Patents by Inventor Masahiko Ishitobi

Masahiko Ishitobi 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).

  • Oil-containing solid product and process for producing the same
    Publication number: 20090081292
    Abstract: An oil-containing solid in which liquid oil is contained in a large amount and from which oil seepage is slight; and a process for producing the same. The oil-containing solid is produced by impregnating a porous solid with a W/O emulsion. Further, use is made of the W/O emulsion having a water-soluble gellable substance incorporated in the water phase thereof. Consequently, the water-soluble gellable substance is converted to a gel in pores of the porous solid, thereby enhancing the liquid oil leakage preventing effect of the W/O emulsion.
    Type: Application
    Filed: June 13, 2006
    Publication date: March 26, 2009
    Inventors: Naoya Otomo, Hirotsugu Kido, Masahiko Ishitobi, Kazuyuki Nishiyama
  • Polyglycerin fatty acid esters and emulsified or solubilized compositions comprising them
    Publication number: 20060068078
    Abstract: The present invention relates to a polyglycerin fatty acid esters whose constituting fatty acid comprises not less than 70% by weight of palmitic acid and whose cloud point in a 7 wt % Na2SO4 solution at a concentration of 1% by weight is not lower than 55° C but not higher than 100° C. The said polyglycerin fatty acid esters have excellent O/W type fine emulsifying properties even under an acidic condition, capable of maintaining good flavor and also high in stability at low temperatures and suited for forming emulsified or solubilized compositions.
    Type: Application
    Filed: October 11, 2005
    Publication date: March 30, 2006
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Masahiko Ishitobi
  • Polyglycerol fatty acid ester for detergent and detergent containing the same
    Patent number: 6762159
    Abstract: The present invention relates to a detergent which comprises an aqueous solution containing not less than 2% by weight of a polyglycerol fatty acid ester and which is capable of remaining transparent for one week or more at 5° C.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: July 13, 2004
    Assignee: Mitsubisi Chemical Corporation
    Inventor: Masahiko Ishitobi
  • Polyglycerol fatty acid ester for detergemt and detergemt containing the same
    Publication number: 20020123439
    Abstract: The present invention relates to a detergent which comprises an aqueous solution containing not less than 2% by weight of a polyglycerol fatty acid ester and which is capable of remaining transparent for one week or more at 5° C.
    Type: Application
    Filed: October 16, 2001
    Publication date: September 5, 2002
    Inventor: Masahiko Ishitobi
  • Solubilizing agent and hydrosol composition obtained by using the same
    Patent number: 6005126
    Abstract: A solubilizing agent of the present invention comprises a polyglycerol fatty acid ester, an ester-constituting polyglycerol of the polyglycerol fatty acid ester comprising polyglycerol having a degree of polymerization of not less than 8 in an amount of not less than 70% by weight based on the weight of the ester-constituting polyglycerol. Such a solubilizing agent capable of solubilizing an oil-soluble material such as colorants, perfumes, vitamins, anti-oxidants, preservatives, germicides or fats and oils in an aqueous solvent, and a hydrosol composition containing the oil-soluble material solubilized in the aqueous solvent.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: December 21, 1999
    Assignee: Mitsubishiki Chemical Corporation
    Inventors: Masahiko Ishitobi, Toshiya Katsuragi, Tooru Tagawa