Patents by Inventor Toshiyuki Shigetomi

Toshiyuki Shigetomi 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: 11434563
    Abstract: The present invention relates to a raw material for chemical deposition for producing a ruthenium thin film or a ruthenium compound thin film by a chemical deposition method, containing a ruthenium complex represented by the following Chemical Formula 1. In Chemical Formula 1, ligands L1 and L2 coordinated to ruthenium are represented by the following Chemical Formula 2. The raw material for chemical deposition according to the present invention can be formed into a high quality thin film even if a reaction gas containing an oxygen atom is not used. wherein R1 to R12, which are substituents of the ligands L1 and L2, are each independently any one of a hydrogen atom, and a linear or branched alkyl group having a carbon number of 1 or more and 4 or less.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: September 6, 2022
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke Harada, Teruhisa Iwai, Toshiyuki Shigetomi, Shigeyuki Ootake, Seung-Joon Lee
  • Publication number: 20220235455
    Abstract: A raw material for chemical deposition for producing a manganese thin film or a manganese compound thin film by chemical deposition method, including an organomanganese compound represented Chemical Formula 1 in which a cyclopentadienyl ligand and an isocyanide ligand are coordinated to manganese, which has basic characteristics as a raw material for chemical deposition and enables formation of a manganese thin film with a reducing gas such as hydrogen used as a reaction gas.
    Type: Application
    Filed: June 15, 2020
    Publication date: July 28, 2022
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke HARADA, Tomohiro TSUGAWA, Toshiyuki SHIGETOMI, Seung-Joon LEE, Ketan Baban KATKAR
  • Publication number: 20220018018
    Abstract: The present invention relates to a raw material for chemical deposition for producing a ruthenium thin film or a ruthenium compound thin film by a chemical deposition method, containing a ruthenium complex represented by the following Chemical Formula 1. In Chemical Formula 1, ligands L1 and L2 coordinated to ruthenium are represented by the following Chemical Formula 2. The raw material for chemical deposition according to the present invention can be formed into a high quality thin film even if a reaction gas containing an oxygen atom is not used. wherein R1 to R12, which are substituents of the ligands L1 and L2, are each independently any one of a hydrogen atom, and a linear or branched alkyl group having a carbon number of 1 or more and 4 or less.
    Type: Application
    Filed: December 2, 2019
    Publication date: January 20, 2022
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke HARADA, Teruhisa IWAI, Toshiyuki SHIGETOMI, Shigeyuki OOTAKE, Seung-Joon LEE
  • Patent number: 11149045
    Abstract: A raw material for vapor deposition for producing a platinum thin film or a platinum compound thin film by a vapor deposition method. The raw material for vapor deposition includes an organoplatinum compound represented by the following formula, in which a cyclopentene-amine ligand and an alkyl ligand are coordinated to divalent platinum. The organoplatinum compound of the present invention has moderate thermal stability and can respond flexibly to severe film formation conditions, including a wider film formation area, higher throughput, and the like. (In the formula, R1, R2, and R3 are each any one of a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an amino group, an imino group, a cyano group, and an isocyano group, each having 4 or less carbon atoms, and R4 and R5 are each an alkyl group having 1 or more and 3 or less carbon atoms.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: October 19, 2021
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke Harada, Shigeyuki Ootake, Toshiyuki Shigetomi, Kazuharu Suzuki
  • Patent number: 11084837
    Abstract: The present invention relates to a chemical deposition raw material for manufacturing an iridium thin film or an iridium compound thin film by a chemical deposition method, including an iridium complex in which cyclopropenyl or a derivative thereof and a carbonyl ligand are coordinated to iridium. The iridium complex that is applied in the present invention enables an iridium thin film to be manufactured even when a reducing gas such as hydrogen is applied. in which R1 to R3, which are substituents of the cyclopropenyl ligand, are each independently hydrogen, or a linear or branched alkyl group with a carbon number of 1 or more and 4 or less.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: August 10, 2021
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke Harada, Toshiyuki Shigetomi, Kazuharu Suzuki
  • Patent number: 10815260
    Abstract: The present invention relates to a chemical vapor deposition raw material for producing a ruthenium thin film or a ruthenium compound thin film by a chemical deposition method, the chemical vapor deposition raw material including a dinuclear ruthenium complex in which carbonyl and a nitrogen-containing organic ligand (L) are coordinated to metallically bonded two rutheniums, the dinuclear ruthenium complex being represented by the following formula (1): A raw material according to the present invention is capable of producing a high-purity ruthenium thin film, and has a low melting point and moderate thermal stability. Thus, the raw material according to the present invention is suitable for use in electrodes of various kinds of devices.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: October 27, 2020
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke Harada, Toshiyuki Shigetomi, Tasuku Ishizaka, Tatsutaka Aoyama
  • Publication number: 20200148713
    Abstract: A raw material for vapor deposition for producing a platinum thin film or a platinum compound thin film by a vapor deposition method. The raw material for vapor deposition includes an organoplatinum compound represented by the following formula, in which a cyclopentene-amine ligand and an alkyl ligand are coordinated to divalent platinum. The organoplatinum compound of the present invention has moderate thermal stability and can respond flexibly to severe film formation conditions, including a wider film formation area, higher throughput, and the like. (In the formula, R1, R2, and R3 are each any one of a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an amino group, an imino group, a cyano group, and an isocyano group, each having 4 or less carbon atoms, and R4 and R5 are each an alkyl group having 1 or more and 3 or less carbon atoms.
