Patents by Inventor Yoshinori Kitagawa

Yoshinori Kitagawa 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).

  • Patent number: 6875783
    Abstract: Novel isothiazolecarboxamides of the formula in which R is as defined in the description, a plurality of processes for preparing the novel compounds and their us for protecting plants against attack by undesirable microorganisms and animal pests.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: April 5, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lutz Assmann, Dietmar Kuhnt, Hans-Ludwig Elbe, Christoph Erdelen, Stefan Dutzmann, Gerd Hänssler, Klaus Stenzel, Astrid Mauler-Machnik, Yoshinori Kitagawa, Haruko Sawada, Haruhiko Sakuma
  • Publication number: 20040157863
    Abstract: Novel triazolopyrimidines of the formula 1
    Type: Application
    Filed: April 7, 2004
    Publication date: August 12, 2004
    Inventors: Olaf Gebauer, Jorg Nico Greul, Ulrich Heinemann, Hans-Ludwig Elbe, Bernd-Wieland Kruger, Ralf Dunkel, Arnd Voerste, Ronald Ebbert, Ulrike Wachendorff-Neumann, Karl-Heinz Kuck, Yoshinori Kitagawa
  • Publication number: 20040142943
    Abstract: Novel triazolopyrimidines of the formula 1
    Type: Application
    Filed: March 24, 2004
    Publication date: July 22, 2004
    Inventors: Olaf Gebauer, Jorg Nico Greul, Ulrich Heinemann, Hans-Ludwig Elbe, Bernd-Wieland Kruger, Fritz Maurer, Ralf Dunkel, Arnd Voerste, Ronald Ebbert, Ulrike Wachendorff-Neumann, Yoshinori Kitagawa, Astrid Mauler-Machnik, Karl-Heinz Kuck
  • Publication number: 20040097522
    Abstract: Novel triazolopyrimidines of the formula 1
    Type: Application
    Filed: November 17, 2003
    Publication date: May 20, 2004
    Inventors: Olaf Gebauer, Hans-Ludwig Elbe, Marielouise Schneider, Albrecht Marhold, Ulrike Wachendorff-Neumann, Astrid Mauler-Machnik, Karl-Heinz Kuck, Arnd Voerste, Yoshinori Kitagawa, Ulrich Heinemann, Petra Hilgers, Axel Pleschke
  • Publication number: 20040063729
    Abstract: The invention relates to novel triazolopyrimidines of the formula 1
    Type: Application
    Filed: October 9, 2003
    Publication date: April 1, 2004
    Inventors: Yoshinori Kitagawa, Haruko Sawada, Yutaka Kuchii
  • Patent number: 6706748
    Abstract: The present invention relates to novel isothiazole derivatives of the formula wherein A represents a group selected from in which R1, R2, R3, R4, and R5 have the meanings given in the specification, to processes for the preparation of the novel compounds, and to their use as microbicides.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: March 16, 2004
    Assignee: Nihon Bayer Agrochem, K.K.
    Inventors: Yoshinori Kitagawa, Koichi Ishikawa, Haruko Sawada, Yasuo Araki, Takuma Shigyo, Lutz Assmann
  • Publication number: 20040044054
    Abstract: Novel isothiazolecarboxamides of the formula 1
    Type: Application
    Filed: August 29, 2003
    Publication date: March 4, 2004
    Inventors: Lutz Assmann, Dietmar Kuhnt, Hans-Ludwig Elbe, Christoph Erdelen, Stefan Dutzmann, Gerd Hanssler, Klaus Stenzel, Astrid Mauler-Machnik, Yoshinori Kitagawa, Haruko Sawada, Haruhiko Sakuma
  • Publication number: 20030220197
    Abstract: Novel isothiazole derivatives of the formula (I) wherein A represents a group selected from (1), (2) and (3) in which R1, R2, R3, R4 and R5 have the meanings given in the specification processes for the preparation of the novel compounds and their use as microbicides.
    Type: Application
    Filed: October 9, 2002
    Publication date: November 27, 2003
    Inventors: Yoshinori Kitagawa, Koichi Ishikawa, Haruko Sawada, Yasuo Araki, Takuma Shigyo, Lutz Assmann
  • Patent number: 6642181
    Abstract: Novel isothiazolecarboxamides of the formula in which R is as defined in the description, a plurality of processes for preparing the novel compounds and their use for protecting plants against attack by undesirable microorganisms and animal pests.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: November 4, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lutz Assmann, Dietmar Kuhnt, Hans-Ludwig Elbe, Christoph Erdelen, Stefan Dutzmann, Gerd Hänssler, Klaus Stenzel, Astrid Mauler-Machnik, Yoshinori Kitagawa, Haruko Sawada, Haruhiko Sakuma
  • Publication number: 20030176477
    Abstract: Novel isothiazolecarboxylic acid derivatives of the formula (I), in which A, Q, Z and k have the meanings mentioned in the specification, processes for the preparation of the new compounds and their use as microbicides.
