Patents by Inventor Nobuya Itoh

Nobuya Itoh 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: 10000743
    Abstract: The disclosure provides 2-deoxy-scyllo-inosose reductases derived from a microorganism having the ability to utilize (?)-vibo-quercitol, recombinant vectors and transformants comprising genes encoding the same, and methods of use thereof.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: June 19, 2018
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Kazunobu Konishi, Nobuya Itoh, Junji Kurokawa
  • Publication number: 20160208224
    Abstract: [Problem] The purpose of the present invention is to produce (?)-vibo-quercitol with high efficiency by a simple process. Particularly, it is intended to utilize an enzyme capable of converting 2-deoxy-scyllo-inosose to (?)-vibo-quercitol directly. [Solution] A 2-deoxy-scyllo-inosose reductase which is originated from a microorganism capable of utilizing (?)-vibo-quercitol and has the properties (a) to (c): (a) the enzyme has a catalytic activity of converting 2-deoxy-scyllo-inosose to (?)-vibo-quercitol; (b) the activity of the enzyme becomes maximum at a pH value of 7.0 to 9.0; and (c) a polypeptide moiety in the enzyme has a molecular mass of about 36 kDa as measured by SDS-polyacrylamide electrophoresis.
    Type: Application
    Filed: December 5, 2014
    Publication date: July 21, 2016
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Kazunobu Konishi, Nobuya Itoh, Junji Kurokawa
  • Patent number: 7172894
    Abstract: A gene containing a DNA having the nucleotide sequence encoding any one of the amino acid sequences of the following (a) to (e): (a) an amino acid sequence set out in SEQ ID NO: 1; (b) an amino acid sequence having the sequence homology of 80% or more with (a); (c) an amino acid sequence having the sequence homology of 90% or more with (a); (d) an amino acid sequence encoded by a DNA having the nucleotide sequence set out in SEQ ID NO: 2; (e) an amino acid sequence encoded by a DNA having the nucleotide sequence having the sequence homology of 80% or more with (d).
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: February 6, 2007
    Assignee: Sumitomo Chemical Company Limited
    Inventor: Nobuya Itoh
  • Publication number: 20050272136
    Abstract: There is provided a process for producing 3-hydroxycyclohexanone, which is characterized by the steps of reacting 1,3-cyclohexanedione with an enzyme having an ability to reduce 1,3-cyclohexanedione to 3-hydroxycyclohexanone.
    Type: Application
    Filed: July 11, 2003
    Publication date: December 8, 2005
    Inventors: Nobuya Itoh, Ryuhei Wakita
  • Patent number: 6884607
    Abstract: There are provided a polynucleotide sequence coding for an amino acid sequence capable of preferentially producing (S)-4-bromo-3-hydroxy-butanoate by asymmetrically reducing 4-bromo-3-oxobutanoate, A DNA construct having a promoter in operative linkage with the polynucleotide sequence, a recombinant vector containing the polynucleotide sequence, a transformant, a recombinant vector and the like.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: April 26, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroyuki Asako, Kenji Matsumura, Masatoshi Shimizu, Nobuya Itoh, Ryuhei Wakita
  • Publication number: 20050019816
    Abstract: There are provided a polynucleotide sequence coding for an amino acid sequence capable of preferentially producing (S)-4-bromo-3-hydroxybutanoate by asymmetrically reducing 4-bromo-3-oxobutanoate, A DNA construct having a promoter in operative linkage with the polynucleotide sequence, a recombinant vector containing the polynucleotide sequence, a transformant, a recombinant vector and the like.
    Type: Application
    Filed: August 18, 2004
    Publication date: January 27, 2005
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Hiroyuki Asako, Kenji Matsumura, Masatoshi Shimizu, Nobuya Itoh, Ryuhei Wakita
  • Publication number: 20040171119
    Abstract: A gene containing a DNA having the nucleotide sequence encoding any one of the amino acid sequences of the following (a) to (e):
    Type: Application
    Filed: February 20, 2004
    Publication date: September 2, 2004
    Applicant: Sumitomo Chemical Company, Limited
    Inventor: Nobuya Itoh
  • Publication number: 20030186400
    Abstract: There is disclosed a method for producing optically active 2-hydroxycycloalkanecarboxylic acid characterized by the steps of: allowing 2-oxocycloalkanecarboxylic acid ester to react with a transformant or a dead cell artificially provided with an ability to asymmetrically reduce 2-oxocycloalkanecarboxylic acid ester to optically active 2-hydroxycycloalkanecarboxylic acid ester and an ability to regenerate a coenzyme on which an enzyme having the former ability depends; and collecting the produced optically active 2-hydroxycycloalkanecarboxylic acid ester.
    Type: Application
    Filed: December 24, 2002
    Publication date: October 2, 2003
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Hiroyuki Asako, Ryuhei Wakita, Nobuya Itoh
  • Publication number: 20030003551
    Abstract: Methods are provided to produce highly concentrated dihydroxyacetone-3-phosphate efficiently by a simple catalytic reaction of dihydroxyacetone with the bacterial cells transformed with the gene encoding a dihydroxyacetone kinase or the dihydroxyacetone kinase produced by said bacterium.
    Type: Application
    Filed: July 22, 2002
    Publication date: January 2, 2003
    Applicant: Daicel Chemical Industries, Inc., a Japanese corporation
    Inventor: Nobuya Itoh
  • Patent number: 6451566
    Abstract: Methods are provided to produce highly concentrated dihydroxyacetone-3-phosphate efficiently by a simple catalytic reaction of dihydroxyacetone with the bacterial cells transformed with the gene encoding a dihydroxyacetone kinase or the dihydroxyacetone kinase produced by said bacterium.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: September 17, 2002
    Assignee: Daicel Chemical Industries, Inc.
    Inventor: Nobuya Itoh
  • Patent number: 5330029
    Abstract: A fairing for a motorcycle includes a fairing cover extending from a front end of a frame for a motorcycle rearwardly to cover both sides of an engine operatively mounted adjacent to the front end of the frame of the motorcycle. A plurality of air flow apertures are provided in the fairing for reducing air resistance during cornering of the motorcycle. The plurality of air flow apertures are provided in substantially the entire surface of the fairing. The surface area occupied by the plurality of air flow apertures is more than approximately seventeen percent of the entire surface area of the fairing.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: July 19, 1994
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Heijiro Yoshimura, Yukihiro Yamazaki, Yasutsugu Takahashi, Nobuya Itoh, Masanobu Shibayama, Takahisa Suzuki, Hiroaki Tsukui
  • Patent number: 4636465
    Abstract: A method for determination of glycerol by using a reagent system comprising glycerol dehydrogenase and a pyridine nucleotide coenzyme, characterized in that an enzyme selected from the group consisting of triokinase and dihydroxyacetone kinase is incorporated into the reagent system to eliminate the formed dihydroxyacetone or D-glyceraldehyde in the assay system.
    Type: Grant
    Filed: April 17, 1984
    Date of Patent: January 13, 1987
    Assignee: Amano Pharmaceutical Co., Ltd.
    Inventors: Nobuya Itoh, Kuniyoshi Matsunaga
  • Patent number: 4579822
    Abstract: A process for producing dihydroxyacetone kinase comprises the cultivation of the DHAK-producing strains of genus Schizosaccharomyces, and the purification of dihydroxyacetone kinase from the culture.
    Type: Grant
    Filed: April 10, 1984
    Date of Patent: April 1, 1986
    Assignee: Amano Pharmaceutical Co., Ltd.
    Inventors: Nobuya Itoh, Kuniyoshi Matsunaga