    Type: Application
    Filed: July 12, 2018
    Publication date: May 14, 2020
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke HARADA, Shigeyuki OOTAKE, Toshiyuki SHIGETOMI, Kazuharu SUZUKI
  • Patent number: 10533027
    Abstract: The present invention provides a method for producing a cyclometalated iridium complex by use of a non-chlorine iridium raw material. The method for producing a cyclometalated iridium complex includes producing a cyclometalated iridium complex by reacting a raw material including an iridium compound with an aromatic heterocyclic bidentate ligand capable of forming an iridium-carbon bond, the raw material being non-halogenated iridium having a conjugated base of a strong acid as a ligand. Here, the non-halogenated iridium is preferably one containing a conjugated base of a strong acid having a pKa of 3 or less as a ligand.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 14, 2020
    Assignees: TANAKA KIKINZOKU KOGYO K.K., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Hideo Konno, Junichi Taniuchi, Ryosuke Harada, Toshiyuki Shigetomi, Rumi Kobayashi, Yasushi Masahiro
  • Patent number: 10526698
    Abstract: The present invention relates to a chemical deposition raw material including a heterogeneous polynuclear complex in which a cyclopentadienyl and a carbonyl are coordinated to a first transition metal and a second transition metal as central metals, the chemical deposition raw material being represented by the following formula. In the following formula, the first transition metal (M1) and the second transition metal (M2) are mutually different. The number of cyclopentadienyls (L) is 1 or more and 2 or less, and to the cyclopentadienyl is coordinated one of a hydrogen atom and an alkyl group with a carbon number of 1 or more and 5 or less as each of substituents R1 to R5. With the chemical deposition raw material of the present invention, a composite metal thin film or a composite metal compound thin film containing plural metals can be formed from a single raw material.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: January 7, 2020
    Assignee: TANAKA KIKINZOKU K.K.
    Inventors: Ryosuke Harada, Toshiyuki Shigetomi, Shunichi Nabeya, Kazuharu Suzuki, Akiko Kumakura, Tatsutaka Aoyama, Takayuki Sone
  • Publication number: 20190367545
    Abstract: The present invention relates to a chemical deposition raw material for manufacturing an iridium thin film or an iridium compound thin film by a chemical deposition method, including an iridium complex in which cyclopropenyl or a derivative thereof and a carbonyl ligand are coordinated to iridium. The iridium complex that is applied in the present invention enables an iridium thin film to be manufactured even when a reducing gas such as hydrogen is applied. in which R1 to R3, which are substituents of the cyclopropenyl ligand, are each independently hydrogen, or a linear or branched alkyl group with a carbon number of 1 or more and 4 or less.
