Patents by Inventor Mikio Kaihara

Mikio Kaihara 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).

  • Dilution material, filter and accessory for measuring infrared spectra
    Patent number: 5057691
    Abstract: A dilution material for measuring infrared spectra comprising two or more kinds of the inorganic materials capable of transmitting infrared rays, of which the surface reflection loss is less than one third, and at least one of which the refractive index is different from another one by more than 0.1, and other means capable of improving infrared spectra of highly scattering samples such as coal powder and pitch powder.
    Type: Grant
    Filed: January 3, 1990
    Date of Patent: October 15, 1991
    Assignee: NKK Corporation
    Inventors: Mikio Kaihara, Hiroaki Mametsuka, Naoki Gunji, Hideo Iwata, Yohichi Gohshi