Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7176641 | Cathode ray tube | Toshifumi Komiya | 2007-02-13 |
| 7078851 | Cathode ray tube | Yukio Suzuki, Toshifumi Komiya | 2006-07-18 |
| 6724139 | Cathode ray tube having improved indirectly heated cathode | — | 2004-04-20 |
| 6624561 | Color cathode ray tube having an internal voltage-dividing resistor | Hisao Nakamura, Kenji Suzuki | 2003-09-23 |
| 6614147 | Cathode ray tube having an improved indirectly heated cathode structure | Toshifumi Komiya, Norio Iwamura | 2003-09-02 |
| 6552479 | Cathode ray tube having an improved heater | Toshifumi Komiya, Norio Iwamura | 2003-04-22 |
| 6531813 | Cathode ray tube having an improved cathode structure | Toshifumi Komiya | 2003-03-11 |
| 6515424 | Color cathode ray tube having an internal voltage-dividing resistor | Hisao Nakamura, Kenji Suzuki | 2003-02-04 |
| 6504293 | Cathode ray tube having an improved cathode | Toshifumi Komiya, Norio Iwamura | 2003-01-07 |
| 6492768 | Cathode ray tube having an improved indirectly heated cathode | Norio Iwamura, Terutoshi Ichihara | 2002-12-10 |
| 6366011 | ELECTRON GUN FOR CATHODE-RAY TUBE FOR IMAGE DISPLAY HAVING AN ELECTRODE WITH REDUCED ELECTRON BEAM PASSAGE HOLE AND A CATHODE WITH AN ELECTRON EMISSIVE LAYER MAINLY MADE OF AN OXIDE OF AN ALKALINE EARTH METAL AND CONTAINING AN OXIDE OF A RARE EARTH METAL | Toshifumi Komiya | 2002-04-02 |
| 6335590 | Cathode ray tube having an indirectly heated cathode provided with a heater having a structure which substantially prevents cracks in an insulating coating thereof | Norio Iwamura | 2002-01-01 |
| 6191528 | Cathode ray tube having an improved indirectly heated cathode | Norio Iwamura | 2001-02-20 |
| 6130499 | Cathode ray tube having an improved cathode structure | Toshifumi Komiya | 2000-10-10 |
| 6124667 | Electron gun for a cathode-ray tube for image display having an electrode with a reduced electron beam limiting hole and a cathode with an electron emissive layer mainly made of an oxide of an alkaline metal and containing an oxide of a rare earth metal | Toshifumi Komiya | 2000-09-26 |
| 5808404 | Electron tube including a cathode having an electron emissive material layer | Toshifumi Komiya | 1998-09-15 |
| 5216320 | Cathode for electron tube | Hiroshi Takanobu, Sadanori Taguchi | 1993-06-01 |
| 5102363 | Manufacturing method of indirectly heated cathode | — | 1992-04-07 |
| 5099170 | Cathode supporting structure for color cathode-ray tube | — | 1992-03-24 |
| 5038071 | Heater for indirectly-heated cathode | Terutoshi Ichihara, Toshio Kawashima | 1991-08-06 |
| 4886995 | Heater for indirectly-heated cathode | Hiroshi Takakura | 1989-12-12 |
| 4844942 | Method of producing dark heater | Terutoshi Ichihara | 1989-07-04 |
| 4745325 | Heater for indirect-heated cathode | — | 1988-05-17 |
| 4286189 | Color cathode ray tube with shadow mask having inwardly bent skirt portions | Akio Yamaguchi | 1981-08-25 |