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公开(公告)号：US3696312A
公开(公告)日：1972-10-03
申请号：US3696312D
申请日：1970-06-30
Applicant: IBM
Inventor： KUHN LAWRENCE , SADAGOPAN VARADACHARI , TSUI ROBERT T
Abstract: Electric field controllable devices which operate on the principle of velocity change of a wave passing therethrough. These waves can be magneto-elastic or spin waves, including surface waves. The materials used in these devices include Ga2 xFexO3, Cr2O3, and YIG. When the electric field across the device is changed, the cyclotron resonance frequency of the device is greatly shifted, resulting in wave velocity changes up to about 50 percent. A bias magnetic field is generally applied across the devices to establish a resonance frequency. Devices include variable delays, modulators, frequency translators, wave guides, tunable filters, etc.
Abstract translation: 电场可控设备，其工作原理是通过其中的波速度变化。 这些波可以是磁弹性或自旋波，包括表面波。 这些器件中使用的材料包括Ga2-xFexO3，Cr2O3和YIG。 当器件的电场发生变化时，器件的回旋加速器谐振频率会大大偏移，导致波速变化达到50％左右。 通常在器件上施加偏置磁场以建立谐振频率。 设备包括可变延迟，调制器，频率转换器，波导，可调谐滤波器等
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2.发明授权Method and device for detecting the velocity of droplets formed from a liquid stream 失效用于检测从液体流形成的液滴的速度的方法和装置
公开(公告)号：US3907429A
公开(公告)日：1975-09-23
申请号：US49569674
申请日：1974-08-08
Applicant: IBM
Inventor： KUHN LAWRENCE , MYERS ROBERT A , PENNINGTON KEITH S , SHAH BANKIM R
Abstract: Droplets from a liquid stream are directed between a pair of apertures and a light source, which is strobed at a selected frequency and directed toward the apertures. In one embodiment, the apertures are spaced less than a wavelength of the droplets apart and the light source is strobed at a frequency other than the frequency of the droplets. The time between when a first of the apertures is blocked by a droplet in the stream as indicated by the light being broken during a strobe and the time when a second of the apertures is blocked by another droplet when the light source is strobed is counted. This period of time will give the velocity of the droplets, and correction of the velocity is made, if the velocity of the droplets is not at the desired velocity, by changing the pressure, for example, of the manifold supplying the liquid stream until the desired velocity is obtained. In another embodiment, the apertures are spaced from each other a wavelength or an integral of the wavelength of the droplets, and the light source is strobed at the same frequency as the frequency at which the droplets are generated. The strobing frequency has its phase changed relative to the frequency of drop generation and the pressure of the stream changed until both of the apertures are blocked simultaneously. Any deviation from this indicates that the velocity of the droplets has changed and correction must be made.
Abstract translation: 来自液体流的液滴被引导在一对孔和光源之间，该光源以选定的频率被选通并指向孔。 在一个实施例中，孔径间隔小于液滴的波长，并且光源以不同于液滴的频率的频率被选通。 在第一个孔之间的时间之间被流中的液滴阻挡，如在选通期间被断开的光所示，并且当光源被选通时，第二个孔被另一个液滴阻挡的时间被计数。 这个时间段将给出液滴的速度，如果液滴的速度不是所需的速度，则通过改变供应液体流的歧管的压力直到 获得所需的速度。 在另一个实施例中，孔彼此间隔开波长或液滴的波长的整体，并且以与产生液滴的频率相同的频率选通光源。 选通频率相对于液滴产生的频率具有相位变化，并且流的压力改变，直到两个孔同时被阻挡。 与此有任何偏差，表示液滴的速度发生变化，必须进行校正。
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公开(公告)号：CA1089912A
公开(公告)日：1980-11-18
申请号：CA270285
申请日：1977-01-24
Applicant: IBM
Inventor： BASSOUS ERNEST , KUHN LAWRENCE
Abstract: CHARGE ELECTRODE ARRAY AND COMBINATION FOR INK JET PRINTING AND METHOD OF MANUFACTURE of the Invention A charge electrode array for use in an ink jet printing apparatus is formed by anisotropic etching of apertures through a single crystal silicon substrate of (110) orientation. Conductive diffusion layers in the walls of and adjacent to the apertures permit a charge to be placed on a jet stream passing through the apertures. Contacts can be formed on the adjacent diffusion layers to provide connection to an externally located charging circuit or the contacts may be omitted when the charging circuit is formed in the substrate itself and connected by diffusion or a metal layer to each adjacent diffusion layer. Jet nozzles and synchronization electrodes are shown incorporated in the charge electrode array to form a monolithic structure capable of performing a plurality of functions. Substrate contacts are also provided for biasing.
