Patents Assigned to Olympus Optical Company Limited
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Patent number: 4530106Abstract: In the disclosed device, a counter digitally counts the used or unused length of a tape, a display using a liquid crystal or the like displays the count, and a switch optionally shifts the count up or down.Type: GrantFiled: April 6, 1983Date of Patent: July 16, 1985Assignee: Olympus Optical Company LimitedInventor: Toshikazu Kato
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Patent number: 4525761Abstract: A transcriber used for repeatedly reproducing information recorded on a tape, comprised of a through-hole provided in a part of the main body of the transcriber and an eraser which has a magnet to generate magnetic flux in a prescribed direction to the through-hole.Type: GrantFiled: April 17, 1984Date of Patent: June 25, 1985Assignee: Olympus Optical Company LimitedInventor: Minoru Kobayashi
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Patent number: 4520280Abstract: An input signal containing a base line which fluctuates to a great extent is detected or restored by comparing the input signal with reference levels which are shifted in accordance with the fluctuation of base line. The input signal is sampled at a variable sampling rate and an average of sampled values for a predetermined period is derived to produce a profile signal which resembles accurately the fluctuation of the base line. The profile signal thus obtained is added to upper and lower threshold voltages to produce the reference levels which have been corrected in accordance with the fluctuation of the base line of input signal.Type: GrantFiled: August 9, 1982Date of Patent: May 28, 1985Assignee: Olympus Optical Company LimitedInventors: Shozi Yoshikawa, Hiroshi Kodama, Ken Ohsima, Masaharu Sakamoto, Kiichi Kato, Kunio Yamamiya
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Patent number: 4518247Abstract: An electrophotographic copying machine having a photosensitive drum is disclosed. Around the drum there are arranged a corona charger for uniformly charging the drum, an optical system for projecting an image of a document onto the uniformly charged drum to form an electrostatic charge latent image, a magnetic brush developing device for developing the latent image with a two component dry developing agent to form a toner image, a transferring device for transferring the toner image onto a record paper to form a duplicated copy, and a cleaning blade for collecting a residual toner on the drum to form a toner accumulation. When the cleaning blade is separated from the drum, the toner accumulation on the drum is transported toward the developing device as the drum continues to rotate and is collected into the developing device for the recovery. The cleaning blade is separated from the drum at a timing determined by a length of record papers to be used. A continuous duplication can be performed efficiently.Type: GrantFiled: June 9, 1983Date of Patent: May 21, 1985Assignee: Olympus Optical Company LimitedInventor: Masaji Nishikawa
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Patent number: 4518248Abstract: An electrophotographic copying machine having a photosensitive drum is disclosed. Around the drum there are arranged a corona charger for uniformly charging the drum, an optical system for projecting an image of a document onto the uniformly charged drum to form an electrostatic charge latent image, a magnetic brush developing device for developing the latent image with a two component dry developing agent to form a toner image, a transferring device for transferring the toner image onto a record paper to form a duplicated copy, and a cleaning blade for collecting a residual toner on the drum to form a toner accumulation. When the cleaning blade is separated from the drum, the toner accumulation on the drum is transported toward the developing device as the drum continues to rotate. Just before the toner accumulation arrives at the developing device, the toner accumulation is collected by a toner scraper in the form of a thin plate into a toner hopper.Type: GrantFiled: June 9, 1983Date of Patent: May 21, 1985Assignee: Olympus Optical Company LimitedInventor: Masaji Nishikawa
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Patent number: 4517160Abstract: An automatic analyzing apparatus for effecting chemical analyses for various sample liquids such as blood, urine, and the like, comprising a sample delivery pump for metering a sample liquid into a reaction cuvette, a reagent delivery pump for delivering to the reaction cuvette a given amount of a given reagent selected from a plurality of reagents contained in a reagent cassette, to form a test liquid, a feed mechanism for successively supplying reaction cuvettes along a circular reaction line, a plurality of photometering sections arranged along the reaction line for effecting a plurality of photometric and/or nephelometric and/or fluorometric measurements for each test liquid at different time instances to produce a plurality of photometric results, and circuitry for receiving the photometric results and selecting therefrom given quantitative analytical data of a given test item.Type: GrantFiled: January 25, 1983Date of Patent: May 14, 1985Assignee: Olympus Optical Company LimitedInventors: Kevin Galle, Ryoichi Orimo, Masahiko Sakurada, Taiichi Banno, Sugio Manabe
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Patent number: 4511935Abstract: In the disclosed tape recorder, the erase head is supplied with DC erasing current during recording and is connectable with an AC erase unit which supplies AC erasing current instead of the DC erasing current to offer high-quality recording and replay.Type: GrantFiled: November 18, 1982Date of Patent: April 16, 1985Assignee: Olympus Optical Company LimitedInventors: Yougo Imai, Hideo Takenaga
