Inventor · disambiguated record
Shoji Shirai
Also filed as: SHIRAI SHOJI
57 granted patents·8 pending applications·489 citations·filing 1981–2022
99Inventor score
Top patents by PatentIndex Score
65 records- 0191US4581560AElectron gun for color picture tubeHITACHI LTD·Filed 1982·Granted Apr 8, 1986·39 cites·12 claims
- 0285US4599534AElectron gun for color picture tubeHITACHI LTD·Filed 1984·Granted Jul 8, 1986·27 cites·17 claims
- 0379US5610481ACathode ray tube with low dynamic correction voltageHITACHI LTD·Filed 1994·Granted Mar 11, 1997·23 cites·12 claims
- 0478US5015910AElectron gun for color picture tubeHITACHI LTD·Filed 1989·Granted May 14, 1991·24 cites·12 claims
- 0577US4851741AElectron gun for color picture tubeHITACHI LTD·Filed 1988·Granted Jul 25, 1989·22 cites·11 claims
- 0672US5146133AElectron gun for color cathode ray tubeHITACHI LTD·Filed 1990·Granted Sep 8, 1992·24 cites·5 claims
- 0771US4461978AMethod of driving gas discharge light-emitting devicesHITACHI LTD·Filed 1982·Granted Jul 24, 1984·23 cites·10 claims
- 0870US6353282B1Color cathode ray tube having a low dynamic focusHITACHI LTD·Filed 2000·Granted Mar 5, 2002·6 cites·22 claims
- 0970US6329747B1Cathode ray tube having an overall length thereof shortenedHITACHI LTD·Filed 2000·Granted Dec 11, 2001·9 cites·8 claims
- 1069US5414323AIn-line type electron gun assembly including electrode units having electron beam passage holes of different sizes for forming an electrostatic lensHITACHI LTD·Filed 1992·Granted May 9, 1995·21 cites·16 claims
- 1167US6583547B1Cathode ray tube with UPF type electron gun having particular electrode structure and spacingHITACHI LTD·Filed 2000·Granted Jun 24, 2003·7 cites·29 claims
- 1267US6445116B1Color cathode ray tube having an improved electron gunHITACHI LTD·Filed 2000·Granted Sep 3, 2002·5 cites·4 claims
- 1367US5608284AColor cathode ray tube having a low dynamic focus voltageHITACHI LTD·Filed 1995·Granted Mar 4, 1997·14 cites·9 claims
- 1466US6633142B1Cathode ray tube with low dynamic correction voltageHITACHI LTD·Filed 2001·Granted Oct 14, 2003·4 cites·10 claims
- 1565US6031346ACathode ray tube with low dynamic correction voltageHITACHI LTD·Filed 1998·Granted Feb 29, 2000·12 cites·30 claims
- 1664US5828191ACathode ray tube with low dynamic correction voltageHITACHI LTD·Filed 1997·Granted Oct 27, 1998·12 cites·16 claims
- 1764US5739631AColor cathode ray tube having a low dynamic focus voltageHITACHI LTD·Filed 1997·Granted Apr 14, 1998·12 cites·17 claims
- 1863US4833364AElectron gun for color picture tubes having uniquely formed lens aperturesHITACHI LTD·Filed 1985·Granted May 23, 1989·13 cites·16 claims
- 1963US4833365AElectron gun structure for converging electron beamsHITACHI LTD·Filed 1987·Granted May 23, 1989·12 cites·15 claims
- 2062US6255788B1Cathode ray tube with low dynamic correction voltageHITACHI LTD·Filed 2000·Granted Jul 3, 2001·3 cites·27 claims
- 2161US6624562B2Color cathode ray tube having an improved electron gunHITACHI LTD·Filed 2002·Granted Sep 23, 2003·3 cites·7 claims
- 2261US6507143B2Cathode ray tube including an electron gun having specific relation between axial length of focus electrode and lens-screen distanceHITACHI LTD·Filed 2001·Granted Jan 14, 2003·4 cites·9 claims
- 2361US6339300B2Color cathode ray tube with a reduced dynamic focus voltage for an electrostatic quadrupole lens thereofHITACHI LTD·Filed 2001·Granted Jan 15, 2002·4 cites·18 claims
