Patents Assigned to APT Co., Ltd.
  • Singlet oxygen quencher and composition using the same
    Patent number: 7588747
    Abstract: A novel singlet oxygen quencher is disclosed. The quencher consists of a colloidal liquid of a platinum metal group. A composition comprising, as an active ingredient, the singlet oxygen quencher is also disclosed.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: September 15, 2009
    Assignees: KOSE Corporation, APT Co., Ltd.
    Inventors: Noboru Naito, Kumi Kameyama, Akemi Takayama, Misako Kobayashi, Yusei Miyamoto, Masashi Kajita
  • Oral Wash
    Publication number: 20090155316
    Abstract: An oral wash comprising an aqueous dispersion of transition metal fineparticles such as platinum colloid. The wash is capable of conveniently and quickly eliminating active oxygen species which causes damages of mucosa in the oral cavity, periodontium, and the like.
    Type: Application
    Filed: December 13, 2005
    Publication date: June 18, 2009
    Applicants: APT CO., LTD., DENTALARROW CO., LTD.
    Inventors: Minenobu Okayama, Kenichi Koshiro
  • Display device by columnar light
    Patent number: 6739741
    Abstract: A display system comprising a high-intensity discharge lamp system equipped with a stabilizer, a reflector mirror coated with a heat-absorption film, a shutter, and a light-gathering lens; and a pole holding the high-intensity discharge lamp system at a desired height above the road or its vicinity. The display system of the invention enables drivers to easily see and locate the centerline, road shoulder, crosswalk, and traffic signs, even in the midst of rainstorm, dense fog, or blizzard.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: May 25, 2004
    Assignee: APT Co., Ltd.
    Inventor: Yoshihiko Awa