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    Photocatalyst
    1.
    发明授权
    Photocatalyst 有权
    光催化剂

    公开(公告)号：US06743749B2

    公开(公告)日：2004-06-01

    申请号：US10181918

    申请日：2002-07-26

    申请人： Takeshi Morikawa ,  Takahiro Shiga ,  Ryoji Asahi ,  Takeshi Ohwaki ,  Yasunori Taga

    发明人： Takeshi Morikawa ,  Takahiro Shiga ,  Ryoji Asahi ,  Takeshi Ohwaki ,  Yasunori Taga

    IPC分类号： B01J2300

    CPC分类号： B01J21/063 ,  B01J21/06 ,  B01J23/26 ,  B01J27/24 ,  B01J35/002 ,  B01J35/004 ,  B01J37/347

    摘要： A Ti—O—N film is formed on an SiO2 substrate by sputtering. For example, TiO2 is used as a target and nitrogen gas is introduced into the atmosphere. Crystallization is carried out by a post-sputtering heat treatment. Then a charge separation material such as Pt is supported on the Ti—O—N film. With the fabricated TiO2 crystals, the Ti—O—N film containing nitrogen exhibits a good catalytic reaction by using visible light as acting light. Since the charge separation material captures electrons or positive holes, recombination of electrons and positive holes is effectively prevented, and consequently more efficient photocatalytic reaction is performed. It is preferable to form a photocatalyst material film (Ti—Cr—O—N film) by sputtering the SiO2 substrate by use of TiO2 and Cr as the target in a nitrogen atmosphere. Crystallization is performed by a post-sputtering heat treatment.

    摘要翻译： 通过溅射在SiO 2衬底上形成Ti-O-N膜。 例如，将TiO 2用作靶，将氮气引入大气中。 通过后溅射热处理进行结晶。 然后在Ti-O-N膜上负载诸如Pt的电荷分离材料。 通过制备的TiO 2晶体，通过使用可见光作为光，含氮的Ti-O-N膜表现出良好的催化反应。 由于电荷分离材料捕获电子或正空穴，因此有效地防止电子和空穴的复合，因此进行更有效的光催化反应。 优选通过在氮气气氛中通过使用TiO 2和Cr作为靶来溅射SiO 2基板来形成光催化剂材料膜（Ti-Cr-O-N膜）。 通过后溅射热处理进行结晶。

    Photocatalytic material and photocatalytic article
    3.
    发明授权
    Photocatalytic material and photocatalytic article 有权
    光催化材料和光催化制品

    公开(公告)号：US06794065B1

    公开(公告)日：2004-09-21

    申请号：US10048933

    申请日：2002-02-05

    申请人： Takeshi Morikawa ,  Ryoji Asahi ,  Takeshi Ohwaki ,  Yasunori Taga

    发明人： Takeshi Morikawa ,  Ryoji Asahi ,  Takeshi Ohwaki ,  Yasunori Taga

    IPC分类号： B01J3100

    CPC分类号： B01J21/063 ,  B01J27/24 ,  B01J35/002 ,  B01J35/004 ,  B01J37/0238 ,  B01J37/34 ,  B01J37/341 ,  B01J37/346 ,  B01J37/349 ,  C01G23/04 ,  C01P2002/54 ,  C01P2002/77 ,  C01P2004/84

    摘要： A photocatalytic material having titanium oxide crystals and anions X incorporated therein, which is prepared by at least one of a method comprising substituting anions X for some of the oxygen sites of titanium oxide crystals, a method comprising doping anions X between lattices of a titanium crystal and a method comprising doping grain boundaries of titanium oxide, or a combination of these method. The photocatalytic material has acquired a new energy level formed in a band gap of titanium oxide, which results in its exhibition of a photocatalytic activity by absorbing visible lights. The photocatalytic material can thus exhibit a satisfactory photocatalytic activity under sunlight and also in a room with a fluorescent lamp.

    摘要翻译： 一种具有钛氧化物晶体和阴离子X的光催化材料，其通过以下方法制备，所述方法包括用阴离子X取代氧化钛晶体的一些氧部位的方法，包括在钛晶体的晶格之间掺杂阴离子X的方法 以及包含掺杂二氧化钛的晶界的方法，或这些方法的组合。 光催化材料已经获得了在氧化钛带隙中形成的新能级，从而通过吸收可见光来展现光催化活性。 因此，光催化材料在阳光下以及在具有荧光灯的房间中表现出令人满意的光催化活性。

    Dental bleaching agent kit and the method for bleaching teeth
    4.
    发明授权
    Dental bleaching agent kit and the method for bleaching teeth 有权
    牙齿漂白剂套件和漂白牙齿的方法

