Patents by Inventor Akiko Kakimizu

Akiko Kakimizu 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 preparing dithiocarbonimide derivatives
    Patent number: 6121476
    Abstract: The purpose of the invention is to provide a process for advantageous production of dithiocarbonimide derivatives of the formula I: ##STR1##
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: September 19, 2000
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tomoyuki Kusaba, Akiko Kakimizu, Kazuya Ujihara
  • Anti-fouling compositions and fouling control of harmful aquatic organisms
    Patent number: 6010693
    Abstract: There are disclosed a controlling agent and an antifouling composition against harmful aquatic organisms, which include a particular N-phenylisothiazolone derivative of the formula: ##STR1## wherein X.sup.1 and X.sup.2 are the same or different and are independently hydrogen, chlorine or bromine; and R is haloalkoxy. Also disclosed is a method for preventing or inhibiting the adhesion of harmful aquatic organisms to water-exposed articles, which includes applying the antifouling composition to the water-exposed articles.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: January 4, 2000
    Assignees: Chugoku Marine Paints, Ltd., Sumitomo Chemical Company, Limited
    Inventors: Makoto Tsuboi, Shuhei Yuki, Akiko Kakimizu, Kenji Arai, Masato Mizutani
  • Method for producing benzyl bromide derivatives
    Patent number: 5962723
    Abstract: The method for producing the benzyl bromide derivatives of the formula: ##STR1## wherein R.sub.1 represents a C.sub.1 to C.sub.5 alkyl group, which comprises reacting a 2-methylphenylacetic acid derivative of the formula: ##STR2## wherein R.sub.1 represents the same meaning above, with bromine in the presence of an alkali metal salt. In case that R.sup.1 is an ethyl or isopropyl group, the recrystallization of the above reaction product from aliphatic hydrocarbon solution gives the benzyl bromide derivatives efficiently and in high purity.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: October 5, 1999
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kenzi Takuma, Akiko Kakimizu, Tomoyuki Kusaba
  • Anti-fouling compositions comprising N-phenylisothiazalone derivatives and fouling control of harmful aquatic organisms using same
    Patent number: 5683686
    Abstract: There are disclosed a controlling agent and an antifouling composition against harmful aquatic organisms, which include a particular N-phenylisothiazolone derivative of the formula: ##STR1## wherein X.sup.1 and X.sup.2 are the same or different and are independently hydrogen, chlorine or bromine; and R is haloalkoxy. Also disclosed is a method for preventing or inhibiting the adhesion of harmful aquatic organisms to water-exposed articles, which includes applying the antifouling composition to the water-exposed articles.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: November 4, 1997
    Assignees: Chugoku Marine Paints, Ltd., Sumitomo Chemical Company, Limited
    Inventors: Makoto Tsuboi, Shuhei Yuki, Akiko Kakimizu, Kenji Arai, Masato Mizutani
  • Isothiazolone derivative and microbicidal composition comprising the same as active ingredient
    Patent number: 5663436
    Abstract: There is disclosed a novel isothiazolone derivative of the formula: ##STR1## wherein X.sup.1 and X.sup.2 are the same or different and are independently hydrogen, chlorine or bromine; and R is haloalkoxy. The isothiazolone derivative is effective as a microbicide. Also disclosed are a microbicidal composition containing the isothiazolone derivative as an active ingredient, and an intermediate compound for use in the production of the isothiazolone derivative.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: September 2, 1997
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Akiko Kakimizu, Kenji Arai, Norio Kimura, Tomohiro Teramae
  • Isothiazolone derivative and microbicidal composition comprising the same as active ingredient
    Patent number: 5552423
    Abstract: There is disclosed a novel isothiazolone derivative of the formula: ##STR1## wherein X.sup.1 and X.sup.2 are the same or different and are independently hydrogen, chlorine or bromine; and R is haloalkoxy. The isothiazolone derivative is effective as a microbicide. Also disclosed are a microbicidal composition containing the isothiazolone derivative as an active ingredient, and an intermediate compound for use in the production of the isothiazolone derivative.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: September 3, 1996
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Akiko Kakimizu, Kenji Arai, Norio Kimura, Tomohiro Teramae
  • Monoterpenediol insect repellents
    Patent number: 5130136
    Abstract: An insect repellent comprising as an active ingredient a monoterpenediol compound having the formula, ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 have either one of the following definitions:(i) all of R.sub.1, R.sub.2 and R.sub.3 are hydrogen,(ii) R.sub.1 is hydrogen and R.sub.2 and R.sub.3, taken together, form a carbon-carbon single bond, or(iii) R.sub.2 is hydrogen, R.sub.1 and R.sub.3, taken together, form a carbon-carbon single bond, and the hydroxyl bonded to the carbon atom marked with an asterisk takes an .alpha.-configuration.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: July 14, 1992
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshinori Shono, Keisuke Watanabe, Hiroko Sekihachi, Akiko Kakimizu, Masaya Suzuki, Noritada Matsuo
  • Carboxylic acid esters, methods for producing them and insecticides and/or acaricides containing them as an active ingredient
    Patent number: 5055491
    Abstract: This invention relates to novel carboxylic acid esters represented by the formula (I) below, methods for their production and insecticides and/or acaricides containing them as an active ingredient, ##STR1## wherein R.sup.1 represents a hydrogen atom, a fluorine atom or a methyl group; and R.sup.2 represents a C.sub.1-5 alkyl group, a C.sub.3-6 cycloalkyl group, a C.sub.3-6 alkenyl group, a C.sub.3-6 alkynyl group or a C.sub.1-5 haloalkyl group.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: October 8, 1991
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Toshihiko Yano, Takao Ishiwatari, Hiroko Sekihachi, Noritada Matsuo, Tohei Takagaki, Akiko Kakimizu