Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12413220 | Drive circuit of switching element and intelligent power module | — | 2025-09-09 |
| 11462445 | Semiconductor module and semiconductor-module deterioration detecting method | — | 2022-10-04 |
| 6347204 | Toner cartridge with detachable photosensitive member and image forming apparatus using the toner cartridge | — | 2002-02-12 |
| 6289194 | Toner cartridge and image forming apparatus | Minoru Endo, Katsumi Yawata | 2001-09-11 |
| D443636 | Toner cartridge | Minoru Endo, Takashi Naito, Katsumi Yawata | 2001-06-12 |
| 6246854 | Toner cartridge and method using the toner cartridge for feeding a predetermined amount of toner | Takashi Naito, Katsumi Yawata | 2001-06-12 |
| 6226477 | Toner cartridge having separable parts and recording apparatus with toner cartridge | Takashi Naito, Katsumi Yawata | 2001-05-01 |
| D422626 | Toner cartridge with printing device | Takashi Naito, Katsumi Yawata, Kenji Shioya | 2000-04-11 |
| 5917617 | Communication apparatus for transmitting and receiving information | Yasuhiro Hatano, Atsushi Umino, Kanehiro Kawakami | 1999-06-29 |
| 5854955 | Process cartridge | Katumi Yawata, Shuichi Goi | 1998-12-29 |