Patents by Inventor Gaku Ehara

Gaku Ehara 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).

  • Epoxy resin, epoxy resin composition containing same, and cured product using said epoxy resin composition
    Patent number: 11198755
    Abstract: The present invention provides an epoxy resin including a reaction product of 1,2,4-trihydroxybenzene and an epihalohydrin, the epoxy resin containing a cyclic compound that has a cyclic structure containing, as constitutional atoms, oxygen atoms at 1-position and 2-position derived from 1,2,4-trihydroxybenzene, the cyclic compound being contained in an amount of 0.003 to 0.070 mol based on 100 g of the epoxy resin. The epoxy resin is liquid and is excellent in pyrolysis resistance.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: December 14, 2021
    Assignee: DIC Corporation
    Inventors: Nana Sugimoto, Koji Hayashi, Gaku Ehara
  • EPOXY RESIN, EPOXY RESIN COMPOSITION CONTAINING SAME, AND CURED PRODUCT USING SAID EPOXY RESIN COMPOSITION
    Publication number: 20210095068
    Abstract: The present invention provides an epoxy resin including a reaction product of 1,2,4-trihydroxybenzene and an epihalohydrin, the epoxy resin containing a cyclic compound that has a cyclic structure containing, as constitutional atoms, oxygen atoms at 1-position and 2-position derived from 1,2,4-trihydroxybenzene, the cyclic compound being contained in an amount of 0.003 to 0.070 mol based on 100 g of the epoxy resin. The epoxy resin is liquid and is excellent in pyrolysis resistance.
    Type: Application
    Filed: July 5, 2018
    Publication date: April 1, 2021
    Inventors: Nana Sugimoto, Koji Hayashi, Gaku Ehara
  • POLYPEPTIDE HAVING LARVAE GROWTH INHIBITING OR INSECTICIDAL EFFECT ON SCARABAEIDAE INSECTS AND POLYNUCLEOTIDE ENCODING THE SAME
    Publication number: 20100009897
    Abstract: Through screening using an antibody to a polypeptide that constitutes a parasporal body in sporangia of Bacillus popilliae and has a larvae growth inhibiting or insecticidal effect on a Scarabaeidae insect and through polymerase chain reaction, polynucleotides encoding the polypeptide and polypeptides similar thereto are isolated.
    Type: Application
    Filed: June 24, 2009
    Publication date: January 14, 2010
    Applicant: DAINIPPON INK & CHEMICALS, INC.
    Inventors: Masao Tanaka, Tomoko Yokoyama, Moriichi Aoyagi, Makoto Hasegawa, Gaku Ehara, Masaharu Kimura, Hideji Nishihashi
  • Polynucleotide encoding a polypeptide having a larvae growth inhibiting or insecticidal effect on Scarabaeidae insects
    Patent number: 7556959
    Abstract: Through screening using an antibody to a polypeptide that constitutes a parasporal body in sporangia of Bacillus popilliae and has a larvae growth inhibiting or insecticidal effect on a Scarabaeidae insect and through polymerase chain reaction, polynucleotides encoding the polypeptide and polypeptides similar thereto are isolated.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: July 7, 2009
    Assignee: DIC Corporation
    Inventors: Masao Tanaka, Tomoko Yokoyama, Moriichi Aoyagi, Makoto Hasegawa, Gaku Ehara, Masaharu Kimura, Hideji Nishihashi
  • Polynucleotide encoding polypeptide having larvae growth inhibiting or insecticidal effect on scarabaeidae insects
    Patent number: 7544502
    Abstract: Through screening using an antibody to a polypeptide that constitutes a parasporal body in sporangia of Bacillus popilliae and has a larvae growth inhibiting or insecticidal effect on a Scarabaeidae insect and through polymerase chain reaction, polynucleotides encoding the polypeptide and polypeptides similar thereto are isolated.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: June 9, 2009
    Assignee: DIC Corporation
    Inventors: Masao Tanaka, Tomoko Yokoyama, Moriichi Aoyagi, Makoto Hasegawa, Gaku Ehara, Masaharu Kimura, Hideji Nishihashi
  • Process for producing sporangia of , control agent, and controlling method
    Patent number: 7319028
    Abstract: The present invention provides a process for efficiently producing sporangia of Bacillus popilliae containing spores and parasporal bodies having controlling effects on Scarabaeidae insects, and a control agent and controlling method for Scarabaeidae insects obtained by said production process. In a process for producing sporangia of Bacillus popilliae containing spores and parasporal bodies by culturing Bacillus popilliae in a medium containing an adsorbent, the medium contains 0.2-4.0% by weight of glutamic acid.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: January 15, 2008
    Assignees: Dainippon Ink and Chemicals, Inc., Chiba Prefectural Government
    Inventors: Gaku Ehara, Masaharu Kimura, Hideji Nishihashi, Tomoko Yokoyama, Makoto Hasegawa, Masao Tanaka, Azusa Fujiie, Shinichi Aoyagi
  • Process for producing sporangia of
    Patent number: 7087423
    Abstract: The present invention provides a process for producing sporangia of Bacillus popilliae containing spores and parasporal bodies in large numbers per unit volume of medium. In a process for producing sporangia of Bacillus popilliae containing spores and parasporal bodies by culturing Bacillus popilliae in a liquid medium containing an adsorbent, the liquid medium contains 0.1–0.7% by weight of proline.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: August 8, 2006
    Assignees: Dainippon Ink and Chemicals, Inc., Chiba Prefectural Government
    Inventors: Gaku Ehara, Masaharu Kimura, Hideji Nishihashi, Tomoko Yokoyama, Sachiko Yoshii, Hitoshi Nagasaki, Masao Tanaka, Yasuharu Tomioka
  • Polypeptide having larvae growth inhibiting or insecticidal effect on scarabaeidae insects and polynucleotide encoding the same
    Publication number: 20060090220
    Abstract: Through screening using an antibody to a polypeptide that constitutes a parasporal body in sporangia of Bacillus popilliae and has a larvae growth inhibiting or insecticidal effect on a Scarabaeidae insect and through polymerase chain reaction, polynucleotides encoding the polypeptide and polypeptides similar thereto are isolated.