- 2458US6919675B2Color cathode ray tubeHITACHI LTD·Filed 2003·Granted Jul 19, 2005·3 cites·9 claims
- 2558US6025674AColor cathode ray tube having a low dynamic focus voltageHITACHI LTD·Filed 1998·Granted Feb 15, 2000·9 cites·23 claims
- 2658US5466983ACathode ray tube with improved resolutionHITACHI LTD·Filed 1994·Granted Nov 14, 1995·14 cites·24 claims
- 2756US6847159B2Projection tube having different neck diametersHITACHI LTD·Filed 2001·Granted Jan 25, 2005·3 cites·19 claims
- 2856US5932958AColor cathode ray tube having beam passageways with barrel-like segmentHITACHI LTD·Filed 1997·Granted Aug 3, 1999·12 cites·33 claims
- 2956US5739630AColor cathode ray tubeHITACHI LTD·Filed 1995·Granted Apr 14, 1998·8 cites·23 claims
- 3056US5625252AMain lens structure for a color cathode ray tubeHITACHI LTD·Filed 1995·Granted Apr 29, 1997·12 cites·9 claims
- 3155US2025341047A1Bottom part cloth piece and fabric product using sameBUILMATEL CO LTD·Filed 2022·Application pending·0 cites
- 3253US6448704B1Color cathode ray tube having a small neck diameterHITACHI LTD·Filed 2000·Granted Sep 10, 2002·1 cites·25 claims
- 3353US6313576B1Color cathode ray tubeHITACHI LTD·Filed 2000·Granted Nov 6, 2001·1 cites·24 claims
- 3453US6051919AColor cathode ray tube with electrostatic quadrupole lensHITACHI LTD·Filed 1998·Granted Apr 18, 2000·7 cites·7 claims
- 3553US5909080AColor cathode ray tube having a small neck diameterHITACHI LTD·Filed 1998·Granted Jun 1, 1999·7 cites·10 claims
- 3651US6225765B1Color cathode ray tube with a reduced dynamic focus voltage for an electrostatic quadrupole lens thereofHITACHI LTD·Filed 1999·Granted May 1, 2001·8 cites·16 claims
- 3750US6472808B1Color cathode ray tube having electrostatic quadrupole lensesHITACHI LTD·Filed 1999·Granted Oct 29, 2002·10 cites·20 claims
- 3850US6437498B2Wide-angle deflection color cathode ray tube with a reduced dynamic focus voltageHITACHI LTD·Filed 2001·Granted Aug 20, 2002·1 cites·8 claims
- 3949US6304026B1Wide-angle deflection color cathode ray tube with a reduced dynamic focus voltageHITACHI LTD·Filed 1999·Granted Oct 16, 2001·7 cites·12 claims
- 4048US2008048551A1Image display deviceKIJIMA YUUICHI·Filed 2007·Application pending·0 cites
- 4148US2007035229A1Light emitting display deviceMIKAMI YOSHIRO·Filed 2006·Application pending·0 cites
- 4247US6133683AColor cathode ray tube having an internal voltage dividerHITACHI LTD·Filed 1998·Granted Oct 17, 2000·8 cites·8 claims
- 4347US5710480AColor cathode ray tube having a small neck diameterHITACHI LTD·Filed 1995·Granted Jan 20, 1998·5 cites·12 claims
- 4447US5606216AColor cathode-ray tube with reduced moireHITACHI LTD·Filed 1995·Granted Feb 25, 1997·9 cites·6 claims
- 4546US5942844AColor cathode ray tube having a small neck diameterHITACHI LTD·Filed 1997·Granted Aug 24, 1999·7 cites·3 claims
- 4645USD1068218SHatBUILMATEL CO LTD·Filed 2022·Granted Apr 1, 2025·0 cites·1 claims
- 4744US2008315748A1Display DeviceKITADA TAKAAKI·Filed 2008·Application pending·0 cites
- 4844US2003006688A1Color cathode ray tubeFiled 2002·Application pending·0 cites
- 4943US6741020B2Cathode ray, tube including an electron gun having specific relation of axial length of focus electrode and focus electrode-screen distanceHITACHI LTD·Filed 2003·Granted May 25, 2004·0 cites·9 claims
- 5043US6657372B2Color cathode ray tubeHITACHI LTD·Filed 2001·Granted Dec 2, 2003·0 cites·18 claims
Showing the top 50 of 65 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →