Patents by Inventor Akira Matsunaga

Akira Matsunaga 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: 6478947
    Abstract: Glycerin is effectively produced from a waste oil by a method comprising adding a strongly alkaline reducing water obtained by electrolyzing water containing sodium chloride to a waste oil selected from the group consisting of a waste edible oil, a fossil fuel waste oil and a mixture thereof, and extracting natural glycerin or synthetic glycerin by chemical reaction. Further, reusable edible oil is produced from a waste edible oil by a method comprising electrolyzing an aqueous solution having an electrolyte in an electrolytic cell, mixing a strongly alkaline reducing water generated at a cathode side of the electrolytic cell with a waste edible oil under ordinary temperature condition, and conducting oil/water separation, thereby purifying the waste edible oil to an extent such that it can be edible.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: November 12, 2002
    Assignee: Komeisha Corporation
    Inventors: Kohji Nagasaku, Akira Matsunaga, Sungrak Jang
  • Patent number: 6407277
    Abstract: An organic hydroxyl compound is reacted with a phosphorylating agent comprising phosphorus pentaoxide and at least one compound selected from the group consisting of water, phosphoric acid and polyphosphoric acid and having a value represented by formula (I) of from 0.5 to 1.0, under such a condition that the ratio as defined by formula (II) has a value in the range of from 2.8 to 3.2; or alternatively, an organic hydroxyl compound is reacted with the above phosphorylating agent under such a condition that the ratio as defined by formula (II) has a value in the range of from exceeding 3.2 up to 6.4 and then phosphorus pentaoxide is added to the reaction product in such an amount that the ratio as defined by formula (II) has a value in the range of from 2.8 to 3.2 with respect to the total feeds of the starting materials to conduct further reaction.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: June 18, 2002
    Assignee: Kao Corporation
    Inventors: Akira Matsunaga, Akira Fujiu, Shinji Tsuyutani, Toshio Nozaki, Masayuki Ueda
  • Publication number: 20020036171
    Abstract: Glycerin is effectively produced from a waste oil by a method comprising adding a strongly alkaline reducing water obtained by electrolyzing water containing sodium chloride to a waste oil selected from the group consisting of a waste edible oil, a fossil fuel waste oil and a mixture thereof, and extracting natural glycerin or synthetic glycerin by chemical reaction. Further, reusable edible oil is produced from a waste edible oil by a method comprising electrolyzing an aqueous solution having an electrolyte in an electrolytic cell, mixing a strongly alkaline reducing water generated at a cathode side of the electrolytic cell with a waste edible oil under ordinary temperature condition, and conducting oil/water separation, thereby purifying the waste edible oil to an extent such that it can be edible.
    Type: Application
    Filed: January 12, 2001
    Publication date: March 28, 2002
    Applicant: Komeisha Corporation
    Inventors: Kohji Nagasaku, Akira Matsunaga, Sungrak Jang
  • Patent number: 6034261
    Abstract: An organic hydroxyl compound is reacted with a phosphorylating agent comprising phosphorus pentaoxide and at least one compound selected from the group consisting of water, phosphoric acid and polyphosphoric acid and having a value represented by formula (I) of from 0.5 to 1.0, under such a condition that the ratio as defined by formula (II) has a value in the range of from 2.8 to 3.2; or alternatively, an organic hydroxyl compound is reacted with the above phosphorylating agent under such a condition that the ratio as defined by formula (II) has a value in the range of from exceeding 3.2 up to 6.4 and then phosphorus pentaoxide is added to the reaction product in such an amount that the ratio as defined by formula (II) has a value in the range of from 2.8 to 3.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: March 7, 2000
    Assignee: Kao Corporation
