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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Kobayashi; Masatsune
Address:
Yokohama, JP
No. of patents:
31
Patents:












Patent Number Title Of Patent Date Issued
6318842 Liquid jet printing head and liquid jet printing apparatus provided with said liquid jet printin November 20, 2001
A liquid jet printing head includes a discharging outlet for discharging printing liquid, an energy generating element capable of generating an energy for discharging the liquid through the discharging outlet and a discharging outlet face at which the discharging outlet is arranged,
5758417 Method of manufacturing an ink jet head having a coated surface June 2, 1998
An ink jet recording head is formed by forming a solid layer of removable material on a substrate to enable formation of flow paths and liquid chambers, coating a surface of the solid layer with a resin and removing the solid layer. The coating is performed by providing a mold, part of
5735729 Abrasive composition with an electrolytic water and a polishing process with the use of said abr April 7, 1998
An abrasive composition comprising abrasive grains of an inorganic material dispersed in a dispersion medium, characterized in that said dispersion medium contains an electrolytic water. A process for polishing an object using said abrasive composition.The abrasive composition enables to
5542970 Monoazo compound and recording liquid containing the same August 6, 1996
A monoazo compound of the general formula ##STR1## wherein; Y is hydrogen, methyl, methoxy, acetylamino, or nitro, or Y, cojointly with the carbon atom located in the benzene ring B at the 3-position with respect to the N.dbd.N group, may form a benzene ring; X is acetyl, benzoyl
5436650 Ink jet recording head, process for producing the head and ink jet recording apparatus July 25, 1995
An ink jet recording head comprises an ink path communicating with an orifice for discharging an ink, and energy-generating means for generating energy to be utilized for discharging the ink from the orifice, provided along the ink path, wherein a base member provided with the energy
5334999 Device for preparing ink jet recording head with channels containing energy generating elements August 2, 1994
A process for preparing an ink jet recording head, comprises: the step for providing a first material which is volatilized by imparting an active energy in a layer on a substrate; the step for patterning the layer of said first material by imparting said active energy to the layer of sai
5296022 Ink-jet recording method and apparatus employing ink containing halogenated alkanol with 2 to 4 March 22, 1994
An ink-jet method and apparatus employing an ink comprising a dye and a liquid medium for dissolving or dispersing a dye, wherein the liquid medium comprises an alkyl alcohol having 2 to 4 carbon atoms, in which at least one of the hydrogen atoms is substituted by a halogen atom.
5258066 Ink containing halogenated alkanol with 2 to 4 carbon atoms, recording method and apparatus usin November 2, 1993
An ink comprising a dye and a liquid medium for dissolving or dispersing a dye, wherein the liquid medium comprises an alkyl alcohol having 2 to 4 carbon atoms, in which at least one of the hydrogen atoms is substituted by a halogen atom.
4867789 Flocculant purification of ink September 19, 1989
A method for purifying a dye solution is provided. The method comprises the steps of dissolving an impure dye in a solvent. A flocculant is then added to the dye solution in order to flocculate the imprity so that the impurity may then be removed from the solution. A method for producing
4841037 Amino sulfonaphtholtrisazo compounds and recording liquids containing the same June 20, 1989
A naphthalene trisazo compound represented by the general formula (I) or (II): ##STR1## wherein A and B each represents a substituted or unsubstituted benzene or naphthalene ring; m represents zero or 1; and M represents an alkali metal atom, ammonium or H.Am (wherein Am represen
4778525 Recording liquid October 18, 1988
A liquid composition is provided which contains a water-soluble dye and a solvent, wherein said liquid composition has a lyophobic colloid concentration of 13 ppm or less. An ink-jet recording method is also provided which employs an ink comprising the liquid composition.
4765838 Water-soluble dye composition and recording liquid containing the same August 23, 1988
A black recording liquid suitable for use in ink-jet recording or as an ink for writing instruments comprises at least two water-soluble dyes and a liquid medium. Each of the dyes satisfies the condition defined by the following expression [I], and a mixture of these dyes satisfies the
4756757 Recording liquid July 12, 1988
In a recording liquid comprising, as essential components, a colorant in an amount necessary to image formation, water, an a water-miscible organic solvent, said recording liquid is characterized in that the total number of colonies in the Ames test thereof is not more than four times th
4732613 Recording liquid March 22, 1988
A liquid composition is provided which contains a water-soluble dye and a solvent, and the liquid composition has a total concentration of divalent and higher valent metals at 20 ppm or less, and a magnesium concentration is preferably 4 ppm or less. An ink-jet recording method employing
4724001 Disazoic dye and recording liquid containing the same February 9, 1988
