Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8471474 | Vehicle discharge bulb | Hiroyuki Takatsuka | 2013-06-25 |
| 8471473 | Arc tube for discharge lamp device | Takeshi Fukuyo, Akira Homma, Shinichi Irisawa | 2013-06-25 |
| 8174195 | Mercury-free arc tube for discharge lamp unit | Akira Homma, Takeshi Fukuyo | 2012-05-08 |
| 8148902 | Mercury-free arc tube for discharge lamp device and method for manufacturing the same | Akira Homma, Yoshihiro Mochizuki, Takeshi Fukuyo | 2012-04-03 |
| 7746000 | Discharge bulb | Akira Homma, Takeshi Fukuyo | 2010-06-29 |
| 7671536 | Arc tube for discharge lamp device | Takeshi Fukuyo, Akira Homma | 2010-03-02 |
| 7583028 | Mercury free arc tube for a discharge lamp | Takeshi Fukuyo, Shinichi Irisawa | 2009-09-01 |
| 7489083 | Mercury-free arc tube for discharge bulb | Akira Homma, Takeshi Fukuyo | 2009-02-10 |
| 7443100 | ARC tube discharge lamp with compression strain layer | Takeshi Fukuyo, Akira Homma, Shinichi Irisawa | 2008-10-28 |
| 7438620 | Arc tube of discharge lamp having electrode assemblies receiving vacuum heat treatment and method of manufacturing of arc tube | Akira Homma, Takeshi Fukuyo, Shinya Misonou | 2008-10-21 |
| 7314298 | Automotive headlight discharge bulb | Takeshi Fukuyo, Akira Homma, Shinichi Irisawa | 2008-01-01 |
| 7279841 | Arc tube for a discharge lamp | Takeshi Fukuyo, Shinichi Irisawa | 2007-10-09 |
| 7170230 | Mercury-free arc tube for a discharge lamp | Takeshi Fukuyo, Shinichi Irisawa | 2007-01-30 |
| 7098596 | Mercury-free arc tube for discharge lamp unit | Masaya Shido | 2006-08-29 |
| 7038385 | Mercury-free arc tube for discharge lamp unit | Shinichi Irisawa | 2006-05-02 |
| 6815894 | Mercury-free arc tube for discharge lamp unit | Shinichi Irisawa | 2004-11-09 |
| 6750612 | Mercury-free arc tube for discharge lamp unit | Masaya Shido, Shinichi Irisawa, Takeshi Fukuyo | 2004-06-15 |
| 6653785 | Arc tube with pinch seal and dimensional relationship and method for forming the same | Masaya Shido, Yukihiro Kobayakawa, Masayuki Umehara, Nobuyuki Kasuya, Takeshi Fukuyo +1 more | 2003-11-25 |