Patents by Inventor Kenji Sumiyama

Kenji Sumiyama 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: 7638019
    Abstract: A semiconductor or nonconductor vapor is generated by sputtering targets 11U, 11D in a first sputtering chamber 10, while a metal vapor is generated by sputtering targets 21U, 21D in a second sputtering chamber 20. The semiconductor or nonconductor vapor and the metal vapor are aggregated to clusters during travelling through a cluster-growing tube 32 and injected as a cluster beam to a high-vacuum deposition chamber 30, so as to deposit composite clusters on a substrate 35. The produced composite clusters are useful in various fields due to high performance, e.g. high-sensitivity sensors, high-density magnetic recording media, nano-magnetic media for transportation of medicine, catalysts, permselective membranes, optical-magnet sensors and low-loss soft magnetic materials.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: December 29, 2009
    Assignee: Japan Science and Technology Agency
    Inventors: Takehiko Hihara, Kenji Sumiyama, Ryoji Katoh
  • Publication number: 20050173240
    Abstract: A semiconductor or nonconductor vapor is generated by sputtering targets 11U, 11D in a first sputtering chamber 10, while a metal vapor is generated by sputtering targets 21U, 21D in a second sputtering chamber 20. The semiconductor or nonconductor vapor and the metal vapor are aggregated to clusters during travelling through a cluster-growing tube 32 and injected as a cluster beam to a high-vacuum deposition chamber 30, so as to deposit composite clusters on a substrate 35. The produced composite clusters are useful in various fields due to high performance, e.g. high-sensitivity sensors, high-density magnetic recording media, nano-magnetic media for transportation of medicine, catalysts, permselective membranes, optical-magnet sensors and low-loss soft magnetic materials.
    Type: Application
    Filed: January 27, 2003
    Publication date: August 11, 2005
    Inventors: Takehiko Hihara, Kenji Sumiyama, Ryoji Katoh
  • Patent number: D359623
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: June 27, 1995
    Assignee: Sunstar Kabushiki Kaisha
    Inventors: Atsushi Kinoshita, Kenji Sumiyama, Kazumi Oishi