Patents by Inventor Claudio Dalmasso

Claudio Dalmasso 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).

  • Method and apparatus for correctably printing characters with sublimable ink
    Patent number: 4188139
    Abstract: A correctable print is obtained by using an easily sublimable ink. Said print is completely erased when heated at a temperature insufficient to cause the darkening of the paper, by means of a hot point, of hot air, or of radiant energy.
    Type: Grant
    Filed: May 6, 1977
    Date of Patent: February 12, 1980
    Assignee: Ing. C. Olivetti & C., S.p.A.
    Inventors: Arnaldo Pasini, Claudio Dalmasso, Riccardo Brescia, Roberto Bosio
  • Liquid crystal devices
    Patent number: 4033672
    Abstract: This invention relates to liquid crystal display devices. One aspect of the invention concerns the electrolytic growing of projections on one plate of the device so that the projections register with the tin-oxide segment array on the other plate; another aspect concerns utilizing similar projections as internally placed spacers. An insulative sheet is deposited over the segment array in order to filter D.C. components, according to a third aspect of the invention, and, according to a fourth aspect, a spacing technique is disclosed which utilizes alumina particles in a glass matrix as an edge spacer. Further, a light concentration technique, utilizing a one-way mirror and a prism or fiber optic assembly, is disclosed.
    Type: Grant
    Filed: September 18, 1975
    Date of Patent: July 5, 1977
    Assignee: Ing. C. Olivetti & C., S.p.A. Ufficio Brevetti
    Inventor: Claudio Dalmasso
  • Liquid crystal devices
    Patent number: 3938879
    Abstract: This invention relates to liquid crystal display devices. One aspect of the invention concerns the electrolytic growing of projections on one plate of the device so that the projections register with the tin-oxide segment array on the other plate; another aspect concerns utilizing similar projections as internally placed spacers. An insulative sheet is deposited over the segment array in order to filter D.C. components, according to a third aspect of the invention, and, according to a fourth aspect, a spacing technique is disclosed which utilizes alumina particles in a glass matrix as an edge spacer. Further, a light concentration technique, utilizing a one-way mirror and a prism or fiber optic assembly, is disclosed.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: February 17, 1976
    Assignee: Ing. C. Olivetti & C., S.p.A.
    Inventor: Claudio Dalmasso