Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7112925 | Vehicle headlamp system and dimming-type vehicle headlamp | Ken Kato, Shigeyoshi Yotoriyama, Kiyotaka Fukawa, Masao Okawa | 2006-09-26 |
| 6294861 | Electric discharge lamp apparatus | Kunimasa Mochiduki, Masato Harazaki, Takeshi Fukuyo, Yoshitaka Ohshima, Shinichi Irisawa | 2001-09-25 |
| 6274973 | Electric discharge lamp apparatus with insulating plug | Kunimasa Mochiduki, Masato Harazaki, Takeshi Fukuyo, Yoshitaka Ohshima, Shinichi Irisawa | 2001-08-14 |
| 6239539 | Electric discharge lamp apparatus and insulating plug therefor having a particular front portion | Kunimasa Mochiduki, Masato Harazaki, Takeshi Fukuyo, Yoshitaka Ohshima, Shinichi Irisawa | 2001-05-29 |
| 5402037 | Arc tube having particular volume and gas pressure for luminous flux | Shinichi Irisawa, Kunimasa Mochiduki | 1995-03-28 |
| 5286227 | Arc tube and method for manufacturing the same | Shinichi Irisawa, Kunio Fukai, Masakazu Nagasawa | 1994-02-15 |
| 5220235 | Discharge lamp device | Yukio Wakimizu, Shinichi Irisawa, Masakazu Nagasawa, Yonemasa Yoshida | 1993-06-15 |
| 4879491 | Electric lamp assembly | Yasuo Hirozumi, Susumu Kanematsu, Mikio Watanabe, Mitsuhiro Okano | 1989-11-07 |