Patents by Inventor Takehiro Matsuo

Takehiro Matsuo 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).

  • PROCESS FOR PRODUCING FERROMAGNETIC METAL PARTICLES AND MAGNETIC RECORDING MEDIUM
    Publication number: 20100035087
    Abstract: The present invention relates to ferromagnetic metal particles having an average major axis diameter (L) of 10 to 100 nm which satisfy a relationship between the average major axis diameter (L) and a particle SFD represented by the following formula: Particle SFD?0.0001 L2?0.0217 L+1.75; a process for producing the ferromagnetic metal particles; and a magnetic recording medium using the ferromagnetic metal particles.
    Type: Application
    Filed: August 5, 2009
    Publication date: February 11, 2010
    Applicant: TODA KOGYO CORPORATION
    Inventors: Hiroko Morii, Keisuke Iwasaki, Seiji Ishitani, Mineko Ohsugi, Shinji Horie, Toshiharu Harada, Takehiro Matsuo, Yosuke Yamamoto, Kazuyuki Hayashi