Issued Patents All Time
Showing 26–50 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6778228 | Projection-type display apparatus | Osamu Murakami, Akitaka Yajima | 2004-08-17 |
| 6746123 | Projector for preventing light loss | — | 2004-06-08 |
| 6667834 | Polarization luminaire and projection display | — | 2003-12-23 |
| RE38225 | Projection display and illuminating optical system for it | Toshiaki Hashizume | 2003-08-19 |
| 6529250 | Projector | Osamu Murakami, Akitaka Yajima | 2003-03-04 |
| 6513953 | Illumination system and projector | — | 2003-02-04 |
| 6497485 | Image projection system having uniform brightness | — | 2002-12-24 |
| 6471358 | Lighting device and projector | Toshiaki Hashizume | 2002-10-29 |
| 6445500 | Polarization luminaire and projection display | — | 2002-09-03 |
| 6441710 | Superconducting magnet apparatus and method for magnetizing superconductor | Yousuke Yanagi, Tetsuo Oka, Masaaki Yoshikawa | 2002-08-27 |
| 6411438 | Polarization luminaire and projection display | Kunio Yoneno | 2002-06-25 |
| 6406016 | Apparatus for dispensing thin flat articles | Takashi Ehara, Kenichi Tezuka, Kenji Saito | 2002-06-18 |
| 6394607 | Polarized light separation device, method of fabricating the same and projection display apparatus using the polarized light separation device | Toshiaki Hashizume, Akitaka Yajima | 2002-05-28 |
| 6348997 | Polarizing illuminating device and projector | — | 2002-02-19 |
| 6348996 | Polarization illumination device and projector | — | 2002-02-19 |
| 6344927 | Polarization luminaire and projection display | Kunio Yoneno, Junichi Nakamura, Tadaaki Nakayama | 2002-02-05 |
| 6341867 | Polarized light illumination device and projector | — | 2002-01-29 |
| 6309073 | Projector | Tadaaki Nakayama, Akitaka Yajima | 2001-10-30 |
| 6310723 | Polarization luminaire and projection display | Junichi Nakamura | 2001-10-30 |
| 6208451 | Polarization conversion system, illumination system, and projector | — | 2001-03-27 |
| 6204972 | Illumination optical system and projection-type display apparatus | — | 2001-03-20 |
| 6154320 | Polarizing conversion device, polarizing illuminations device, and display apparatus and projector using the devices | Toshiaki Hashizume | 2000-11-28 |
| 6147802 | Polarization luminaire and projection display | Kunio Yoneno, Junichi Nakamura, Tadaaki Nakayama | 2000-11-14 |
| 6132047 | Polarized light illumination device and projector | — | 2000-10-17 |
| 6120152 | Projection-type display apparatus | Tadaaki Nakayama, Akitaka Yajima | 2000-09-19 |