Patents by Inventor Kazuharu Suzuki

Kazuharu Suzuki 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).

  • Publication number: 20240060176
    Abstract: The present invention is drawn 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 an organoruthenium compound represented by the following formula 1, and further containing ?-diketone that is the same as a ligand of the organoruthenium compound. The raw material for chemical deposition of the present invention is inhibited in discoloration/precipitation even when heated at a high temperature, and enables to form a stable ruthenium thin film or ruthenium compound thin film. wherein substituents R1 and R2 are each hydrogen, or a linear or branched alkyl group.
    Type: Application
    Filed: February 22, 2022
    Publication date: February 22, 2024
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Kazuharu SUZUKI, Yuki MORI, Subhabrata DAS, Hirofumi NAKAGAWA, Shunichi NABEYA
  • 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
  • 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: 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
  • 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: 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: 20180119274
    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 (Mi) 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: May 9, 2016
    Publication date: May 3, 2018
    Inventors: Ryosuke HARADA, Toshiyuki SHIGETOMI, Shunichi NABEYA, Kazuharu SUZUKI, Akiko KUMAKURA, Tatsutaka AOYAMA, Takayuki SONE
  • Publication number: 20180079764
    Abstract: The present invention relates to a chemical deposition raw material including a heterogeneous polynuclear complex in which as ligands, at least a diimine and a carbonyl are coordinated to a first transition metal and a second transition metal as central metals, and the chemical deposition raw material is represented by the following formula. In the formula, the first transition metal (M1) and the second transition metal (M2) are mutually different. The number of diimines (L) is 1 or more and 2 or less, and to the diimine 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 R4. With the present chemical deposition raw material, a composite metal thin film or a composite metal compound thin film containing a plurality of metals can be formed from a single raw material.
    Type: Application
    Filed: May 9, 2016
    Publication date: March 22, 2018
    Inventors: Ryosuke HARADA, Toshiyuki SHIGETOMI, Shunichi NABEYA, Kazuharu SUZUKI, Akiko KUMAKURA, Tatsutaka AOYAMA, Takayuki SONE
  • Publication number: 20180072765
    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: Application
    Filed: May 9, 2016
    Publication date: March 15, 2018
    Inventors: Ryosuke HARADA, Toshiyuki SHIGETOMI, Kazuharu SUZUKI, Shunichi NABEYA, Akiko KUMAKURA, Tatsutaka AOYAMA, Takayuki SONE
  • Publication number: 20180066357
    Abstract: The present invention relates to a raw material for chemical deposition in a formula shown below and including an organoplatinum compound in which an alkenyl amine and an alkyl anion are coordinated to divalent platinum. 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 raw material has high vapor pressure enough to make possible the manufacturing of a platinum thin film at low temperature and also has moderate thermal stability.
    Type: Application
    Filed: May 9, 2016
    Publication date: March 8, 2018
    Inventors: Ryosuke HARADA, Toshiyuki SHIGETOMI, Kazuharu SUZUKI, Shunichi NABEYA, Akiko KUMAKURA, Rumi KOBAYASHI, Takayuki SONE
  • Patent number: 9805936
    Abstract: A method for producing a nickel thin film on a Si substrate by a chemical vapor deposition method, in which the nickel thin film is formed by use of a hydrocarbon-type nickel complex represented by a following formula as a raw material compound, which is a nickel complex in which a cyclopentadienyl group (Cp) or a derivative thereof and a chain or cyclic alkenyl group having 3 to 9 carbon atoms or a derivative thereof are coordinated to nickel and an element other than carbon and hydrogen is not contained in the structure, use of hydrogen as a reaction gas, and use of a film formation pressure of 1 to 150 torr and a film formation temperature of 80 to 250° C. as film formation conditions (In the formula, X represents a chain or cyclic alkenyl group having 3 to 9 carbon atoms or a derivative thereof. R1 to R5 which are substituent groups of the cyclopentadienyl group represent CnH2n+1 and n represents an integer of 0 to 6).
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: October 31, 2017
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Shunichi Nabeya, Ryosuke Harada, Kazuharu Suzuki, Takayuki Sone, Michihiro Yokoo
  • Publication number: 20170218509
    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: Application
    Filed: September 24, 2015
    Publication date: August 3, 2017
    Inventors: Ryosuke HARADA, Toshiyuki SHIGETOMI, Kazuharu SUZUKI, Shunichi NABEYA, Takayuki SONE, Akiko KUMAKURA
  • Patent number: 9447495
    Abstract: The present invention provides a chemical vapor deposition raw material, which has a low melting point, has heat stability such that no thermal decomposition occurs during vaporization, readily decomposes at low temperature during film-formation, and can stably form a nickel thin-film having fewer impurities. The present invention relates to a chemical vapor deposition raw material containing an organic nickel compound, in which a cyclopentadienyl group or a derivative thereof is coordinated to nickel, and a cycloalkenyl group having one allyl group or a derivative thereof is coordinated to the carbon skeleton of cycloalkyl. This raw material has a low melting point, proper heat stability and film-formation ability at low temperature. Further, due to a high vapor pressure, the raw material is suitable for a three-dimensional electrode material having a three-dimensional structure.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: September 20, 2016
    Assignee: Tanaka Kikinzoku Kogyo K.K.
    Inventors: Kazuharu Suzuki, Masayuki Saito, Ryosuke Harada, Shunichi Nabeya, Satoshi Miyazaki
  • Publication number: 20160233098
    Abstract: A method for producing a nickel thin film on a Si substrate by a chemical vapor deposition method, in which the nickel thin film is formed by use of a hydrocarbon-type nickel complex represented by a following formula as a raw material compound, which is a nickel complex in which a cyclopentadienyl group (Cp) or a derivative thereof and a chain or cyclic alkenyl group having 3 to 9 carbon atoms or a derivative thereof are coordinated to nickel and an element other than carbon and hydrogen is not contained in the structure, use of hydrogen as a reaction gas, and use of a film formation pressure of 1 to 150 torr and a film formation temperature of 80 to 250° C. as film formation conditions (In the formula, X represents a chain or cyclic alkenyl group having 3 to 9 carbon atoms or a derivative thereof. R1 to R5 which are substituent groups of the cyclopentadienyl group represent CnH2n+1 and n represents an integer of 0 to 6).
    Type: Application
    Filed: September 18, 2014
    Publication date: August 11, 2016
    Applicant: Tanaka Kikinzoku Kogyo K.K.
    Inventors: Shunichi NABEYA, Ryosuke HARADA, Kazuharu SUZUKI, Takayuki SONE, Michihiro YOKOO
  • Patent number: 9382616
    Abstract: A chemical vapor deposition raw material for producing a platinum thin film or a platinum compound thin film by a chemical vapor deposition method, wherein the chemical vapor deposition raw material includes an organoplatinum compound having cyclooctadiene and alkyl anions coordinated to divalent platinum, and the organoplatinum compound is represented by the following formula. Here, one in which R1 and R2 are any combination of propyl and methyl, propyl and ethyl, or ethyl and methyl is particularly preferred. wherein R1 and R2 are alkyl groups, and R1 and R2 are different; and a number of carbon atoms of R1 and R2 is 3 to 5 in total.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: July 5, 2016
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Masayuki Saito, Kazuharu Suzuki, Toshiyuki Shigetomi, Shunichi Nabeya