Patents by Inventor Yasushi Nomura

Yasushi Nomura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4778763
    Abstract: A turntable holding a train of reaction containers thereon is continuously turned by one revolution plus an angle for a share of one container and then stopped. This makes one cycle. On the route of transfer of the reaction container, there are provided a light irradiation position and a light collection position.The reaction container into which a sample and a marker reagent have been introduced is transferred such that it does not stop at the irradiation position and the light collection position. The reaction container to which a monochromatic light for excitation has been irradiated at the irradiation position is transferred toward the light collection position. Fluorescence coming from the light collection position is lead to a photodetector, and the concentration of the target substance in the sample is determined from the detected fluorescence after arithmetic processing.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: October 18, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Kyoko Makiguchi, Yasushi Nomura
  • Patent number: 4684252
    Abstract: An automated analyzing apparatus with a photometer including an entrance slit permitting passing therethrough of the entirety or a portion of a convergent light beam transmitted successively through a plurality of sample measurement cells each containing a sample solution therein and a sensor converting the quantity of light passed through the entrance slit into a physical quantity which is an objective of measurement. A scattered light sensor is disposed between the sample measurement cells and the entrance slit at a position where the sensor is not irradiated with a straight advancing component of the light beam, whereby measurement of immunity-related tests on the basis of the intensity of scattered light can be made together with measurement of biochemical tests on the basis of the intensity of transmitted light.
    Type: Grant
    Filed: July 16, 1986
    Date of Patent: August 4, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Kyoko Makiguchi, Hisayuki Sagusa, Yasushi Nomura
  • Patent number: 4668617
    Abstract: An apparatus and method for analyzing at least two analytical items in a sample solution in a single container, wherein a series of transparent containers supported on a rotatable disc pass over a sample-receiving position, a first reagent solution-adding position, a second reagent solution-adding position, an optical path of a photometer, a solution-discharging device and a washing device. In the sample-receiving position, a fixed volume of sample is introduced into one of the transparent containers. In the first reagent solution-adding position, the first reagent solution is introduced into the transparent container, whereby a reaction is allowed to proceed. Subsequently, the container is passed across an optical path, and absorbance of light by the reaction solution is measured, to provide first measurements.
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: May 26, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiteru Furuta, Yasushi Nomura
  • Patent number: 4612289
    Abstract: In analysis of a liquid sample by adding a reagent to a liquid sample, thereby initiating reaction, and measuring a rate of the reaction, thereby quantitatively determining an analytical item being contained in the sample and taking part in the reaction, the analysis is carried out by measuring a physical quantity of the liquid sample, setting an effective limit level for the sample, then adding a reagent to the sample, measuring a physical quantity of the resulting liquid mixture, and computing the analysis value of the desired analytical value of the sample from the physical quantities so far measured before the effective limit level is reached. An exact effective limit level can be automatically set for the individual sample, and thus an analysis value can be obtained with high exactness.
    Type: Grant
    Filed: November 6, 1981
    Date of Patent: September 16, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiteru Furuta, Yasushi Nomura
  • Patent number: 4338680
    Abstract: An electronic timepiece which can provide an analog display by a pointer of time information of at least "hour" and "minute" delivered from an electromechanical time keep mechanism and can digitally display by a photoelectric display device a time information set for emitting an alarm and memorized in an alarm memory circuit is disclosed. The electronic timepiece comprises further means for electrically keeping the time information of at least "hour" and "minute", a coincidence detection circuit for detecting a coincidence of the time information delivered from the electrical time keep mechanism with the time information delivered from alarm memory circuit and an alarm emitting device for emitting an alarm signal by a coincidence signal delivered from the coincidence detection circuit.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: July 6, 1982
    Assignee: Citizen Watch Co. Ltd.
    Inventor: Yasushi Nomura
  • Patent number: 4318615
    Abstract: An automatic rate analyzing method for determining a concentration of an item in concern contained in a sample to be analyzed comprises steps of irradiating the sample with light thereby to produce a transmitted light signal at a specific wavelength, converting the transmitted light signal into a corresponding electric signal and sampling the electric signal at a given interval thereby to produce a plurality of sample values. The plurality of sample values are grouped into groups each containing a predetermined number of sample values selected for every given number of the sample values. Each of the groups is deviated from the adjacent ones by a number of sample values smaller than the given number. The sample values in each of the groups are added together to produce sums associated with each of the groups.
