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Opaque

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  • CPC
  • Y10S353/04
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YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS Y10USPC classification Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS Y10S353/00Optics: image projectors

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Y10S353/04Opaque
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Overhead projector
    • Patent number 5,414,480
    • Issue date May 9, 1995
    • Fuji Photo Optical Co., Ltd.
    • Masaaki Morizumi
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Reflecting illumination projecting device
    • Patent number 5,381,197
    • Issue date Jan 10, 1995
    • Asahi Kogaku Kogyo Kabushiki Kaisha
    • Kazushi Yoshida
    • G02 - OPTICS
  • Information Patent Grant

    Overhead projector
    • Patent number 5,317,350
    • Issue date May 31, 1994
    • Fuji Photo Film Co., Ltd.
    • Masaaki Nomura
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Projection inspecting machine
    • Patent number 5,307,098
    • Issue date Apr 26, 1994
    • Kabushiki Kaisha Topcon
    • Yukio Okita
    • G02 - OPTICS
  • Information Patent Grant

    Reflecting illumination type projecting device
    • Patent number 5,293,188
    • Issue date Mar 8, 1994
    • Asahi Kogaku Kogyo Kabushiki Kaisha
    • Kazushi Yoshida
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Reflecting illumination projecting device
    • Patent number 5,231,433
    • Issue date Jul 27, 1993
    • Asahi Kogaku Kogyo Kabushiki Kaisha
    • Kazushi Yoshida
    • G02 - OPTICS
  • Information Patent Grant

    Display apparatus
    • Patent number 5,214,458
    • Issue date May 25, 1993
    • Matsubara Kenki Kogyo Kabushiki Kaisha
    • Hiromi Kanai
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Reflecting illumination type projecting device
    • Patent number 5,192,961
    • Issue date Mar 9, 1993
    • Asahi Kogaku Kogyo Kabushiki Kaisha
    • Kazushi Yoshida
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Reflective overhead projector with alternate light sources
    • Patent number 5,135,301
    • Issue date Aug 4, 1992
    • Minnesota Mining and Manufacturing Company
    • John F. Dreyer
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Episcopic projector
    • Patent number 5,033,842
    • Issue date Jul 23, 1991
    • Kam T. Tam
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Overhead projector
    • Patent number 5,017,002
    • Issue date May 21, 1991
    • Peter H. Grunwald
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Overhead projector with centerless Fresnel lens reflective stage
    • Patent number 4,986,651
    • Issue date Jan 22, 1991
    • Minnesota Mining and Manufacturing Company
    • Dennis F. Vanderwerf
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Opaque projector
    • Patent number 4,979,813
    • Issue date Dec 25, 1990
    • Plus Corporation
    • Ritsuo Koga
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Folding arm for overhead projector
    • Patent number 4,978,218
    • Issue date Dec 18, 1990
    • Minnesota Mining and Manufacturing Company
    • Robert S. Carpenter
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Educational apparatus
    • Patent number 4,973,254
    • Issue date Nov 27, 1990
    • Judy Bracconier
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Off axis fresnel reflector for liquid crystal display
    • Patent number 4,943,156
    • Issue date Jul 24, 1990
    • Minnesota Mining and Manufacturing Company
    • Dennis F. Vanderwetf
    • G02 - OPTICS
  • Information Patent Grant

    Foldable optical apparatus
    • Patent number 4,938,587
    • Issue date Jul 3, 1990
    • Fuji Photo Film Co., Ltd.
    • Kenta Namioka
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Opaque adapter for overhead projector
    • Patent number 4,930,886
    • Issue date Jun 5, 1990
    • Numa Corporation
    • Richard E. Williams
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Overhead projector
    • Patent number 4,829,327
    • Issue date May 9, 1989
    • Peter H. Grunwald
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Overhead projector
    • Patent number 4,735,500
    • Issue date Apr 5, 1988
    • Peter H. Grunwald
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Collapsible overhead projector
    • Patent number 4,696,557
    • Issue date Sep 29, 1987
    • Ricoh Company, Ltd.
    • Mitsuo Tomizuka
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Overhead projector
    • Patent number 4,652,101
    • Issue date Mar 24, 1987
    • Peter H. Grunwald
    • G02 - OPTICS
  • Information Patent Grant

    Overhead projector
    • Patent number 4,565,430
    • Issue date Jan 21, 1986
    • Peter H. Grunwald
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Reflecting type overhead projector with automatically variable safe...
    • Patent number 4,406,530
    • Issue date Sep 27, 1983
    • Riso Kagaku Corporation
    • Takanori Hasegawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3762809
    • Patent number 3,762,809
    • Issue date Oct 2, 1973
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3525566
    • Patent number 3,525,566
    • Issue date Aug 25, 1970
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3516733
    • Patent number 3,516,733
    • Issue date Jun 23, 1970
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3486817
    • Patent number 3,486,817
    • Issue date Dec 30, 1969
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3459475
    • Patent number 3,459,475
    • Issue date Aug 5, 1969
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3430375
    • Patent number 3,430,375
    • Issue date Mar 4, 1969
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS