Patents by Inventor Kazutomi Ohnuma

Kazutomi Ohnuma 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).

  • Insecticidal tetrahydrofuran-compound
    Patent number: 5614527
    Abstract: A tetrahydrofuran-compound is disclosed herein which is represented by the formula (1) ##STR1## wherein each of X.sub.1 and X.sub.2 is a hydrogen atom or a methyl group, Y is a hydrogen atom or a carbonyl group substituted by a lower alkyl group (Y') having 1 to 4 carbon atoms, i.e., an acyl group (--COY'), andn is 2 or 3,and an insecticide containing the tetrahydrofuran-compound as an effective component.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: March 25, 1997
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Katsutoshi Kinoshita, Takeo Wakita, Kenji Kodaka, Hirozumi Matsuno, Kenichi Satoh, Shirou Shiraishi, Kazutomi Ohnuma, Eiichi Yamada, Naoko Yasui, Nobuyuki Kawahara, Koichi Ebihara, Michihiko Nakaya
  • Intermediate for furanyl insecticide
    Patent number: 5532365
    Abstract: The present invention relates to novel (tetrahydro-3-furanyl)methylamino derivatives of the following formula (1): ##STR1## wherein the variables are defined in the specification, which are useful as insecticides.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: July 2, 1996
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Kenji Kodaka, Katsutoshi Kinoshita, Takeo Wakita, Shirou Shiraishi, Kazutomi Ohnuma, Eiichi Yamada, Naoko Yasui, Michihiko Nakaya, Hirozumi Matsuno, Nobuyuki Kawahara, Koichi Ebihara
  • Parasiticide employing pyrethroid type compounds
    Patent number: 5506269
    Abstract: The present invention discloses a parasiticide comprising, as the active ingredient, at least one natural or synthetic pyrethroid type compound.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: April 9, 1996
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Kazutomi Ohnuma, Masahiko Nakamura, Takashi Fujita, Takatoshi Udagawa
  • Furanyl insecticide
    Patent number: 5434181
    Abstract: The present invention relates to novel (tetrahydro-3-furanyl)methylamino derivatives of the following formula (1): ##STR1## wherein the variables are defined in the specification, which are useful as insecticides.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: July 18, 1995
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Kenji Kodaka, Katsutoshi Kinoshita, Takeo Wakita, Shirou Shiraishi, Kazutomi Ohnuma, Eiichi Yamada, Naoko Yasui, Michihiko Nakaya, Hirozumi Matsuno, Nobuyuki Kawahara, Koichi Ebihara
  • N-vinylimidazolidine derivatives insecticides containing same as an effective ingredient
    Patent number: 5310920
    Abstract: The present invention relates to novel N-vinylimidazolidine derivatives of the following formula (1), a process for producing them, an insecticide containing the derivatives as an effective ingredient, and novelintermediates. The derivatives (1) are useful as agricultural chemicals (particularly, as insecticides) in the fields of agriculture, and the intermediates are useful in various industrial fields, especially as intermediates for agricultural chemicals. ##STR1## where R.sup.1, R.sup.2, Z are as defined in the specification.
    Type: Grant
    Filed: December 15, 1992
    Date of Patent: May 10, 1994
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Kenji Kodaka, Michihiko Nakaya, Katsutoshi Kinoshita, Koichi Ebihara, Hirozumi Matsuno, Shirou Shiraishi, Kazutomi Ohnuma, Ei-ich Yamada