forming piezoelectric crystals

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and device for cutting single crystals, in addition to an ad...

    • Patent number 7,137,865
    • Issue date Nov 21, 2006
    • Freiberger Compound Materials GmbH
    • Ralf Hammer
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Dressing wheel and method of making same

    • Patent number 6,827,072
    • Issue date Dec 7, 2004
    • Wendt GmbH
    • Holger Schwämmle
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Holding strip for a semiconductor ingot

    • Patent number 6,390,889
    • Issue date May 21, 2002
    • Virginia Semiconductor
    • A. Dempsey McGregor
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method of cutting and separating a bent board into individual small...

    • Patent number 6,286,499
    • Issue date Sep 11, 2001
    • Disco Corporation
    • Masahiro Yoshii
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Process for working a preform made of an oxide single crystal, and...

    • Patent number 6,257,224
    • Issue date Jul 10, 2001
    • NGK Insulators, Ltd.
    • Takashi Yoshino
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Slicing machine employing an axial force to provide rigidity to a r...

    • Patent number 5,287,843
    • Issue date Feb 22, 1994
    • Tokyo Seimitsu Co., Ltd.
    • Ichiro Katayama
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Slicing machine and a slicing method by the same

    • Patent number 5,174,270
    • Issue date Dec 29, 1992
    • Tokyo Seimitsu Co., Ltd.
    • Ichiro Katayama
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Automatic single crystal ingot disconnector for single crystal pull...

    • Patent number 5,135,727
    • Issue date Aug 4, 1992
    • Shin-Etsu Handotai Co., Ltd.
    • Hiroyuki Ibe
    • C30 - CRYSTAL GROWTH
  • Information Patent Grant

    2923118

    • Patent number 2,923,118
    • Issue date Feb 2, 1960
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    2593811

    • Patent number 2,593,811
    • Issue date Apr 22, 1952
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2414574

    • Patent number 2,414,574
    • Issue date Jan 21, 1947
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2397620

    • Patent number 2,397,620
    • Issue date Apr 2, 1946
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2394622

    • Patent number 2,394,622
    • Issue date Feb 12, 1946
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2382257

    • Patent number 2,382,257
    • Issue date Aug 14, 1945
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2377072

    • Patent number 2,377,072
    • Issue date May 29, 1945
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    2326319

    • Patent number 2,326,319
    • Issue date Aug 10, 1943
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2323599

    • Patent number 2,323,599
    • Issue date Jul 6, 1943
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2240685

    • Patent number 2,240,685
    • Issue date May 6, 1941
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2218489

    • Patent number 2,218,489
    • Issue date Oct 15, 1940
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2151736

    • Patent number 2,151,736
    • Issue date Mar 28, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2112636

    • Patent number 2,112,636
    • Issue date Mar 29, 1938
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2023494

    • Patent number 2,023,494
    • Issue date Dec 10, 1935
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    1914370

    • Patent number 1,914,370
    • Issue date Jun 20, 1933
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    1869160

    • Patent number 1,869,160
    • Issue date Jul 26, 1932
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    1848893

    • Patent number 1,848,893
    • Issue date Mar 8, 1932
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    1414370

    • Patent number 1,414,370
    • Issue date May 2, 1922
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    970160

    • Patent number 970,160
    • Issue date Sep 13, 1910
    • G02 - OPTICS

Patents Applicationslast 30 patents