A naphthalenedisazoic dye represented by general formula (I); ##STR1## wherein Q represents ##STR2## or a naphthalene group substituted by --SO.sub.3 M; R represents a methyl group, a methoxy group, an ethoxy group; X represents a hydrogen atom, a phenyl group substituted by
4683002 Liquid composition and method for recording July 28, 1987
A liquid composition comprising a water-soluble dye is provided. The composition contains iron and silicon at a concentration of 9 ppm or less. A method for recording with liquid droplets formed from the liquid composition is also provided. Further, a water soluble dye for the liquid
4661158 Recording liquid April 28, 1987
A recording liquid mainly comprises a recording agent as an image-forming component and a liquid medium containing at least water and a glycol for dissolving or dispersing the recording agent, characterized in that the recording agent contains at least one of dyes represented by the foll
4655835 Process for evaluating the solubility of a colorant April 7, 1987
In a recording liquid comprising, as essential components, a colorant in an amount necessary to image formation, water, and a water-miscible organic solvent, said recording liquid is characterized in that the total number of colonies in the Ames test thereof is not more than four times t
4655834 Recording process April 7, 1987
In a recording liquid comprising, as essential components, a colorant in an amount necessary to image formation, water, and a water-miscible organic solvent, said recording liquid is characterized in that the total number of colonies in the Ames test thereof is not more than four times t
4632703 Recording liquid December 30, 1986
A recording liquid comprises a recording agent, water and a water-soluble organic solvent as essential components, wherein said recording agent comprises at least one of the dyes represented by the formula (A) shown below: ##STR1## (wherein [Ph] represents a phthalocyanine skelet
4627875 Recording liquid December 9, 1986
A recording liquid comprises C.I.Acid Red 8 as a recording agent for forming an image and a liquid medium comprising at least(a) a member selected from the group consisting of polyethylene glycol, polyethylene glycol mono methylether and a mixture thereof,(b) a member selected from the group
4599112 Recording liquid July 8, 1986
A recording liquid containing as a coloring component a copper phthalocyanine dye having at least one alkali metal sulfonate substituent is provided. The recording liquid is characterized in that the ratio of the integrated peak areas (A/B) in a liquid chromatogram of said dye is at
4557761 Recording liquid December 10, 1985
A recording liquid comprising coloring matter, which is an image-forming component, and a liquid medium for dissolving or dispersing the coloring matter, the recording liquid being characterized by containing at least one of the dyes represented by the following general formula (A), as a
4517244 Recording medium and ink jet recording paper May 14, 1985
A recording material comprises a base material containing a highly water-absorptive resin and being in the form of a film.
4505749 Method of forming color images March 19, 1985
In a process for forming color images using more than one kind of color ink including black ink, the dyes in the color ink used have similar chromatographic characteristics. Preferably any difference of the Rf value of paper chromatography between any of the two dyes is not more than 0.3
4435717 Liquid jet recording process and recording liquid therefor March 6, 1984
A liquid jet recording process comprising exerting thermal energy to a recording liquid to form liquid droplets and performing recording with these liquid droplets, is characterized in that said recording liquid comprises at least a dye having in the molecule 1 to 5 members selected
4395287 Liquid recording material July 26, 1983
A liquid recording material comprises a recording agent for forming a recording image and a liquid vehicle for dissolving or dispersing said recording agent therein and is characterized in that a polyalkylene glycol having an average molecular weight of 150 to 350 (A component) and a
4391639 Recording liquid July 5, 1983
A recording liquid is characterized by containing as a dye a compound represented by the formula ##STR1## wherein R.sub.1 represents hydrogen or C.sub.1 -C.sub.2 alkyl, R.sub.2 and R.sub.3 each represent hydrogen, C.sub.1 -C.sub.2 alkyl, or C.sub.1 -C.sub.2 alkoxy, R.sub.4 and R.
4306245 Liquid jet device with cleaning protective means December 15, 1981
A liquid jet recording device is provided with a cleaning protective means for cleaning and protecting the orifice. This means is provided at a reset position lying at one end of the scanning shaft of the device.
4285575 Image display device August 25, 1981
An image display device comprises a cell container, at least a pair of electrodes, an electrically responsive electrochromic medium accommodated in said cell container, said electrochromic medium comprising a complexon, Fe.sup.2+ ion and at least one metal ion other than Fe.sup.2+ ion.
4212518 Image display device July 15, 1980
An image display device comprises in combination:a cell container,at least a pair of electrodes,an electrically responsive electrochromic medium accommodated in said cell container, said electrochromic medium comprising a complexion.










 
 
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