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Patent number: 4493897Abstract: An electrolyte in a sample is stably measured by using an automatic biochemical analyzing apparatus wherein a flame photometer is assembled, which comprises a sample pipetting and delivering member, a reagent liquid delivering member, reaction cups charging the sample delivered through the sample pipetting and delivering member and the reagent liquid delivered through the reagent delivering member and a flame photometer for measuring an electrolyte, the method being characterized in that with respect to a sample cup to which the measurement of electrolyte is ordered, the sample pipetting and delivering member and the reagent delivering member are operated to deliver the sample and the reagent liquid to a reaction cup and an electrolyte of the diluted sample in the reaction cup is measured by the flame photometer and with respect to a sample cup to which the measurement of electrolyte is not ordered, the sample pipetting and delivering member is not operated and into a reaction cup corresponding to said sampleType: GrantFiled: July 7, 1981Date of Patent: January 15, 1985Assignee: Olympus Optical Company LimitedInventor: Takashi Tabara
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Patent number: 4486525Abstract: The disclosed process produces a plurality of copies of an original by repeating development of the same electrostatic latent image of the original once formed on a charge retentive member and transfer of the thus developed image onto plural sheets of recording paper, wherein the development is effected by using a magnetic brush having a non-magnetic sleeve with an electrically-insulating surface layer and a two-component developer containing toner and a carrier with a volume resistivity of less than 10.sup.10 .OMEGA..multidot.cm and higher than 10.sup.7 .OMEGA..multidot.cm.Type: GrantFiled: November 12, 1981Date of Patent: December 4, 1984Assignee: Olympus Optical Company LimitedInventor: Toshihide Yamaoka
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Patent number: 4486787Abstract: An intelligent copier for readily performing image enlargement, reduction, synthesis, and editing. In the intelligent copier, an SIT (Static Induction Transistor) image sensor in which a plurality of SIT image cells are arranged two-dimensionally pixel by pixel in the same substrate is used as an image sensor for picking-up the image of a document. It is not necessary to use an expensive mass storage memory for storing the image information, because the SIT image sensor can perform a nondestructive readout, so that the copier can be made small in size and inexpensive in cost.Type: GrantFiled: August 12, 1982Date of Patent: December 4, 1984Assignee: Olympus Optical Company LimitedInventors: Nagahiro Gocho, Hitomi Tojiki, Asao Hayashi, Koji Kambara, Toru Nobuto
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Patent number: 4479580Abstract: A casing for receiving a cassette is including a casing body for receiving a tape cassette, the casing body having a rectangular opening, a lid member attached to the minor side of the opening and capable of being opened and closed, and a pair of engaging members provided to the lid and arranged at the same plane as the opening and closing direction of the lid and for regulating the position of reel hubs which are rotatably mounted to the cassette. The engaging member has a slanted portion provided at the opposite position of the tip thereof and for making the central axis of the reel hub eccentric, and a notched portion provided at the opposite position to the slanted portion and for preventing engagement to projections which are formed at the inner peripheral surface of the reel hub.Type: GrantFiled: March 23, 1983Date of Patent: October 30, 1984Assignee: Olympus Optical Company LimitedInventor: Hideo Shirako
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Patent number: 4472751Abstract: A tape recording device consisting of a main module operative as a portable tape recorder including a first tape drive system and an adapter module having a second tape driving mechanism with which the first tape drive system of the main module may be arranged in cooperative relationship when the main module is coupled with the adapter module, the second tape driving mechanism including a large inertia flywheel through with which the first tape drive system of the main module cooperates when the main module is coupled with the adapter module.Type: GrantFiled: November 24, 1981Date of Patent: September 18, 1984Assignee: Olympus Optical Company LimitedInventor: Masaaki Sato
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Patent number: 4469323Abstract: A collator includes a series of twenty bins arranged in parallel with each other. A copy feeding member feeds copies supplied from a copying machine along inlets of the successive bins. First and second deflecting devices are arranged at uppermost two bins for delivering the copies into the uppermost two bins. A distributor is movable between the third bin and the twentieth bin for delivering the copies into the bins. An extra tray is provided separately from the bins. The collator further comprises a collate mode selecting member, a job separation mode selecting member and a non-collate mode selecting member.Type: GrantFiled: July 30, 1981Date of Patent: September 4, 1984Assignee: Olympus Optical Company LimitedInventors: Kiyoshi Miyashita, Muneo Kasuga, Akira Shimizu, Fumitaka Ozeki, Hiroshi Tsuda, Katsuhiko Kimura, Nobuoto Hattori, Norio Amemiya, Masaru Yamazaki