    Type: Application
    Filed: March 5, 2018
    Publication date: December 5, 2019
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke HARADA, Toshiyuki SHIGETOMI, Kazuharu SUZUKI
  • Patent number: 10465283
    Abstract: An organoplatinum compound with the following formula for use as a raw material in the chemical deposition of platinum compound thin films. In the formula, n is 1 or more and 5 or less. Each of substituents R1 to R5 on the alkenyl amine is a hydrogen atom, an alkyl group or the like and has a carbon number of 4 or less. Each of alkyl anions R6 and R7 is an alkyl group having a carbon number of 1 or more and 3 or less. The vapor pressure of the organoplatinum compound is high enough to allow for the manufacturing of a platinum thin film at low temperature. It also has moderate thermal stability.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: November 5, 2019
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke Harada, Toshiyuki Shigetomi, Kazuharu Suzuki, Shunichi Nabeya, Akiko Kumakura, Rumi Kobayashi, Takayuki Sone
  • Patent number: 10407450
    Abstract: A heterogeneous polynuclear complex for use as a raw material in the chemical deposition of composite metal or composite metal thin films with the below formula. In the formula, M1 and M2 are mutually different transition metals, x is an integer of 0 or more and 2 or less, y is in integer of 1 or more and 2 or less, z is an integer of 1 or more and 10 or less, R1 to R4 are each one of a hydrogen atom and an alkyl group with a carbon number of 1 or more and 5 or less, and R5 is a hydrogen atom, a carbonyl, an alkyl group with a carbon number of 1 or more and 7 or less, an allyl group or an allyl derivative. The heterogeneous polynuclear complex allows a composite metal thin film or a composite metal compound thin film containing a plurality of metals to be formed from a single raw material.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: September 10, 2019
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke Harada, Toshiyuki Shigetomi, Shunichi Nabeya, Kazuharu Suzuki, Akiko Kumakura, Tatsutaka Aoyama, Takayuki Sone
  • Publication number: 20190177837
    Abstract: The present invention relates to a chemical deposition raw material including a heterogeneous polynuclear complex in which a cyclopentadienyl and a carbonyl are coordinated to a first transition metal and a second transition metal as central metals, the chemical deposition raw material being represented by the following formula. In the following formula, the first transition metal (M1) and the second transition metal (M2) are mutually different. The number of cyclopentadienyls (L) is 1 or more and 2 or less, and to the cyclopentadienyl is coordinated one of a hydrogen atom and an alkyl group with a carbon number of 1 or more and 5 or less as each of substituents R1 to R5. With the chemical deposition raw material of the present invention, a composite metal thin film or a composite metal compound thin film containing plural metals can be formed from a single raw material.
    Type: Application
    Filed: February 15, 2019
    Publication date: June 13, 2019
    Inventors: Ryosuke HARADA, Toshiyuki SHIGETOMI, Shunichi NABEYA, Kazuharu SUZUKI, Akiko KUMAKURA, Tatsutaka AOYAMA, Takayuki SONE
  • Publication number: 20180362565
    Abstract: The present invention provides a method for producing a cyclometalated iridium complex by use of a non-chlorine iridium raw material. The method for producing a cyclometalated iridium complex includes producing a cyclometalated iridium complex by reacting a raw material including an iridium compound with an aromatic heterocyclic bidentate ligand capable of forming an iridium-carbon bond, the raw material being non-halogenated iridium having a conjugated base of a strong acid as a ligand. Here, the non-halogenated iridium is preferably one containing a conjugated base of a strong acid having a pKa of 3 or less as a ligand.