    Inventors: Akira Matsunaga, Akira Fujiu, Shinji Tsuyutani, Toshio Nozaki, Masayuki Ueda
  • Patent number: 5545349
    Abstract: A bleaching composition comprising:(a) Hydrogen peroxide or peroxide that produces hydrogen peroxide in aqueous solution; and(b) An organic acid peroxide precursor that produces organic acid peroxide by reacting with said hydrogen peroxide or peroxide that produces hydrogen peroxide in aqueous solution, wherein said organic acid peroxide is represented by general formula (I): ##STR1## wherein R.sup.1 represents a straight chain or branched chain alkyl or alkenyl group having 1-5 carbon atoms, R.sup.2 represents a straight chain or branched chain alkylene group having 1-8 carbon atoms or a phenylene group that may be substituted with a straight chain or branched chain alkyl group having 1-5 carbon atoms, A represent identical or different alkylene groups having from 2 to 4 carbon atoms, and n represents an integer from 0-100.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: August 13, 1996
    Assignee: Kao Corporation
    Inventors: Jun Kurii, Noboru Nomura, Masami Itoh, Kozo Ohira, Masaki Tsumadori, Akira Matsunaga, Akio Kimura, Shigetoshi Suzue
  • Patent number: 5071585
    Abstract: Phosphoric acid esters represented by the following formulae (I) and (IX) as well as processes for preparing them are disclosed. ##STR1## wherein R.sub.1 represents a linear or branched, alkyl or alkenyl group having a C.sub.1-36 carbon atom content, with or without the hydrogen atom(s) being substituted with fluorine atom(s), or a phenyl group with substituted linear or branched alkyl group(s) having a C.sub.1-15 carbon atom content, R.sub.2 represents an alkylene group having a C.sub.2-3 carbon atom content, R.sub.3 and R.sub.4 independently denote a hydrogen atom or an alkyl group having a C.sub.1-3 carbon atom content, R.sub.5 and R.sub.6 independently denote a hydrogen atom, or an alkyl, alkenyl, or phenyl group with or without the hydrogen atom(s) being substituted with group(s) containing hetero atom(s), excepting for a mercapto group, R.sub.7 and R.sub.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: December 10, 1991
    Assignee: Kao Corporation
    Inventors: Akira Matsunaga, Junya Wakatsuki, Nobutaka Horinishi, Takashi Imamura, Tomihiro Kurosaki
  • Patent number: 5043424
    Abstract: A peptide or protein is modified by reacting a phosphoric acid ester represented by the following general formula (I) with a peptide or protein: ##STR1## wherein R.sub.1 means a linear or branched, C.sub.1-36 alkyl or C.sub.2-36 alkenyl group whose hydrogen atom or atoms may be substituted by the corresponding number of fluorine atom(s) or a phenyl group substituted by at least one linear or branched C.sub.1-15 alkyl group, R.sub.2 denotes a C.sub.2-3 alkylene group, m stands for a number of 0-30, and M is a hydrogen atom, an alkali metal ion, an alkaline earth metal ion, an ammonium ion, an alkylamine residue or an alkanolamine residue.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: August 27, 1991
    Assignee: Kao Corporation
    Inventors: Akira Matsunaga, Nobutaka Horinishi, Junya Wakatsuki, Takashi Imamura, Tomihiro Kurosaki
  • Patent number: 4985412
    Abstract: Phosphoric acid esters represented by the following formulae (I) and (IX) as well as processes for preparing them are disclosed. ##STR1## wherein R.sub.1 represents a linear or branched, alkyl or alkenyl group having a C.sub.1-36 carbon atom content, with or without the hydrogen atom(s) being substituted with fluorine atom(s), or a phenyl group with substituted linear or branched alkyl group(s) having a C.sub.1-15 carbon atom content, R.sub.2 represents an alkylene group having a C.sub.2-3 carbon atom content, R.sub.3 and R.sub.4 independently denote a hydrogen atom or an alkyl group having a C.sub.1-3 carbon atom content, R.sub.5 and R.sub.6 independently denote a hydrogen atom, or an alkyl, alkenyl, or phenyl group with or without the hydrogen atom(s) being substituted with group(s) containing hetero atom(s), excepting for a mercapto group, R.sub.7 and R.sub.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: January 15, 1991
