Patents by Inventor Alexandr Alexandrovich Dunaev

Alexandr Alexandrovich Dunaev 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).

  • Photochromic monomers, photochromic polymers based on the same, photochromic recording media comprising the photochromic polymers, and 3D read/write optical memory comprising the recording media
    Patent number: 7452950
    Abstract: Photochromic monomers and methods for preparing these photochromic monomers, photochromic polymers based on these photochromic monomers and methods for preparing these photochromic polymers, as well as the use of these photochromic polymers in a polymer binder as a two-photon recording medium for an optical 3D memory and photoswitches of optical signals are disclosed. The materials exhibit thermally irreversible photochromic transformations and other properties enabling the use of the photochromic polymers in an optical two-photon read/write memory.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: November 18, 2008
    Assignees: Samsung Electronics Co., Ltd., Photochemistry Center of Russian Academy of Sciences
    Inventors: Alexandr Alexandrovich Dunaev, Mikhail Vladimisovich Alfimov, Valery Alexandrovich Barachevsky, Valery Alexandrovidh Vasnev, Igor Victorovich Zavarzin, Sergey Nikolaevich Ivanov, Mukhammed Lastanbievich Keshtov, Ajexel Ivanovich Kovalev, Mikhall Mikhallovich Krayushkin, Yury Alexandrovich Pyankov, Alexandr Lyovich Rusanov, Yury Petrovich Strokach, Vladimir Nikolaevich Yarovenko
  • Photochromic monomers, photochromic polymers based on the same, photochromic recording media comprising the photochromic polymers, and 3D read/write optical memory comprising the recording media
    Publication number: 20060079653
    Abstract: Photochromic monomers and methods for preparing these photochromic monomers, photochromic polymers based on these photochromic monomers and methods for preparing these photochromic polymers, as well as the use of these photochromic polymers in a polymer binder as a two-photon recording medium for an optical 3D memory and photoswitches of optical signals are disclosed. The materials exhibit thermally irreversible photochromic transformations and other properties enabling the use of the photochromic polymers in an optical two-photon read/write memory.
    Type: Application
    Filed: September 26, 2005
    Publication date: April 13, 2006
    Applicants: Samsung Electronics Co., Ltd., Photochemistry Center of Russian Academy of Sciences
    Inventors: Alexandr Alexandrovich Dunaev, Mikhail Alfimov, Valery Barachevsky, Valery Vasnev, Igor Zavarzin, Sergey Ivanov, Mukhammed Keshtov, Ajexel Kovalev, Mikhall Krayushkin, Yury Pyankov, Alexandr Rusanov, Yury Strokach, Vladimir Yarovenko