    公开(公告)号：US07250155B2

    公开(公告)日：2007-07-31

    申请号：US10791783

    申请日：2004-03-04

    申请人： Shin Yamaguchi ,  Toshihiro Sekiguchi ,  Keisuke Ikushima ,  Shoji Akahane ,  Koyu Aoki ,  Takeshi Morikawa ,  Takeshi Ohwaki ,  Yasunori Taga

    发明人： Shin Yamaguchi ,  Toshihiro Sekiguchi ,  Keisuke Ikushima ,  Shoji Akahane ,  Koyu Aoki ,  Takeshi Morikawa ,  Takeshi Ohwaki ,  Yasunori Taga

    IPC分类号： A61K8/00 ,  B01J27/24 ,  B01J21/06

    CPC分类号： A61K8/29 ,  A61K8/22 ,  A61Q11/00

    摘要： To eliminate a defect in conventional dental bleaching agent, that light for activating titanium oxide hardly reaches down to the titanium oxide at the teeth surface to be bleached, a dental bleaching agent set consists of two components of which the first component is attached to teeth surface and irradiation of light is followed after the second component is contacted on the teeth surface, the first component consisting of an organic solvent, containing at least one of a titanium oxide, a nitrogen doped titanium oxide, and a titanium oxinitride having photocatalytic activities, and preferably one or more of a metal oxide, a metal salt, and a metal powder, a thickener and water, the second component consisting of a compound that produces hydrogen peroxide in water, a thickener and a carrier.

    摘要翻译： 为了消除常规牙齿漂白剂中的缺陷，用于活化氧化钛的光在待漂白的牙齿表面几乎不能到达氧化钛，牙齿漂白剂组由两个组分组成，其中第一组分附着到牙齿表面 并且在第二部件在牙齿表面接触之后遵循光照射，第一部件由含有氧化钛，氮掺杂的氧化钛和具有光催化活性的氮氧化钛中的至少一种的有机溶剂组成，以及 优选金属氧化物，金属盐和金属粉末，增稠剂和水中的一种或多种，​​第二组分由在水中产生过氧化氢的化合物，增稠剂和载体组成。

    Method for bleaching teeth and bleaching agent for teeth
    5.
    发明申请
    Method for bleaching teeth and bleaching agent for teeth 有权
    用于牙齿漂白牙齿和漂白剂的方法

    公开(公告)号：US20060222604A1

    公开(公告)日：2006-10-05

    申请号：US11434871

    申请日：2006-05-17

    申请人： Shin Yamaguchi ,  Toshihiro Sekiguchi ,  Keisuke Ikushima ,  Shoji Akahane ,  Koyu Aoki ,  Takeshi Morikawa ,  Takeshi Ohwaki ,  Yasunori Taga

    发明人： Shin Yamaguchi ,  Toshihiro Sekiguchi ,  Keisuke Ikushima ,  Shoji Akahane ,  Koyu Aoki ,  Takeshi Morikawa ,  Takeshi Ohwaki ,  Yasunori Taga

    IPC分类号： A61K8/29

    CPC分类号： A61K8/29 ,  A61K2800/81 ,  A61Q11/00

    摘要： A method for bleaching teeth comprises steps of applying a solution containing nitrogen-deeped titanium oxide powder on a surface of teeth, and irradiating the applied part with light to bleach the teeth based on a photocatalytic action thus produced, and a bleaching agent for teeth suitable for carrying out the method comprises a solution containing nitrogen deeped titanium oxide powder, in which the nitrogen-deeped titanium oxide is preferably a photocatalytic substance having a Ti—O—N structure having a titanium oxide crystalline lattice containing nitrogen and exhibiting a photocatalytic action in a visible light region, the bleaching agent contains preferably 0.01 to 5% by weight of the nitrogen-deeped titanium oxide powder, the nitrogen-deeped titanium oxide powder has a specific surface area of from 10 to 500 m2/g, the solution contains water and/or an alcohol as a solvent, and the bleaching agent further contains preferably 0.5 to 20% by weight of a thickener, 1 to 20% by weight of hydrogen peroxide, and 2 to, 45% by weight of urea peroxide.

    摘要翻译： 漂白牙齿的方法包括以下步骤：将含氮深二氧化钛粉末的溶液涂在牙齿表面上，并根据所产生的光催化作用照射所施用的部分以漂白牙齿，并且适合用于牙齿的漂白剂 用于实施该方法的方法包括含氮深氧化钛粉末的溶液，其中氮 - 深二氧化钛优选是具有Ti-ON结构的光催化物质，其具有含氮的氧化钛晶格并且在可见光中显示出光催化作用 亮区，漂白剂含氮优选为0.01〜5重量％，氮深二氧化钛粉末的比表面积为10〜500μm2 / g，溶液含有水和/或醇作为溶剂，漂白剂还优选含有0.5〜20重量％的增稠剂，1〜2 0重量％的过氧化氢和2〜45重量％的过氧化脲。