Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5600701 | X-ray imaging system and method therefor | Rika Baba, Yoichi Onodera, Keiji Umetani, Hisatake Yokouchi, Shigekazu Hara +2 more | 1997-02-04 |
| 5598453 | Method for X-ray fluoroscopy or radiography, and X-ray apparatus | Rika Baba, Kensuke Sekihara, Hironori Ueki, Keiji Umetani | 1997-01-28 |
| 5528655 | Method and apparatus for producing radiologic three-dimensional image | Keiji Umetani, Hisatake Yokouchi | 1996-06-18 |
| 5526442 | X-ray radiography method and system | Rika Baba, Hisatake Yokouchi, Keiji Umetani, Yoichi Onodera | 1996-06-11 |
| 5485500 | Digital x-ray imaging system and method | Rika Baba, Hisatake Yokouchi, Yoichi Onodera, Keiji Umetani, Masayuki Tsuneoka | 1996-01-16 |
| 5402463 | Apparatus and method for radiation imaging | Keiji Umetani, Yoichi Onodera, Hisatake Yokouchi | 1995-03-28 |
| 5353325 | X-ray fluorograph and radiograph apparatus for obtaining X-ray image having high X-ray latitude | Hisatake Yokouchi, Keiji Umetani, Yoichi Onodera | 1994-10-04 |
| 5059794 | Radiation imaging sensor | Tetsuhiko Takahashi, Kenichi Okajima | 1991-10-22 |
| 4945552 | Imaging system for obtaining X-ray energy subtraction images | Keiji Umetani, Yoshio Suzuki | 1990-07-31 |
| 4890310 | Spectral type radiation imaging system | Keiji Umetani, Ryuichi Suzuki, Hisatake Yokouchi | 1989-12-26 |
| 4835308 | Process for producing trimellitic acid | Yasuzo Sakakibara, Kouji Tomita | 1989-05-30 |
| 4575868 | Positron computed tomograph device | Kenichi Okajima, Katsumi Takami | 1986-03-11 |
| 4212676 | Compositions for solid writing materials and writing implements | — | 1980-07-15 |