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1. 发明授权

US4677847A Automotive engine oil monitoring system 失效
标题翻译：汽车发动机油监控系统
公开(公告)号：US4677847A
公开(公告)日：1987-07-07
申请号：US781501
申请日：1985-09-30
申请人： Takeo Sawatari , Mitsutaka Nakamura , Toshihiro Sugiura
发明人： Takeo Sawatari , Mitsutaka Nakamura , Toshihiro Sugiura
IPC分类号： G01N33/28
CPC分类号： G01N33/2888 , F01M2011/14 , F01M2011/142 , F01M2011/1473
摘要： The present invention describes a method and apparatus for monitoring and indicating engine oil deterioration during the period of the oil's useful life in an internal combustion engine. The system and method permits a determination of the rate of deterioration of the engine oil as a function of oil temperature or RPM of the engine and provides a continous output signal representing the remaining useful life of the oil which is provided to the driver when desired. The present invention therefore, estimates the time when the oil will reach an undesirable deterioration level during the course of operation of the engine rather than indicating, as many prior art systems, only when the oil reaches an undesirable level requiring an oil change.
摘要翻译：本发明描述了一种用于在内燃机的使用寿命期间监测和指示发动机机油劣化的方法和装置。该系统和方法允许根据发动机的油温或RPM的函数确定发动机油的劣化速率，并提供表示当需要时提供给驾驶员的油的剩余使用寿命的连续输出信号。因此，本发明估计在发动机操作过程中油将达到不期望的劣化水平的时间，而不是仅仅当油达到需要换油的不期望的水平时，显示出许多现有技术的系统。

2. 发明授权

US5923423A Heterodyne scatterometer for detecting and analyzing wafer surface defects 失效
标题翻译：用于检测和分析晶圆表面缺陷的异步散射仪
公开(公告)号：US5923423A
公开(公告)日：1999-07-13
申请号：US923453
申请日：1997-09-04
申请人： Takeo Sawatari , Philip A. Gaubis , Alex Klooster , James M. Marks
发明人： Takeo Sawatari , Philip A. Gaubis , Alex Klooster , James M. Marks
IPC分类号： G01N21/94 , G01B9/02
CPC分类号： G01N21/94
摘要： A scatterometer for detecting and analyzing wafer surface defects includes a light source generating a beam of light and a photodetector. Optics are used for splitting the beam of light into a reference beam and a detection beam. Optics also direct the reference beam and the detection beam to the photodetector through different optical paths. The optics direct the detection beam to the surface of the wafer and when incident upon a defect creates a scattered beam. The optics direct the scattered beam to the photodetector. A driver moves the surface of the wafer with respect to the detection beam. A computer coupled to the photodetector determines the presence of a defect on the surface by analyzing an interference pattern from the superposition of the reference beam and the scattered beam.
摘要翻译：用于检测和分析晶片表面缺陷的散射仪包括产生光束的光源和光电检测器。光学用于将光束分成参考光束和检测光束。光学器件还通过不同的光路将参考光束和检测光束引导到光电检测器。光学器件将检测光束引导到晶片的表面，并且当入射到缺陷时产生散射光束。光学器件将散射光束引导到光电检测器。驱动器相对于检测光束移动晶片的表面。耦合到光电检测器的计算机通过分析来自参考光束和散射光束的叠加的干涉图案来确定表面上存在缺陷。

3. 发明授权

US4316191A Low angle radar processing means 失效
标题翻译：低角度雷达处理手段
公开(公告)号：US4316191A
公开(公告)日：1982-02-16
申请号：US140032
申请日：1980-04-14
申请人： Takeo Sawatari , Patrick N. Keating , Ronald F. Steinberg , Rolf K. Mueller
发明人： Takeo Sawatari , Patrick N. Keating , Ronald F. Steinberg , Rolf K. Mueller
IPC分类号： G01S3/10 , G01S7/28 , G01S3/06
CPC分类号： G01S7/28 , G01S3/10
摘要： The elevation angle of a low angle target is accurately measured by subtracting from the received radar signal signals derived from an estimated value of target elevation which reduces the resulting signal to a minimum. The estimated value is an accurate measure of target elevation.
摘要翻译：通过从接收到的雷达信号中减去所得到的信号的目标仰角的估计值中减去所得到的雷达信号信号来精确地测量低角度目标的仰角。估计值是目标仰角的准确度量。

