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: 20160115587
    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: Application
    Filed: December 27, 2013
    Publication date: April 28, 2016
    Inventors: Kazuharu SUZUKI, Masayuki SAITO, Ryosuke HARADA, Shunichi NABEYA, Satoshi MIYAZAKI
  • Publication number: 20150030772
    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: Application
    Filed: October 12, 2012
    Publication date: January 29, 2015
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Masayuki Saito, Kazuharu Suzuki, Toshiyuki Shigetomi, Shunichi Nabeya
  • Patent number: 8920875
    Abstract: To provide a ruthenium compound suitable for a chemical vapor deposition method (CVD method). A liquid cyclooctatetraenetricarbonyl ruthenium complex represented by the following Formula (1) is obtained by irradiating a solution mixture of dodecacarbonyl triruthenium and a cyclooctatetraene with light. A satisfactory ruthenium film or ruthenium oxide film can be easily obtained by a chemical vapor deposition method using the complex as a raw material.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: December 30, 2014
    Assignee: Tanaka Kikinzoku Kogyo K.K.
    Inventors: Kazuharu Suzuki, Masayuki Saito
  • Patent number: 8911827
    Abstract: A chemical deposition method for producing a platinum thin film or a platinum compound thin film by chemical vapor deposition of an organoplatinum compound is represented by the following formula, which includes a divalent platinum atom, and hexadiene or a hexadiene derivative and alkyl anions coordinated to the divalent platinum atom. In the following formula, R1 and R2 are each an alkyl group, and may be different from each other. R3 and R4 are each a hydrogen atom or an alkyl group, and may be different from each other. The organoplatinum compound is satisfactory in stability and generates no toxic substance in film formation, and hence is satisfactory in handleability and excellent in practicability. The organoplatinum compound has a high vapor pressure, enables the film formation at a low temperature, and is useful as a CVD raw material easily forming a film on a spatial structure.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: December 16, 2014
    Assignee: Tanka Kikinzoku Kogyo K.K.
    Inventors: Kazuharu Suzuki, Shunichi Nabeya, Masayuki Saito
  • Patent number: 8642796
    Abstract: An object of the present invention is to provide an organoruthenium compound which has good film formation characteristics as an organoruthenium compound for chemical deposition, has a high vapor pressure, and can easily form a film even when hydrogen is used as a reactant gas. The present invention relates to an organoruthenium compound, dicarbonyl-bis(5-methyl-2,4-hexanediketonato)ruthenium (II) which can have isomers 1 to 3, wherein the content of the isomer 2 is 30% by mass or more, the content of the isomer 3 is 30% by mass or less, and the balance is the isomer 1.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: February 4, 2014
    Assignee: Tanaka Kikinzoku Kogyo K. K.
    Inventors: Masayuki Saito, Kazuharu Suzuki, Shunichi Nabeya
  • Publication number: 20130344243
    Abstract: The present invention is an organoplatinum compound for producing a platinum thin film or a platinum compound thin film by chemical vapor deposition, wherein the organoplatinum compound is represented by the following formula, and includes a divalent platinum atom, and hexadiene or a hexadiene derivative and alkyl anions coordinated to the divalent platinum atom. In the following formula, R1 and R2 are each an alkyl group, and may be different from each other. R3 and R4 are each a hydrogen atom or an alkyl group, and may be different from each other. The organoplatinum compound is satisfactory in stability and generates no toxic substance in film formation, and hence is satisfactory in handleability and excellent in practicability. The organoplatinum compound has a high vapor pressure, enables the film formation at a low temperature, and is useful as a CVD raw material easily forming a film on a spatial structure.
    Type: Application
    Filed: April 16, 2012
    Publication date: December 26, 2013
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Kazuharu Suzuki, Shunichi Nabeya, Masayuki Saito
  • Publication number: 20110318488
    Abstract: An object of the present invention is to provide an organoruthenium compound which has good film formation characteristics as an organoruthenium compound for chemical deposition, has a high vapor pressure, and can easily form a film even when hydrogen is used as a reactant gas. The present invention relates to an organoruthenium compound, dicarbonyl-bis(5-methyl-2,4-hexanediketonato)ruthenium (II) which can have isomers 1 to 3, wherein the content of the isomer 2 is 30% by mass or more, the content of the isomer 3 is 30% by mass or less, and the balance is the isomer 1.
    Type: Application
    Filed: June 15, 2011
    Publication date: December 29, 2011
    Inventors: MASAYUKI SAITO, KAZUHARU SUZUKI, SHUNICHI NABEYA
  • Publication number: 20110287175
    Abstract: To provide a ruthenium compound suitable for a chemical vapor deposition method (CVD method). A liquid cyclooctatetraenetricarbonyl ruthenium complex represented by the following Formula (1) is obtained by irradiating a solution mixture of dodecacarbonyl triruthenium and a cyclooctatetraene with light. A satisfactory ruthenium film or ruthenium oxide film can be easily obtained by a chemical vapor deposition method using the complex as a raw material.
    Type: Application
    Filed: January 8, 2010
    Publication date: November 24, 2011
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Kazuharu Suzuki, Masayuki Saito
  • Patent number: 5266004
    Abstract: A blower having a base, a main body which has an air inlet opening and an air blowing opening and which is rotatably mounted on a base, a fan disposed in the main body to make air entering the main body through the air inlet opening flow out of the main body through the air blowing opening, a motor for rotating the fan, an automatic rotation mechanism for rotating the main body through 360.degree. or more relative to the base, and an automatic oscillation mechanism for changing over the normal-direction and reverse-direction rotations of the main body on the base in a predetermined angular range.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: November 30, 1993
    Assignees: Hitachi, Ltd., Hitachi Taga Technology Ltd.
    Inventors: Yasuo Tsumurai, Seiichi Kawauchi, Masato Saitoh, Shiyuji Abiko, Kazuharu Suzuki