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Assignee: Seiko Instruments Inc.


Location: Tokyo, JP
No. of patents: 160

1        
NumberTitleIssue Date
6886990Optical connector
An optical connector has a ferrule comprises of a cylindrical body for supporting an optical fiber, and a flange member having an end portion connected to a first end of the cylindrical body and a flange part projecting from the end portion. A holding member support...
05/03/2005
6437541Battery state monitoring circuit and battery device
A battery state monitoring circuit in a battery device has a structure such that both of a detection delay when the battery device enters the respective protective states of over-charge, over-discharge and over-current, and a release delay when the batter...
08/20/2002
6081480Semiconductor integrated circuit
Writing of unwanted data is inhibited if signals other than a required number of clocks are applied for a program for a memory. A program control circuit 1 delivers a write-starting instruction. A clock number-detecting circuit 2 for detecting a given number o...
06/27/2000
6061425Coating thickness gauge by X-ray fluorescence
In order to automatically measure the thickness of coatings on a sample, a plurality of calibration curves are stored in a memory circuit beforehand, and X-ray fluorescence generated by irradiation of the sample with primary X-rays is detected by an X-ray...
05/09/2000
5925574Method of producing a bipolar transistor
A method of producing a bipolar transistor composed of collector, base and emitter regions disposed sequentially on a semiconductor substrate. According to the method, a semiconductor layer is deposited on the collector region, the semiconductor layer is ...
07/20/1999
5906582Organism information measuring method and arm wear type pulse-wave measuring method
An organism information measuring method and an arm wear type pulse-wave measuring method having a sensor unit having a size that does not cause any inconvenience to a user when the user is doing an exercise, such as jogging, so that information about an ...
05/25/1999
5854758Fast fourier transformation computing unit and a fast fourier transformation computation device
To provide FFT computing units, FFT computation devices, and pulse counters that can achieve computational precision using the smallest possible circuit size. FFT computing unit 602 comprises a data shift circuit for standardizing FFT computation target d...
12/29/1998
5793402Thermal transfer recording method and apparatus of both sublimation type and fusion type
An image recording method and apparatus employing a thermal head capable of making a sublimation type thermal transfer recording and a fusion type thermal transfer recording by means of the same thermal head. This apparatus sets its vertical printing pitc...
08/11/1998
5786615Junction field-effect transistor (JFET) semiconductor integrated circuit device including JFET
A plurality of JFETs (junction field-effect transistors) can be formed on the same substrate while being electrically separated from each other, and can be also combined with a CMOS (complementary metal-oxide semiconductor). A P- type Si layer ...
07/28/1998
5759156Period and frequency measurement device with correction device and method thereof
A period and frequency measurement device is provided having a sensor for measuring pulse waves and body movements. A window determination circuit sets a reference value in accordance with previously measured pulse waves and body movements and determines ...
06/02/1998
5744379Semiconductor device composed of plural semiconductor chips and coupling means which couple the semiconductor chips together
The semiconductor image sensor device of the multiple chip mount type is constructed such that electrical and mechanical connections are carried out concurrently among chips. Coupling chips 4 are utilized to couple a plurality of semiconductor image senso...
04/28/1998
5739542X-ray analyzing
An X-ray analyzing apparatus having high sensitivity and high position resolving power in which an X-ray fluorescent screen made of Gd2 O2 S:Tb as a material and having a surface density ranging from 5 mg/cm2 to 30 mg/cm
04/14/1998
5612987X-ray analyzing apparatus
An X-ray analyzing apparatus having high sensitivity and high position resolving power in which an X-ray fluorescent screen made of Gd2 O2 S:Tb as a material and having a surface density ranging from 5 mg/cm2 to 30 mg/cm
03/18/1997
5599104Thermal analysis instrument
The temperature of a heat reservoir is varied according to a linear function which is AC modulated. At this time, the temperature difference between two points located in a heat flow path going from the heat reservoir to an unknown sample is measured. Als...
02/04/1997
5588746Apparatus for thermal analysis
In order to carry out thermal analysis under various kinds of atmospheres, there is provided an apparatus for thermal analysis containing a sample chamber having a portion for a sample and a signal detection chamber provided with a signal detection member...
12/31/1996
5574280Focused ion beam apparatus and method
A sample semiconductor device which is processed and/or observed with the focused liquid metal ion beam can be returned again to the manufacturing process in this invention. The metal ions used in this apparatus are generally Ga ions. Ga ions contaminate ...
11/12/1996
5567920Position reading apparatus and key board apparatus
A position reading apparatus and keyboard apparatus using a feedback loop for inputting positional information into an external device. A pointer having a resonant circuit is used to establish a feedback loop having as part of the feedback loop a first co...
10/22/1996
5532185Impurity doping method with adsorbed diffusion source
The surface of a silicon wafer is cleaned to expose chemically active surface. Diborane gas is fed to the exposed active surface for adsorbing boron to the active surface. The adsorbed boron on the silicon wafer works as an impurity diffusion source. Boro...
07/02/1996
5530938Non-volatile memory card device having flash EEPROM memory chips with designated spare memory chips and the method of rewriting data into the memory card device
A memory card device and method of rewriting the same which require no separate memory for saving all data in a chip containing data to be rewritten, and in which data are not lost due to a power source failure that may occur during writing operation. Eac...