4. 发明授权

US6141098A Fiber optic temperature sensor 失效
标题翻译：光纤温度传感器
公开(公告)号：US6141098A
公开(公告)日：2000-10-31
申请号：US167138
申请日：1998-10-06
申请人： Takeo Sawatari , Philip A. Gaubis
发明人： Takeo Sawatari , Philip A. Gaubis
IPC分类号： G01B9/02 , G02B6/00
CPC分类号： G01K11/3206 , G01K11/125 , G01K5/50
摘要： A fiber optic temperature sensor uses a light source which transmits light through an optical fiber to a sensor head at the opposite end of the optical fiber from the light source. The sensor head has a housing coupled to the end of the optical fiber. A metallic reflective surface is coupled to the housing adjacent the end of the optical fiber to form a gap having a predetermined length between the reflective surface and the optical fiber. A detection system is also coupled to the optical fiber which determines the temperature at the sensor head from an interference pattern of light which is reflected from the reflective surface.
摘要翻译：光纤温度传感器使用光源，其将光通过光纤传输到与光源相反的光纤相对端的传感器头。传感器头具有耦合到光纤端部的壳体。金属反射表面与邻近光纤端部的壳体耦合以在反射表面和光纤之间形成具有预定长度的间隙。检测系统还耦合到光纤，其从反射表面反射的光的干涉图案确定传感器头部的温度。

5. 发明授权

US5987995A Fiber optic pressure catheter 失效
标题翻译：光纤压力导管
公开(公告)号：US5987995A
公开(公告)日：1999-11-23
申请号：US895727
申请日：1997-07-17
申请人： Takeo Sawatari , Yuping Lin , Philip A. Gaubis
发明人： Takeo Sawatari , Yuping Lin , Philip A. Gaubis
IPC分类号： A61B5/0215 , A61B5/03 , G01L9/00 , A61B5/02 , G01L7/08
CPC分类号： A61B5/031 , A61B5/0215 , G01L9/0077
摘要： A fiber optic pressure catheter includes a light source, an optical fiber coupled to receive light from the light source and a sensor head that is optically coupled to the optical fiber. The sensor head has a housing defining a chamber coupled to an end of the optical fiber opposite the light source. The housing has an opening which is enclosed by a membrane. The membrane is responsive to pressure differentials between the chamber and outside the sensor head. A resilient ribbon is coupled within the chamber and has a first end fixedly coupled to a support. The ribbon has a second end that is movable in front of the optical fiber. The ribbon is mounted so that the middle portion of the ribbon touches the membrane and is biased by the membrane in response to various pressure differentials. Thus, various amounts of light are reflected back into the optical fiber based on the amount of pressure at the membrane. A detection system is optically coupled to the optical fiber which determines the pressure at the sensor head from the contrast of spectral fringes of light created by an optical coating on the end of the optical fiber and the light reflecting from the ribbon.
摘要翻译：光纤压力导管包括光源，耦合以接收来自光源的光的光纤和光学耦合到光纤的传感器头。传感器头具有限定耦合到与光源相对的光纤的端部的腔室的壳体。壳体具有由膜包围的开口。膜对腔室和传感头之间的压差有反应。弹性带连接在腔室内并且具有固定地联接到支撑件的第一端。带状物具有可在光纤前方移动的第二端。色带被安装成使得色带的中间部分接触膜并且响应于各种压力差被膜偏压。因此，基于膜上的压力量，各种量的光被反射回到光纤中。检测系统光学耦合到光纤，其根据由光纤端部上的光学涂层产生的光的光谱条纹和从带反射的光线的对比度来确定传感器头部处的压力。

6. 发明授权

US06597446B2 Holographic scatterometer for detection and analysis of wafer surface deposits 失效
公开(公告)号：US06597446B2
公开(公告)日：2003-07-22
申请号：US09815228
申请日：2001-03-22
申请人： Alex Klooster , James M. Marks , Takeo Sawatari
发明人： Alex Klooster , James M. Marks , Takeo Sawatari
IPC分类号： G01N2100
CPC分类号： G01N21/9501
摘要： A holographic scatterometer with continuous readout can rapidly identify the presence of deposits (particles or other defects) on an unpatterned wafer surface and determine the volume density (size) and location. The scatterometer can also determine chemical composition of the detected deposits. The range of the deposit (particle) size to be measured is below 80 nm, which currently existing scatterometer type instruments cannot readily detect. The inspection can be achieved as an in-line stage during the processing of wafers or in situ in combination with another processing tool or as a separate off-line analysis device.

7. 发明授权

US5870511A Fiber optic temperature sensor 失效
公开(公告)号：US5870511A
公开(公告)日：1999-02-09
申请号：US791025
申请日：1997-01-27
申请人： Takeo Sawatari , Philip A. Gaubis , Brenton L. Mattes , Clark J. Charnetski
发明人： Takeo Sawatari , Philip A. Gaubis , Brenton L. Mattes , Clark J. Charnetski
IPC分类号： G01B9/02 , G02B6/00
CPC分类号： G01K11/3206 , G01K11/125 , G01K5/50
摘要： A fiber optic temperature sensor uses a light source which transmits light through an optical fiber to a sensor head at the opposite end of the optical fiber from the light source. The sensor head has a housing coupled to the end of the optical fiber. A metallic reflective surface is coupled to the housing adjacent the end of the optical fiber to form a gap having a predetermined length between the reflective surface and the optical fiber. A detection system is also coupled to the optical fiber which determines the temperature at the sensor head from an interference pattern of light which is reflected from the reflective surface.