    Assignee: Kao Corporation
    Inventors: Akira Matsunaga, Junya Wakatsuki, Nobutaka Horinishi, Takashi Imamura, Tomihiro Kurosaki
  • Patent number: 4845239
    Abstract: A novel phosphoric ester of the following formula (I) ##STR1## is prepared by reacting a phosphoric ester of the following formula (II) ##STR2## with a basic compound. By reacting the phosphoric ester (I) with various types of amine compounds or other acidic hydrogen-bearing compounds, various phospholipid analogue compounds or phosphoric esters can be derived.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: July 4, 1989
    Assignee: Kao Corporation
    Inventors: Junya Wakatsuki, Tohru Katoh, Akira Matsunaga, Tomihiro Kurosaki
  • Patent number: 4747137
    Abstract: A speech scrambler is disclosed, in which a frequency spectrum obtained by an orthogonal transform of a time domain signal is divided into a plurality of blocks in the frequency domain. One of the blocks which has energy less than a predetermined value is adaptively replaced by a dummy spectrum. The resulting spectrum is rearranged in accordance with a predetermined rule. The frequency spectrum is subjected to an inverse othogonal transform to obtain a time domain signal for transmission. The orthogonal transform is fast Fourier transform or fast Hadamard transform.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: May 24, 1988
    Assignee: Kokusai Denshin Denwa Kabushiki Kaisha
    Inventor: Akira Matsunaga
  • Patent number: 4430664
    Abstract: A glass-moulded type semiconductor device comprising semiconductor arrangement composed of at least one semiconductor pellet having at least one P-N junction, edges of which are exposed to peripheral surfaces of the semiconductor pellet, a pair of electrodes secured to opposite ends of the semiconductor arrangement through a brazing material, a first mould glass layer secured to the entire circumferential surface of the semiconductor arrangement and extending to the surfaces of the electrodes for passivating the P-N junction of the semiconductor arrangement, and a second mould glass in the form of at least one layer secured to the surface of said first mould glass layer.
    Type: Grant
    Filed: September 16, 1980
    Date of Patent: February 7, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Akira Matsunaga, Keiichi Morita
  • Patent number: 4363678
    Abstract: An explosive having a relatively small amount of powdered ferrite magnet dispersed therethrough, each magnet particle coated with a resin coating which is stable for the explosive material on the entire outer surface thereof. The resultant explosive is readily detected by a magnetic detector and is stable for a long time storage. As the resin coating, methyl methacrylate resin, styrene resin, acrylonitril resin, butadiene resin, vinyl acetate resin, acrylic acid resin, methylacrylate resin and/or the other vinyl resin is used.The resin coating is colored to color the explosives so that explosives may be distinctly visible, readily detected and identified.
    Type: Grant
    Filed: December 17, 1980
    Date of Patent: December 14, 1982
    Assignee: Tohoku Metal Industries
    Inventors: Naozumi Nishimura, Akira Matsunaga, Yasuo Ishii
  • Patent number: 4148056
    Abstract: A glass-encapsulated semiconductor device characterized in that a rectifier unit comprises a lamination of electrically series-connected and mechanically bonded semiconductor pellets and an electric-conductive spacer, and a pair of electrodes with external lead wires which are electrically connected and mechanically bonded with said lamination by means of soldering materials, the peripheral surface of the rectifier unit is covered with a protective glass layer over the entire length from one of the electrodes to the other, said conductive spacer having such a thickness that the thermal expansion coefficient of said spacer may be equal to the average thermal expansion coefficient of a virtual laminated column of said semiconductor pellets alone.
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: April 3, 1979
    Assignee: Hitachi, Ltd.
    Inventors: Akira Matsunaga, Kensuke Suzuki