Patents by Inventor Mitsuyoshi Okuda

Mitsuyoshi Okuda 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: 9650623
    Abstract: Providing an alkaline protease exhibiting an improved solubility in a liquid detergent. A mutant alkaline protease consisting of the amino acid sequence represented by SEQ ID No: 2 or an amino acid sequence having 80% or more sequence identity therewith, in which at least one amino acid residue selected from the group consisting of the amino acid residues at predetermined positions of the amino acid sequence represented by SEQ ID No: 2 or corresponding positions thereto are substituted.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: May 16, 2017
    Assignee: Kao Corporation
    Inventors: Masatoshi Tohata, Yumi Nishimura, Yasunao Wada, Katsuhisa Saeki, Mitsuyoshi Okuda
  • Patent number: 9169458
    Abstract: The present invention provides a mutant alkaline cellulase having enhanced anti-redeposition ability.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: October 27, 2015
    Assignee: Kao Corporation
    Inventors: Ayako Shimazu, Keiji Endo, Mitsuyoshi Okuda
  • Publication number: 20150056681
    Abstract: Providing an alkaline protease exhibiting an improved solubility in a liquid detergent. A mutant alkaline protease consisting of the amino acid sequence represented by SEQ ID No: 2 or an amino acid sequence having 80% or more sequence identity therewith, in which at least one amino acid residue selected from the group consisting of the amino acid residues at predetermined positions of the amino acid sequence represented by SEQ ID No: 2 or corresponding positions thereto are substituted.
    Type: Application
    Filed: April 9, 2013
    Publication date: February 26, 2015
    Applicant: Kao Corporation
    Inventors: Masatoshi Tohata, Yumi Nishimura, Yasunao Wada, Katsuchisa Saeki, Mitsuyoshi Okuda
  • Patent number: 8778650
    Abstract: The invention is directed to an alkaline protease that has the amino acid sequence of SEQ ID NO: 2 or of an amino acid sequence having an identity of 90% or more thereto, except that one or more amino acid residues at positions selected from (a) position 6, (b) position 15, (c) position 16, (d) position 65, (e) position 66, (f) position 82, (g) position 83, (h) position 204, (i) position 319, and (j) position 337 of SEQ ID NO: 2, or at positions corresponding thereto, are substituted with certain other amino acid residues. The invention is also directed to detergent compositions and culture medium that contain the protease.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: July 15, 2014
    Assignee: Kao Corporation
    Inventors: Masatoshi Tohata, Mitsuyoshi Okuda, Tsuyoshi Sato, Keiji Endo, Katsuhisa Saeki
  • Publication number: 20130029897
    Abstract: The present invention provides a mutant alkaline cellulase having enhanced anti-redeposition ability.
    Type: Application
    Filed: March 11, 2011
    Publication date: January 31, 2013
    Applicant: Kao Corporation
    Inventors: Ayako Shimazu, Keiji Endo, Mitsuyoshi Okuda
  • Patent number: 8309339
    Abstract: It is an object of the present invention to provide alkaline proteases having industrially sufficient protein productivity and a significant detergency. In the alkaline proteases, the amino acid residues at (a) position 9, (b) position 49, (c) position 194, (d) position 212, (e) position 237, (f) position 245, (g) position 281, (h) position 313, (i) position 379 and (j) position 427 in SEQ ID NO: 2 are selected from the following amino acid residues; Position (a); glutamine, Position (b); glutamine, Position (c); lysine or arginine, Position (d); arginine, asparagine or glutamine, Position (e); asparagines, Position (f); asparagines. Position (g); arginine, Position (h); asparagines, Position (i); lysine, arginine, glutamic acid or aspartic acid, and Position (j); arginine.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: November 13, 2012
