Patents by Inventor Atsumi Kukidome

Atsumi Kukidome 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).

  • Process for the production of bisphenol A
    Patent number: 6512148
    Abstract: A process for the production of bisphenol A, including providing a melt of a crystalline adduct of bisphenol A and phenol, contacting the melt with a cation donating solid to neutralize the strong acid therewith, and then heating the melt to vaporize and remove phenol from the melt.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: January 28, 2003
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Susumu Yamamoto, Atsumi Kukidome, Makoto Nomura, Keiji Maehara, Kenji Nagahama