Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9030130 | High-pressure discharge lamp lighting device, high-pressure discharge lamp device using the same, projector using the high-pressure discharge lamp device, and lighting method for high-pressure discharge lamp | Masahiro Yamamoto | 2015-05-12 |
| 8979275 | Dual high-pressure discharge lamp projector with multi-waveform current generation for greater luminous flux change control and extended lamp life | Jun Sakaguchi | 2015-03-17 |
| 8952621 | High pressure discharge lamp lighting device, projector provided with the same, and high pressure discharge lamp lighting method | Hiroji Morimoto, Minoru Ozasa | 2015-02-10 |
| 8690360 | High pressure discharge lamp with start-up assist member, lamp unit, lamp system, and projector | Masahiro Yamamoto, Hiroki Ogawa, Kazuyuki Okano | 2014-04-08 |
| 8653753 | Projection-type image display apparatus, lighting apparatus and lighting method realizing an extended lifetime | Go Yamada | 2014-02-18 |
| 8513893 | High-pressure discharge lamp light-up device, high-pressure discharge lamp apparatus using same, projector using high-pressure discharge lamp apparatus, and light-up method for high-pressure discharge lamp | Hiroji Morimoto, Minoru Ozasa, Masahiro Yamamoto | 2013-08-20 |
| 8459802 | High-pressure discharge lamp lighting device with current control, high-pressure discharge lamp device using same, projector using said high-pressure discharge lamp device, and high-pressure discharge lamp lighting method with current control | Go Yamada, Masahiro Yamamoto, Minoru Ozasa | 2013-06-11 |
| 8450937 | High-pressure discharge lamp lighting device, high-pressure discharge lamp utilizing the same, projector utilizing said high-pressure discharge lamp, and high-pressure discharge lamp lighting method | Masahiro Yamamoto, Minoru Ozasa | 2013-05-28 |
| 8324828 | High-pressure discharge lamp lighting device, high pressure discharge lamp apparatus using this, projector using the high-pressure discharge lamp apparatus, and high-pressure discharge lamp lighting method | Masahiro Yamamoto, Minoru Ozasa, Hiroji Morimoto | 2012-12-04 |
| 8188672 | High-pressure discharge lamp system and projector using the same | Minoru Ozasa, Masahiro Yamamoto, Go Yamada | 2012-05-29 |
| 8125151 | High-pressure discharge lamp, lighting method and lighting device for high-pressure discharge lamp, high-pressure discharge lamp device, and lamp unit, image display device and headlight device | Masahiro Yamamoto, Minoru Ozasa, Tsuyoshi Ichibakase, Tomoyuki Seki, Takashi Tsutatani +1 more | 2012-02-28 |
| 8106585 | Manufacturing method of high-pressure discharge lamp, high-pressure discharge lamp, lamp unit using high-pressure discharge lamp, and image display apparatus using high-pressure discharge lamp | Jun Sakaguchi, Yoshitaka Kurimoto, Toshiyuki Shimizu, Shinichiro Hataoka, Kiyoshi Takahashi +4 more | 2012-01-31 |
| 8076852 | High-pressure discharge lamp, lighting method and lighting device for high-pressure discharge lamp, high-pressure discharge lamp device, and lamp unit, image display device and headlight device | Masahiro Yamamoto, Minoru Ozasa, Tsuyoshi Ichibakase, Tomoyuki Seki, Takashi Tsutatani +1 more | 2011-12-13 |
| 8063572 | High-pressure discharge lamp lighting device | Minoru Ozasa | 2011-11-22 |
| 7999481 | Lighting method for a high-pressure discharge lamp, lighting circuit for a high-pressure discharge lamp, high-pressure discharge lamp apparatus, and projector-type image display apparatus | Minoru Ozasa, Masahiro Yamamoto, Go Yamada | 2011-08-16 |
| 7880398 | High-pressure discharge lamp lighting device with alternating current frequency time periods | Minoru Ozasa | 2011-02-01 |
| 7855512 | Device for lighting a high-pressure discharge lamp by supplying alternating current | Minoru Ozasa, Masaru Ikeda, Masahiro Yamamoto | 2010-12-21 |
| 7744249 | High-pressure discharge lamp, lamp unit and image display device | Masahiro Yamamoto, Minoru Ozasa, Masaru Ikeda | 2010-06-29 |
| 7688003 | Method of lighting high pressure mercury lamp, lighting device for the same, lamp system and projection display unit | Go Yamada, Tsuyoshi Ichibakase | 2010-03-30 |
| 7667413 | High pressure discharge lamp operation method, operation device, light source device, and projection type image display device | Masaru Ikeda, Minoru Ozasa, Masahiro Yamamoto, Go Yamada | 2010-02-23 |
| 7530874 | Method for manufacturing high pressure discharge lamp, high pressure discharge lamp manufactured using the method, lamp unit, and image display device | Shinichiro Hataoka, Kiyoshi Takahashi, Jun Sakaguchi, Yoshitaka Kurimoto, Takashi Tsutatani +3 more | 2009-05-12 |
| 6984943 | Method and apparatus for lighting high pressure discharge lamp, high pressure discharge lamp apparatus, and projection-type image display apparatus | Minoru Ozasa, Masahiro Yamamoto | 2006-01-10 |