Patents by Inventor Kazuya Mitsuhashi

Kazuya Mitsuhashi 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: 10423070
    Abstract: A substrate treating method includes a determining step for determining a treating condition for hydrophobizing a surface of a substrate, based on a target regarding a dissolved area size in a resist pattern, and a treating step for hydrophobizing the surface of the substrate with the treating condition determined in the determining step before forming resist film on the surface of the substrate.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: September 24, 2019
    Assignee: SCREEN Holdings Co., Ltd.
    Inventors: Masashi Kanaoka, Masanori Imamura, Taiji Matsu, Hidetoshi Sagawa, Atsushi Tanaka, Kazuhiro Tadokoro, Kazuya Ono, Shinichi Takada, Tsuyoshi Mitsuhashi
  • Patent number: 9687422
    Abstract: Methods of obtaining a carotenoid-containing composition were developed, in which degradation of carotenoids is suppressed even though extraction and purification are performed on a culture of microorganism that produces carotenoids including astaxanthin by simple steps using a lower alcohol which is a conventionally known solvent, and the compositions have high astaxanthin content and contain highly pure carotenoids and also have satisfactory crystal properties. Further addition of a simple step that promotes isomerization of astaxanthin successfully improved the carotenoid yield.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: June 27, 2017
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, DAICEL CORPORATION
    Inventors: Kazuya Mitsuhashi, Takanori Someya, Motoko Hayashi, Manabu Yamada, Shotaro Uchizawa, Kazuaki Hirasawa, Yuki Kawashima
  • Publication number: 20150272835
    Abstract: Methods of obtaining a carotenoid-containing composition were developed, in which degradation of carotenoids is suppressed even though extraction and purification are performed on a culture of microorganism that produces carotenoids including astaxanthin by simple steps using a lower alcohol which is a conventionally known solvent, and the compositions have high astaxanthin content and contain highly pure carotenoids and also have satisfactory crystal properties. Further addition of a simple step that promotes isomerization of astaxanthin successfully improved the carotenoid yield.
    Type: Application
    Filed: October 2, 2013
    Publication date: October 1, 2015
    Applicants: JX NIPPON OIL & ENERGY CORPORATION, DAICEL CORPORATION
    Inventors: Kazuya Mitsuhashi, Takanori Someya, Motoko Hayashi, Manabu Yamada, Shotaro Uchizawa, Kazuaki Hirasawa, Yuki Kawashima
  • Patent number: 6969600
    Abstract: A novel carbonyl reductase useful for producing alcohol, particularly derivatives of (S)-4-halo-3-hydroxybutyrate ester, is provided. A novel carbonyl reductase derived from Kluyveromyces aestuarii and the nucleic acid encoding the enzyme are provided. The carbonyl reductase has excellent reductase activity and stereoselectivity. The carbonyl reductase reduces ketone to produce alcohol. It can be particularly advantageous when used in industrial production of (S)-4-halo-3-hydroxybutyrate ester.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: November 29, 2005
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Norihiro Kimoto, Hiroaki Yamamoto, Kazuya Mitsuhashi
  • Patent number: 6905861
    Abstract: D-aminoacylase derived from fungi is provided. The fungi capable of producing D-aminoacylase include those belonging to the genus Hypomyces, Fusarium, Auricularia, Pythium, and Menisporopsis. The fungal D-aminoacylase is useful for efficiently producing D-amino acids from N-acetyl-D-amino acids.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: June 14, 2005
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kazuya Mitsuhashi, Hiroaki Yamamoto, Akinobu Matsuyama, Shinji Tokuyama
  • Patent number: 6887697
    Abstract: The present invention provides the D-aminoacylase-encoding gene derived from Hypomyces mycophilus, a filamentous fungus, the polypeptide encoded by the gene, and the homologues thereof. The D-aminoacylase of the present invention is capable of producing D-tryptophan from N-acetyl-D-tryptophan. D-tryptophan is useful as a medicinal raw material or the like.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: May 3, 2005
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kazuya Mitsuhashi, Hiroaki Yamamoto, Akinobu Matsuyama, Shinji Tokuyama
  • Patent number: 6830907
    Abstract: An objective of the present invention is to provide polypeptides capable of retaining a strong enzyme activity of formate dehydrogenase in the presence of an organic solvent and to provide the uses thereof. Formate dehydrogenase mutant polypeptides, which are resistant to organic solvents, were constructed by substituting cysteines at position 146 and/or at position 256 in the amino acid sequence of Mycobacterium vaccae-derived formate dehydrogenase by site-directed mutagenesis. The polypeptides have strong activities of formate dehydrogenase in the presence of an organic solvent. The mutants are useful for the production of alcohols using ketones as raw material, etc.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: December 14, 2004
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kazuya Mitsuhashi, Hiroaki Yamamoto, Norihiro Kimoto
  • Publication number: 20040197773
    Abstract: A novel carbonyl reductase useful for producing alcohol, particularly derivatives of (S)-4-halo-3-hydroxybutyrate ester, is provided. A novel carbonyl reductase derived from Kluyveromyces aestuarii and the nucleic acid encoding the enzyme are provided. The carbonyl reductase has excellent reductase activity and stereoselectivity. The carbonyl reductase reduces ketone to produce alcohol. It can be particularly advantageous when used in industrial production of (S)-4-halo-3-hydroxybutyrate ester.
