Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6903510 | Arc tube having compressive stress and method for manufacture of an arc tube | Shinichi Irisawa, Akihiro Nagata, Hiroshi Goto | 2005-06-07 |
| 6891332 | Arc tube capable of preventing occurrence of leak due to cracks and manufacturing method therefore | Shinichi Irisawa | 2005-05-10 |
| 6707239 | Arc tube including step-down plane portions in pinch seal area | Akihiro Nagata, Hiroshi Goto, Shinichi Irisawa | 2004-03-16 |
| 6672923 | Method of manufacturing arc tube | Nobuo Ohkawai, Akihiro Nagata, Shinichi Irisawa | 2004-01-06 |
| 6653785 | Arc tube with pinch seal and dimensional relationship and method for forming the same | Michio Takagaki, Masaya Shido, Yukihiro Kobayakawa, Masayuki Umehara, Nobuyuki Kasuya +1 more | 2003-11-25 |
| 6580200 | Discharge lamp and manufacturing method thereof | Takeshi Fukuyo, Shinichi Irisawa | 2003-06-17 |
| 6547619 | ARC tube for discharge lamp unit and method of manufacturing same | Nobuo Ohkawai, Shinichi Irisawa, Masakazu Nagasawa | 2003-04-15 |
| 6456008 | Metal Halide lamp having improved shunting characteristics | Takeshi Fukuyo, Shinichi Irisawa | 2002-09-24 |
| 6452334 | Arc tube with residual-compressive-stress layer for discharge lamp unit and method of manufacturing same | Nobuo Ohkawai, Shinichi Irisawa | 2002-09-17 |
| 6411037 | Arc tube for discharge lamp device and method of manufacturing the same | Nobuo Ohkawai, Takeshi Fukuyo, Shinichi Irisawa | 2002-06-25 |
| 6354900 | Arc tube and fabricating method thereof | Takeshi Fukuyo, Nobuo Ohkawai, Shinichi Irisawa | 2002-03-12 |
| 6294861 | Electric discharge lamp apparatus | Kunimasa Mochiduki, Masato Harazaki, Yasuyoshi Numajiri, Takeshi Fukuyo, Shinichi Irisawa | 2001-09-25 |
| 6274973 | Electric discharge lamp apparatus with insulating plug | Kunimasa Mochiduki, Masato Harazaki, Yasuyoshi Numajiri, Takeshi Fukuyo, Shinichi Irisawa | 2001-08-14 |
| 6239539 | Electric discharge lamp apparatus and insulating plug therefor having a particular front portion | Kunimasa Mochiduki, Masato Harazaki, Yasuyoshi Numajiri, Takeshi Fukuyo, Shinichi Irisawa | 2001-05-29 |
| 5962976 | Molybdenum foils with yttrium oxide and recrystallization grains no more than 50 microns within the pinch seals of a metallic halide lamp | Shinichi Irisawa, Takeshi Fukuyo, Nobuo Ohkawai | 1999-10-05 |