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公开(公告)号：FR2339493A1
公开(公告)日：1977-08-26
申请号：FR7639686
申请日：1976-12-22
Applicant: IBM
Inventor： BASSOUS ERNEST , KUHN LAWRENCE
IPC: B41J2/16 , B41J2/085 , B41J2/09 , G01D15/18 , G06K15/10 , H04N1/034 , B41J3/04 , B05B5/00 , H01L23/48
Abstract: A charge electrode array for use in an ink jet printing apparatus is formed by anisotropic etching of apertures through a single crystal silicon substrate of (110) orientation. Conductive diffusion layers in the walls of and adjacent to the apertures permit a charge to be placed on a jet stream passing through the apertures. Contacts can be formed on the adjacent diffusion layers to provide connection to an externally located charging circuit or the contacts may be omitted when the charging circuit is formed in the substrate itself and connected by diffusion or a metal layer to each adjacent diffusion layer. Jet nozzles and synchronization electrodes are shown incorporated in the charge electrode array to form a monolithic structure capable of performing a plurality of functions. Substrate contacts are also provided for biasing.
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公开(公告)号：DE2602263A1
公开(公告)日：1976-07-29
申请号：DE2602263
申请日：1976-01-22
Applicant: IBM
Inventor： BASSOUS ERNEST , KUHN LAWRENCE , REISMAN ARNOLD , TAUB HOWARD H
Abstract: In an ink jet printing system, a single nozzle or an array of nozzles are etched in a semiconductor material such as silicon. Each nozzle has polygonal or N-sided entrance and exit apertures of different cross-sectional area. Preferably, the nozzle is in the shape of a truncated pyramid with the entrance and exit apertures being substantially square in cross-section. The corners of the apertures and wall interfaces may be rounded to reduce stress concentrations.
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Patent Agency Ranking
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公开(公告)号：DE2862025D1
公开(公告)日：1982-10-28
申请号：DE2862025
申请日：1978-10-02
Applicant: IBM
Inventor： DISTEFANO THOMAS HERMAN , KUHN LAWRENCE
Abstract: A xerographic printer/copier includes a photoconductor drum (4), means for producing a latent image, from an original document, on the drum and a laser beam scanning system (24, 25, 28 and 27) normally employed to produce such a latent image in response to input digital data. The system also includes a detector (30) placed adjacent the photoconductor drum at the laser scanning position. This detector is employed to produce signals representing a latent image on the drum produced by sensing the change in charge on the drum when the latent image is scanned by the laser beam (26) in an unmodulated condition.
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公开(公告)号：FR2404530A1
公开(公告)日：1979-04-27
申请号：FR7824962
申请日：1978-08-21
Applicant: IBM
Inventor： GIORDANO FRANCIS P , KUHN LAWRENCE , LANE RAMON , LEE CHEN-HSIUNG , ZIERDT GENE O
Abstract: An ink jet printing head comprising a head body made from a material having high specific stiffness and the head body includes an ink passage which is kept small to retain the high body stiffness. The ink passage comprises a narrow slot connected with internal holes in the body which lead to ink inlet and exit ports. A nozzle plate having a plurality of orifices is fixed to the front of the head body and a piezoelectric crystal is fixed to the back of the head body. The piezoelectric crystal is kept thin compared to the head thickness, typically on the order of 1/20 to 1/30 of the body thickness, so that the effect of the crystal on the resonant characteristics of the assembly is kept small. The ink jet head provides a plurality of columns or jets of ink which are excited in such a way as to break up into uniformly and equally spaced drops at a fixed distance from the nozzle plate containing the orifices which produce the jets.
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10.发明专利
公开(公告)号：CA1037541A
公开(公告)日：1978-08-29
申请号：CA242603
申请日：1975-12-24
Applicant: IBM
Inventor： BASSOUS ERNEST , KUHN LAWRENCE , TAUB HOWARD H
Abstract: JET NOZZLE STRUCTURE FOR ELECTROHYDRODYNAMIC DROPLET FORMATION AND INK JET PRINTING SYSTEM THEREWITH The practice of this disclosure obtains a monolithic structure useful for electrohydrodynamically synchronizing the formation of droplets in a jet stream exiting from a jet nozzle. The monolithic structure is primarily adaptable for ink jet printing. The jet nozzle structure provided by the practice of this disclosure includes a jet nozzle design in a crystalline semiconductor block, e.g., of silicon (Si), germanium (Ge) or gallium arsenide (GaAs), with an electrode structure which is integrally incorporated therewith whereby a variable electric field is established proximate to the orifice of the jet nozzle structure. The electric field electrohydrodynamically perturbs the jet stream emitting from the jet nozzle structure so that formation of drops in the jet stream is controllably achieved, e.g. synchronously when the variable electric field is oscillating with a given periodicity. In an exemplary practice of this disclosure, a conductive region is integrally incorporated with a jet nozzle design formed from a block or wafer or substrate of single crystalline silicon either in or on said nozzle whereby a varying electric field is established proximate to the orifice such that the jet stream is temporally and spatially influenced electrohydrodynamically by said electric field. For a particular design of the conductive region, a doped Si region in the Si substrate is utilized therefor. In the fabrication of a particular type of jet nozzle design, which utilizes a block of single crystalline silicon during the fabrication of the jet nozzle, there is included a diffused p+ region and an insulation layer which is formed either unitary therewith, e.g., by oxidation, or is formed ancillary thereto by deposition of an insulation layer. When a synchronizing signal is applied to said p+ silicon layer, an oscillating electric field is established proximate to the orifice of the jet nozzle. There is achieved by the practice of this disclosure a monolithic device for ink jet printing with a plurality of jets which are controllable either independently or cooperatively through appropriate integrated silicon semi-conductor circuitry.
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