Patents Assigned to Kotobuki Kinzoku Kogyo Co., Ltd.
  • Oil type release agent for die casting method for getting solvent mixing ratio, casting method, and spray unit
    Patent number: 8764897
    Abstract: An oil type release agent is provided, containing 70 to 98 parts by weight of solvents having dynamic viscosity of 2 to 10 mm2/s at 40° C. and a flash point in the range of 70 to 170° C., 1 to 10 parts by weight of high viscosity mineral oils and/or synthetic oils having dynamic viscosity of 100 mm2/s or higher at 40° C., 15 parts by weight or less of a silicone oil having dynamic viscosity of 150 mm2/s or higher at 40° C., and 1 to 5 parts by weight of additives having a lubricating function. The flash point of the agent is in the range of 70 to 170° C., and the dynamic viscosity of the agent is 2 to 30 mm2/s or higher at 40° C.
    Type: Grant
    Filed: February 12, 2012
    Date of Patent: July 1, 2014
    Assignees: Aoki Science Institute Co., Ltd., Ryobi Ltd., Kotobuki Kinzoku Kogyo Co., Ltd., Aisan Industry Co., Ltd.
    Inventors: Hisaharu Aoki, Koji Togawa, Hirobumi Ohira, Masanao Kobayashi, Hiroaki Komatsubara, Toshiaki Shimizu, Ryusuke Izawa, Masayuki Harada, Masayuki Kito, Keigo Yorioka, Akihiro Hayashi
  • Oil Type Release Agent for Die Casting Method for Getting Solvent Mixing Ratio, Casting Method, and Spray Unit
    Publication number: 20120208939
    Abstract: An oil type release agent is provided, containing 70 to 98 parts by weight of solvents having dynamic viscosity of 2 to 10 mm2/s at 40° C. and a flash point in the range of 70 to 170° C., 1 to 10 parts by weight of high viscosity mineral oils and/or synthetic oils having dynamic viscosity of 100 mm2/s or higher at 40° C., 15 parts by weight or less of a silicone oil having dynamic viscosity of 150 mm2/s or higher at 40° C., and 1 to 5 parts by weight of additives having a lubricating function. The flash point of the agent is in the range of 70 to 170° C., and the dynamic viscosity of the agent is 2 to 30 mm2/s or higher at 40° C.
    Type: Application
    Filed: February 12, 2012
    Publication date: August 16, 2012
    Applicants: AOKI SCIENCE INSTITUTE CO., LTD, AISAN INDUSTRY CO., LTD., KOTOBUKI KINZOKU KOGYO CO., LTD., RYOBI LTD.
    Inventors: Hisaharu Aoki, Koji Togawa, Hirobumi Ohira, Masanao Kobayashi, Hiroaki Komatsubara, Toshiaki Shimizu, Ryusuke Izawa, Masayuki Harada, Masayuki Kito, Keigo Yorioka, Akihiro Hayashi
  • Oil type release agent for die casting method for setting solvent mixing ratio, casting method, and spray unit
    Patent number: 8114209
    Abstract: The invention provides an oil type release agent die casting containing 70 to 98 parts by weight of a solvent having a specified flash point, 1 to 10 parts by weight of mineral oils and/or synthetic oils having a high viscosity, 15 parts by weight or less of a silicone oil, and 1 to 5 parts by weight of additives having a lubricating function, wherein the flash point of the agent is in the range of 70 to 170° C., and dynamic viscosity of the agent is 2 to 30 mm2/s or higher at 40° C., and a method for setting a mixing ratio of the solvent, a casting method, and a spraying unit for the case of using the release agent.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: February 14, 2012
    Assignees: Aoki Science Institute Co., Ltd., Ryobi Ltd., Kotobuki Kinzoku Kogyo Co., Ltd., Aisan Industry Co., Ltd.
    Inventors: Hisaharu Aoki, Koji Togawa, Hirobumi Ohira, Masanao Kobayashi, Yuichi Yamazaki, Hiroaki Komatsubara, Toshiaki Shimizu, Ryusuke Izawa, Hideki Furukawa, Masayuki Harada, Mitsuyoshi Yokoi, Masayuki Kito, Keigo Yorioka, Akihiro Hayashi