Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6051352 | Carrier for developing electrostatic image, developer and developing method | Ryuji Kitani, Tatsuya Nagase, Meizo Shirose | 2000-04-18 |
| 5932388 | Carrier for developing electrostatic image, developer and developing method | Meizo Shirose, Tatsuya Nagase, Ryuji Kitani | 1999-08-03 |
| 5733692 | Toner kit for electrophotography | Tatsuya Nagase, Ryuji Kitani, Meizo Shirose | 1998-03-31 |
| 5376488 | Carrier for electrostatic image developer and process for the production thereof | Ken Ohmura, Shigenori Kouno | 1994-12-27 |