    Assignee: Kao Corporation
    Inventor: Mitsuyoshi Okuda
  • Publication number: 20120058928
    Abstract: An alkaline protease variant derived from an alkaline protease consisting of an amino acid sequence represented by SEQ ID NO: 2 or consisting of an amino acid sequence having an identity of 90% or more therewith, which variant has mutations wherein one or more amino acid residues at positions selected from (a) position 6, (b) position 15, (c) position 16, (d) position 65, (e) position 66, (f) position 82, (g) position 83, (h) position 204, (i) position 319, and (j) position 337 of the amino acid sequence represented by SEQ ID NO: 2, or at positions corresponding thereto are substituted with the following amino acid residues: (a) or a position corresponding thereto: Typ, Leu, Val, Ile, Met, Tyr, Gln, Lys, Thr, Phe, Arg, Ser, Cys, Ala, or His; (b) or a position corresponding thereto: Glu, Met, Asp, Val, Gln, Arg, Cys, Trp, Ala, or Phe; (c) or a position corresponding thereto: Met, Glu, Arg, Val, Lys, Phe, Tyr, Ile, His, Asp, or Cys; (d) or a position corresponding thereto: Trp; (e) or a position corresponding t
    Type: Application
    Filed: April 26, 2010
    Publication date: March 8, 2012
    Applicant: Kao Corporation
    Inventors: Masatoshi Tohata, Mitsuyoshi Okuda, Tsuyoshi Sato, Keiji Endo, Katsuhisa Saeki
  • Patent number: 7776578
    Abstract: Provided in the present invention is an alkaline protease wherein an amino acid residue at (a) position 65, (b) position 101, (c) position 163, (d) position 170, (e) position 171, (f) position 273, (g) position 320, (h) position 359 or (i) position 387 of SEQ. ID NO:1 or at a position corresponding thereto has been selected from the following amino acid residues: position (a): proline, position (b): asparagine, position (c): histidine, aspartic acid, phenylalanine, lysine, asparagine, serine, isoleucine, leucine, glutamine, threonine and valine, position (d): valine and leucine, position (e): alanine, glutamic acid, glycine and threonine, position (f): isoleucine, glycine and threonine, position (g): phenylalanine, valine, threonine, leucine, isoleucine and glycine, position (h): serine, leucine, valine, isoleucine and glutamine, position (i): alanine, lysine, glutamine, glutamic acid, arginine and histidine.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: August 17, 2010
    Assignee: Kao Corporation
    Inventors: Mitsuyoshi Okuda, Tsuyoshi Sato, Kazuhiro Saito, Nobuyuki Sumitomo, Yoshifumi Izawa, Katsuhisa Saeki, Tohru Kobayashi, Masafumi Nomura
  • Publication number: 20100184188
    Abstract: It is an object of the present invention to provide alkaline proteases having industrially sufficient protein productivity and a significant detergency. In the alkaline proteases, the amino acid residues at (a) position 9, (b) position 49, (c) position 194, (d) position 212, (e) position 237, (f) position 245, (g) position 281, (h) position 313, (i) position 379 and (j) position 427 in SEQ ID NO: 2 are selected from the following amino acid residues; Position (a); glutamine, Position (b); glutamine, Position (c); lysine or arginine, Position (d); arginine, asparagine or glutamine, Position (e); asparagines, Position (f); asparagines. Position (g); arginine, Position (h); asparagines, Position (i); lysine, arginine, glutamic acid or aspartic acid, and Position (j); arginine.