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Patent number: 4462674Abstract: A copying apparatus of the moving document type capable of copying an optical image projected from an option or accessory device. The copying apparatus comprises an additional optical path adjacently provided to an optical path of the fixed optical system of the copying apparatus, and a shutter mechanism for opening and closing the additional optical path. The shutter mechanism is opened when the option device is added to the copying apparatus, thereby to directly project on the photosensitive member through the additional optical path an optical image formed by the option device.Type: GrantFiled: March 31, 1981Date of Patent: July 31, 1984Assignee: Olympus Optical Company LimitedInventor: Masaji Nishikawa
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Patent number: 4461967Abstract: A rotary machine having a rotating detection mechanism for detecting rotational speeds as a frequency signal is disclosed. The rotary machine comprises a rotary machine body, a disk shaped magnet tightly fitted onto a rotating shaft projected from the body, a ring shaped coil unit loosely mounted around the disk magnet for generating a frequency output corresponding to rotational speeds of the body, and a ring shaped member supporting the ring coil unit around the disk magnet.Type: GrantFiled: February 24, 1982Date of Patent: July 24, 1984Assignee: Olympus Optical Company LimitedInventor: Kazuyasu Motoyama
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Patent number: 4460269Abstract: In an automatic document feeder for use in combination with an electrophotographic copying machine for feeding documents successively into the copying machine by separating and feeding the documents one by one from a stack of documents, the stacked documents are placed on a document table and are fed by a pair of rollers into a nip portion between a rotating separation roller and a separation plate having a rubber sheet applied thereto to separate and feed documents one by one from the lowermost one, and an edge detecting sensor for detecting a front edge of a document is arranged downstream with respect to the separation roller to produce an edge detection signal. When the edge detection signal is produced, the relevant document is once stopped at the front edge detecting sensor and after a start signal for denoting the completion of a copying operation for the preceding document is supplied from the copying machine, the relevant document standing by the front edge detecting sensor is advanced.Type: GrantFiled: March 22, 1982Date of Patent: July 17, 1984Assignee: Olympus Optical Company LimitedInventors: Masaru Yamazaki, Kiyoshi Miyashita, Hideyuki Kawazu, Osamu Ishimoto
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Patent number: 4459624Abstract: A magnetic reproducing apparatus for reproducing recorded contents of a magnetic tape with the use of a reproducing head comprises a magnetic tape, a magnetic reproducing head, a tape drive mechanism, means for detecting an interlude or a cease period of a reproduced sound from a non-recorded portion of the tape, and means for compulsively maintaining the detected interlude period for a predetermined time.Type: GrantFiled: January 7, 1982Date of Patent: July 10, 1984Assignee: Olympus Optical Company LimitedInventors: Masaaki Sato, Kazumi Miyaji, Masahide Yoshida, Norio Fukuoka, Kazuo Nakasho, Kenji Furuta
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Patent number: 4458890Abstract: A stack of sheets such as documents to be fed one by one from the lowermost sheet is clamped between a lower feeding roller rotated in a given direction and an upper pressing roller whose shaft is loosely inserted in an elongated hole formed in a bearing secured to a rotatable arm. A coiled spring is connected between a free end of the arm and a fixed body of the apparatus to rotate the arm in such a manner that the pressing roller is urged against the stack of sheets with a large force due to the strong restoring force of the spring and the gravitational force of the pressing roller. A stopper plate is arranged in a rotational movement path of the arm at such a position that when a thickness of the stacked sheets has decreased to a given value, the rotation of the arm is inhibited by an engagement of the arm and stopper plate.Type: GrantFiled: March 17, 1982Date of Patent: July 10, 1984Assignee: Olympus Optical Company LimitedInventor: Hideyuki Kawazu
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Patent number: 4457993Abstract: An electrophotographic process for forming a given number of copies of an original once formed on a photosensitive member including a conductive drum, a photoconductive layer applied on the drum and an insulating layer applied on the photoconductive layer. The photosensitive member is first subjected simultaneously to a uniform exposure and a primary charging in one polarity, and then is subjected simultaneously to an imagewise exposure and a secondary A.C. charging. Next, the photosensitive member is subjected to a secondary uniform exposure with a reduced light intensity to such an extent that the charge image has an electrostatic contrast which is about 60 to 90 percent of the maximum attainable value. During the formation of copies by repeated development and transfer, the photosensitive member is subjected to an additional uniform exposure to restore the deterorated charge image.Type: GrantFiled: September 27, 1982Date of Patent: July 3, 1984Assignee: Olympus Optical Company LimitedInventor: Masaji Nishikawa
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Patent number: 4456037Abstract: A process of delivering a given amount of a sample and one or more reagents into a reaction vessel by means of a common delivery device which includes a single aspiration-discharge pump and a single probe, without contamination between samples and reagents, wherein a washing step of clearing an outer surface of the probe chip by immersing it into a wash-water, preferably a diluent, is introduced between an aspiration step and a discharge step or between the discharge step and the aspiration step.Type: GrantFiled: February 25, 1982Date of Patent: June 26, 1984Assignee: Olympus Optical Company LimitedInventor: Nagahiro Gocho