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Cathode ray tube
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Patent number 4,933,597
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Issue date Jun 12, 1990
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Sony Corporation
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Takehiro Kakizaki
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H01 - BASIC ELECTRIC ELEMENTS
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Image pickup tube
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Patent number 4,713,588
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Issue date Dec 15, 1987
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Hitachi, Ltd.
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Shigehiko Takayama
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H01 - BASIC ELECTRIC ELEMENTS
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Cathode ray tube
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Patent number 4,707,634
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Issue date Nov 17, 1987
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Sony Corporation
-
Takehiro Kakizaki
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H01 - BASIC ELECTRIC ELEMENTS
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-
Image pick-up tube
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Patent number 4,658,182
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Issue date Apr 14, 1987
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Sony Corporation
-
Shoji Araki
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H01 - BASIC ELECTRIC ELEMENTS
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-
Cathode ray tube
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Patent number 4,651,050
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Issue date Mar 17, 1987
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Sony Corporation
-
Susumu Tagawa
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H01 - BASIC ELECTRIC ELEMENTS
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-
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3922580
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Patent number 3,922,580
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Issue date Nov 25, 1975
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H01 - BASIC ELECTRIC ELEMENTS
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3896339
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Patent number 3,896,339
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Issue date Jul 22, 1975
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G01 - MEASURING TESTING
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3890529
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Patent number 3,890,529
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Issue date Jun 17, 1975
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H01 - BASIC ELECTRIC ELEMENTS
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3794876
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Patent number 3,794,876
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Issue date Feb 26, 1974
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3774070
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Patent number 3,774,070
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Issue date Nov 20, 1973
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H01 - BASIC ELECTRIC ELEMENTS
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3731136
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Patent number 3,731,136
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Issue date May 1, 1973
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H01 - BASIC ELECTRIC ELEMENTS
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3721931
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Patent number 3,721,931
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Issue date Mar 20, 1973
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H01 - BASIC ELECTRIC ELEMENTS
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3423625
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Patent number 3,423,625
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Issue date Jan 21, 1969
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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2911563
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Patent number 2,911,563
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Issue date Nov 3, 1959
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H01 - BASIC ELECTRIC ELEMENTS
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2841641
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Patent number 2,841,641
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Issue date Jul 1, 1958
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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2587420
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Patent number 2,587,420
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Issue date Feb 26, 1952
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G01 - MEASURING TESTING
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2552357
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Patent number 2,552,357
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Issue date May 8, 1951
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G01 - MEASURING TESTING
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2212396
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Patent number 2,212,396
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Issue date Aug 20, 1940
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H01 - BASIC ELECTRIC ELEMENTS
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2197523
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Patent number 2,197,523
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Issue date Apr 16, 1940
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H01 - BASIC ELECTRIC ELEMENTS