号： C23C14/35 , C23C14/0641 , C23C14/0688 , C23C14/3464 , C23C14/505
摘要： Provided is a surface treatment method, including: preparing a composite comprising chromium (Cr) of about 95 to 98 atomic percents and copper (Cu) of about 2 to 5 atomic percents with respect to the total number of atoms in the composite; and forming a coating layer comprising Cr of about 30 to 40 atomic, Cu of about 2 to 5 atomic percents, with respect to the total number of atoms of the coating layer, and N constituting the balance of the atoms of the coating layer, by sputtering from the composite in a nitrogen-containing atmospheric gas. Further, provided is a vehicle part, surface of which is treated with the same method.
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公开(公告)号：US20160009856A1
公开(公告)日：2016-01-14
申请号：US14859718
申请日：2015-09-21
发明人： Chae Hwan Hong , Si Hwan Kim , Ji Youn Seo , Do Suck Han
IPC分类号： C08G63/08 , C07D319/12
CPC分类号： C08G63/08 , C07D319/12
摘要： The present invention provides a method of producing D-type lactide from liquid D-type lactic acid, and a method for producing D-type polylactic acid having a weight average molecular weight of about 50,000˜20,000 g/mol from the produced D-type lactide. The method of the present invention is advantageous in that D-type lactide can be obtained at a high yield by a simple method, compared to the conventional production methods. Consequently, production cost of D-type polylactic acid that is finally obtained from D-type lactide can be reduced.
摘要翻译： 本发明提供了从液体D型乳酸生产D-型丙交酯的方法，以及从制造的D型乳酸生产重均分子量为约50,000〜200,000g / mol的D型聚乳酸的方法 丙交酯 本发明的方法的优点在于，与常规的制造方法相比，通过简单的方法可以高收率地获得D型丙交酯。 因此，可以减少最终从D型丙交酯获得的D型聚乳酸的生产成本。
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