Patents by Inventor Tetsuo Kanakubo

Tetsuo Kanakubo 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).

  • Assemblage of hydroxyl apatite particles and liquid chromatography column using the same
    Patent number: 5037543
    Abstract: An assemblage of hydroxyl apatite particles having small and uniform particle size. The median of the particle size is 1 to 10 .mu.m, and at least 90% of the particles in the assemblage have a particle size of not more than 25 .mu.m. The assemblage can be used to pack a liquid chromatography column.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: August 6, 1991
    Assignee: Toa Nenryo Kogyo K.K.
    Inventors: Tsugio Maejima, Kimio Tamai, Tetsuo Kanakubo, Masao Yoshizawa, Nobuaki Tagaya, Hideyuki Kuwahara, Takao Hashimoto, Noriko Komatsu, Keiko Fukamachi