公开(公告)号：US4831011A

公开(公告)日：1989-05-16

申请号：US231482

申请日：1988-08-12

Applicant: Yukio Oikawa ,  Kunio Okamoto ,  Takahiro Shibakawa

Inventor： Yukio Oikawa ,  Kunio Okamoto ,  Takahiro Shibakawa

IPC: B01J20/20

CPC classification number: B01J20/20

Abstract: A carbon-based adsorbent comprising active carbon provided with electron-donative surface functional groups which are bonded directly and chemically to graphite constructing the surface of the active carbon and are coordinated with metallic ions to form chelate structures, which has adsorbing power similar to that of common active carbon and additionally the ability to remove specific harmful gas molecules and smelling gas molecules from air, thus being especially effective for gas filters.

Abstract translation: 一种含有活性炭的碳基吸附剂，其具有直接和化学键合形成活性炭表面的石墨并与金属离子配位以形成螯合结构的吸电子表面官能团，其具有与 常规的活性炭，另外还有从空气中除去特定有害气体分子和气味分子的能力，因此对气体过滤器特别有效。

公开(公告)号：US4898462A

公开(公告)日：1990-02-06

申请号：US160302

申请日：1988-02-25

Applicant: Koji Numata ,  Fumio Asakura ,  Yoshiyuki Kago ,  Masaei Nozawa ,  Takahiro Shibakawa ,  Hajime Akado ,  Hideharu Kato

Inventor： Koji Numata ,  Fumio Asakura ,  Yoshiyuki Kago ,  Masaei Nozawa ,  Takahiro Shibakawa ,  Hajime Akado ,  Hideharu Kato

IPC: G01J1/44 ,  G01N21/27 ,  G01N21/85 ,  G01N33/28

CPC classification number: G01N21/27 ,  G01N33/2829 ,  G01N33/2888 ,  G01N21/85 ,  G01N2201/0231 ,  G01N2201/0621 ,  G01N2201/1212

Abstract: A device for detecting a transmissivity of a substance utilizing a transmitted light value, which comprises a light emitting element and a photo detecting element. The light emitting element and the photo detecting element are spaced from each other at a predetermined distance so that a transmitted light value of a substance passing through the space is detected as an amount of light transmitted therethrough. The photo detecting element further comprises a photo oscillator circuit including the photo detecting element as one component thereof and outputs a signal having characteristics selected from a cycle and a frequency corresponding to the transmitted light value, and when the condition of a substance exceeds a predetermined reference level, such information is displayed at a display unit. Further, the device carries out a detecting and discriminating operation when a temperature of a substance is at a level lower than a maximum temperature at which each component of the detecting circuit will not work effectively.The device is also provided with a detecting unit in which the light emitting element and the photo detecting element are kept firmly in contact with each other, with a spacer placed therebetween, by an external force caused by a spring, to make the space provided therebetween constant regardless of any deformation of any component of the device caused by heat or aging.

Abstract translation: 一种用于检测利用透射光值的物质的透射率的装置，其包括发光元件和光检测元件。 发光元件和光电检测元件以预定距离彼此间隔开，以便检测通过该空间的物质的透射光值作为透射的光量。 该光检测元件还包括一个光电振荡器电路，它包括作为其一个分量的光电检测元件，并且输出具有从与透射光值相对应的周期和频率中选择的特性的信号，并且当物质的条件超过预定参考值 这样的信息显示在显示单元上。 此外，当物质的温度处于低于检测电路的每个部件不能有效工作的最高温度的水平时，该装置进行检测和识别操作。 该装置还设置有检测单元，其中发光元件和光检测元件通过由弹簧引起的外力保持牢固地彼此接触，并且间隔件被放置在其间，以使得设置在其间的空间 恒定，不管由热或老化引起的器件的任何部件的任何变形。