    Type: Grant
    Filed: April 6, 1979
    Date of Patent: March 9, 1982
    Inventors: Hisayuki Sagusa, Hiroshi Hashimoto, Yasushi Nomura, Takehide Satou, Ryohei Yabe
  • Patent number: 4313735
    Abstract: A train of cuvettes are held on a turntable and serum specimen is sequentially sampled each time the turntable makes a revolution through more than 360.degree.. While the turntable is at rest, blank solution is poured into one cuvette, reagent is put into another cuvette and reactant solution is drawn out of still another cuvette in specified positions respectively in the path along which the train of cuvettes are conveyed. During a single rotational operation of the turntable, these cuvettes sequentially transverses the light path in the photometer so that the light absorbances for the respective cuvettes are measured. Both the absorbances for cuvettes containing reactant solutions for different samples and the absorbance for a cuvette containing only the blank solution are measured by a single photometer.
    Type: Grant
    Filed: August 22, 1980
    Date of Patent: February 2, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Katsuji Yamashita, Yasushi Nomura
  • Patent number: 4302829
    Abstract: An electronic timepiece includes a primary timepiece circuit unit including a frequency supply for providing a relatively high frequency signal, a frequency converter responsive to the relatively high frequency signal to provide a relatively low frequency time unit signal, timing signals, and a plurality of word pulses indicative of a plurality of data words representing time data concerning the current time, and a set of additional data other than the time data, a timekeeping register arranged to store the time data and the additional data, and display elements for displaying the time data and the additional data. A secondary timepiece circuit unit includes a register arranged to store the additional data to be transferred to the timekeeping register.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: November 24, 1981
    Assignee: Citizen Watch Company Limited
    Inventors: Shigeru Morokawa, Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura, Keiichiro Koga
  • Patent number: 4302828
    Abstract: An electronic timepiece includes a frequency supply for providing a relatively high frequency time base signal, a circuit including a frequency converter responsive to the time base signal to provide a relatively low frequency time unit signal, and a time-keeping register responsive to the time unit signal to produce a time information signal. An input means includes an external control to provide an actuation signal when actuated, and an input signal is generated in response to the actuation signal, provision being made for selectively rendering the input signal generating means inoperative. An enabling signal is generated in response to the input signal and the time information signal, and a control responsive to the enabling signal controls the circuit means to correct the time information signal.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: November 24, 1981
    Assignee: Citizen Watch Company Limited
    Inventors: Shigeru Morokawa, Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura, Keiichiro Koga
  • Patent number: 4292680
    Abstract: An electronic timepiece includes a frequency supply for providing a relatively high frequency time base signal, a frequency converter responsive to the time base signal to provide a relatively low frequency time unit signal, and timekeeping means responsive to the time unit signal to provide current time information. The current time information is corrected and displayed. A calculation command signal is generated and enables a circuit means to produce, in response to the time unit signal, a frequency error signal indicative of an error in the frequency of the time unit signal. A gain/loss adjustment signal is generated in response to the frequency error signal, and a frequency adjusting circuit is provided for adjusting the frequency of the time unit signal in response to the gain/loss adjustment signal.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: September 29, 1981
    Assignee: Citizen Watch Company Limited
    Inventors: Shigeru Morokawa, Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura, Keiichiro Koga
  • Patent number: 4280208
    Abstract: An electronic timepiece having a battery lifetime detection mechanism is provided with a control circuit and external operation member the suitable manipulation of which permits a battery lifetime warning indication, produced in response to a signal from the detection mechanism, to be temporarily displayed in the normal time display mode, transferred to an permanently displayed in another display mode, or converted to an audible warning tone if suitable acoustic means are provided.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: July 21, 1981
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Yasushi Nomura
  • Patent number: 4276628
    Abstract: An electronic timepiece of the type of a so-called analog hand display is disclosed which displays the time by means of hands and is capable of changing the calendar display of a calendar mechanism within very short period of time by means of a reversible motor. Additionally the electronic timepiece is automatically corrected at the end of every month.
