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Masafumi Nagaoka Patents |
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Inventor: Nagaoka; Masafumi
Address: Mobara, JP
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 6400105 |
Color cathode-ray tube having electrostatic quadrupole lens exhibiting different intensities for |
June 4, 2002 |
| A focus electrode is constituted by a first type of focus electrode group to which a first focus voltage is applied, and a second type of focus electrode group to which a second focus voltage is applied. Between the first type of focus electrode group and the second type of focus electro |
| 6396221 |
Color cathode-ray tube |
May 28, 2002 |
| A color cathode-ray tube including a main lens section comprising an anode to which an anode voltage is applied, and a focus electrode. The focus electrode has first type of focus electrode group to which a first focus voltage is applied, and a second type of focus electrode group to whi |
| 6294866 |
Color cathode ray tube having a low-distortion electrostatic quadrupole lens with a plurality of |
September 25, 2001 |
| A color cathode ray tube includes a phosphor screen, an electron beam generating section for generating three in-line electron beams, a focus electrode and an anode. The focus electrode includes a first focus and second focus sub-electrodes on this order from the cathode structure. The |
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