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Patent Agency Ranking
公开(公告)号：FR2314235A1
公开(公告)日：1977-01-07
申请号：FR7613466
申请日：1976-04-29
Applicant: IBM
Inventor： SAMBUCETTI CARLOS J , MITCHELL JOSEPH W
Abstract: Improvements in water based magnetic inks of the type containing non-ionic, cationic and/or anionic surfactants by the inclusion of glycerol, non-volatile solvent such as mono-lower alkyl ethers of ethylene glycol and low molecular weight polyethylene diols.
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公开(公告)号：CA1063774A
公开(公告)日：1979-10-09
申请号：CA221754
申请日：1975-03-10
Applicant: IBM
Inventor： BUSH ROBERT F , MITCHELL JOSEPH W
IPC: C01G49/02 , B41J2/01 , C01G49/00 , C09C1/00 , C09C1/22 , C09C1/62 , C09C3/06 , C09D11/00 , H01F1/34 , H01F1/36 , H01F1/44 , H01F41/16 , H01F41/20 , H04N1/23 , C01G49/08
Abstract: Fe3O4 FABRICATION PROCESS To provide magnetic particles for use in inks for ink jet printers, pure iron is subjected to an evaporation technique in a chamber evacuated down to 10-6mm. Hg and then backfilled with argon to a pressure within 0.1 to 1.0 mm. Hg. The evaporated iron particlessare captured and upon removal from the chamber oxidize immediately such that the particles obtained have a core of Fe2 and a coat of Fe3O4. The particles obtained, as required for ink jet use, have particle sizes ranging from 100.ANG. to 200.ANG. with magnetic moments in the range of 82 to 111 emu/gm.
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公开(公告)号：CA1089914A
公开(公告)日：1980-11-18
申请号：CA293407
申请日：1977-12-19
Applicant: IBM
Inventor： FAN GEORGE J , LO DAVID C , MITCHELL JOSEPH W
Abstract: VECTOR MAGNETIC INK JET PRINTER WITH STABILIZED JET STREAM A vector magnetic ink jet printer is arranged so that the ink droplets in the initial jet stream are alternately selected (i.e., magnetized) and unselected (unmagnetized). The interposition of unselected droplets between selected droplets prevents undesired magnetic interactions between selected droplets and gives them optimum spacing before they are deposited upon the recording surface, while at the same time keeping all of the droplets in sufficiently close proximity to give the stream aerodynamic stability. The gutter or catcher for unselected droplets is located between the second axial deflector (X deflector) and the recording surface. The magnetic field of the second deflector is specially shaped so that it can effectively control the trajectories of all selected droplets that have passed through the field of the first axial deflector (Y deflector), but without affecting the trajectories of unselected droplets aimed at the gutter. The selected and unselected droplets form separate substreams which have sufficient angular divergence in the X direction for enabling the unselected droplets to be guttered without excessively spreading their individual trajectories along that direction, since they are not affected by the X reflecting field, but the divergence is not great enough to disrupt the aerodynamic stabilizing action of each substream upon the other.
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公开(公告)号：CA1175883A
公开(公告)日：1984-10-09
申请号：CA374662
申请日：1981-04-03
Applicant: IBM
Inventor： MITCHELL JOSEPH W , SHAFER MERRILL W , SAMBUCETTI CARLOS J
IPC: C23C14/08 , B41J2/32 , B41J2/385 , B41J2/395 , B41J2/425 , C25D7/00 , G01D15/06 , C25B11/10 , C25B11/08
Abstract: YO979-092 ELECTROLYTIC PRINTING ELECTRODE The present invention provides an improved electrode for use in electrolytic printers. The electrode has a region which is an oxide of a metal from the group of ruthenium, iridium, platinum or an alloy thereof. The oxide region is at the extremity of the electrode which during the printing is in close proximity to the printing medium. This oxide region provides an increase in wear resistance of about two orders of magnitude over non-oxidized electrodes. Method for fabricating the described electrode is also set forth.
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公开(公告)号：FR2374167A1
公开(公告)日：1978-07-13
申请号：FR7734667
申请日：1977-11-10
Applicant: IBM
Inventor： FAN GEORGE J , LO DAVID C , MITCHELL JOSEPH W
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