TH

Tatsuhiko Hayakawa

Canon: 5 patents #9,253 of 19,416Top 50%
Overall (All Time): #1,050,111 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5930570 Oriented foamed rotary member, and developing device using same Yoshiro Saito, Hiroshi Sasame, Tetsuya Kobayashi, Naoki Enomoto, Tomoyuki Ohkura +1 more 1999-07-27
5873010 Image forming apparatus for performing correction control, based on density of toner image Naoki Enomoto, Takao Aoki, Haruo Fujii, Hiroshi Sasame, Tatsuya Kobayashi +4 more 1999-02-16
5697028 Developer-supplying roller having a surface-modifying powder Tetsuya Kobayashi, Hiroshi Sasame, Naoki Enomoto, Yoshiro Saito 1997-12-09
5666597 Image forming apparatus with delayed discharge by discharge means Hiroshi Sasame, Haruo Fujii, Tatsuya Kobayashi, Tetsuya Kobayashi, Naoki Enomoto +3 more 1997-09-09
5548381 Developing apparatus forming alternating electric field between image bearing member and toner carrying member Yoshiro Saito, Haruo Fujii, Hiroshi Sasame, Tatsuya Kobayashi, Tetsuya Kobayashi +3 more 1996-08-20