YF

Yasuhide Fujiwara

Ricoh Company: 8 patents #2,692 of 9,818Top 30%
SE Seiko Epson: 2 patents #4,555 of 7,774Top 60%
Overall (All Time): #506,244 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
10877413 Fixing belt, fixing device, and image forming apparatus Hiroya Abe, Atsuo Hirai, Asae Kamata 2020-12-29
9897954 Base for fixing belt, fixing belt, fixing device, and image forming apparatus Hiroyuki Endo, Shigeru Fujita, Yuzuru Kudoh 2018-02-20
9383698 Substrate, fixing belt with substrate, fixing device with fixing belt, and image forming apparatus Kengo Fujie, Yasuomi Mikami, Yuzuru Kudoh, Takaaki Konno 2016-07-05
9291969 Base for fixing belt, fixing belt, fixing device, and image forming apparatus Hiroyuki Endo, Shigeru Fujita, Yuzuru Kudoh 2016-03-22
7236448 Optical information recording medium and information recording method using the recording medium Yasuo Sawada 2007-06-26
7187642 Optical information recording medium with ROM area having pre-pits Yasuo Sawada 2007-03-06
7082091 Information reproducing method judging a multivalued level of a present cell by referring to judged multivalued levels of a preceding cell and an ensuing cell Akihiko Shimizu, Koubun Sakagami, Hiroyuki Miyata 2006-07-25
6982110 Information recording medium and manufacturing method thereof Hisamitsu Kamezaki, Yasuo Sawada 2006-01-03
5450379 Information storage medium, method of fabricating same, and drive unit for such medium Minoru Fujimori, Satoshi Nebashi, Masuo Tsuji, Hiroaki Nomura, Noriyuki Kamijo +1 more 1995-09-12
5212694 Improper writing prevention circuit and a memory device and a data processing device which include the circuit 1993-05-18