Patents by Inventor Tatsushi Maeda

Tatsushi Maeda 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: 6440354
    Abstract: A thermoforming apparatus includes a female die and a movable plug for thermoforming a softened thermoplastic resin sheet. The female die includes a rim forming recess in the shape of a bowl-shaped recess, communicating with a bottom opening and forming a bottom wall of the bowl, an outer wall, a bottom wall and an inner wall of a rim of the bottom, and a bottom plate movable forward and backward relative to the rim forming recess. The softened thermoplastic resin sheet is thrust by the plug while the bottom plate is held at a first stop position. The thermoplastic resin sheet is brought into contact with an inner circumferential surface of the bowl-shaped recess and then the bottom plate is moved to a second stop position so that a rim is formed.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: August 27, 2002
    Assignee: Kabushiki Kaisha Asano Kenkyusho
    Inventors: Toshihiro Takai, Kenichi Mizoguchi, Akio Yoshikoshi, Takashi Kikkawa, Tatsushi Maeda
  • Patent number: 5733877
    Abstract: A pharmaceutical composition is disclosed comprising a fat emulsion containing microspheres and having its electric charge adjusted to a negative value and a biologically active substance selected from the group consisting of a basic peptide and a basic protein, which biologically active substance is adsorbed to the microspheres in the fat emulsion. An acidic phospholipid, a fatty acid, a bilic acid and a salt of such substances is preferred as an agent for adjusting the electric charge of the fat emulsion. Motilin derivatives, vasoactive intestinal polypeptide derivatives and calcitonin are preferred biologically active substances.
    Type: Grant
    Filed: July 18, 1995
    Date of Patent: March 31, 1998
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Makoto Sato, Toshiyuki Kouzaki, Yoko Ishihara, Shigeaki Yoshina, Masanao Nakoshi, Tatsushi Maeda