Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6672923 | Method of manufacturing arc tube | Yoshitaka Ohshima, Akihiro Nagata, Shinichi Irisawa | 2004-01-06 |
| 6547619 | ARC tube for discharge lamp unit and method of manufacturing same | Yoshitaka Ohshima, Shinichi Irisawa, Masakazu Nagasawa | 2003-04-15 |
| 6452334 | Arc tube with residual-compressive-stress layer for discharge lamp unit and method of manufacturing same | Yoshitaka Ohshima, Shinichi Irisawa | 2002-09-17 |
| 6411037 | Arc tube for discharge lamp device and method of manufacturing the same | Yoshitaka Ohshima, Takeshi Fukuyo, Shinichi Irisawa | 2002-06-25 |
| 6354900 | Arc tube and fabricating method thereof | Yoshitaka Ohshima, Takeshi Fukuyo, Shinichi Irisawa | 2002-03-12 |
| 5993279 | Discharge lamp arc tube and method of producing the same | Takeshi Fukuyo, Shinichi Irisawa | 1999-11-30 |
| 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, Yoshitaka Ohshima | 1999-10-05 |
| 5936349 | Arc tube having a pair of molybdenum foils, and method for its fabrication | Kunio Fukai, Masakazu Nagasawa | 1999-08-10 |
| 5877590 | Discharge lamp arc tube and method of producing the same | Takeshi Fukuyo, Shinichi Irisawa | 1999-03-02 |
| 5177397 | Discharge lamp assembly with insulating tubular member and metal band around pinch seal | Masakazu Nagasawa, Goichi Oda, Masaya Shidoh, Shinichi Irisawa, Yukio Wakimizu | 1993-01-05 |