Patents by Inventor Hiroya Kitahata

Hiroya Kitahata 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: 7819081
    Abstract: In a plasma film forming apparatus, two first electrodes 51 connected to a power source 4 and two grounded second electrodes 52 are arranged in the order of the second electrode 52, the first electrode 51, the first electrode 51 and the second electrode 52. A first flow passage 50a formed between the central first electrodes 51 allows a raw material gas (first gas) for being formed into a film to pass therethrough. A plasma discharge space 50b of a second flow passage formed between the first and second electrodes 51, 52 on the both sides allows an excitable gas (second gas) to pass therethrough, which excitable gas is exited by plasma such that the raw material can be formed into a film, but that the excitable gas itself is merely excited but not formed into a film. Those gases are converged at a crossing part 20c between the first and second flow passages and blown off via a common blowoff passage 25a.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: October 26, 2010
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Shinichi Kawasaki, Sumio Nakatake, Hiroya Kitahata, Setsuo Nakajima, Yuji Eguchi, Junichiro Anzai, Yoshinori Nakano
  • Patent number: 7507678
    Abstract: Uniform oxynitride and nitride films can be formed by low-temperature and high-speed nitriding reaction not dependent on the nitriding time or nitriding temperature. A solid dielectric is provided on at least one of opposed surfaces of a pair of electrodes opposed to each other under a pressure of 300 (Torr) or higher, a nitrogen gas containing an oxide equal to or lower than 0.2% is introduced into a space between the pair of opposed electrodes, an electric field is applied to the nitrogen gas, and the resulting N2 (2nd p.s.) or N2 (H.I.R) active species is brought into contact with an object to be processed to form an oxynitride film/nitride film on a surface of the object to be processed.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: March 24, 2009
    Assignee: Sekesui Chemical Co., Ltd.
    Inventors: Norifumi Fujimura, Ryoma Hayakawa, Hiroya Kitahata, Tsuyoshi Uehara, Takuya Yara
  • Publication number: 20080113519
    Abstract: Uniform oxynitride and nitride films can be formed by low-temperature and high-speed nitriding reaction not dependent on the nitriding time or nitriding temperature. A solid dielectric is provided on at least one of opposed surfaces of a pair of electrodes opposed to each other under a pressure of 300 (Torr) or higher, a nitrogen gas containing an oxide equal to or lower than 0.2% is introduced into a space between the pair of opposed electrodes, an electric field is applied to the nitrogen gas, and the resulting N2 (2nd p.s.) or N2 (H.I.R) active species is brought into contact with an object to be processed to form an oxynitride film/nitride film on a surface of the object to be processed.
    Type: Application
    Filed: December 19, 2007
    Publication date: May 15, 2008
    Inventors: Norifumi FUJIMURA, Ryoma Hayakawa, Hiroya Kitahata, Tsuyoshi Uehara, Takuya Yara
  • Publication number: 20070190801
    Abstract: Uniform oxynitride and nitride films can be formed by low-temperature and high-speed nitriding reaction not dependent on the nitriding time or nitriding temperature. A solid dielectric is provided on at least one of opposed surfaces of a pair of electrodes opposed to each other under a pressure of 300 (Torr) or higher, a nitrogen gas containing an oxide equal to or lower than 0.2% is introduced into a space between the pair of opposed electrodes, an electric field is applied to the nitrogen gas, and the resulting N2 (2nd p.s.) or N2 (H.I.R) active species is brought into contact with an object to be processed to form an oxynitride film/nitride film on a surface of the object to be processed.
    Type: Application
    Filed: March 25, 2005
    Publication date: August 16, 2007
    Inventors: Norifumi Fujimura, Ryoma Hayakawa, Hiroya Kitahata, Tsuyoshi Uehara, Takuya Yara
  • Publication number: 20060096539
    Abstract: In a plasma film forming apparatus, two first electrodes 51 connected to a power source 4 and two grounded second electrodes 52 are arranged in the order of the second electrode 52, the first electrode 51, the first electrode 51 and the second electrode 52. A first flow passage 50a formed between the central first electrodes 51 allows a raw material gas (first gas) for being formed into a film to pass therethrough. A plasma discharge space 50b of a second flow passage formed between the first and second electrodes 51, 52 on the both sides allows an excitable gas (second gas) to pass therethrough, which excitable gas is exited by plasma such that the raw material can be formed into a film, but that the excitable gas itself is merely excited but not formed into a film. Those gases are converged at a crossing part 20c between the first and second flow passages and blown off via a common blowoff passage 25a.
    Type: Application
    Filed: November 10, 2005
    Publication date: May 11, 2006
    Applicant: Sekisui Chemical Co., Ltd.
    Inventors: Shinichi Kawasaki, Sumio Nakatake, Hiroya Kitahata, Setsuo Nakajima, Yuji Eguchi, Junichiro Anzai, Yoshinori Nakano
  • Publication number: 20050016457
    Abstract: In a plasma film forming apparatus, two first electrodes 51 connected to a power source 4 and two grounded second electrodes 52 are arranged in the order of the second electrode 52, the first electrode 51, the first electrode 51 and the second electrode 52. A first flow passage 50a formed between the central first electrodes 51 allows a raw material gas (first gas) for being formed into a film to pass therethrough. A plasma discharge space 50b of a second flow passage formed between the first and second electrodes 51, 52 on the both sides allows an excitable gas (second gas) to pass therethrough, which excitable gas is exited by plasma such that the raw material can be formed into a film, but that the excitable gas itself is merely excited but not formed into a film. Those gases are converged at a crossing part 20c between the first and second flow passages and blown off via a common blowoff passage 25a.
    Type: Application
    Filed: October 7, 2003
    Publication date: January 27, 2005
    Inventors: Shinichi Kawasaki, Sumio Nakatake, Hiroya Kitahata, Setsuo Nakajima, Yuji Eguchi, Junichiro Anzai, Yoshinori Nakano