Patents by Inventor Tatsuichi Iwamura

Tatsuichi Iwamura 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).

  • Process for producing hydroxylapatites
    Patent number: 5073357
    Abstract: Provided is a process for producing hydroxylapatite suitable for chromatographic separation of biopolymers. The process comprises allowing hexagonal prismatic or acicular monetite to react with potassium hydroxide and/or lithium hydroxide under heating.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: December 17, 1991
    Assignee: Toagosei Chemical Industry, Co., Ltd.
    Inventors: Osamu Takagi, Kishiro Azuma, Tatsuichi Iwamura