8. 发明授权

US4119940A Underwater viewing system 失效
标题翻译：水下观景系统
公开(公告)号：US4119940A
公开(公告)日：1978-10-10
申请号：US733509
申请日：1976-10-18
申请人： Patrick N. Keating , Roger F. Koppelman , Takeo Sawatari
发明人： Patrick N. Keating , Roger F. Koppelman , Takeo Sawatari
IPC分类号： G01S7/521 , G01S15/00 , G01S15/89 , G03H3/00 , G01S9/66
CPC分类号： G03H3/00 , G01S15/89 , G01S15/8952 , G01S15/8977
摘要： An underwater viewing system described herein substantially reduces the number of hydrophones in the receiving array and associated circuitry by providing a plurality of transmitting transducers spaced apart by a known distance, each emitting a coded output which is normally a separate frequency. The receiving array, which is preferably square or rectangular, includes a substantial number of receiving hydrophones.A synthetic aperture technique is applied in which the reflected signal arriving at each individual hydrophone is amplified, modulated with a lower frequency reference signal, filtered, digitized and stored in a memory, preferably as part of a computer. The computer also compares each digitized hydrophone signal against sine and cosine reference signals at each frequency and performs a Fourier analysis of each row and column to reconstruct a primary image. It also computes spatial modulation through complex multiplication, addition and subtraction and, through this, reconstructs adjacent images for each transducer frequency such that the ultimate image synthesized and displayed is one in which the effective number of image points is like that of a system in which the number of hydrophones is the actual number multiplied by the number of different transmitted frequencies.
摘要翻译：本文描述的水下观察系统通过提供间隔开已知距离的多个发射换能器，大大减少了接收阵列和相关电路中的水听器的数量，每个发射换能器发射通常为单独频率的编码输出。接收阵列（其优选地是正方形或矩形）包括大量的接收水听器。

9. 发明授权

US4017188A Surface profile measuring device and method 失效
标题翻译：表面轮廓测量装置及方法
公开(公告)号：US4017188A
公开(公告)日：1977-04-12
申请号：US553332
申请日：1975-02-26
申请人： Takeo Sawatari
发明人： Takeo Sawatari
IPC分类号： G01B11/00 , G01B11/24 , G01B11/245 , G01B11/30
CPC分类号： G01B11/303
摘要： An arrangement for measuring the profile of surfaces having a characteristic one-directional lay with sufficient resolution to determine the surface roughness thereof is disclosed, comprising a device for illuminating a small spot on the surface, with an image of the spot projected through an objective lens onto a large area light detector positioned to generate a signal corresponding to the total illumination produced by the image. The device also includes a second light detector which views a second image of the spot focused by the objective lens through a slit disposed perpendicularly to the direction of the surface lay. The respective detector signals are divided to produce signals corresponding to the ratio thereof, which, according to the present invention, correspond to the variations of the surface height occuring as the illuminated spot is scanned across the surface. A graphical profile of the surface may be obtained by recording these signals as a function of the scanned distance.
摘要翻译：公开了一种用于测量具有足够分辨率以确定其表面粗糙度的特征性单向布置的表面的轮廓的布置，其包括用于照射表面上的小斑点的装置，其中通过物镜投射的斑点的图像定位成产生对应于由图像产生的总照明的信号的大面积光检测器。该装置还包括第二光检测器，其通过垂直于表面铺设方向设置的狭缝来观察由物镜聚焦的光斑的第二图像。相应的检测器信号被分割以产生对应于其比例的信号，根据本发明，这些信号对应于当照射的点扫过表面时发生的表面高度的变化。可以通过将这些信号记录为扫描距离的函数来获得表面的图形轮廓。

10. 发明授权

US06868736B2 Ultra-miniature optical pressure sensing system 失效
标题翻译：超微型光学压力传感系统
公开(公告)号：US06868736B2
公开(公告)日：2005-03-22
申请号：US10371871
申请日：2003-02-21
申请人： Takeo Sawatari , Alex Klooster , Dean M. Aslam , Yuping Lin , James Marks
发明人： Takeo Sawatari , Alex Klooster , Dean M. Aslam , Yuping Lin , James Marks
IPC分类号： G01L7/08 , G01L9/00 , G02B6/32 , G02B6/38 , G01L1/24 , F16C11/00
CPC分类号： G02B6/3869 , G01L9/0042 , G01L9/0047 , G01L9/0077 , G02B6/32 , G02B6/3855
摘要： The fiber optic pressure sensing system includes a sensor housing formed using MEMS processing. The sensor housing has ribs and grooves in both horizontal and vertical directions relative to the surface to allow the membrane to flex in a consistent manner. The flexing of the membrane allows the pedestal to be repeatedly positioned in response to pressure acting on the extension of the sensor head and membrane.
摘要翻译：光纤压力传感系统包括使用MEMS处理形成的传感器外壳。传感器外壳在水平和垂直方向上具有相对于表面的肋和槽，以允许膜以一致的方式弯曲。膜的弯曲允许基座响应于作用在传感器头和膜的延伸部上的压力而重复定位。

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