    Type: Grant
    Filed: July 25, 1978
    Date of Patent: June 30, 1981
    Assignee: Citizen Watch Company Limited
    Inventor: Yasushi Nomura
  • Patent number: 4270194
    Abstract: An electronic timepiece includes a frequency supply for providing a relatively high frequency time base signal, a frequency converter responsive to the time base signal to provide a relatively low frequency time unit signal, timing signals, and a plurality of word pulses indicative of a plurality of data words representing time data concerning the current time and additional data concerning alarm time. A timekeeping register stores the time data and the additional data and provision is made for generating a carry signal in dependence on the time data. The information in the register is altered in response to the time unit signal and the carry signal to update the time data and provision is made to write in the additional data into the register. The coincidence between the current time and the alarm time is detected by an alarm unit which generates a coincidence signal indicative thereof.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: May 26, 1981
    Assignee: Citizen Watch Company Limited
    Inventors: Shigeru Morokawa, Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura, Keiichiro Koga
  • Patent number: 4262351
    Abstract: An electronic timepiece includes a frequency supply for providing a relatively high frequency time base signal, a frequency converter responsive to the time base signal to provide a relatively low frequency time unit signal, timing signals, and a plurality of word pulses indicative of plurality of data words representing time data concerning the current time, and a set of additional data other than the time data. A primary register is arranged to store the time data and the additional data, and display means displays the time data and the additional data. An external control member is adapted to provide an input signal when actuated, and an indexing signal is generated in response to the input signal.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: April 14, 1981
    Assignee: Citizen Watch Company Limited
    Inventors: Shigeru Morokawa, Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura, Keiichiro Koga
  • Patent number: 4253172
    Abstract: An electronic timepiece of analog type display provided with alarm means and a switch for setting or cancelling said alarm means, and with an indication being given as to whether the timepiece is in the alarm set or alarm cancelled status, by modulating the advancement of the seconds hand
    Type: Grant
    Filed: November 15, 1978
    Date of Patent: February 24, 1981
    Assignee: Citizen Watch Company Limited
    Inventor: Yasushi Nomura
  • Patent number: 4246651
    Abstract: An electronic timepiece equipped with an alarm system whereby an external control member is actuated a desired number of times or for a desired time duration causing a count to be set into a first counter. Subsequently, when an alarm is generated, an identical count value must be set into a second counter by actuating an external control member for the same number of times or for an appropriate time duration in order to shut off the alarm. Possibility of the user shutting off the alarm signal and then falling asleep again is thus greatly reduced. A snooze switch control function can also be easily incorporated.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: January 20, 1981
    Assignee: Citizen Watch Company Limited
    Inventors: Yuzo Komatsu, Yasushi Nomura
  • Patent number: 4236241
    Abstract: An electronic timepiece includes a frequency supply for providing a relatively high frequency time base signal, a frequency converter responsive to the relatively high frequency time base signal to provide a timing signal, a clock signal, and a time unit signal. A timekeeping circuit is responsive to the time unit signal to provide a time information signal, and at least one of the timing signal, clock signal, and time information signal is chopped into periodic bursts to effect transfer of the at least one of the timing signal, clock signal, and time information signal from one part to another part in the timepiece. The time in response to the time information signal is displayed.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: November 25, 1980
    Assignee: Citizen Watch Company Limited
    Inventors: Shigeru Morokawa, Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura, Keiichiro Koga
  • Patent number: 4234945
    Abstract: An electronic timepiece having an acoustic hour information function in which a photosensitive switch mechanism essentially comprising a photosensitive element is provided to detect a quantity of light below a predetermined value in the surrounding environment where the timepiece is placed and control the acoustic hour information function of the timepiece depending upon the detected result.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: November 18, 1980
    Assignees: Citizen Watch Co., Ltd., Rhythm Watch Co., Ltd.
    Inventors: Yasushi Nomura, Yuzo Komatsu, Shigeru Morokawa
  • Patent number: 4228645
    Abstract: An electronic timepiece equipped with an alarm system in which a single external control member is used as both a snooze switch and an alarm stopping signal. The timepiece has a switching circuit means for generating a snooze signal when the external control member is actuated in a predetermined actuation mode and generating an alarm stopping signal when the external control member is actuated in another predetermined actuation mode. The timepiece includes a snooze control circuit responsive to the snooze signal to temporarily stop an alarm generated by an alarm device, and means for interrupting an alarm enabling signal from being applied to the alarm device to stop the alarm.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: October 21, 1980
    Assignee: Citizen Watch Company Limited
    Inventor: Yasushi Nomura
  • Patent number: 4223522
    Abstract: An electronic timepiece having a reversible stepping motor to actuate time-indicating hands to provide a time display, which comprises a driver circuit to produce driving current pulses composed of compound pulses appearing each time unit. A rotor of the stepping motor rotates a plurality of steps during each time unit to cause one of the time-indicating hands to advance through unequal intervals to provide a modulated display.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: September 23, 1980
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Yasushi Nomura, Fumio Nakajima, Kenji Yamada, Takayasu Machida