Patents by Inventor Norihiko Yoneda

Norihiko Yoneda 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 fluorinated organic compounds and fluorinating agents
    Patent number: 7311890
    Abstract: A process for the production of a fluorinated organic compound, characterized by fluorinating an organic compound having a hydrogen atoms using IF5; and a novel fluorination process for fluorinating an organic compound having a hydrogen atoms by using a fluorinating agent containing IF5 and at least one member selected from the group consisting of acids, bases, salts and additives.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: December 25, 2007
    Assignee: Daikin Industries, Ltd.
    Inventors: Norihiko Yoneda, Tsuyoshi Fukuhara, Kazuhiro Shimokawa, Kenji Adachi, Satoshi Oishi
  • Process for the production of fluorinated organic compounds and fluorinating agents
    Publication number: 20040245505
    Abstract: A process for the production of a fluorinated organic compound, characterized by fluorinating an organic compound having a hydrogen atoms using IF5; and a novel fluorination process for fluorinating an organic compound having a hydrogen atoms by using a fluorinating agent containing IF5 and at least one member selected from the group consisting of acids, bases, salts and additives.
    Type: Application
    Filed: July 7, 2004
    Publication date: December 9, 2004
    Applicant: Daikin Industries, Ltd.
    Inventors: Norihiko Yoneda, Tsuyoshi Fukuhara, Kazuhiro Shimokawa, Kenji Adachi, Satoshi Oishi
  • Process for the production of fluorinated organic compounds and fluorinating agents
    Patent number: 6784327
    Abstract: A process for the production of a fluorinated organic compound, characterized by fluorinating an organic compound having a hydrogen atoms using IF5; and a novel fluorination process for fluorinating an organic compound having a hydrogen atoms by using a fluorinating agent containing IF5 and at least one member selected from the group consisting of acids, bases, salts and additives.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: August 31, 2004
    Assignee: Daikin Industries, Ltd.
    Inventors: Norihiko Yoneda, Tsuyoshi Fukuhara, Kazuhiro Shimokawa, Kenji Adachi, Satoshi Oishi
  • Process for the production of fluorinated organic compounds and fluorinating agents
    Publication number: 20030176747
    Abstract: A process for the production of a fluorinated organic compound, characterized by fluorinating an organic compound having a hydrogen atoms using IF5; and a novel fluorination process for fluorinating an organic compound having a hydrogen atoms by using a fluorinating agent containing IF5 and at least one member selected from the group consisting of acids, bases, salts and additives.
    Type: Application
    Filed: December 10, 2002
    Publication date: September 18, 2003
    Inventors: Norihiko Yoneda, Tsuyoshi Fukuhara, Kazuhiro Shimokawa, Kenji Adachi, Satoshi Oishi
  • Method for producing an aromatic poly (thio) ether ketone
    Patent number: 5326849
    Abstract: A method for producing an aromatic poly(thio)ether ketone having repeating units of the following formula (II): ##STR1## wherein each of R.sup.1 to R.sup.12 is a hydrogen atom, a halogen atom, a hydrocarbon group or an alkoxy group, X is an oxygen atom or a sulfur atom, provided that part of X may be a direct bond, and n is an integer of from 0 to 2, which comprises reacting an aromatic (thio)ether carboxylic acid fluoride of the following formula (I): ##STR2## wherein R.sup.1 to R.sup.12, X and n are as defined above, under pressure in an aprotic organic solvent in the presence of boron trifluoride.
    Type: Grant
    Filed: October 14, 1993
    Date of Patent: July 5, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Yukio Takahashi, Norihiko Yoneda, Seiichi Nozawa
  • Catalytic preparation of aromatic polyketone from phosgene and aromatic ether or sulfide
    Patent number: 4707536
    Abstract: Disclosed herein is a process for producing aromatic polyketone, comprising reacting a compound represented by the formula (I): ##STR1## wherein each of R.sup.1 to R.sup.12 represents a hydrogen atom, a halogen atom, a hydrocarbon group or an alkoxy group; X.sup.1 and X.sup.2 respectively represent an oxygen atom or a sulfur atom and n is an integer of from 0 to 5,with phosgene (i) in the presence of a fluoroalkanesulfonic acid or (ii) in hydrogen fluoride in the presence of boron trifluoride at a temperature of from 65.degree. to 90.degree. C.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: November 17, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Norihiko Yoneda, Tsuyoshi Fukuhara, Seiichi Nozawa