Patents by Inventor Ayako Saneyoshi

Ayako Saneyoshi 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).

  • Lubricant for refrigerating machine employing ammonia refrigerant
    Patent number: 6875730
    Abstract: A lubricant for a refrigerator using ammonia as the refrigerant, which contains an additive selected from antioxidant, anti-wear additive and metal deactivator, and the polyether compound represented by the following general formula (1) or (2): X{—O—(AO)n—H}p??(1) X{—O—(AO1)a—(AO2)b—H}p??(2)
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: April 5, 2005
    Assignees: Asahi Denka Kogyo K.K., Japan Energy Corporation
    Inventors: Takashi Kaimai, Hitoshi Takahashi, Goro Yamamoto, Kimiyoshi Namiwa, Ayako Saneyoshi
  • Lubricant for refrigerating machine employing ammonia refrigerant
    Publication number: 20030027729
    Abstract: To provide a lubricant which is excellent in the compatibility with ammonia and also has excellent practical performance such as good stability and lubricity.
    Type: Application
    Filed: July 9, 2002
    Publication date: February 6, 2003
    Inventors: Takashi Kaimai, Hitoshi Takahashi, Goro Yamamoto, Kimiyoshi Namiwa, Ayako Saneyoshi