Issued Patents All Time
Showing 25 most recent of 150 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12405567 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Masanari Morioka, Masato Hisano | 2025-09-02 |
| 12298704 | Electrophotographic image forming apparatus, developing apparatus, and coupling member | Masanari Morioka, Takahito Ueno | 2025-05-13 |
| 11720054 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Masanari Morioka, Masato Hisano | 2023-08-08 |
| 11675308 | Electrophotographic image forming apparatus, developing apparatus, and coupling member | Masanari Morioka, Takahito Ueno | 2023-06-13 |
| 11500327 | Cartridge and electrophotographic image forming apparatus which uses cartridge | Takahito Ueno, Masanari Morioka | 2022-11-15 |
| 11237517 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Masanari Morioka, Masato Hisano | 2022-02-01 |
| 11209772 | Cartridge, mounting method for coupling member, and disassemblying method for coupling member | Takahito Ueno, Atsushi Takasaka | 2021-12-28 |
| 11204584 | Electrophotographic image forming apparatus, developing apparatus, and coupling member | Masanari Morioka, Takahito Ueno | 2021-12-21 |
| 11156956 | Rotational force transmitting part | Takahito Ueno, Masanari Morioka, Masato Hisano | 2021-10-26 |
| 11067949 | Cartridge and electrophotographic image forming apparatus which uses cartridge | Takahito Ueno, Masanari Morioka | 2021-07-20 |
| 11061369 | Cartridge and electrophotographic image forming apparatus which uses cartridge | Takahito Ueno, Masanari Morioka | 2021-07-13 |
| 10901360 | Cartridge, mounting method for coupling member, and disassembling method for coupling member | Takahito Ueno, Atsushi Takasaka | 2021-01-26 |
| 10877433 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Masanari Morioka, Masato Hisano | 2020-12-29 |
| 10845756 | Rotational force transmitting part | Takahito Ueno, Masanari Morioka, Masato Hisano | 2020-11-24 |
| 10671018 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Masanari Morioka, Masato Hisano | 2020-06-02 |
| 10620582 | Electrophotographic image forming apparatus, developing apparatus, and coupling member | Masanari Morioka, Takahito Ueno | 2020-04-14 |
| 10585391 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Masanari Morioka, Masato Hisano | 2020-03-10 |
| 10551793 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Masanari Morioka, Masato Hisano | 2020-02-04 |
| 10545450 | Cartridge, mounting method for coupling member, and disassembling method for coupling member | Takahito Ueno, Atsushi Takasaka | 2020-01-28 |
| 10539924 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Masanari Morioka | 2020-01-21 |
| 10539923 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Masanari Morioka | 2020-01-21 |
| 10520887 | Electrophotographic image forming apparatus, developing apparatus, and coupling member | Masanari Morioka, Takahito Ueno | 2019-12-31 |
| 10429794 | Rotational force transmitting part | Takahito Ueno, Masanari Morioka, Masato Hisano | 2019-10-01 |
| 10209670 | Rotational force transmitting part | Takahito Ueno, Masanari Morioka, Masato Hisano | 2019-02-19 |
| 10168665 | Cartridge, and electrophotographic image forming apparatus which uses cartridge | Takahito Ueno, Masanari Morioka | 2019-01-01 |