    Type: Application
    Filed: March 6, 2008
    Publication date: July 22, 2010
    Applicant: Kao Corporation
    Inventor: Mitsuyoshi Okuda
  • Patent number: 7473544
    Abstract: The present invention provides an alkaline protease exhibiting high detergency and productivity, which is obtained by further enhancing the detergency of an alkaline protease effective against complex dirt and enhancing the specific activity.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: January 6, 2009
    Assignee: Kao Corporation
    Inventors: Mitsuyoshi Okuda, Tsuyoshi Sato, Yasushi Takimura, Nobuyuki Sumitomo, Tohru Kobayashi
  • Patent number: 7429642
    Abstract: An alkaline protease having an amino acid with one or more amino acid residues selected from among those located at (a) position 15, (b) position 16, (c) position 166, (d) position 167, (e) position 187, (f) position 346, and (g) position 405 of the amino acid sequence of SEQ No; 1, or at positions corresponding to these positions, are the following amino acid residues, respectively: (a): histidine, (b): threonine or glutamine, (c): glycine, (d): valine, (e): serine, (f): arginine, and (g); and a gene encoding the alkaline protease.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: September 30, 2008
    Assignee: Kao Corporation
    Inventors: Mitsuyoshi Okuda, Tsuyoshi Sato, Yasushi Takimura, Nobuyuki Sumitomo, Tohru Kobayashi
  • Patent number: 7405271
    Abstract: An alkaline protease having an amino acid with one or more amino acid residues selected from among those located at (a) position 63, (b) position 89, (c) position 120, (d) positions 63 and 187, (e) position 226, (f) position 296, (g) position 304 of the amino acid sequence of SEQ ID NO: 1, or at positions corresponding to these positions, are the following amino acid residues, respectively: (a): serine, (b): histidine, (c): arginine, (d): serine,(e): tyrosine, (f): valine, and (g): serine; and a gene encoding the alkaline protease.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: July 29, 2008
    Assignee: Kao Corporation
    Inventors: Tsuyoshi Sato, Mitsuyoshi Okuda, Shingo Koyama, Yoshifumi Izawa, Tohru Kobayashi
  • Publication number: 20080177040
    Abstract: Provided in the present invention is an alkaline protease wherein an amino acid residue at (a) position 65, (b) position 101, (c) position 163, (d) position 170, (e) position 171, (f) position 273, (g) position 320, (h) position 359 or (i) position 387 of SEQ. ID NO:1 or at a position corresponding thereto has been selected from the following amino acid residues: position (a): proline, position (b): asparagine, position (c): histidine, aspartic acid, phenylalanine, lysine, asparagine, serine, isoleucine, leucine, glutamine, threonine and valine, position (d): valine and leucine, position (e): alanine, glutamic acid, glycine and threonine, position (f): isoleucine, glycine and threonine, position (g): phenylalanine, valine, threonine, leucine, isoleucine and glycine, position (h): serine, leucine, valine, isoleucine and glutamine, position (i): alanine, lysine, glutamine, glutamic acid, arginine and histidine.
    Type: Application
    Filed: March 14, 2008
    Publication date: July 24, 2008
    Applicant: KAO CORPORATION
    Inventors: Mitsuyoshi Okuda, Tsuyoshi Sato, Kazuhiro Saito, Nobuyuki Sumitomo, Yoshifumi Izawa, Katsuhisa Saeki, Tohru Kobayashi, Masafumi Nomura
  • Patent number: 7371839
    Abstract: The present invention relates to alkaline proteases having high specific activity and strong oxidant resistance. The present invention also relates to alkaline proteases having excellent detergency that are to be added to a detergent.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: May 13, 2008
    Assignee: KAO Corporation
    Inventors: Yuji Hatada, Akinori Ogawa, Yasushi Kageyama, Tsuyoshi Sato, Hiroyuki Araki, Nobuyuki Sumitomo, Mitsuyoshi Okuda, Katsuhisa Saeki
  • Patent number: 7368273
    Abstract: An alkaline protease wherein an amino acid residue at (a) position 65, (b) position 101, (c) position 163, (d) position 17-0, (e) position 171, (f) position 273, (g) position 320, (h) position 359 or (i) position 387 of SEQ. ID NO: 2 or at a position corresponding thereto has been selected from the following amino acid residues: position (a): proline, position (b): asparagine, position (e): histidine, aspartic acid, phenylalanine, lysine, asparagine, seine, isoleucine, leucine, glutamine, threonine and valine, position (d): valine and leucine, position (e): alanine, glutamic acid, glycine and threonine, position (K): isoleucine, glycine and threonine, position (g): phenylalanine, valine, threonine, leucine, isoleucine and glycine, position (h): seine, leucine, valine, isoleucine and glutamine, position (i): alanine, lysine, glutamine, glutamic acid, arginine and histidine.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: May 6, 2008
