YI

Yoshihiko Ichikawa

FI Fujifilm Business Innovation: 4 patents #1,993 of 5,238Top 40%
HP HP: 3 patents #4,446 of 16,619Top 30%
Bridgestone: 1 patents #1,586 of 2,860Top 60%
Overall (All Time): #611,327 of 4,157,543Top 15%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
11947312 Cooling structure for regulation blade of developing device Minguk Go, Horyul Lee, Yunkyu Shim 2024-04-02
11487224 Developing device with elastic film to block air input Mitsuru Oikawa, Ohdug Kwon 2022-11-01
11372346 Developing cartridge having a heat transfer blocking member Ho-Ryul Lee, Ji-Won Moon 2022-06-28
9316984 Sealing member, storage member, and image forming apparatus Teruyo Ryuzaki, Kokichi Kasai, Koichi Kumeta, Masahiro Mori 2016-04-19
8478181 Recording material cooling device and image forming apparatus 2013-07-02
7865122 Recording material cooling apparatus, and image forming apparatus including the same Takaharu Koyama, Shuuichi Yamamura, Masayuki Yamamiya, Satoru Nishikawa, Masayuki Enta +2 more 2011-01-04
6308024 Dust protector for image exposure device and image forming apparatus utilizing the same Yutaka Nakayama, Masayoshi Nishida, Tomonori Ishikawa, Tohru Hisano, Naoyuki Egusa 2001-10-23
D377921 Automobile tire Yasuo Himuro, Hiroshi Imai 1997-02-11