    Type: Application
    Filed: July 25, 2002
    Publication date: September 18, 2003
    Inventors: Yoshinori Kitagawa, Koichi Ishikawa, Haruko Sawada, Yasuo Araki, Lutz Assmann
  • Patent number: 6552056
    Abstract: Isothiazolecarboxamides of the formula: wherein X, Y, R1, R2, R3 and R4 have the meanings given in the specification, may be used as microbicides.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: April 22, 2003
    Assignee: Nihon Bayer Agrochem K.K.
    Inventors: Lutz Assmann, Yoshinori Kitagawa, Koichi Ishikawa, Daiei Yamazaki, Haruko Sawada, Yasuo Araki, Haruhiko Sakuma, Taro Kinbara, Kinya Imanishi
  • Publication number: 20030013750
    Abstract: Isothiazolecarboxamides of the formula: 1
    Type: Application
    Filed: November 26, 2001
    Publication date: January 16, 2003
    Inventors: Lutz Assmann, Yoshinori Kitagawa, Koichi Ishikawa, Daiei Yamazaki, Haruko Sawada, Yasuo Araki, Haruhiko Sakuma, Taro Kinbara, Kinya Imanishi
  • Publication number: 20020091067
    Abstract: Novel isothiazolecarboxamides of the formula 1
    Type: Application
    Filed: December 6, 2001
    Publication date: July 11, 2002
    Inventors: Lutz Assmann, Dietmar Kuhnt, Hans-Ludwig Elbe, Christoph Erdelen, Stefan Dutzmann, Gerd Hanssler, Klaus Stenzel, Astrid Mauler-Machnik, Yoshinori Kitagawa, Haruko Sawada, Haruhiko Sakuma
  • Patent number: 6372692
    Abstract: Novel isothiazolecarboxamides of the formula in which R is as defined in the description, a plurality of processes for preparing the novel compounds and their use for protecting plants against attack by undesirable microorganisms and animal pests.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: April 16, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lutz Assmann, Dietmar Kuhnt, Hans-Lud{acute over (w)}ig Elbe, Christoph Erdelen, Stefan Dutzmann, Gerd Hänssler, Klaus Stenzel, Astrid Mauler-Machnik, Yoshinori Kitagawa, Haruko Sawada, Haruhiko Sakuma
  • Patent number: 6310005
    Abstract: Novel isothiazolecarboxamides of the formula in which R is as defined in the description, a plurality of processes for preparing the novel compounds and their use for protecting plants against attack by undesirable microorganisms.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: October 30, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lutz Assmann, Hans-Ludwig Elbe, Dietmar Kuhnt, Gerd Hänssler, Karl-Heinz Kuck, Yoshinori Kitagawa, Haruko Sawada, Haruhiko Sakuma
  • Patent number: 6277791
    Abstract: Novel isothiazolecarboxamides of the formula in which R is as defined in the description, a plurality of processes for preparing the novel compounds and their use for protecting plants against attack by undesirable microorganisms and animal pests.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: August 21, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lutz Assmann, Dietmar Kuhnt, Hans-Ludwig Elbe, Christoph Erdelen, Stefan Dutzmann, Gerd Hänssler, Klaus Stenzel, Astrid Mauler-Machnik, Yoshinori Kitagawa, Haruko Sawada, Haruhiko Sakuma
  • Patent number: 6262275
    Abstract: Novel 1-substituted methyltetrazolinones of the formula (I) wherein R1 represents a 5-membered heterocyclic radical which has 1 to 3 heteroatoms selected arbitrarily from the group consisting of N, O and S and which is optionally substituted by halogen and/or C1-4 alkyl, or represents oxiran-2-yl, optionally chloro-substituted pyridyl or C1-4 alkyl-S(O)m— wherein m represents 0, 1 or 2, or represents a C3-6 alicyclic hydrocarbon radical; R2 and R3 represent, independently of one another, C1-6 alkyl, C3-7 cycloalkyl or optionally substituted phenyl, or R2 and R3 may form, together with the N-atom to which they are bonded, an optionally substituted ring; R4 represents a hydrogen atom or methyl; and n represents 0 or 1; as well as for their preparation processes and novel intermediates in their production. The inventive compounds of formula (I) are used as herbicides.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: July 17, 2001
    Assignee: Nihon Bayer Agrochem K.K.
