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    • 2. 发明专利
    • LASER BORING DEVICE
    • JPS63141574A
    • 1988-06-14
    • JP28662386
    • 1986-12-03
    • HITACHI LTD
    • KIMURA NOBUOKUNUGI TAKAFUMIHOSOMI NOBUYUKI
    • C12N15/09C12M1/00C12N15/00G02B27/00
    • PURPOSE:To contrive to shorten boring treatment time extremely, by setting at least one parallel plane mirror which reflects part of incident light by a first face, reflects the rest by a second face and divides the incident light into two reflected parallel incident lights in front of a lens. CONSTITUTION:Laser beam is collected by using a lens and a test specimen such as a live cell, etc., traveling relatively based on the lens is irradiated with the laser beam and bored. In the operation, at least one of parallel plane mirrors 24 and 24' which reflects part of incident light by a first face, reflects the rest by a second face and divides the incident light into two parallel reflected lights is set in front of a lens and the laser beam A sent to the lens is divided into plural laser beams A1-A4. Namely, since the laser beam is divided by the parallel plane mirror and a cell, etc., can be bored at plural positions at the same time when a stage is scanned to bore the cell, etc., and the cell, etc., is bored, a boring treatment time can be extremely shortened.
    • 4. 发明专利
    • LASER BEAM MACHINE
    • JPS62161489A
    • 1987-07-17
    • JP58086
    • 1986-01-08
    • HITACHI LTD
    • MURAKAMI SEIHOSOMI NOBUYUKIKANEKIYO HIROSHI
    • B23K26/04B23K26/03
    • PURPOSE:To provide the laser beam machine which can project a laser beam automatically on the objective position of a sample, being composed of the camera picking up the sample enlarged by a microscopic device, the laser beam source for projecting the sample and the laser beam source for reference having the same optical axis as this beam source's. CONSTITUTION:The necessary frequencies of the laser beam projected from the laser beam source 5 for machining are taken out by a frequency multiplier 4, the timing is taken by a shutter 3 and the shape is aligned by a beam shaper 2. On the other hand, the laser beam for position detection projected from the laser beam source 8 for reference having the frequency in visible zone at low energy is shaped by a beam shaper 7 and made the same optical axis as the laser beam for machining by a beam splitter 6. Said both laser beams which became in the same optical axis are controlled in their optical paths by a polarizing device 11 and projected on a sample 18 through an objective lens 17. The enlarged image of this sample 18 and the projecting spot of the laser beam for reference are picked up by a TV camera 10 and displayed on a TV camera 16. Then when an optical position on the TV 16 is indicated by the light pen 15, the prescribed signal is obtd. by the horizontal and vertical synchronizing signals coming out of the camera 10 and the photoelectric pulse out of the pen 15.
    • 7. 发明专利
    • ROTARY ATOMIZER
    • JPS5541802A
    • 1980-03-24
    • JP11359278
    • 1978-09-18
    • HITACHI LTDNIPPON CHEM PLANT CONSULTANT
    • HOSOMI NOBUYUKIMARUKO SABUROU
    • B01D53/18B01F3/04C02F3/20
    • PURPOSE:To provide a contacting apparatus which enlarges the contact area between reactants and prevents that slurry adheres to a rotor, when the slurry is formed by a reaction. CONSTITUTION:Liquid above a guide plate 8 is forcedly passed through an opening 9 and a passage formed between the guide plate 8 and a level-faced rotor 5 as shown by the arrow A by the rotation of an impeller 7. Gas is passed through the inside of an inner rotating axis 2 and emitted from a gas delivery port 11. The liquid is contacted with the gas in the edge B of the level-faced rotor 5. By the rotation of the umbrella type rotor 5, the liquid is cut off from the gas at the edge, thereby the contact area of the gas with the liquid is enlarged and the renewal of contact surface is promoted. Detergent supplied from a detergent supply port is passed through an outer rotating axis 3 and blown off by centrifugal force due to the rotation of a funnel type rotor 6 to wash the inside of the level-faced rotor 5. Thus, the addherence of slurry to the umbrella type rotor 5 can be prevented.
    • 10. 发明专利
    • PERFORATION WITH LASER AND APPARATUS THEREFOR
    • JPS63202369A
    • 1988-08-22
    • JP3328887
    • 1987-02-18
    • HITACHI LTD
    • MIYAKE AKIRAKIMURA NOBUOHOSOMI NOBUYUKI
    • C12N15/09C12M1/00C12N13/00C12N15/00G02B7/00G02B21/00
    • PURPOSE:To enable quick and automatic focusing of laser light to a surface of a biospecimen and carry out perforation of the specimen with laser, by varying the distance between a beam waist position determined on a frame of a monitor and a position on the surface of the biospecimen within a prescribed range including both positions and irradiating the biospecimen with perforation laser beam during the period of varying the distance. CONSTITUTION:The variation of the light intensity at a position indicated by a light pen 11 on a frame of a monitor TV 12 is detected by varying the distance between the beam waist position of a reference laser light 15 passed through an object lens 7 and the surface of a biospecimen 10. In the above stage, a position (focused position) coinciding the beam waist position with the surface of the biospecimen 10 is detected and a specific region including the position is designated. The distance between the beam waist position and the surface of the biospecimen is varied within said range. Since the focused state exists in the above varying range, the probability of laser beam irradiation in focused state can be improved by irradiating the biospecimen 10 with a perforation laser 1 during the varying period. As a result, the intensity of the laser light focused to the surface of the biospecimen reaches a level to enable perforation. Effective perforation of the specimen can be carried out by this process.