Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6396506 | Display operation method to change the number of images to be displayed and to independently change image direction and rotation of each image | Takeshi Hoshino, Yoshimasa Yokoyama, Takeshi Minemoto, Masahide Aoki, Kunio Umehara | 2002-05-28 |
| 6130786 | Projection lens and image display device | Hiroki Yoshikawa, Shigeru Mori, Naoyuki Ogura | 2000-10-10 |
| 5933280 | Projection lens and image display device | Hiroki Yoshikawa, Shigeru Mori, Naoyuki Ogura | 1999-08-03 |
| 5926153 | Multi-display apparatus | Tetsu Ohishi, Takahiko Yoshida, Hiroki Yoshikawa, Yutaka Matsuda, Hideo Tanide +2 more | 1999-07-20 |
| 5892492 | Plasma display panel with optical filters | Michitaka Ohsawa, Masaji Ishigaki, Norio Yatsuda, Takashi Sasaki | 1999-04-06 |
| 5659424 | Projecting lens and image display device | Hiroki Yoshikawa, Shigeru Mori, Naoyuki Ogura | 1997-08-19 |
| 5590943 | Rear projection type image display apparatus and transmission type screen used therein | Takahiko Yoshida, Koji Hirata, Kiyoshi Wada, Hiroki Yoshikawa | 1997-01-07 |
| 5513037 | Rear-projection screen and a rear projection image display employing the rear-projection screen | Takahiko Yoshida, Koji Hirata, Hiroki Yoshikawa, Masayuki Muranaka, Isao Yoshizaki | 1996-04-30 |
| 5485308 | Rear-projection type image display apparatus and rear-projection type screen | Koji Hirata, Takahiko Yoshida, Hiroki Yoshikawa, Masayuki Muranaka, Yutaka Matuda | 1996-01-16 |
| 5400114 | Rear-projection screen and a rear projection image display employing the rear-projection screen | Takahiko Yoshida, Koji Hirata, Hiroki Yoshikawa, Masayuki Muranaka, Isao Yoshizaki | 1995-03-21 |
| RE33784 | Magnetic recording/reproducing apparatus for recording onto or reproducing from a magnetic tape | Kenji Ogiro, Shouzou Yokoo, Hidekazu Takeda | 1991-12-31 |
| 4899235 | Magnetic tape loading mechanism and method | Kiyoshi Kano, Nobuyuki Kaku, Shinya Fujimori, Yoshihiro Fukagawa | 1990-02-06 |
| 4862300 | Tape guide moving mechanism for magnetic record reproducing apparatus | Nobuyuki Kaku, Kenji Ogiro, Takashi Sasaki, Kouhei Takita | 1989-08-29 |
| 4780783 | Locking device for a cover of magnetic tape cartridge | Kenji Ogiro, Nobuyuki Kaku, Shinichi Goto | 1988-10-25 |
| 4748521 | Magnetic recording/reproducing apparatus for recording onto or reproducing from a magnetic tape | Kenji Ogiro, Shouzou Yokoo, Hidekazu Takeda | 1988-05-31 |
| 4725910 | Rotary magnetic head assembly | Nobuyuki Kaku, Masanori Kochi, Hitoshi Takizawa | 1988-02-16 |