    Type: Application
    Filed: December 22, 2005
    Publication date: April 27, 2006
    Applicant: DAINIPPON INK AND CHEMICALS, INC.
    Inventors: Masao Tanaka, Tomoko Yokoyama, Moriichi Aoyagi, Makoto Hasegawa, Gaku Ehara, Masaharu Kimura, Hideji Nishihashi
  • Polypeptide having larvae growth inhibiting or insecticidal effect on scarabaeidae insects
    Patent number: 7033993
    Abstract: Through screening using an antibody to a polypeptide that constitutes a parasporal body in sporangia of Bacillus popilliae and has a larvae growth inhibiting or insecticidal effect on a Scarabaeidae insect and through polymerase chain reaction, polynucleotides encoding the polypeptide and polypeptides similar thereto are isolated.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: April 25, 2006
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Masao Tanaka, Tomoko Yokoyama, Moriichi Aoyagi, Makoto Hasegawa, Gaku Ehara, Masaharu Kimura, Hideji Nishihashi
  • Polypeptide having larvae growth inhibiting or insecticidal effect on scarabaeidae insects
    Publication number: 20050246789
    Abstract: Through screening using an antibody to a polypeptide that constitutes a parasporal body in sporangia of Bacillus popilliae and has a larvae growth inhibiting or insecticidal effect on a Scarabaeidae insect and through polymerase chain reaction, polynucleotides encoding the polypeptide and polypeptides similar thereto are isolated.
    Type: Application
    Filed: March 29, 2005
    Publication date: November 3, 2005
    Applicant: DAINIPPON INK AND CHEMICALS, INC.
    Inventors: Masao Tanaka, Tomoko Yokoyama, Moriichi Aoyagi, Makoto Hasegawa, Gaku Ehara, Masaharu Kimura, Hideji Nishihashi
  • Polynucleotide encoding polypeptide having larvae growth inhibiting or insecticidal effect on scarabaeidae insects
    Publication number: 20050172355
    Abstract: Through screening using an antibody to a polypeptide that constitutes a parasporal body in sporangia of Bacillus popilliae and has a larvae growth inhibiting or insecticidal effect on a Scarabaeidae insect and through polymerase chain reaction, polynucleotides encoding the polypeptide and polypeptides similar thereto are isolated.
    Type: Application
    Filed: March 29, 2005
    Publication date: August 4, 2005
    Applicant: DAINIPPON INK AND CHEMICALS, INC.
    Inventors: Masao Tanaka, Tomoko Yokoyama, Moriichi Aoyagi, Makoto Hasegawa, Gaku Ehara, Masaharu Kimura, Hideji Nishihashi
  • Process for producing sporangia of bacillus popilliae
    Publication number: 20050136526
    Abstract: The present invention provides a process for producing sporangia of Bacillus popilliae containing spores and parasporal bodies in large numbers per unit volume of medium. In a process for producing sporangia of Bacillus popilliae containing spores and parasporal bodies by culturing Bacillus popilliae in a liquid medium containing an adsorbent, the liquid medium contains 0.1-0.7% by weight of proline.
    Type: Application
    Filed: December 23, 2003
    Publication date: June 23, 2005
    Inventors: Gaku Ehara, Masaharu Kimura, Hideji Nishihashi, Tomoko Yokoyama, Sachiko Yoshii, Hitoshi Nagasaki, Masao Tanaka, Yasuharu Tomioka
  • Process for producing sporangia of Bacillus popilliae, control agent, and controlling method
    Publication number: 20050123518
    Abstract: The present invention provides a process for efficiently producing sporangia of Bacillus popilliae containing spores and parasporal bodies having controlling effects on Scarabaeidae insects, and a control agent and controlling method for Scarabaeidae insects obtained by said production process. In a process for producing sporangia of Bacillus popilliae containing spores and parasporal bodies by culturing Bacillus popilliae in a medium containing an adsorbent, the medium contains 0.2-4.0% by weight of glutamic acid.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 9, 2005
    Inventors: Gaku Ehara, Masaharu Kimura, Hideji Nishihashi, Tomoko Yokoyama, Makoto Hasegawa, Masao Tanaka, Azusa Fujiie, Shinichi Aoyagi
  • Polypeptide having larvae growth inhibiting or insecticidal effect on scarabaeidae insects and polynucleotide encoding the same
    Publication number: 20020182693
    Abstract: Through screening using an antibody to a polypeptide that constitutes a parasporal body in sporangia of Bacillus popilliae and has a larvae growth inhibiting or insecticidal effect on a Scarabaeidae insect and through polymerase chain reaction, polynucleotides encoding the polypeptide and polypeptides similar thereto are isolated.
    Type: Application
    Filed: April 12, 2002
    Publication date: December 5, 2002
    Applicant: DAINIPPON INK AND CHEMICALS, INC.
    Inventors: Masao Tanaka, Tomoko Yokoyama, Moriichi Aoyagi, Makoto Hasegawa, Gaku Ehara, Masaharu Kimura, Hideji Nishihashi