MF

Masaaki Furukawa

Brother Kogyo: 27 patents #292 of 2,767Top 15%
TS Toshiba Mitsubishi-Electric Industrial Systems: 3 patents #110 of 368Top 30%
TT The University Of Tokyo: 3 patents #321 of 2,633Top 15%
NI Nisshinbo Industries: 2 patents #93 of 375Top 25%
LJ Lumentum Japan: 2 patents #27 of 67Top 45%
EB Ebara: 2 patents #752 of 1,611Top 50%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
OJ Oclaro Japan: 1 patents #59 of 108Top 55%
SC Screen Holdings Co.: 1 patents #452 of 686Top 70%
BI Brother Industries: 1 patents #202 of 325Top 65%
KT Kyushu Institute Of Technology: 1 patents #75 of 237Top 35%
Overall (All Time): #71,405 of 4,157,543Top 2%
42
Patents All Time

Issued Patents All Time

Showing 1–25 of 42 patents

Patent #TitleCo-InventorsDate
D1095670 Photosensitive drum unit Junya Sumida 2025-09-30
12242213 Cartridge including holder that holds electrical contact surface and has hole overlapped with the same Shinya Kusuda, Nao Itabashi, Shuhei Hatano, Yasuo Fukamachi 2025-03-04
12197166 Image forming apparatus Kazutoshi Nakamura, Yasuo Fukamachi 2025-01-14
12174559 Toner cartridge having electrical contact surface that can contact electrical contact surface of drum cartridge in accordance with pivotal movement of casing Naoya Kamimura, Hideshi Nishiyama 2024-12-24
12092991 Image forming apparatus including developing guide for guiding attachment and detachment of developing cartridge to and from main body housing Yasuo Fukamachi, Kazutoshi Nakamura 2024-09-17
12066784 Image forming apparatus Nao Itabashi, Misato Osuka, Keita Shimizu, Go Iwasa, Kazutoshi Nakamura +6 more 2024-08-20
12025942 Image forming apparatus Sota Hirano, Takahito Yamaji, Toshiyuki Sano, Tadao Kyotani 2024-07-02
11914323 Image forming apparatus including developing guide for guiding attachment and detachment of developing cartridge to and from main body housing Yasuo Fukamachi, Kazutoshi Nakamura 2024-02-27
11906924 Image forming apparatus Toshiyuki Sano 2024-02-20
11886129 Image forming apparatus to which solvent cartridge that can accommodate therein solvent is detachably attachable independently of developing cartridge Yutaka Kakigahara, Satoshi Murata, Masataka Kamiya, Yasuo Fukamachi, Kazutoshi Nakamura +9 more 2024-01-30
11860558 Image forming apparatus Sota Hirano, Takahito Yamaji, Toshiyuki Sano, Tadao Kyotani 2024-01-02
11846896 Toner cartridge including movable shutter provided with protrusion on which electrical contact surface is provided Hideshi Nishiyama 2023-12-19
11740583 Image forming apparatus Kazutoshi Nakamura, Yasuo Fukamachi 2023-08-29
11650520 Toner cartridge having electrical contact surface that can contact electrical contact surface of drum cartridge in accordance with pivotal movement of casing Naoya Kamimura, Hideshi Nishiyama 2023-05-16
11531298 Process cartridge and image forming apparatus Hideshi Nishiyama, Atsushi Fukaya, Aya Adachi, Ryosuke Hayashi, Shougo Sato 2022-12-20
11474473 Image forming apparatus including drum cartridge having waste toner accumulating unit in which waste toner is accumulated Takashi Shimizu, Shinya Kusuda, Tomitake Aratachi, Yasuo Fukamachi, Keita Shimizu +2 more 2022-10-18
11333697 Three-dimensional surface potential distribution measurement system Tetsuo Yoshimitsu, Yuichi Tsuboi, Kunihiko Hidaka, Akiko Kumada, Hisatoshi Ikeda 2022-05-17
11333999 Toner cartridge including shutter rotatable between first position and second position Kazuma Hinoue, Ryosuke Hayashi, Naoya Kamimura 2022-05-17
11316592 Optical module and optical communication system Koki Sato, Keiichi Murakami, Takuya Sato 2022-04-26
11281155 Process cartridge and image forming apparatus Hideshi Nishiyama, Atsushi Fukaya, Aya Adachi, Ryosuke Hayashi, Shougo Sato 2022-03-22
11249438 Image forming apparatus Kazutoshi Nakamura, Yasuo Fukamachi 2022-02-15
10944479 Optical module and optical communication system Koki Sato, Keiichi Murakami, Takuya Sato 2021-03-09
10908533 Toner cartridge including shutter rotatable between first position and second position Kazuma Hinoue, Ryosuke Hayashi, Naoya Kamimura 2021-02-02
10866557 Image forming apparatus Kazutoshi Nakamura, Yasuo Fukamachi 2020-12-15
10831151 Process cartridge and image forming apparatus Hideshi Nishiyama, Atsushi Fukaya, Aya Adachi, Ryosuke Hayashi, Shougo Sato 2020-11-10