公开(公告)号：US4963232A

公开(公告)日：1990-10-16

申请号：US355188

申请日：1989-05-22

申请人： Yasuhisa Kuriyama ,  Shuuzabu Sakaguchi ,  Toshiaki Kohzaki ,  Syoichi Nito

发明人： Yasuhisa Kuriyama ,  Shuuzabu Sakaguchi ,  Toshiaki Kohzaki ,  Syoichi Nito

IPC分类号： C01B21/16

CPC分类号： C01B21/16

摘要： Provided by this invention is a process for producing a purified hydrazine hydrate having a low total organic carbon concentration and which involves:a first step which includes distilling an aqueous solution of hydrazine hydrate in the presence of at least one salt selected from the group consisting of chloride, sulfate, phosphate and carbonate of (a) the metals of Group Ia and IIa of the Periodic Table of the Elements, (b) ammonium or (c) hydrazinium to concentrate the aqueous solution of hydrazine hydrate by distilling water and the majority of the total organic carbon constituents off and separating the resultant concentrate as a bottom product, anda second step which includes distilling the resultant concentrate to recover a purified aqueous solution of hydrazine hydrate as a top product and separating an aqueous solution of the above salt as a bottom product.

公开(公告)号：US20100033825A1

公开(公告)日：2010-02-11

申请号：US12440819

申请日：2007-09-11

申请人： Kenji Kato ,  Katsuhige Hayashi ,  Noriyuki Kato ,  Haruaki Eto ,  Syoichi Nito

发明人： Kenji Kato ,  Katsuhige Hayashi ,  Noriyuki Kato ,  Haruaki Eto ,  Syoichi Nito

IPC分类号： G02B5/02

CPC分类号： G02B5/3083 ,  G02B5/0226

摘要： Disclosed is a film suitable for improvement of luminance, contrast and view angle of a liquid crystal display. Specifically disclosed is a retardation film having a thickness of 30-500 μm, a light transmittance of not less than 85%, and an Nz factor of not less than 10.

摘要翻译： 公开了适用于提高液晶显示器的亮度，对比度和视角的膜。 具体公开了厚度为30〜500μm，透光率为85％以上，Nz系数为10以上的延迟膜。

公开(公告)号：US08451540B2

公开(公告)日：2013-05-28

申请号：US12440819

申请日：2007-09-11

申请人： Kenji Kato ,  Katsushige Hayashi ,  Noriyuki Kato ,  Haruaki Eto ,  Syoichi Nito

发明人： Kenji Kato ,  Katsushige Hayashi ,  Noriyuki Kato ,  Haruaki Eto ,  Syoichi Nito

IPC分类号： G02B5/02 ,  G02B5/30

CPC分类号： G02B5/3083 ,  G02B5/0226

摘要： Disclosed is a film suitable for improvement of luminance, contrast and view angle of a liquid crystal display. Specifically disclosed is a retardation film having a thickness of 30-500 μm, a light transmittance of not less than 85%, and an Nz factor of not less than 10.

摘要翻译： 公开了适用于提高液晶显示器的亮度，对比度和视角的膜。 具体公开了厚度为30〜500μm，透光率为85％以上，Nz系数为10以上的延迟膜。

公开(公告)号：US06596192B2

公开(公告)日：2003-07-22

申请号：US09908539

申请日：2001-07-20

申请人： Tomoharu Himeshima ,  Nahomi Aoyama ,  Syoichi Nito ,  Kazuyuki Tomita ,  Junko Baba

发明人： Tomoharu Himeshima ,  Nahomi Aoyama ,  Syoichi Nito ,  Kazuyuki Tomita ,  Junko Baba

IPC分类号： C09K1502

CPC分类号： A23L3/3436

摘要： An oxygen absorbent composition absorbing water vapor mixed a liquid mixed (A) an aliphatic compound(s) with an unsaturated group(s) and (B) a transition metal salt(s) with (C) at least one solid selected from the group consisting of calcium oxide, calcium chloride and magnesium chloride.