Patents by Inventor Mineaki Kabayama

Mineaki Kabayama 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).

  • Boehmite-type aluminum hydroxide, process for preparing same and phosphate ion adsorbent containing same as effective component
    Patent number: 5073385
    Abstract: Discosed are (i) a boehmite-type aluminum hydroxide which is represented by the formulaAlO(OH).xSO.sub.4.nH.sub.2 Owherein 0.01<.times.<0.10 and 0.ltoreq.n<1; and (ii) a process for preparing a boehmite-type aluminum hydroxide represented by the formulaAlO(OH).xSO.sub.4.nH.sub.2 Owherein 0.01<.times.<0.10 and 0.ltoreq.n<1, the process comprising surface-treating a boehmite-type aluminum hydroxide with sulfuric acid or a sulfate capable of forming sulfuric acid by heating or by hydrolysis, the boehmite-type aluminum hydroxide to be treated being represented by the formulaAlO(OH).mH.sub.2 Owherein 0.ltoreq.m<1.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: December 17, 1991
    Assignee: Tomita Pharmaceutical Co., Ltd.
    Inventors: Takeshi Suzuki, Mineaki Kabayama
  • Oral phosphate ion adsorbent
    Patent number: 4931289
    Abstract: An oral phosphate ion-adsorbing agent containing as an effective component a boehmite-type aluminum hydroxide which is represented by the formulaAlO(OH).multidot.nH.sub.2 Owherein 0.ltoreq.n<1 and which is about 0.2 to about 1.0 meq/g in the amount of active OH group present on the surface thereof and at least about 200 m.sup.2 /g in the BET specific surface area.
    Type: Grant
    Filed: November 15, 1988
    Date of Patent: June 5, 1990
    Assignee: Tomita Pharmaceutical Co., Ltd.
    Inventors: Takeshi Suzuki, Mineaki Kabayama