Patents by Inventor Seisuke Izawa

Seisuke Izawa 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).

  • PROCESS FOR PRODUCING A PARTICULATE COMPOSITION COMPRISING ANHYDROUS CRYSTALLINE 2-O-ALPHA-D-GLUCOSYL-L-ASCORBIC ACID
    Publication number: 20140178943
    Abstract: The invention provides a process for enabling the production of a particulate composition containing anhydrous crystalline ascorbic acid 2-glucoside that does not significantly cake even when the production yield of ascorbic acid 2-glucoside does not reach 35% by weight.
    Type: Application
    Filed: March 7, 2012
    Publication date: June 26, 2014
    Applicant: HAYASHIBARA CO., LTD.
    Inventors: Takashi Shibuya, Seisuke Izawa, Tomoyuki Nishimoto, Shigeharu Fukuda, Toshio Miyake
  • PROCESS FOR PRODUCING A PARTICULATE COMPOSITION COMPRISING ANHYDROUS CRYSTALLINE 2-O-ALPHA-D-GLUCOSYL-L-ASCORBIC ACID
    Publication number: 20130295618
    Abstract: The invention provides a process for enabling the production of a particulate composition containing anhydrous crystalline ascorbic acid 2-glucoside that does not significantly cake even when the production yield of ascorbic acid 2-glucoside does not reach 35% by weight.
    Type: Application
    Filed: March 7, 2012
    Publication date: November 7, 2013
    Applicant: HAYASHIBARA CO., LTD.
    Inventors: Takashi Shibuya, Seisuke Izawa, Tomoyuki Nishimoto, Shigeharu Fukuda, Toshio Miyake
  • PULLULAN-CONTAINING POWDER, METHOD FOR PRODUCING THE SAME AND USE THEREOF
    Publication number: 20130195941
    Abstract: The present invention aims to provide a particulate composition containing pullulan, which can be produced without employing any complicated purification step such as solvent precipitation and, when formed into a film, exhibits a higher rupture strength compared to conventional ones; a process for producing the same; and uses thereof.
    Type: Application
    Filed: June 17, 2011
    Publication date: August 1, 2013
    Applicant: HAYASHIBARA CO., LTD.
    Inventors: Takashi Shibuya, Seisuke Izawa, Toshio Miyake
  • HYDROUS CRYSTALLINE 2-O-alpha-D-GLUCOSYL-L-ASCORBIC ACID, PARTICULATE COMPOSITION COMPRISING THE SAME, THEIR PREPARATION AND USES
    Publication number: 20130172542
    Abstract: The present invention has objects to provide a novel crystalline 2-O-?-glucosyl-L-ascorbic acid and its production process and uses, and solves the above objects by providing hydrous crystalline 2-O-?-glucosyl-L-ascorbic acid, a particulate composition containing hydrous crystalline 2-O-?-glucosyl-L-ascorbic acid, and their production processes and uses.
    Type: Application
    Filed: September 6, 2011
    Publication date: July 4, 2013
    Applicant: HAYASHIBARA CO., LTD.
    Inventors: Takashi Shibuya, Seisuke Izawa, Shigeharu Fukuda
  • PARTICULATE COMPOSITION CONTAINING ANHYDROUS CRYSTALLINE 2-O-alpha-D-GLUCOSYL-L-ASCORBIC ACID, PROCESS FOR PRODUCING THE SAME, AND USES THEREOF
    Publication number: 20110091726
    Abstract: The present invention aims to provide a particulate composition containing anhydrous crystalline 2-O-?-D-glucosyl-L-ascorbic acid having a significantly, hardly solidifiable property compared to conventional ones in a grade for use in quasi-drugs; a process for producing the same; and uses thereof. The present invention solves the above object by providing a particulate composition containing anhydrous crystalline 2-O-?-D-glucosyl-L-ascorbic in an amount of over 98.0% by weight but less than 99.9% by weight, on a dry solid basis; or a degree of crystallinity of 90% or higher for anhydrous crystalline 2-O-?-D-glucosyl-L-ascorbic acid, when calculated based on a profile of powder X-ray diffraction analysis of the particulate composition, and a dynamic vapor sorption level of 0.01% by weight or lower, when kept at 25° C.
    Type: Application
    Filed: September 3, 2010
    Publication date: April 21, 2011
    Applicant: Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo
    Inventors: Takashi Shibuya, Seisuke Izawa, Tomoyuki Nishimoto, Shigeharu Fukuda, Toshio Miyake