    Type: Application
    Filed: December 22, 2016
    Publication date: December 20, 2018
    Inventors: Hideo KONNO, Junichi TANIUCHI, Ryosuke HARADA, Toshiyuki SHIGETOMI, Rumi KOBAYASHI, Yasushi MASAHIRO
  • Patent number: 10131987
    Abstract: The invention provides a raw material for chemical deposition having properties required for a CVD compound, that is, which has a high vapor pressure, can be formed into a film at low temperatures (about 250° C. or less), and also has moderate thermal stability. The invention relates to a raw material for chemical deposition, for producing a ruthenium thin film or a ruthenium compound thin film by a chemical deposition method, the raw material for chemical deposition including an organoruthenium compound represented by the following formula, in which a cyclohexadienyl group or a derivative thereof and a pentadienyl group or a derivative thereof are coordinated to ruthenium: wherein the substituents R1 to R12 are each independently a hydrogen atom, a linear or cyclic hydrocarbon, an amine, an imine, an ether, a ketone, or an ester, and the substituents R1 to R12 each have 6 or less carbon atoms.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: November 20, 2018
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke Harada, Toshiyuki Shigetomi, Kazuharu Suzuki, Shunichi Nabeya, Takayuki Sone, Akiko Kumakura
  • Patent number: 10125158
    Abstract: A method for manufacturing tris(?-diketonato)iridium by reacting ?-diketone with an iridium compound, in which an activation treatment including (a) an alkali treatment and (b) an acid treatment described below is applied to the iridium compound to activate the iridium compound, and to subsequently react the ?-diketone, (a) an alkali treatment: a treatment of adding alkali to a solution of the iridium compound to raise pH of the solution to a more alkaline side than that before the alkali addition and to not less than 10, and (b) an acid treatment: a treatment of adding acid to the solution subjected to the alkali treatment to lower pH of the solution to a more acidic side than that before the acid addition and to make the pH difference between solutions before and after the acid addition be not less than 0.1 and not more than 10. The present invention allows manufacture of tris(?-diketonato)iridium utilizing a wide variety of ?-diketones.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: November 13, 2018
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Yasushi Masahiro, Toshiyuki Shigetomi, Junichi Taniuchi, Ryosuke Harada
  • Patent number: 10077282
    Abstract: The present invention relates to a raw material for chemical deposition shown in a formulae below and including an organoplatinum compound in which diimine containing two imines and an alkyl anion are coordinated to divalent platinum. In the formulae, each of substituents R1 to R4 on the diimine represents a hydrogen atom, an alkyl group or the like and has a carbon number of 5 or less. Each of alkyl anions R5 and R6 is an alkyl group having a carbon number of 1 or more and 3 or less. The raw material has high vapor pressure and low decomposition temperature, and thus it is possible to manufacture a platinum thin film at low temperature.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: September 18, 2018
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke Harada, Toshiyuki Shigetomi, Kazuharu Suzuki, Shunichi Nabeya, Akiko Kumakura, Tatsutaka Aoyama, Takayuki Sone
  • Publication number: 20180258526
    Abstract: The present invention relates to a chemical vapor deposition raw material for producing a ruthenium thin film or a ruthenium compound thin film by a chemical deposition method, including an organoruthenium compound in which two diazadiene ligands and two alkyl ligands are coordinated to ruthenium, the organoruthenium being represented by the following formula. The organoruthenium compound to be applied in the present invention can be used for low-temperature deposition, and capable of forming a ruthenium thin film or a ruthenium compound thin film without use of an oxygen gas.
    Type: Application
    Filed: September 9, 2016
    Publication date: September 13, 2018
    Inventors: Ryosuke HARADA, Toshiyuki SHIGETOMI, Tasuku ISHIZAKA, Tatsutaka AOYAMA
  • Patent number: 10053479
    Abstract: The present invention relates to a raw material for a cyclometalated iridium complex, and provides a technique that makes it possible to obtain a cyclometalated iridium complex in higher yield at a lower reaction temperature than using tris(2,4-pentanedionato)iridium(III). The present invention relates to a raw material for a cyclometalated iridium complex, including an organic iridium material for producing a cyclometalated iridium complex, the organic iridium material being a tris(?-diketonato)iridium(III), in which an asymmetric ?-diketone is coordinated to iridium.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: August 21, 2018
    Assignees: TANAKA KIKINZOKU KOGYO K.K., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Hideo Konno, Junichi Taniuchi, Ryosuke Harada, Toshiyuki Shigetomi, Yasushi Masahiro
  • Publication number: 20180201636
    Abstract: The present invention relates to a chemical vapor deposition raw material for producing a ruthenium thin film or a ruthenium compound thin film by a chemical deposition method, the chemical vapor deposition raw material including a dinuclear ruthenium complex in which carbonyl and a nitrogen-containing organic ligand (L) are coordinated to metallically bonded two rutheniums, the dinuclear ruthenium complex being represented by the following formula (1): A raw material according to the present invention is capable of producing a high-purity ruthenium thin film, and has a low melting point and moderate thermal stability. Thus, the raw material according to the present invention is suitable for use in electrodes of various kinds of devices.
    Type: Application
    Filed: August 23, 2016
    Publication date: July 19, 2018
    Inventors: Ryosuke HARADA, Toshiyuki SHIGETOMI, Tasuku ISHIZAKA, Tatsutaka AOYAMA