Patents by Inventor Kenju Sasaki

Kenju Sasaki 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: 9873098
    Abstract: A three-component mixing apparatus and a three-component mixing adhesive kit, which allow anyone to easily and uniformly mix three kinds of drugs in mixing a three-component adhesive used in, e.g., surgical procedure (or treatment) or dental procedure (or treatment), includes a syringe filled with a first drug; a plunger; and an infusion-needle connector having a connecting part for a second drug container and a connecting part for a third drug container and a confluent path formed on a base end part. The first drug, the second drug and the third drug are mixed in the syringe by removably attaching the infusion-needle connector to a discharge opening of the syringe, the second drug container to its connecting part and the third drug container to its connecting part and then pulling the plunger inserted into the syringe to introduce the second drug and the third drug into the syringe.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: January 23, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Noriaki Asada, Kenju Sasaki, Shinya Aoki, Kazuya Sakata, Hiroshi Naruse
  • Publication number: 20150117140
    Abstract: A three-component mixing apparatus and a three-component mixing adhesive kit, which allow anyone to easily and uniformly mix three kinds of drugs in mixing a three-component adhesive used in, e.g., surgical procedure (or treatment) or dental procedure (or treatment), includes a syringe filled with a first drug; a plunger; and an infusion-needle connector having a connecting part for a second drug container and a connecting part for a third drug container and a confluent path formed on a base end part. The first drug, the second drug and the third drug are mixed in the syringe by removably attaching the infusion-needle connector to a discharge opening of the syringe, the second drug container to its connecting part and the third drug container to its connecting part and then pulling the plunger inserted into the syringe to introduce the second drug and the third drug into the syringe.
    Type: Application
    Filed: April 25, 2013
    Publication date: April 30, 2015
    Inventors: Noriaki Asada, Kenju Sasaki, Shinya Aoki, Kazuya Sakata, Hiroshi Naruse
  • Patent number: 7700330
    Abstract: The invention is to provide a process for effectively removing impurities contained in an amide compound-containing solution by making an amide compound-containing solution, particularly an amide compound-containing solution produced by a hydration reaction of a nitrile compound by using a microorganism fungus body containing nitrile hydratase or a processed product of the microorganism fungus body, in contact with activated carbon under acidic conditions.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: April 20, 2010
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takeya Abe, Kiyoshi Itou, Kenju Sasaki, Seiichi Watanabe, Tamotsu Asano
  • Patent number: 7002041
    Abstract: An amide composition containing an unsaturated amide, a sulfur-containing compound, and a weak acid salt. The composition can include an amide in crystalline form or the composition can be in form of aqueous solution. The composition can exhibit improved stability whereby polymerization of the amide is inhibited.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: February 21, 2006
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takeya Abe, Kenju Sasaki
  • Patent number: 6849432
    Abstract: The invention is a process for continuously producing an amide compound by reacting a microorganism fungus body containing nitrile hydratase or a processed product of the microorganism fungus body with a nitrile compound in an aqueous medium, characterized in that after contacting said fungus body or said processed product of said fungus body with said nitrile compound in said aqueous medium, a reaction solution thus obtained is further subjected to reaction under conditions having a plug flow region, and according to the invention, an amide compound aqueous solution of a high concentration a high purity can be easily obtained in an extremely high conversion rate of a nitrile compound without a condensation process.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: February 1, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takeya Abe, Kiyoshi Ito, Kenju Sasaki, Seiichi Watanabe, Toshihisa Tachibana, Tamotsu Asano
  • Publication number: 20030104586
    Abstract: The invention is to provide a process for effectively removing impurities contained in an amide compound-containing solution by making an amide compound-containing solution, particularly an amide compound-containing solution produced by a hydration reaction of a nitrile compound by using a microorganism fungus body containing nitrile hydratase or a processed product of the microorganism fungus body, in contact with activated carbon under acidic conditions.
    Type: Application
    Filed: September 14, 2001
    Publication date: June 5, 2003
    Inventors: Takeya Abe, Kiyoshi Itou, Kenju Sasaki, Seiichi Watanabe, Tamotsu Asano
  • Publication number: 20030088125
    Abstract: An amide composition containing an unsaturated amide, a sulfur-containing compound, and a weak acid salt. The composition can include an amide in crystalline form or the composition can be in form of aqueous solution. The composition can exhibit improved stability whereby polymerization of the amide is inhibited.
    Type: Application
    Filed: November 4, 2002
    Publication date: May 8, 2003
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Takeya Abe, Kenju Sasaki
  • Publication number: 20020160466
    Abstract: The invention is a process for continuously producing an amide compound by reacting a microorganism fungus body containing nitrile hydratase or a processed product of the microorganism fungus body with a nitrile compound in an aqueous medium, characterized in that after contacting said fungus body or said processed product of said fungus body with said nitrile compound in said aqueous medium, a reaction solution thus obtained is further subjected to reaction under conditions having a plug flow region, and according to the invention, an amide compound aqueous solution of a high concentration a high purity can be easily obtained in an extremely high conversion rate of a nitrile compound without a condensation process.
    Type: Application
    Filed: November 29, 2001
    Publication date: October 31, 2002
    Inventors: Takeya Abe, Kiyoshi Ito, Kenju Sasaki, Seiichi Watanabe, Toshihisa Tachibana, Tamotsu Asano
  • Publication number: 20010008227
    Abstract: Dry etching of a metal oxide film exposed without being coated with a photoresist is carried out with plasma of a gas obtained by mixing hydrogen iodide with at least one gas selected from the group consisting of a group consisting of fluorine gas and fluorine-based compound gases and a group consisting of nitrogen gas and nitrogen-based compound gases, and then after the exposing of the above mentioned photoresist film to plasma of oxygen gas, the remaining photoresist film is removed by etching with plasma of a gas obtained by mixing oxygen gas with at least one gas selected from the group consisting of a group consisting of fluorine gas and fluorine-based compound gases and a group consisting of nitrogen gas and nitrogen-based compound gases.
    Type: Application
    Filed: August 4, 1998
    Publication date: July 19, 2001
    Inventors: MITSURU SADAMOTO, NORIYUKI YANAGAWA, SATORU IWAMORI, KENJU SASAKI
  • Patent number: 5693306
    Abstract: A process for producing refined hydrogen iodide having organic components of 0.2 ppm by volume or less and water of 0.1 ppm by volume or less by contacting crude hydrogen iodide with a zeolite is disclosed. Crude hydrogen iodide is obtained by reducing iodine with a hydrogenated naphthalene, wherein all of the iodine is dissolved in advance in a portion of the hydrogenated naphthalene to prepare an iodine solution, and the reaction is carried out while adding continuously or intermittently the iodine solution to the balance of the hydrogenated naphthalene. The same operation may be repeated in succession using unreacted hydrogenated naphthalene and fresh iodide. The zeolite is contacted in advance with crude hydrogen iodide, the amount of which is at least 1/3 (weight ratio) relative to the amount of the zeolite, to convert impurities of sulfur components contained in the zeolite to hydrogen sulfide, thereby removing the sulfur components.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: December 2, 1997
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Atsushi Utsunomiya, Kenju Sasaki, Yoshinori Tanaka, Masahiro Omura, Naoki Tomoshige