    Type: Application
    Filed: May 14, 2001
    Publication date: October 7, 2004
    Applicant: Daicel Chemical Industries, Ltd., a Japanese Corporation
    Inventors: Norihiro Kimoto, Hiroaki Yamamoto, Kazuya Mitsuhashi
  • Publication number: 20040166564
    Abstract: The present invention provides the D-aminoacylase-encoding gene derived from Hypomyces mycophilus, a filamentous fungus, the polypeptide encoded by the gene, and the homologues thereof. The D-aminoacylase of the present invention is capable of producing D-tryptophan from N-acetyl-D-tryptophan. D-tryptophan is useful as a medicinal raw material or the like.
    Type: Application
    Filed: December 31, 2003
    Publication date: August 26, 2004
    Applicant: Daicel Chemical Industries, Ltd., a Japan corporation
    Inventors: Kazuya Mitsuhashi, Hiroaki Yamamoto, Akinobu Matsuyama, Shinji Tokuyama
  • Patent number: 6780619
    Abstract: The present invention provides the D-aminoacylase-encoding gene derived from Hypomyces mycophilus, a filamentous fungus, the polypeptide encoded by the gene, and the homologues thereof. The D-aminoacylase of the present invention is capable of producing D-tryptophan from N-acetyl-D-tryptophan. D-tryptophan is useful as a medicinal raw material or the like.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: August 24, 2004
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kazuya Mitsuhashi, Hiroaki Yamamoto, Akinobu Matsuyama, Shinji Tokuyama
  • Patent number: 6777224
    Abstract: The present invention provides a method for enzymatically producing optically active mandelic acid derivatives. An optically active mandelic acid derivative (shown as Formula II) is produced by reacting a culture or cell body of a microorganism, or processed products thereof, with a phenylglyoxylic acid derivative, and then recovering the obtained optically active mandelic acid derivative, wherein the microorganism has the ability to stereo-selectively reduce the phenylglyoxylic acid derivative. An optically active mandelic acid obtained according to the present invention is useful as an intermediate for the synthesis of pharmaceuticals and agricultural chemicals.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: August 17, 2004
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kazuya Mitsuhashi, Hiroaki Yamamoto
  • Publication number: 20030170869
    Abstract: D-aminoacylase derived from fungi is provided. The fungi capable of producing D-aminoacylase include those belonging to the genus Hypomyces, Fusarium, Auricularia, Pythium, and Menisporopsis. The fungal D-aminoacylase is useful for efficiently producing D-amino acids from N-acetyl-D-amino acids.
    Type: Application
    Filed: January 17, 2003
    Publication date: September 11, 2003
    Applicant: Daicel Chemical Industries, Ltd., a Japan corporation
    Inventors: Kazuya Mitsuhashi, Hiroaki Yamamoto, Akinobu Matsuyama, Shinji Tokuyama
  • Publication number: 20030157677
    Abstract: An objective of the present invention is to provide polypeptides capable of retaining a strong enzyme activity of formate dehydrogenase in the presence of an organic solvent and to provide the uses thereof.
    Type: Application
    Filed: November 28, 2001
    Publication date: August 21, 2003
    Inventors: Kazuya Mitsuhashi, Hiroaki Yamamoto, Norihiro Kimoto
  • Publication number: 20030119173
    Abstract: The present invention provides a method for enzymatically producing optically active mandelic acid derivatives. An optically active mandelic acid derivative (shown as Formula II) is produced by reacting a culture or cell body of a microorganism, or processed products thereof, with a phenylglyoxylic acid derivative, and then recovering the obtained optically active mandelic acid derivative, wherein the microorganism has the ability to stereo-selectively reduce the phenylglyoxylic acid derivative. An optically active mandelic acid obtained according to the present invention is useful as an intermediate for the synthesis of pharmaceuticals and agricultural chemicals.
