Patents by Inventor Yusei Maruyama

Yusei Maruyama 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).

  • Metal-encapsulated fullerene derivative compound of and method for making the derivative
    Patent number: 5717076
    Abstract: There are provided a derivative of a metal-encapsulated fullerene having application as a functional material, superconducting material, electronics material or pharmaceutical material, and a method of synthesizing this derivative. The derivative of a metal-encapsulated fullerene having the following structure is synthesized by adding a substituted diazomethane to a metal-encapsulated fullerene and denitrifying in a solvent.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: February 10, 1998
    Assignee: Doryokuro Kakunenryo Kaihatsu Jigyodan
    Inventors: Kazunori Yamamoto, Hideyuki Funasaka, Takeshi Takahashi, Toshiyasu Suzuki, Yusei Maruyama, Tatsuhisa Kato, Takeshi Akasaka
  • Bis(ethylenedithio)tetrathiafulvalene.cyanometalate complex
    Patent number: 5534638
    Abstract: This describes the following five novel organic substances: Bis (ethylenedithio) tetrathiafulvalene (henceforth to be called BEDT-TTF) compounded with cyanometalate anions in what is called Tetracyano Nickel acid Bis (Ethylenedithio) Tetrathiafulvalene salt.hydrate expressed by (BEDT-TTF).sub.4 [Ni(CN).sub.4 ].H.sub.2 O, Tetracyano Platinum acid Bis (Ethylenedithio) Tetrathiafulvalene salt.hydrate that is expressed by (BEDT-TTF).sub.4 [Pt(CN).sub.4 ].H.sub.2 O, Cyanide Palladium Bis (Ethylenedithio) Tetrathiafulvalene salt that is expressed by (BEDT-TTF)-[Pd(CN).sub.2 ], Tetracyano Palladium acid Bis (Ethylenedithio) Tetrathiafulvalene salt.hydrate that is expressed by (BEDT-TFF).sub.4 [Pd(CN).sub.4 ].H.sub.2 O and Tetracyano Palladium acid Bis (Ethylenedithio) Tetrathiafulvalene salt that is represented by (BEDT-TTF).sub.4 [Pd(CN).sub.4 ]. BEDT-TTF, acting as a common constituent in the crystals of all of the above substances, provides the properties of an insulator, a metal or a superconductor.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: July 9, 1996
    Assignee: International Superconductivity Technology Center
    Inventors: Hatsumi Mori, Izumi Hirabayashi, Shoji Tanaka, Takehiko Mori, Yusei Maruyama, Hiroo Inokuchi