Patents by Inventor Noboru Tanoue

Noboru Tanoue 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 producing phenolic novolak
    Patent number: 7683155
    Abstract: A phenolic novolak having the contents of a monomeric phenol and a dimeric phenol and a degree of dispersion controlled can be obtained in high yield by a process for production of a phenolic novolak having a step of conducting a heterogeneous reaction of a phenol and an aldehyde in the presence of a phosphoric acid and an unreactive oxygen-containing organic solvent as a reaction cosolvent.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: March 23, 2010
    Assignee: Asahi Organic Chemicals Industry Col., Ltd.
    Inventors: Shigeki Inatomi, Noboru Tanoue, Motoji Yokoyama, Hirofumi Shinohara, Satoshi Takehara
  • Phenolic novolaks and process for production thereof
    Patent number: 7241833
    Abstract: A process for production of phenolic novolak which comprises the step of conducting heterogeneous reaction of a phenol with 0.40 to 0.93 mol of an aldehyde per mol of the phenol in the presence of at least 25 parts by mass of a phosphoric acid per 100 parts by mass of the phenol. This process can give in high yield phenolic novolak with the contents of monomeric and dimeric phenols and a degree of dispersion controlled.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: July 10, 2007
    Assignee: Asahi Organic Chemicals Industry Co.., LTP
    Inventors: Shigeki Inatomi, Noboru Tanoue
  • Process for producing phenolic novolak
    Publication number: 20060241276
    Abstract: A phenolic novolak having the contents of a monomeric phenol and a dimeric phenol and a degree of dispersion controlled can be obtained in high yield by a process for production of a phenolic novolak having a step of conducting a heterogeneous reaction of a phenol and an aldehyde in the presence of a phosphoric acid and an unreactive oxygen-containing organic solvent as a reaction cosolvent.
    Type: Application
    Filed: August 29, 2003
    Publication date: October 26, 2006
    Applicant: ASAHI ORGANIC CHEMICALS INDUSTRY CO., LTD.
    Inventors: Shigeki Inatomi, Noboru Tanoue, Motoji Yokoyama, Hirofumi Shinohara, Satoshi Takehara
  • Phenolic novolaks and process for production thereof
    Publication number: 20050075452
    Abstract: A process for production of phenolic novolak which comprises the step of conducting heterogeneous reaction of a phenol with 0.40 to 0.93 mol of an aldehyde per mol of the phenol in the presence of at least 25 parts by mass of a phosphoric acid per 100 parts by mass of the phenol. This process can give in high yield phenolic novolak with the contents of monomeric and dimeric phenols and a degree of dispersion controlled.
    Type: Application
    Filed: November 15, 2002
    Publication date: April 7, 2005
    Inventors: Shigeki Inatomi, Noboru Tanoue