公开(公告)号：US4860497A

公开(公告)日：1989-08-29

申请号：US105223

申请日：1987-10-07

申请人： Seiji Ohya ,  Tetsuro Harada

发明人： Seiji Ohya ,  Tetsuro Harada

IPC分类号： B24B3/28 ,  B24B3/24 ,  B24B3/26

CPC分类号： B24B3/247 ,  Y10T279/17538 ,  Y10T279/29

摘要： A drill grinder for grinding a point of a drill including a shank, and a body which has the point. The drill grinder includes a holding device for removably holding the drill, and a grinding wheel adapted to be forced on the drill point, and to thereby grind the point while the drill is held by the holding device. The holding device includes a first chuck for gripping the shank of the drill, and a second chuck for gripping the body of the drill. The grinder has a holder mounting device for removably holding the holder device during a grinding operation on the drill by the grinding wheel. The grinder may further includes a drill setting device for removably accommodating the holding device, to position the drill in a predetermined circumferential position relative to the second chuck, prior to the grind operation.

摘要翻译： 一种用于研磨钻头的钻头的钻孔研磨机，其包括柄部和具有该点的主体。 钻孔研磨机包括用于可拆卸地保持钻头的保持装置和适于被迫在钻头上的砂轮，并且由此在钻具被保持装置保持的同时研磨点。 保持装置包括用于夹持钻头的柄部的第一卡盘和用于夹持钻头本体的第二卡盘。 研磨机具有用于在研磨操作期间通过砂轮在钻头上可拆卸地保持夹持装置的保持器安装装置。 研磨机还可以包括用于在研磨操作之前可拆卸地容纳保持装置的钻孔定位装置，以将钻头相对于第二夹头定位在预定的圆周位置。

公开(公告)号：US08377274B2

公开(公告)日：2013-02-19

申请号：US12463625

申请日：2009-05-11

申请人： Seiji Ohya ,  Tomohiro Wakazono ,  Kenji Kato ,  Koji Shiotani

发明人： Seiji Ohya ,  Tomohiro Wakazono ,  Kenji Kato ,  Koji Shiotani

IPC分类号： G01N27/407

CPC分类号： G01N27/4075

摘要： A gas sensor including a gas sensor element having a first measurement chamber (16); a first pumping cell (11); a second measurement chamber (18) into which a gas to be measured having a controlled oxygen partial pressure is introduced; and a second pumping cell (13) having a second inner pump electrode (13b) and a second counterpart electrode (13c) pump electrode configured to detect a specific gas component. The second inner pump electrode is made of a material that contains, as a principal ingredient, two kinds of Pt particles having different particle sizes and whose particle size ratio measured by a sedimentation particle-size distribution ranges from 1.75 to 14.2. A mixing ratio between large Pt particles and small Pt particles has a mass ratio of 10/90 to 50/50. A 10 kHz-1 Hz resistance value across the second pumping cell at 600° C. is 150Ω or less.

摘要翻译： 一种气体传感器，包括具有第一测量室（16）的气体传感器元件; 第一泵送单元（11）; 引入具有受控氧分压的待测气体的第二测量室（18）; 以及具有第二内泵电极（13b）和配置成检测特定气体成分的第二配对电极（13c）泵浦电极的第二泵浦电池（13）。 第二内泵电极由含有不同粒径的两种Pt颗粒作为主要成分的材料制成，其沉降粒度分布测定的粒径比为1.75〜14.2。 大Pt颗粒和小Pt颗粒之​​间的混合比的质量比为10/90至50/50。 在600℃下跨越第二抽滤单元的10kHz-1Hz电阻值为150＆OHgr; 或更少。

公开(公告)号：US08118985B2

公开(公告)日：2012-02-21

申请号：US12417074

申请日：2009-04-02

申请人： Seiji Ohya ,  Tomohiro Wakazono ,  Takashi Nakao ,  Hisashi Sasaki ,  Koji Shiotani

发明人： Seiji Ohya ,  Tomohiro Wakazono ,  Takashi Nakao ,  Hisashi Sasaki ,  Koji Shiotani

IPC分类号： G01N27/41

CPC分类号： G01N27/419 ,  G01N27/4067

摘要： A gas sensor (200) has a gas sensor element (10) including a first measurement chamber (16); a first pumping cell (11) having a first interior pump electrode (11c) and its counterpart electrode (11b); a second measurement chamber (18); a second pumping cell (13) that has a second interior pump electrode (13b); and a beater (50). The heater (50) has a lead section (50a); a first resistance portion (50bx) having a higher resistance than the lead portion (50a); and a main heating portion (50k) having a second resistance portion (50by) having a higher resistance than the first resistance portion (50bx) disposed at a leading end side in a longitudinal direction relative to a leading end of the first resistance portion (50bx). The second interior pump electrode (13b) is located within the first resistance portion (50bx) in the longitudinal direction.

摘要翻译： 气体传感器（200）具有包括第一测量室（16）的气体传感器元件（10）。 具有第一内部泵电极（11c）和其对应电极（11b）的第一泵送单元（11）; 第二测量室（18）; 具有第二内部泵电极（13b）的第二泵浦单元（13）; 和打浆机（50）。 加热器（50）具有引线部（50a）; 具有比引线部分（50a）更高的电阻的第一电阻部分（50bx）; 和具有比第一电阻部分（50bx）高的第二电阻部分（50by）的主加热部分（50by），该第二电阻部分设置在相对于第一电阻部分（50bx）的前端的纵向方向上的前端侧 ）。 第二内部泵电极（13b）在纵向方向上位于第一电阻部分（50bx）内。