06/25/1996
5527733Impurity doping method with adsorbed diffusion source
For effecting impurity doping, a chemically active semiconductor surface is covered with an adsorption layer composed of an impurity element which forms a dopant in the semiconductor or composed of a compound containing the impurity element. Thereafter, s...
06/18/1996
5525806Focused charged beam apparatus, and its processing and observation method
To process sample of specific portion or position for the transmission electron microscope [TEM] simply to the most suitable or optimal shape, and to confirm the sample thickness of the sample while processing above (on-going confirmation). To make TEM sa...
06/11/1996
5514620Method of producing PN junction device
A PN junction device is formed by removing an inert film from a surface of an N type semiconductor layer to expose an active face, then applying a source gas containing an P type impurity component to the active face to form an impurity adsorption film, a...
05/07/1996
5506400Scanning type probe microscope
In a scanning type probe microscope, a semiconductor laser LD is driven by a current having a value not more than an oscillation threshold value using a constant current circuit for weak light, and weak light is used to perform positional adjustment of th...
04/09/1996
5489339Microelectronic processing machine
An electrode capable of pushing against a silicon substrate with a constant force is mounted inside a vacuum chamber or a gas-replacing chamber. A bias voltage source can supply a given electrical current between the silicon substrate and the electrode. A...
02/06/1996
5484252Sample holding apparatus
In a sample holding apparatus including a main body, a holding body movably provided to the main body, a spring disposed to urge the main body and the holding body toward one another, pins fixed to the main body and the holding body for holding a sample, ...
01/16/1996
5483496Nonvolatile memory device having a timer circuit
When execution of a program is interrupted during erasure or writing, electric charge normally remains due to high voltage. This charge is electrically discharged to thereby prevent erroneous erasure, erroneous writing, and erroneous reading. It comprises...
01/09/1996
5481388Liquid crystal electro-optical device having columnar glass fibers and glass balls in the sealing portion
A uniform gap thickness is maintained in a liquid crystal cell by introducing, into a sealing portion of the cell, between two substrates, glass balls having a diameter substantially equal to the desired gap space between the substrates and columnar glass...
01/02/1996
5477049Particle analysis method
Using a scanning type electron microscope, a spot where a particle is detected is determined by acquiring the evaluation of detection of particles on the surface of a wafer, etc., based on the coordinate information of a particle spot, by particle detecti...
12/19/1995
5477048Inductively coupled plasma mass spectrometer
An inductively coupled mass spectrometer for detecting impurities present in infinitesimal concentrations in a sample. The basic spectrometer structure includes: a nebulizer connected to receive a solution of the sample and a gas for causing the nebulizer...
12/19/1995
5466066Thermogravimetric apparatus with a balance arm vibrating function
In a thermogravimetric apparatus which is composed of a balance-arm 1, a detector 2 for detecting an amount of deviation of the balance-arm 1, a control circuit 3 for controlling equilibrium of the balance, and a driving part 6 for moving the balance-arm ...
11/14/1995
5467120Thermal transfer recording method and apparatus of both sublimation type and fusion type
An image recording method and apparatus employing a thermal head capable of making a sublimation type thermal transfer recording and a fusion type thermal transfer recording by means of the same thermal head. This apparatus sets its vertical printing pitc...
11/14/1995
5457725Analyzing method for foreign matter states
A method for identifying foreign matter in or on a sample, using apparatus composed of an X-ray generator, an X-ray detector, and a sample stage having a tilting mechanism capable of fixing a sample and changing both its irradiation and detection angles a...
10/10/1995
5454021X-ray mirror and material
An x-ray mirror material of high reflectance with a surface roughness which is very small and a high film density, the material being a Pt alloy film provided as a mirror surface for reflecting x-ray radiation. The composition of the mirror material is ex...
09/26/1995
5452614Dynamic viscoelasticity apparatus
Phase delay, amplitude and the like of sinusoidal strain (stress) are detected with high precision, and also adverse influences caused by expansion, shrinkage, stress relaxation, and creep of a sample are removed by a simple correction term by way of a ma...
09/26/1995
5448524Semiconductor memory device
An object is to enable a semiconductor integrated circuit device to perform the second action, without waiting for the first action to finish after the first action starts. Aside from a resistor containing input signal pulses, an input signal pulses recog...
09/05/1995
5448504Apparatus for thermal analysis
A CPU 8 computes differential data of thermal analysis data in a data memory 9a, stores the differential data in a differential data memory 9b, scans secondary differential data, and detects the crossing point of a set differential width as a peak point. ...
09/05/1995
5444245Method of automatically setting coordinate conversion factor
A method of automatically setting a coordinate conversion factor in which, under the condition where a sample having a simple contour, such as a wafer with a known contour, is installed in a shape observing unit, in order to determine the conversion facto...
08/22/1995
5442949Thermal analyser
In a gas scavenging unit for gas chromatography analysis of gas generated in a thermal analyzer, the thermal analyser is equipped with a gas scavenging unit for scavenging gas generated in the thermal analyzer without usage of a carrier gas and no influen...
08/22/1995
5442440Spectroscope
A spectroscope or spectrometer for detecting a driving position of a main wavelength dispersive device using a diffraction line produced in that light from a light source having a narrow wavelength bandwidth is incident on a sub-wavelength dispersive devi...
08/15/1995
5440122Surface analyzing and processing apparatus
A surface analyzing and processing apparatus analyzes the surface of a sample by detecting secondary electrons, secondary ions, and the like coming out from the surface of the sample while exciting the surface of the sample by means of a probe of an atomi...
08/08/1995
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