Patents by Inventor Hong S. Tan

Hong S. Tan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5597598
    Abstract: An antifungal composition is disclosed which comprises an antifungal agent of the polyene type, an acidific antifungal compound and an additional organic acid or its alkali or earth alkali salt. The use of this composition to treat food and agricultural products is disclosed.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: January 28, 1997
    Assignee: Gist-Brocades N.V.
    Inventors: Ferdinand T. J. van Rijn, Hong S. Tan, Martinus J. M. Warmerdam
  • Patent number: 5380992
    Abstract: A bar code signal essentially forms a cross-section of a bar code pattern which through irradiation luminesces from the background of a carrier under fluorescent action. Detection is performed by testing the bar code signal F(t) within each area (ZG1, TIS) within which a bar may be expected, against a bar criterion (THR, MTHR) obtained by prediction, with the aid of a prediction table (TABLE 1), from a local background signal value (AGR) locally derived from the bar code signal F(t). In this method use is made of the fact that, first, between the bars the background of the carrier is invariably present, making a periodical reliable background approximation from the bar code signal value possible, and, second, there is a certain correlation between a background and the additive signal contribution as a response of the bars luminescing from that background under irradiation.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: January 10, 1995
    Assignee: Koninklijke PTT Nederland B.V.
    Inventors: Jozef T. W. Damen, Hong S. Tan
  • Patent number: 4774083
    Abstract: Novel tablets comprising (a) 80 to 98% by weight of a mixture of trimethoprim and/or an acid addition salt thereof and a sulfonamide and/or a salt thereof in a weight ratio of 1:20 to 20:1 and (b) a pharmaceutically acceptable synthetic ion exchange resin having improved disintegration times and other properties and a process for their preparation.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: September 27, 1988
    Assignee: Gist-Brocades N.V.
    Inventors: Hong S. Tan, Bernardus B. M. Wegman
  • Patent number: 4711777
    Abstract: Novel tablets comprising (a) 80 to 98% by weight of a mixture of trimethoprim and/or an acid addition salt thereof and a sulfonamide and/or a salt thereof in a weight ratio of 1:20 to 20:1 and (b) a pharmaceutically acceptable synthetic ion exchange resin having improved disintegration times and other properties and a process for their preparation.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: December 8, 1987
    Assignee: Gist-Brocades N.V.
    Inventors: Hong S. Tan, Bernardus B. M. Wegman
  • Patent number: 4466121
    Abstract: Method and device for segmenting aligned characters. Each character is converted into a pattern of image elements. The image elements form columns and rows. The grey-values of the image elements are summed per column and the summed column values are put in relation with a fixed number of columns per character (1). After the outermost character position on a line has been found (2), a first segmenting process is carried out on the basis of a first probable distance between characters (3). After the segmenting process has been carried out for several different character distances (S.sub.1 -S.sub.n), the correlation factor is determined (6), by means of which the segmentation, which precedes the character recognition, is carried out.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: August 14, 1984
    Assignee: Netherlands Postal & Telecommunications Services
    Inventors: Jozef T. W. Damen, Hong S. Tan
  • Patent number: 4338342
    Abstract: A process for the treatment of fruits and vegetables to improve their shelf life and/or to decrease their loss of moisture and the fruits and vegetables treated by such a process and to compositions to be used in the said process wherein fruits and vegetables which are not over-ripe, i.e., to unripe fruits, to fruits which are just ripe or to partially ripened fruits are treated with an aqueous solution or suspension of sucrose esters of fatty acids.
    Type: Grant
    Filed: August 30, 1979
    Date of Patent: July 6, 1982
    Assignee: Gist-Brocades N.V.
    Inventors: Hong S. Tan, Dirk A. Smink
  • Patent number: 4282145
    Abstract: New azetidine derivatives of the formula: ##STR1## wherein R.sub.1 represents a penicillin- or cephalosporin-amido group, R.sub.2 represents one of the groups of the following formulae: ##STR2## wherein R.sub.4, R.sub.5 and R.sub.6 are the same or different and each represents a hydrogen atom or a lower alkyl or alkenyl group, n represents 2 or 3 and--in case formula IIB represents a phenyl group--this group may carry one to four further substituents selected from the group consisting of halogen atoms and lower alkyl, lower alkenyl and phenyl groups,R.sub.3 represents an amino group of the formula ##STR3## wherein R.sub.7 represents a hydrogen atom or a lower alkyl group and R.sub.8 represents a lower alkyl group, orR.sub.3 represents a N,N'-disubstituted hydrazino group wherein the substituents are lower alkyl groups, e.g. the N,N'-diisopropylhydrazino group, orR.sub.3 represents the group --OR.sub.9, wherein R.sub.
    Type: Grant
    Filed: October 21, 1975
    Date of Patent: August 4, 1981
    Assignee: Gist-Brocades N.V.
    Inventors: Jan Verwey, Hong S. Tan