    Type: Application
    Filed: October 23, 2002
    Publication date: June 26, 2003
    Inventors: Kazuya Mitsuhashi, Hiroaki Yamamoto
  • Publication number: 20030113893
    Abstract: D-aminoacylase derived from fungi is provided. The fungi capable of producing D-aminoacylase include those belonging to the genus Hypomyces, Fusarium, Auricularia, Pythium, and Menisporopsis. The fungal D-aminoacylase is useful for efficiently producing D-amino acids from N-acetyl-D-amino acids.
    Type: Application
    Filed: September 10, 2002
    Publication date: June 19, 2003
    Applicant: Daicel Chemical Industries, Ltd., a Japan corporation
    Inventors: Kazuya Mitsuhashi, Hiroaki Yamamoto, Akinobu Matsuyama, Shinji Tokuyama
  • Patent number: 6514742
    Abstract: D-aminoacylase derived from fungi is provided. The fungi capable of producing D-aminoacylase include those belonging to the genus Hypomyces, Fusarium, Auricularia, Pythium, and Menisporopsis. The fungal D-aminoacylase is useful for efficiently producing D-amino acids from N-acetyl-D-amino acids.
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: February 4, 2003
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kazuya Mitsuhashi, Hiroaki Yamamoto, Akinobu Matsuyama, Shinji Tokuyama
  • Patent number: 6485948
    Abstract: A novel carbonyl reductase useful for producing alcohol, particularly derivatives of (S)-4-halo-3-hydroxybutyrate ester, is provided. A novel carbonyl reductase derived from Kluyveromyces aestuarii and the nucleic acid encoding the enzyme are provided. The carbonyl reductase has excellent reductase activity and stereoselectivity. The carbonyl reductase reduces ketone to produce alcohol. It can be particularly advantageous when used in industrial production of (S)-4-halo-3-hydroxybutyrate ester.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: November 26, 2002
    Assignee: Daicel Corporation Industries, Ltd.
    Inventors: Norihiro Kimoto, Hiroaki Yamamoto, Kazuya Mitsuhashi
  • Publication number: 20020151035
    Abstract: The present invention provides the D-aminoacylase-encoding gene derived from Hypomyces mycophilus, a filamentous fungus, the polypeptide encoded by the gene, and the homologues thereof. The D-aminoacylase of the present invention is capable of producing D-tryptophan from N-acetyl-D-tryptophan. D-tryptophan is useful as a medicinal raw material or the like.
    Type: Application
    Filed: January 26, 2001
    Publication date: October 17, 2002
    Inventors: Kazuya Mitsuhashi, Hiroaki Yamamoto, Akinobu Matsuyama, Shinji Tokuyama
  • Publication number: 20020127679
    Abstract: A novel carbonyl reductase useful for producing alcohol, particularly derivatives of (S)-4-halo-3-hydroxybutyrate ester, is provided. A novel carbonyl reductase derived from Kluyveromyces aestuarii and the nucleic acid encoding the enzyme are provided. The carbonyl reductase has excellent reductase activity and stereoselectivity. The carbonyl reductase reduces ketone to produce alcohol. It can be particularly advantageous when used in industrial production of (S)-4-halo-3-hydroxybutyrate ester.
    Type: Application
    Filed: August 27, 2001
    Publication date: September 12, 2002
    Applicant: Daicel Corporation Industries, Ltd., a Japanese corporation
    Inventors: Norihiro Kimoto, Hiroaki Yamamoto, Kazuya Mitsuhashi
  • Patent number: 6416986
    Abstract: A novel carbonyl reductase useful for producing alcohol, particularly derivatives of (S)-4-halo-3-hydroxybutyrate ester, is provided. A novel carbonyl reductase derived from Kluyveromyces aestuarii and the nucleic acid encoding the enzyme are provided. The carbonyl reductase has excellent reductase activity and stereoselectivity. The carbonyl reductase reduces ketone to produce alcohol. It can be particularly advantageous when used in industrial production of (S)-4-halo-3-hydroxybutyrate ester.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: July 9, 2002
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Norihiro Kimoto, Hiroaki Yamamoto, Kazuya Mitsuhashi