    Assignee: Kao Corporation
    Inventors: Mitsuyoshi Okuda, Tsuyoshi Sato, Kazuhiro Saito, Nobuyuki Sumitomo, Yoshifumi Izawa, Katsuhisa Saeki, Tohru Kobayashi, Masafumi Nomura
  • Patent number: 7297528
    Abstract: An alkaline protease having the following properties; a gene encoding the same; a microorganism producing the same; and washing compositions containing the same; (i) acting over a broad pH value range of 4 to 13 and achieving, at pH 6 to 12, 80% or more the activity at the optimum pH value; (ii) when treated at 40° C. for 30 minutes, being stable over a pH value range of 6 to 11; (iii) having an isoelectric point of about 8.9 to 9.1; and (iv) having casein digesting activity that is not inhibited by oleic acid. The alkaline protease of the present invention is highly stable to various surface active agents and fatty acids, and exhibits high stability to oxidizing agents, and is therefore useful as an enzyme to be used in detergents for automatic dishwashers and laundry detergents, both containing bleaching components.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: November 20, 2007
    Assignee: Kao Corporation
    Inventors: Mikio Takaiwa, Mitsuyoshi Okuda, Katsuhisa Saeki, Hiromi Kubota, Jun Hitomi, Yasushi Kageyama, Shitsuw Shikata, Masafumi Nomura
  • Patent number: 7163807
    Abstract: The present invention relates to genes expressing an alkaline protease having a prepro sequence, vectors containing the same, and transformants containing said vector. The present invention also relates to a method for producing an alkaline protease.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: January 16, 2007
    Assignee: Kao Corporation
    Inventors: Tsuyoshi Sato, Mitsuyoshi Okuda, Yasushi Takimura, Nobuyuki Sumitomo, Masafumi Nomura, Tohru Kobayashi
  • Patent number: 7101698
    Abstract: The present invention relates to an alkaline protease having a prepro sequence, wherein the prepro sequence is a mutant sequence of the amino acid sequence of SEQ ID NO: 1 or an amino acid sequence having 80% or higher homology to the amino acid sequence of SEQ ID NO: 1, in which amino acid residues at (a) position 52, (b) position 75, and (c) position 142 of SEQ ID NO: 1, or amino acid residues at positions corresponding to these positions are substituted by the following amino acid residues: at position (a): aspartic acid or arginine, at position (b): alanine or arginine, and at position (c): lysine; and the alkaline protease, when in a mature form, has the amino acid sequence of SEQ ID NO: 2 or an amino acid sequence having a homology of 80% or higher to this amino acid sequence. The present invention also relates to, for example, a gene encoding the alkaline protease. According to the present invention, an alkaline protease increased in production can be produced.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: September 5, 2006
    Assignee: Kao Corporation
    Inventors: Tsuyoshi Sato, Mitsuyoshi Okuda, Yasushi Takimura, Nobuyuki Sumitomo, Masafumi Nomura, Tohru Kobayashi
  • Publication number: 20060105428
    Abstract: The present invention relates to genes expressing an alkaline protease having a prepro sequence, vectors containing the same, and transformants containing said vector. The present invention also relates to a method for producing an alkaline protease.
    Type: Application
    Filed: December 28, 2005
    Publication date: May 18, 2006
    Applicant: KAO CORPORATION
    Inventors: Tsuyoshi Sato, Mitsuyoshi Okuda, Yasushi Takimura, Nobuyuki Sumitomo, Masafumi Nomura, Tohru Kobayashi
  • Publication number: 20060078978
    Abstract: The present invention provides an alkaline protease exhibiting high detergency and productivity, which is obtained by further enhancing the detergency of an alkaline protease effective against complex dirt and enhancing the specific activity.
    Type: Application
    Filed: September 27, 2005
    Publication date: April 13, 2006
    Applicant: Kao Corporation
    Inventors: Mitsuyoshi Okuda, Tsuyoshi Sato, Yasushi Takimura, Nobuyuki Sumitomo, Tohru Kobayashi