    Inventors: Toshio Goto, Yoshinori Kitagawa, Seishi Ito, Katsuhiko Shibuya, Chieko Ueno, Yoshiko Kyo
  • Patent number: 6077866
    Abstract: Novel benzophenonehydrazone derivatives represented by the formula (I): ##STR1## wherein, R.sup.1 is halogen; R.sup.2 is hydrogen or C.sub.1-4 alkyl; R.sup.3 is cyano, optically substituted C.sub.1-4 alkyl, C.sub.2-4 alkenyl, C.sub.3-4 alkynyl, C.sub.1-4 alkyl-carbonyl or C.sub.1-4 alkoxy-thiocarbonyl; R.sup.4 is hydrogen, phenyl, optionally substituted C.sub.1-6 alkyl, optionally substituted C.sub.2-8 alkenyl, --CO--R.sup.8, --CO--O--R.sup.9 or ##STR2## R.sup.5 is hydrogen, formyl, phenyl, optionally substituted C.sub.1-8 alkyl, optionally substituted C.sub.2-8 alkenyl, optionally substituted C.sub.3-8 alkynyl, optionally substituted C.sub.1-8 alkyl-arbonyl, optionally substituted C.sub.1-6 alkyl-oxalyl, optionally substituted C.sub.1-8 alkoxy-carbonyl, optionally substituted C.sub.1-8 alkoxy-oxalyl, optionally substituted C.sub.3-8 cycloalkyl-carbonyl, optionally substituted C.sub.2-8 alkenyl-carbonyl or optionally substituted benzoyl; R.sup.6 is hydrogen or halogen; R.sup.7 is hydrogen, halogen or C.sub.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: June 20, 2000
    Assignee: Nihon Bayer Agrochem K.K.
    Inventors: Yoshinori Kitagawa, Katsuaki Wada, Yoshiko Kyo, Yuichi Otsu, Yumi Hattori, Toru Obinata, Takahisa Abe, Katsuhiko Shibuya, Wolfram Andersch
  • Patent number: 6017853
    Abstract: Novel 1-substituted methyltetrazolinones of the formula (I) ##STR1## wherein R.sup.1 represents a 5-membered heterocyclic radical which has 1 to 3 heteroatoms selected arbitrarily from the group consisting of N, O and S and which is optionally substituted by halogen and/or C.sub.1-4 alkyl, or represents oxiran-2-yl, optionally chloro-substituted pyridyl or C.sub.1-4 alkyl-S(O).sub.m --wherein m represents 0, 1 or 2, or represents a C.sub.3-6 alicyclic hydrocarbon radical; R.sup.2 and R.sup.3 represent, independently of one another, C.sub.1-4 alkyl, C.sub.3-7 cycloalkyl or optionally substituted phenyl, or R.sup.2 and R.sup.3 may form, together with the N-atom to which they are bonded, an optionally substituted ring; R.sup.4 represents a hydrogen atom or methyl; and n represents 0 or 1; as well as for their preparation processes and novel intermediates in their production. The inventive compounds of formula (I) are used as herbicides.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: January 25, 2000
    Assignee: Nihon Bayer Agrochem K.K.
    Inventors: Toshio Goto, Yoshinori Kitagawa, Seishi Ito, Katsuhiko Shibuya, Chieko Ueno, Yoshiko Kyo
  • Patent number: 5668087
    Abstract: Herbicidal 1-alkenyltetrazolinones of the formula: ##STR1## wherein R.sup.1 represents the group: ##STR2## or the group: ##STR3## R.sup.2 and R.sup.3, independently of one another, represent C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl which may optionally be substited by methyl, C.sub.2-4 alkenyl, C.sub.2-5 alkynyl, phenyl which may optionally be substituted or aralkyl which may optionally be substituted, orR.sup.2 and R.sup.3 may optionally form, together with the N-atom to which they are bonded, a heterocyclic ring which may optionally be substituted, and novel intermediates therefor.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: September 16, 1997
    Assignee: Nihon Bayer Agrochem K.K.
    Inventors: Toshio Goto, Yoshinori Kitagawa, Seishi Ito, Katsuhiko Shibuya, Kazuhiro Ukawa, Yoshiko Kyo, Natsuko Minegishi